OpenVPN
•
1 like•2,056 views
This document discusses setting up an OpenVPN network between two sites. It includes generating certificates using OpenSSL, configuring a bridge and TAP interfaces using bridging-utils, and configuring the OpenVPN server and client. The OpenVPN server is configured to use the TAP interface and bridge, and authentication is set up using the certificates. Instructions are provided on starting the OpenVPN service and ensuring it starts at system boot.
Report
Share
Report
Share
Download to read offline
Recommended
Openvpn
The document provides instructions for setting up an OpenVPN server to allow both Linux and Mac OS X clients to securely connect. It describes generating certificates and keys, configuring the OpenVPN server, and then configuring Linux and Mac OS X clients to connect to the server. The key steps are:
1) Generate certificates and keys on the server using the OpenVPN easy-rsa scripts.
2) Configure the OpenVPN server configuration file and required files.
3) Distribute client certificates to Linux and Mac clients and configure the clients.
4) Start the OpenVPN server and test connectivity between clients and the server network.
OpenVPN
OpenVPN provides an easy to deploy and configure VPN server with centralized web-based management. The administrator installs OpenVPN Access Server, registers for a free account, and uses a configuration wizard to set up the server. Users authenticate using PAM, Radius, or Active Directory and download the OpenVPN client to connect. The Access Server provides GUI administration of both the server and client authentication.
FreeBSD, ipfw and OpenVPN 2.1 server
The document provides instructions for setting up an OpenVPN 2.1 server in bridged mode on FreeBSD 8. It describes installing OpenVPN, generating certificates, configuring the server, creating up and down scripts, configuring the firewall, and testing the server. The bridged mode allows VPN clients to access local network resources as if they were on site by assigning them an IP on the server's subnet.
Securing Back Office Business Processes with OpenVPN
Talk given for BDPA-Detroit :: Securing Back-Office Processes with OpenVPN (General VPN discussion with some OpenVPN specifics)
Site to-multi site open vpn solution-latest
This document discusses setting up a site-to-multi-site OpenVPN solution with dynamic DNS (DDNS) on CentOS/RedHat Linux servers. It describes advantages of OpenVPN like layer 2/3 VPNs, client protection with internal firewalls, and flexibility through scripting. A sample network diagram is provided showing a typical 3-site layer 3 routing setup with an access server and two client servers connected to different subnets. Instructions are given for installing DDNS and configuring port forwarding to allow connections to an internal LAN IP through a dynamic public IP/domain name.
Automating linux network performance testing
The new virtualization technologies and cloud environments are a big challenge for testing network performance. We need a new approach for testing, using realistic scenarios and flexible tools that allow us to generate packets at high speed. Trex is an Open Source network generator with all these batteries included.
Nginx
Nginx is an open source reverse proxy, load balancer, web server, and HTTP cache. It supports protocols like HTTP, SMTP, POP3, and IMAP. Nginx can be installed on Ubuntu using apt-get install after adding the nginx PPA repository. Configuration files are located in /etc/nginx with the main configuration in nginx.conf. Virtual hosts are configured in files in /etc/nginx/sites-available and enabled in /etc/nginx/sites-enabled. Nginx can be upgraded on the fly using kill signals without downtime.
SSH Tunneling Recipes
This document provides recipes and explanations for using SSH tunneling techniques. SSH tunneling allows creating encrypted tunnels through an SSH connection to securely access services, bypass firewalls and censorship, and forward X11 applications. It discusses local and remote port forwarding, dynamic SOCKS proxying, and tools like autossh and sslh. Common uses of SSH tunneling include securely accessing services on insecure networks, circumventing censorship, opening firewall ports dynamically through port knocking, and forwarding graphical X11 applications remotely.
Recommended
Openvpn
The document provides instructions for setting up an OpenVPN server to allow both Linux and Mac OS X clients to securely connect. It describes generating certificates and keys, configuring the OpenVPN server, and then configuring Linux and Mac OS X clients to connect to the server. The key steps are:
1) Generate certificates and keys on the server using the OpenVPN easy-rsa scripts.
2) Configure the OpenVPN server configuration file and required files.
3) Distribute client certificates to Linux and Mac clients and configure the clients.
4) Start the OpenVPN server and test connectivity between clients and the server network.
OpenVPN
OpenVPN provides an easy to deploy and configure VPN server with centralized web-based management. The administrator installs OpenVPN Access Server, registers for a free account, and uses a configuration wizard to set up the server. Users authenticate using PAM, Radius, or Active Directory and download the OpenVPN client to connect. The Access Server provides GUI administration of both the server and client authentication.
FreeBSD, ipfw and OpenVPN 2.1 server
The document provides instructions for setting up an OpenVPN 2.1 server in bridged mode on FreeBSD 8. It describes installing OpenVPN, generating certificates, configuring the server, creating up and down scripts, configuring the firewall, and testing the server. The bridged mode allows VPN clients to access local network resources as if they were on site by assigning them an IP on the server's subnet.
Securing Back Office Business Processes with OpenVPN
Talk given for BDPA-Detroit :: Securing Back-Office Processes with OpenVPN (General VPN discussion with some OpenVPN specifics)
Site to-multi site open vpn solution-latest
This document discusses setting up a site-to-multi-site OpenVPN solution with dynamic DNS (DDNS) on CentOS/RedHat Linux servers. It describes advantages of OpenVPN like layer 2/3 VPNs, client protection with internal firewalls, and flexibility through scripting. A sample network diagram is provided showing a typical 3-site layer 3 routing setup with an access server and two client servers connected to different subnets. Instructions are given for installing DDNS and configuring port forwarding to allow connections to an internal LAN IP through a dynamic public IP/domain name.
Automating linux network performance testing
The new virtualization technologies and cloud environments are a big challenge for testing network performance. We need a new approach for testing, using realistic scenarios and flexible tools that allow us to generate packets at high speed. Trex is an Open Source network generator with all these batteries included.
Nginx
Nginx is an open source reverse proxy, load balancer, web server, and HTTP cache. It supports protocols like HTTP, SMTP, POP3, and IMAP. Nginx can be installed on Ubuntu using apt-get install after adding the nginx PPA repository. Configuration files are located in /etc/nginx with the main configuration in nginx.conf. Virtual hosts are configured in files in /etc/nginx/sites-available and enabled in /etc/nginx/sites-enabled. Nginx can be upgraded on the fly using kill signals without downtime.
SSH Tunneling Recipes
This document provides recipes and explanations for using SSH tunneling techniques. SSH tunneling allows creating encrypted tunnels through an SSH connection to securely access services, bypass firewalls and censorship, and forward X11 applications. It discusses local and remote port forwarding, dynamic SOCKS proxying, and tools like autossh and sslh. Common uses of SSH tunneling include securely accessing services on insecure networks, circumventing censorship, opening firewall ports dynamically through port knocking, and forwarding graphical X11 applications remotely.
OpenStack networking
This document provides an overview of OpenStack Networking (Neutron) and the different networking plugins and configurations available in Neutron. It discusses the Nova network manager, the Neutron OpenvSwitch plugin configured for VLAN and GRE tunneling modes, Neutron security groups, and Neutron's software defined networking capabilities. Diagrams and examples of packet flows are provided to illustrate how networks are logically and physically implemented using the different Neutron plugins.
Squid proxy server
The document discusses setting up a Squid proxy server on a Linux system to improve network security and performance for a home network. It recommends using an old Pentium II computer with at least 80-100MB of RAM as the proxy server. The document provides instructions for installing Squid and configuring the Squid.conf file to optimize disk usage, caching, and logging. It also explains how to set up the Squid proxy server to work with an iptables firewall for access control and protection from intruders.
QUIC
The document discusses Apache Traffic Server's plans to implement QUIC, including:
- Their goal is to start development of a QUIC implementation, with a first draft coming soon.
- QUIC is a new protocol that implements improved TCP and TLS over UDP. It includes congestion control and loss detection.
- There are 4 QUIC specifications covering the core transport, loss detection, TLS mapping, and HTTP mapping.
- They discussed initial prototype issues and a revised design, with milestones including experimental ATS support in 2018.
Sdnds tw-meetup-2
This document summarizes an introduction to OpenvSwitch presented by pichuang@sdnds-tw. It provides an overview of OpenvSwitch including that it is a production quality, multi-layer virtual switch that supports OpenFlow and is written in platform-independent C. It then describes some key OpenvSwitch features and components and how they interact, such as the datapath, ovs-vswitchd, and ovsdb-server. It concludes with suggestions for debugging and setting OpenvSwitch.
Sistemas operacionais 8
This document discusses various Linux system administration tasks such as managing runlevels, services, users, and networking. It provides details on common Linux services, how to start and stop services, and how to create, suspend, and remove user accounts. It also discusses the /etc/passwd and /etc/shadow files for managing user account information.
Building a moat bastion server
This document describes how to set up a bastion server or "moat" to provide a secure single point of entry to application servers. It involves installing necessary packages on the bastion server like SSH, updating packages, changing the SSH port, disabling password logins, setting up firewall rules to only allow SSH from the bastion server, creating a special user group and keymaster user for access, and configuring SSH proxying through the bastion to access other servers securely.
Virtualized network with openvswitch
This document discusses OpenvSwitch, an open source virtual switch that provides virtual networking and network virtualization capabilities. It describes OpenvSwitch's architecture, features, configuration, and use cases with OpenStack, VMware NSX, MidoNet, Pica8, and Intel DPDK. OpenvSwitch supports virtual networking functions like VLANs, STP, QoS, and tunneling protocols. It integrates with hypervisors and controllers to enable network virtualization and software-defined networking.
Introduction to SSH
The document provides an overview of SSH (Secure Shell), including what it is, its history and architecture, how to install and configure it, use public-key authentication and agent forwarding, and set up port forwarding tunnels. SSH allows securely executing commands, transferring files, and accessing systems behind firewalls.
6. hands on - open mano demonstration in remote pool of servers
The document describes steps for demonstrating the deployment of a VNF using openMANO on a remote pool of NFV compute nodes. Key steps include:
1. Modifying the gateway VM configuration and creating images of the VNF VMs to point to a remote openVIM.
2. Running scripts from the openMANO VM to clean the database, rebuild the environment pointing to the remote openVIM, and copy over the new VM images.
3. Deploying the VNF scenario from openMANO-GUI or via CLI and validating the deployment points to the remote resources.
4. Generating traffic between VNF VMs to test near line-rate 10Gbps performance
5. hands on - building local development environment with Open Mano
This document describes how to build a local development environment using OpenMANO to test network scenarios and virtualized network functions (VNFs). It provides instructions on configuring OpenMANO and OpenVIM, creating tenants, networks, and VNF descriptors, and deploying a sample network scenario with four VNFs connected in series. The deployed scenario can then be managed and monitored using the OpenMANO graphical user interface.
Understanding Open vSwitch
this slide is created for understand open vswitch more easily.
so I tried to make it practical. if you just follow up this scenario, then you will get some knowledge about OVS.
In this document, I mainly use only two command "ip" and "ovs-vsctl" to show you the ability of these commands.
Docker networking basics & coupling with Software Defined Networks
This presentation reminds Docker networking, exposes Software Defined Network basic paradigms, and then proposes a mixed-up implementation taking benefits of a coupled use of these two technologies. Implementation model proposed could be a good starting point to create multi-tenant PaaS platforms.
As a bonus, OpenStack Neutron internal design is presented.
You can also have a look on our previous presentation related to enterprise patterns for Docker:
http://fr.slideshare.net/ArnaudMAZIN/docker-meetup-paris-enterprise-docker
Open vSwitch Implementation Options
Netronome's Nick Tausanovitch, VP of Solutions Architecture and Silicon Product Management, Linley Data Center Conference in Santa Clara, CA on February 9, 2016.
SPDY & HTTP2.0 & QUIC - #bpstudy 2013-08-28
SPDY HTTP2 and QUIC are protocols for improving web performance. SPDY was developed by Google and provided features like request multiplexing and header compression. HTTP/2 was standardized by the IETF building upon SPDY. QUIC develops reliable transport on UDP to address TCP limitations with SPDY. Current implementations include nghttp2 library and HTTP2Cat tool for testing and development.
青云CoreOS虚拟机部署kubernetes
This document describes how to deploy a Kubernetes cluster on CoreOS virtual machines including setting up the Kubernetes master and nodes. It details installing software packages, configuring Kubernetes components like etcd and flannel, and creating replication controllers and services to deploy applications. The cluster consists of a master and two nodes with nginx pods load balanced across nodes using a QingCloud load balancer.
Technical Overview of QUIC
QUIC is a new transport protocol developed by Google that aims to solve issues with TCP and TLS by multiplexing streams over UDP. It includes features like stream multiplexing, connection migration, 0-RTT connection establishment, and forward error correction. The document provides technical details on QUIC including its version history, wire format specifications, frame types, cryptographic handshake process, and examples of 0-RTT, 1-RTT, and 2-RTT connection establishment.
Tech Talk by Ben Pfaff: Open vSwitch - Part 2
Open vSwitch - Part 2
A previous presentation in March 2013 at Bay Area Network Virtualization meetup covered the past, present, and predicted future of Open vSwitch. This talk picks up where that one left off, covering improvements made in Open vSwitch since then, new directions for the coming year, and some related work of interest in the industry.
About Ben Pfaff (twitter: @Ben_Pfaff)
Ben joined Nicira as one of its first employees in 2007 after finishing his PhD at Stanford. Since then he has been working on what became OpenFlow and Open vSwitch. He also made some early contributions to the NOX controller. He has been involved with free software since about 1996, when he started work on GNU PSPP and joined the Debian project.
More info @ http://meetup.com/openvswitch
Follow us on twitter @nvirters
OVS-NFV Tutorial
1) The document provides an agenda and instructions for a hands-on tutorial on OVS/NFV basics using Open vSwitch, Linux containers, Docker, and virtual private networks.
2) It describes how to access two provided virtual machines and configure port mirroring with Open vSwitch to monitor network traffic between VMs.
3) Instructions are given for installing Linux containers on the VMs, configuring network interfaces and scripts, and testing connectivity between containers using GRE tunnels.
4) The tutorial also covers installing and configuring Docker containers on the VMs, creating virtual networks between them using GRE tunnels, and deploying example containers from Docker Hub.
sshuttle VPN (2011-04)
Sshuttle is a VPN that runs on top of ssh. It allows connecting to remote networks through any ssh server without requiring administrative access or special server software. Sshuttle uses transparent proxying instead of encapsulating traffic, avoiding issues with TCP-over-TCP. It also includes features like self-assembly, DNS remangling, automatic host and network discovery to simplify VPN configuration and usage.
Open VSwitch .. Use it for your day to day needs
Slides of open vSwitch used for Fudcon 2015.
Main agenda for this talk was.. why openvswitch is a better alternative to Linux bridge and why you should start using it as the bridge for your KVM host.
3 manual installation of open vpn
The document provides steps to install and configure OpenVPN on CentOS to create a VPN server. It describes installing required packages, setting up bridging and network interfaces, generating certificates using EasyRSA, configuring iptables, and writing server and client configuration files.
Linux Network commands
This document provides an overview of various networking tools in Linux, including commands for network configuration (ifconfig, route), connectivity testing (ping, traceroute), name resolution (host, nslookup), port and protocol inspection (netstat, tcpdump), and secure remote access (SSH, PuTTY). It also covers tools for firewall management (ufw), network mapping (Nmap), raw socket programming (netcat), link status (ethtool), and more. Examples are given for common tasks like viewing routing tables, capturing packets, remotely controlling systems, and accessing services over Telnet versus SSH. A references section at the end provides additional learning resources.
More Related Content
What's hot
OpenStack networking
This document provides an overview of OpenStack Networking (Neutron) and the different networking plugins and configurations available in Neutron. It discusses the Nova network manager, the Neutron OpenvSwitch plugin configured for VLAN and GRE tunneling modes, Neutron security groups, and Neutron's software defined networking capabilities. Diagrams and examples of packet flows are provided to illustrate how networks are logically and physically implemented using the different Neutron plugins.
Squid proxy server
The document discusses setting up a Squid proxy server on a Linux system to improve network security and performance for a home network. It recommends using an old Pentium II computer with at least 80-100MB of RAM as the proxy server. The document provides instructions for installing Squid and configuring the Squid.conf file to optimize disk usage, caching, and logging. It also explains how to set up the Squid proxy server to work with an iptables firewall for access control and protection from intruders.
QUIC
The document discusses Apache Traffic Server's plans to implement QUIC, including:
- Their goal is to start development of a QUIC implementation, with a first draft coming soon.
- QUIC is a new protocol that implements improved TCP and TLS over UDP. It includes congestion control and loss detection.
- There are 4 QUIC specifications covering the core transport, loss detection, TLS mapping, and HTTP mapping.
- They discussed initial prototype issues and a revised design, with milestones including experimental ATS support in 2018.
Sdnds tw-meetup-2
This document summarizes an introduction to OpenvSwitch presented by pichuang@sdnds-tw. It provides an overview of OpenvSwitch including that it is a production quality, multi-layer virtual switch that supports OpenFlow and is written in platform-independent C. It then describes some key OpenvSwitch features and components and how they interact, such as the datapath, ovs-vswitchd, and ovsdb-server. It concludes with suggestions for debugging and setting OpenvSwitch.
Sistemas operacionais 8
This document discusses various Linux system administration tasks such as managing runlevels, services, users, and networking. It provides details on common Linux services, how to start and stop services, and how to create, suspend, and remove user accounts. It also discusses the /etc/passwd and /etc/shadow files for managing user account information.
Building a moat bastion server
This document describes how to set up a bastion server or "moat" to provide a secure single point of entry to application servers. It involves installing necessary packages on the bastion server like SSH, updating packages, changing the SSH port, disabling password logins, setting up firewall rules to only allow SSH from the bastion server, creating a special user group and keymaster user for access, and configuring SSH proxying through the bastion to access other servers securely.
Virtualized network with openvswitch
This document discusses OpenvSwitch, an open source virtual switch that provides virtual networking and network virtualization capabilities. It describes OpenvSwitch's architecture, features, configuration, and use cases with OpenStack, VMware NSX, MidoNet, Pica8, and Intel DPDK. OpenvSwitch supports virtual networking functions like VLANs, STP, QoS, and tunneling protocols. It integrates with hypervisors and controllers to enable network virtualization and software-defined networking.
Introduction to SSH
The document provides an overview of SSH (Secure Shell), including what it is, its history and architecture, how to install and configure it, use public-key authentication and agent forwarding, and set up port forwarding tunnels. SSH allows securely executing commands, transferring files, and accessing systems behind firewalls.
6. hands on - open mano demonstration in remote pool of servers
The document describes steps for demonstrating the deployment of a VNF using openMANO on a remote pool of NFV compute nodes. Key steps include:
1. Modifying the gateway VM configuration and creating images of the VNF VMs to point to a remote openVIM.
2. Running scripts from the openMANO VM to clean the database, rebuild the environment pointing to the remote openVIM, and copy over the new VM images.
3. Deploying the VNF scenario from openMANO-GUI or via CLI and validating the deployment points to the remote resources.
4. Generating traffic between VNF VMs to test near line-rate 10Gbps performance
5. hands on - building local development environment with Open Mano
This document describes how to build a local development environment using OpenMANO to test network scenarios and virtualized network functions (VNFs). It provides instructions on configuring OpenMANO and OpenVIM, creating tenants, networks, and VNF descriptors, and deploying a sample network scenario with four VNFs connected in series. The deployed scenario can then be managed and monitored using the OpenMANO graphical user interface.
Understanding Open vSwitch
this slide is created for understand open vswitch more easily.
so I tried to make it practical. if you just follow up this scenario, then you will get some knowledge about OVS.
In this document, I mainly use only two command "ip" and "ovs-vsctl" to show you the ability of these commands.
Docker networking basics & coupling with Software Defined Networks
This presentation reminds Docker networking, exposes Software Defined Network basic paradigms, and then proposes a mixed-up implementation taking benefits of a coupled use of these two technologies. Implementation model proposed could be a good starting point to create multi-tenant PaaS platforms.
As a bonus, OpenStack Neutron internal design is presented.
You can also have a look on our previous presentation related to enterprise patterns for Docker:
http://fr.slideshare.net/ArnaudMAZIN/docker-meetup-paris-enterprise-docker
Open vSwitch Implementation Options
Netronome's Nick Tausanovitch, VP of Solutions Architecture and Silicon Product Management, Linley Data Center Conference in Santa Clara, CA on February 9, 2016.
SPDY & HTTP2.0 & QUIC - #bpstudy 2013-08-28
SPDY HTTP2 and QUIC are protocols for improving web performance. SPDY was developed by Google and provided features like request multiplexing and header compression. HTTP/2 was standardized by the IETF building upon SPDY. QUIC develops reliable transport on UDP to address TCP limitations with SPDY. Current implementations include nghttp2 library and HTTP2Cat tool for testing and development.
青云CoreOS虚拟机部署kubernetes
This document describes how to deploy a Kubernetes cluster on CoreOS virtual machines including setting up the Kubernetes master and nodes. It details installing software packages, configuring Kubernetes components like etcd and flannel, and creating replication controllers and services to deploy applications. The cluster consists of a master and two nodes with nginx pods load balanced across nodes using a QingCloud load balancer.
Technical Overview of QUIC
QUIC is a new transport protocol developed by Google that aims to solve issues with TCP and TLS by multiplexing streams over UDP. It includes features like stream multiplexing, connection migration, 0-RTT connection establishment, and forward error correction. The document provides technical details on QUIC including its version history, wire format specifications, frame types, cryptographic handshake process, and examples of 0-RTT, 1-RTT, and 2-RTT connection establishment.
Tech Talk by Ben Pfaff: Open vSwitch - Part 2
Open vSwitch - Part 2
A previous presentation in March 2013 at Bay Area Network Virtualization meetup covered the past, present, and predicted future of Open vSwitch. This talk picks up where that one left off, covering improvements made in Open vSwitch since then, new directions for the coming year, and some related work of interest in the industry.
About Ben Pfaff (twitter: @Ben_Pfaff)
Ben joined Nicira as one of its first employees in 2007 after finishing his PhD at Stanford. Since then he has been working on what became OpenFlow and Open vSwitch. He also made some early contributions to the NOX controller. He has been involved with free software since about 1996, when he started work on GNU PSPP and joined the Debian project.
More info @ http://meetup.com/openvswitch
Follow us on twitter @nvirters
OVS-NFV Tutorial
1) The document provides an agenda and instructions for a hands-on tutorial on OVS/NFV basics using Open vSwitch, Linux containers, Docker, and virtual private networks.
2) It describes how to access two provided virtual machines and configure port mirroring with Open vSwitch to monitor network traffic between VMs.
3) Instructions are given for installing Linux containers on the VMs, configuring network interfaces and scripts, and testing connectivity between containers using GRE tunnels.
4) The tutorial also covers installing and configuring Docker containers on the VMs, creating virtual networks between them using GRE tunnels, and deploying example containers from Docker Hub.
sshuttle VPN (2011-04)
Sshuttle is a VPN that runs on top of ssh. It allows connecting to remote networks through any ssh server without requiring administrative access or special server software. Sshuttle uses transparent proxying instead of encapsulating traffic, avoiding issues with TCP-over-TCP. It also includes features like self-assembly, DNS remangling, automatic host and network discovery to simplify VPN configuration and usage.
Open VSwitch .. Use it for your day to day needs
Slides of open vSwitch used for Fudcon 2015.
Main agenda for this talk was.. why openvswitch is a better alternative to Linux bridge and why you should start using it as the bridge for your KVM host.
What's hot (20)
6. hands on - open mano demonstration in remote pool of servers
6. hands on - open mano demonstration in remote pool of servers
5. hands on - building local development environment with Open Mano
5. hands on - building local development environment with Open Mano
Docker networking basics & coupling with Software Defined Networks
Docker networking basics & coupling with Software Defined Networks
Similar to OpenVPN
3 manual installation of open vpn
The document provides steps to install and configure OpenVPN on CentOS to create a VPN server. It describes installing required packages, setting up bridging and network interfaces, generating certificates using EasyRSA, configuring iptables, and writing server and client configuration files.
Linux Network commands
This document provides an overview of various networking tools in Linux, including commands for network configuration (ifconfig, route), connectivity testing (ping, traceroute), name resolution (host, nslookup), port and protocol inspection (netstat, tcpdump), and secure remote access (SSH, PuTTY). It also covers tools for firewall management (ufw), network mapping (Nmap), raw socket programming (netcat), link status (ethtool), and more. Examples are given for common tasks like viewing routing tables, capturing packets, remotely controlling systems, and accessing services over Telnet versus SSH. A references section at the end provides additional learning resources.
Make container without_docker_6-overlay-network_1
분산환경에서 컨테이너 간의 통신은 어떻게 이루어 지는 것일까요? 3,4편에서는 호스트 안에 가상네트워크를 만들어보았습니다. 6편에서는 이를 바탕으로 분산환경에서 호스트 간에 가상 네트워크로 통신이 가능하도록 만들어 봅니다. 이 방법은 실제 쿠버네티스 flannel 등의 CNI에서 사용하고 있는 vxlan 기반의 오버레이 네트워크 구성을 다룹니다.
Thebasicintroductionofopenvswitch
This document provides an introduction to Open vSwitch (OVS), including what a virtual switch is, examples of virtual network topologies using OVS, the main components of OVS, and how to use OVS to build network topologies. It discusses features of OVS like visibility into inter-VM communication and support for tunnels. It also demonstrates OVS configurations for virtual machine to virtual machine communication using GRE tunnels and a demo topology with OVS bridges communicating over a GRE tunnel.
Openstack openswitch basics
This document provides an overview of Open vSwitch, a software-based virtual switch. It discusses what a virtual switch is, how Open vSwitch uses a userspace controller and kernel datapath to provide network abstractions. The document outlines Open vSwitch components like ovsdb-server and ovs-vswitchd, and demonstrates how to use Open vSwitch to build virtual network topologies with VMs, tunnels, and bridges. Examples of QoS configuration and a GRE tunnel demo are also presented.
The Basic Introduction of Open vSwitch
This document provides an overview of Open vSwitch, including what it is, its main components, features, and how it can be used to build virtual network topologies. Open vSwitch is a software-defined networking switch that can be used to create virtual networks and handle network traffic between virtual machines and tunnels. It uses a distributed database, ovsdb-server, and a userspace daemon, ovs-vswitchd, to implement features like virtual switching, tunneling protocols, and OpenFlow support. Examples are provided for using Open vSwitch with KVM virtual machines and GRE tunnels to create virtual network topologies.
Deeper Dive in Docker Overlay Networks
The Docker network overlay driver relies on several technologies: network namespaces, VXLAN, Netlink and a distributed key-value store. This talk will present each of these mechanisms one by one along with their userland tools and show hands-on how they interact together when setting up an overlay to connect containers. The talk will continue with a demo showing how to build your own simple overlay using these technologies. Finally, it will show how we can dynamically distribute IP and MAC information to every hosts in the overlay.
SDNDS.TW Mininet
This document discusses Mininet, a network emulator that allows users to create virtual networks on a single machine for testing SDN controllers and applications. It provides an introduction to Mininet, outlines its basic operation and command line interface. It also describes how to create custom network topologies using Mininet's Python API and various pre-defined topology templates. Finally, it discusses some common use cases for Mininet including connecting virtual hosts to the internet and emulating multi-subnet networks.
Component pack 6006 install guide
This document provides installation instructions for Component Pack 6.0.0.6 across three servers. It details preparing the system by opening required firewall ports, installing prerequisites like Docker and Kubernetes, initializing the master node, joining worker nodes, and installing Helm. It also covers tasks like creating persistent volumes, labeling worker nodes for Elasticsearch, pushing images to the Docker registry, bootstrapping the Kubernetes cluster, and installing the Component Pack connections-env.
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)
20-Feb-2015
SAKURA Internet Research Center.
Senior Researcher / Naoto MATSUMOTO
[오픈소스컨설팅] Linux Network Troubleshooting
The document discusses Linux networking commands and tools. It provides examples of using ip commands to view and configure network interfaces, routes, neighbors, and rules. It also shows tcpdump for packet capture and nmap for port scanning. Firewalls are configured using iptables to allow traffic from a specific source to a web server port.
Kickstart
1. The document describes how to set up a PXE kickstart server to automatically install CentOS 5.3 over the network using DHCP and TFTP. It provides instructions for configuring the TFTP, DHCP and NFS servers, creating a kickstart installation tree and kickstart files.
2. Additional clients can be added by modifying the DHCP configuration to assign them a static IP, creating a customized kickstart file, and PXE booting the client to initiate the network installation.
3. Example configurations are provided for the /etc/dhcpd.conf DHCP configuration file and a sample kickstart file.
9 creating cent_os 7_mages_for_dpdk_training
This document provides instructions for setting up a CentOS 7 VM using VirtualBox for DPDK training. It describes installing CentOS 7 Minimal, configuring the VM with 4 network interfaces, installing DPDK and related tools, compiling sample applications like l3fwd and pktgen, and manually starting the applications on the VM to test basic packet forwarding functionality.
Présentation Ikoula au Meet-up Docker à l'école 42
This document describes how to set up a L2TP/IPsec VPN client within a Docker container. It provides details on:
1) The motivation for putting the VPN client in a container, including easier deployment and configuration.
2) The components used - including Ubuntu, Xl2tpd, StrongSwan, and scripts to configure the VPN connection.
3) How to build and run the Docker image, mapping ports and volumes and setting environment variables to configure the VPN connection.
4) Checking the status of the established VPN tunnel once started.
Mise en place d'un client VPN l2tp IPsec sous docker
This document describes how to set up a L2TP/IPsec VPN client within a Docker container. It provides details on:
1) The motivation for putting the VPN client in a container, including easier deployment and configuration.
2) The components used - including Ubuntu, StrongSwan for IPsec, and Xl2tpd for L2TP.
3) The steps to build a Docker image with these components and configure it using environment variables to connect to a VPN server.
4) How to run the Docker container, check the VPN connection status, and next steps to improve the image size and routing.
ByPat博客出品Lvs+keepalived
This document discusses using LVS (Linux Virtual Server) and Keepalived to implement high performance and high availability load balancing. It provides instructions on installing LVS and Keepalived, configuring LVS for load balancing, and using Keepalived to realize load balancing and high availability. Key aspects covered include using LVS-DR and real server scripts, and configuring Keepalived on the master and backup servers.
[OpenStack 하반기 스터디] HA using DVR
This document describes how to configure an OpenStack environment with Distributed Virtual Router (DVR) functionality using VirtualBox virtual machines. It includes details on setting up 3 VMs for the controller, network, and compute nodes, installing OpenStack using scripts, configuring IP addresses and users, replicating the compute node, and verifying the DVR installation and environment.
Deep Dive in Docker Overlay Networks
The Docker network overlay driver relies on several technologies: network namespaces, VXLAN, Netlink and a distributed key-value store. This talk will present each of these mechanisms one by one along with their userland tools and show hands-on how they interact together when setting up an overlay to connect containers.
The talk will continue with a demo showing how to build your own simple overlay using these technologies.
Don't Get Hacked on Hostile WiFi
Presentation given at Ohio Linuxfest 2008 on how to lock down a Linux laptop for use in hostile wifi situations (ex: hacker con).
Intel DPDK Step by Step instructions
The document provides step-by-step instructions for building and running Intel DPDK sample applications on a test environment with 3 virtual machines connected by 10G NICs. It describes compiling and running the helloworld, L2 forwarding, and L3 forwarding applications, as well as using the pktgen tool for packet generation between VMs to test forwarding performance. Key steps include preparing the Linux kernel for DPDK, compiling applications, configuring ports and MAC addresses, and observing packet drops to identify performance bottlenecks.
Similar to OpenVPN (20)
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)
High Availability Server Clustering without ILB(Internal Load Balancer) (MEMO)
Présentation Ikoula au Meet-up Docker à l'école 42
Présentation Ikoula au Meet-up Docker à l'école 42
Mise en place d'un client VPN l2tp IPsec sous docker
Mise en place d'un client VPN l2tp IPsec sous docker
Recently uploaded
Presentation of the OECD Artificial Intelligence Review of Germany
Consult the full report at https://www.oecd.org/digital/oecd-artificial-intelligence-review-of-germany-609808d6-en.htm
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024
Neha Bajwa, Vice President of Product Marketing, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
A tale of scale & speed: How the US Navy is enabling software delivery from l...
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
“Building and Scaling AI Applications with the Nx AI Manager,” a Presentation...
“Building and Scaling AI Applications with the Nx AI Manager,” a Presentation...Edge AI and Vision Alliance
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2024/06/building-and-scaling-ai-applications-with-the-nx-ai-manager-a-presentation-from-network-optix/
Robin van Emden, Senior Director of Data Science at Network Optix, presents the “Building and Scaling AI Applications with the Nx AI Manager,” tutorial at the May 2024 Embedded Vision Summit.
In this presentation, van Emden covers the basics of scaling edge AI solutions using the Nx tool kit. He emphasizes the process of developing AI models and deploying them globally. He also showcases the conversion of AI models and the creation of effective edge AI pipelines, with a focus on pre-processing, model conversion, selecting the appropriate inference engine for the target hardware and post-processing.
van Emden shows how Nx can simplify the developer’s life and facilitate a rapid transition from concept to production-ready applications.He provides valuable insights into developing scalable and efficient edge AI solutions, with a strong focus on practical implementation.Microsoft - Power Platform_G.Aspiotis.pdf
Revolutionizing Application Development
with AI-powered low-code, presentation by George Aspiotis, Sr. Partner Development Manager, Microsoft
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Discover how MongoDB Atlas and vector search technology can revolutionize your application's search capabilities. This comprehensive presentation covers:
* What is Vector Search?
* Importance and benefits of vector search
* Practical use cases across various industries
* Step-by-step implementation guide
* Live demos with code snippets
* Enhancing LLM capabilities with vector search
* Best practices and optimization strategies
Perfect for developers, AI enthusiasts, and tech leaders. Learn how to leverage MongoDB Atlas to deliver highly relevant, context-aware search results, transforming your data retrieval process. Stay ahead in tech innovation and maximize the potential of your applications.
#MongoDB #VectorSearch #AI #SemanticSearch #TechInnovation #DataScience #LLM #MachineLearning #SearchTechnology
UiPath Test Automation using UiPath Test Suite series, part 6
Welcome to UiPath Test Automation using UiPath Test Suite series part 6. In this session, we will cover Test Automation with generative AI and Open AI.
UiPath Test Automation with generative AI and Open AI webinar offers an in-depth exploration of leveraging cutting-edge technologies for test automation within the UiPath platform. Attendees will delve into the integration of generative AI, a test automation solution, with Open AI advanced natural language processing capabilities.
Throughout the session, participants will discover how this synergy empowers testers to automate repetitive tasks, enhance testing accuracy, and expedite the software testing life cycle. Topics covered include the seamless integration process, practical use cases, and the benefits of harnessing AI-driven automation for UiPath testing initiatives. By attending this webinar, testers, and automation professionals can gain valuable insights into harnessing the power of AI to optimize their test automation workflows within the UiPath ecosystem, ultimately driving efficiency and quality in software development processes.
What will you get from this session?
1. Insights into integrating generative AI.
2. Understanding how this integration enhances test automation within the UiPath platform
3. Practical demonstrations
4. Exploration of real-world use cases illustrating the benefits of AI-driven test automation for UiPath
Topics covered:
What is generative AI
Test Automation with generative AI and Open AI.
UiPath integration with generative AI
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Communications Mining Series - Zero to Hero - Session 1
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Climate Impact of Software Testing at Nordic Testing Days
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
GraphSummit Singapore | Enhancing Changi Airport Group's Passenger Experience...
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
Full-RAG: A modern architecture for hyper-personalization
Mike Del Balso, CEO & Co-Founder at Tecton, presents "Full RAG," a novel approach to AI recommendation systems, aiming to push beyond the limitations of traditional models through a deep integration of contextual insights and real-time data, leveraging the Retrieval-Augmented Generation architecture. This talk will outline Full RAG's potential to significantly enhance personalization, address engineering challenges such as data management and model training, and introduce data enrichment with reranking as a key solution. Attendees will gain crucial insights into the importance of hyperpersonalization in AI, the capabilities of Full RAG for advanced personalization, and strategies for managing complex data integrations for deploying cutting-edge AI solutions.
Essentials of Automations: The Art of Triggers and Actions in FME
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Removing Uninteresting Bytes in Software Fuzzing
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
UiPath Test Automation using UiPath Test Suite series, part 5
Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
TrustArc Webinar - 2024 Global Privacy Survey
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
Artificial Intelligence for XMLDevelopment
In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject.
We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup.
Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved.
The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring.
The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise.
By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.
Introducing Milvus Lite: Easy-to-Install, Easy-to-Use vector database for you...
Join us to introduce Milvus Lite, a vector database that can run on notebooks and laptops, share the same API with Milvus, and integrate with every popular GenAI framework. This webinar is perfect for developers seeking easy-to-use, well-integrated vector databases for their GenAI apps.
Recently uploaded (20)
Presentation of the OECD Artificial Intelligence Review of Germany
Presentation of the OECD Artificial Intelligence Review of Germany
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024
GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024
A tale of scale & speed: How the US Navy is enabling software delivery from l...
A tale of scale & speed: How the US Navy is enabling software delivery from l...
“Building and Scaling AI Applications with the Nx AI Manager,” a Presentation...
“Building and Scaling AI Applications with the Nx AI Manager,” a Presentation...
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
Unlock the Future of Search with MongoDB Atlas_ Vector Search Unleashed.pdf
UiPath Test Automation using UiPath Test Suite series, part 6
UiPath Test Automation using UiPath Test Suite series, part 6
Communications Mining Series - Zero to Hero - Session 1
Communications Mining Series - Zero to Hero - Session 1
Climate Impact of Software Testing at Nordic Testing Days
Climate Impact of Software Testing at Nordic Testing Days
GraphSummit Singapore | Enhancing Changi Airport Group's Passenger Experience...
GraphSummit Singapore | Enhancing Changi Airport Group's Passenger Experience...
Full-RAG: A modern architecture for hyper-personalization
Full-RAG: A modern architecture for hyper-personalization
Essentials of Automations: The Art of Triggers and Actions in FME
Essentials of Automations: The Art of Triggers and Actions in FME
UiPath Test Automation using UiPath Test Suite series, part 5
UiPath Test Automation using UiPath Test Suite series, part 5
Introducing Milvus Lite: Easy-to-Install, Easy-to-Use vector database for you...
Introducing Milvus Lite: Easy-to-Install, Easy-to-Use vector database for you...
OpenVPN
- 1. Interconectarea sediilor companiei Emil CHERICHEȘ Geek Meet #3 Tîrgu Mureș 12 Decembrie 2009
- 2. Situația
- 4. su -c 'rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release- 5-3.noarch.rpm' http://fedoraproject.org/wiki/EPEL EPEL Extra Packages for Enterprise Linux
- 5. OpenVPN # yum install openvpn
- 6. /etc/init.d/tunctl #! /bin/bash # # network Bring up/down tun0 # # chkconfig: 2345 9 90 # description: Activates/Deactivates tap0. # case $1 in start) /usr/sbin/tunctl -t tap0 ;; stop) /usr/sbin/tunctl -d tap0 ;; *) echo $"Usage: $0 {start|stop}" exit 1 Esac exit $rc chkconfig tunctl on Interfețele TAP Interfețele de rețea virtuale pe care comunică OpenVPN
- 7. yum install bridge-utils tunctl cd /etc/sysconfig/network-scripts/ cp ifcfg-eth0 ifcfg-br0 ifcfg-eth0: ifcfg-br0: ifcfg-tap0: DEVICE=eth0 DEVICE=br0 DEVICE=tap0 BOOTPROTO=static TYPE=Bridge BOOTPROTO=static BRIDGE=br0 BOOTPROTO=static ONBOOT=yes HWADDR=08:00:27: IPADDR=192.168.1.1 BRIDGE=br0 A1:51:87 NETMASK=255.255.2 ONBOOT=yes 55.0 TYPE=Ethernet ONBOOT=yes Rețeaua Configurarea bridge-ului
- 12. Server Client ca.crt ca.crt gw1.crt gw2.crt gw1.key gw2.key dh1024.pem /etc/openvpn /usr/share/doc/openvpn-2.1/sample-config-files/ certificatele care unde trebuie puse
- 13. port 1194 proto udp dev tap0 ca ca.crt cert gw1.crt key gw1.key dh dh1024.pem server-bridge 192.168.1.1 255.255.255.0 192.168.1.230 192.168.1.235 client-to-client keepalive 10 120 comp-lzo persist-key persist-tun status openvpn-status.log verb 3 server.conf Serverul OpenVPN
- 14. client dev tap0 proto udp remote GW1_PUBLIC_IP 1194 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert gw2.crt key gw2.key ns-cert-type server comp-lzo verb 3 client.conf Clientul OpenVPN
- 15. service openvpn start chkconfig openvpn on startup Pornirea servicului și setarea inițializării sistemului
- 16. Situația
- 17. Mulțumesc Emil CHERIHCHEȘ http://emil.cheriches.ro