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Telex is a new approach to circumventing Internet censorship that involves placing anticensorship technology in the core network infrastructure of large ISPs. It consists of a Telex station at friendly ISPs and a Telex client program that tunnels connections to services offered by the Telex station, such as an HTTP proxy, making the connections uncensorable. Researchers have created a proof-of-concept implementation including a demonstration ISP running the Telex station and clients can access limited sites through the public demo for research purposes.
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Network, IP address 147.17.2.254 The Internal Router in the Corporate Network has the
following interfaces: - FastEthernet 0/0: Connected to the Workstation Network, IP address
147.17.2.254 - FastEthernet 1/0: Connected to the Server Network, IP address 147.17.3.254 -
FastEthernet 2/0: Connected to the Admin Network, IP address 147.17.4.254 The Screened
Subnet contains the following servers: - DNS Server 147.17.1.50 - Mail Server 147.17.1.60 -
Web Server 147.17.1.70 The Workstation Network contains the following machines: 2/6 -
Internal PCs and Workstations 147.17.2.1-254 (even though 147.17.2.254/_ .ne interfaces of the
routers, treat them as if they were PCS) The Internal Server Network contains the following
servers: - Internal NTP Server 147.17.3.10 - MySQL Database Server 147.17.3.20 The Admin
Network contains the following machines: - Admin PCs 147.17.4.1-127 - Syslog Server
147.17.4.128 Your task is to configure named ACLs in the two routers to implement the security
policy outlined below (only IPv4 needs to be considered). Please note that some networking
aspects that are usually required for the network to work might be missing - you can ignore
these. In this section, IP addresses are combined with ports in format ipaddress:port, where port
indicates TCP (T) or UDP (U) as well as port number. Ranges are indicated as follows: - Port in
range x to y (both inclusive): Txy - Any port greater than x:T>x - Any port greater or equal to
x:T>=x - Any port less than x:T1023 to 147.17.4.128:T514) and can contact the NTP server
(147.17.x.x:U>1023 to 147.17.3.10:U123). - Business partner machines can connect to the
Syslog Server via SSH (136.201.x.x:T>1023 to 147.17.4.128:T22), can send secure log message
to the Syslog Server (136.201.x.x:T>1023 to 147.17.4.128:T514) and contact the NTP Server
(136.201.x.x:U>1023 to 147.17.3.
Internet of Things - protocols review (MeetUp Wireless & Networks, Poznań 21....
- The document provides an overview of various Internet of Things (IoT) communication protocols including MQTT, HTTP/REST, and DDS.
- It discusses the key aspects of MQTT including its publish-subscribe model, use of a message broker, lightweight design, and quality of service levels. HTTP/REST is described as using a client-server model with status codes and uniform interfaces.
- The document also compares MQTT and HTTP/REST, noting MQTT is simpler, message-centric, and ideal for low-power IoT devices, while HTTP/REST is more complex, document-centric, and the standard web protocol.
Basic Cisco ASA 5506-x Configuration (Firepower)
This document provides instructions for configuring basic network security on a Cisco ASA 5506-x firewall. It outlines requirements for separating networks into an Internet, user, and DMZ segment. It then provides steps to update the ASA software, configure interfaces and security levels, enable internet access via NAT and routing, allow web access to servers on the DMZ, optionally configure DHCP, and optionally redirect traffic to the FirePOWER module. It also includes steps for hardening the device by shutting down unused interfaces, enabling SSH access, and configuring time and logging.
Optimizing cloud resources for delivering iptv services through virtualization
Cloud computing allows users to access data and applications from any device through the internet. It provides Infrastructure as a service (IaaS), Platform as a service (PaaS) and Software as a service (SaaS) through public, private or hybrid clouds. Internet Protocol television (IPTV) delivers video and audio over the internet to computers, televisions or mobile devices. The existing IPTV system has high server usage during instant channel changes but servers are idle at other times. A new system is proposed to dynamically shift resources between IPTV services using cloud computing and virtualization to better utilize servers.
EMBEDDED WEB TECHNOLOGY
This document discusses embedded web server technology (EWT), which combines embedded systems with the world wide web. It defines embedded systems and EWT, noting that EWT was developed by NASA in the late 1990s. It then explains what embedded technology and web servers are, how the client-server model works, and some key web-related technologies like HTTP, HTML, XML. It outlines some applications of EWT like space communication and biotechnology. Finally, it concludes that EWT has advantages over legacy communication and provides references for further reading.
A NETWORK-BASED DAC OPTIMIZATION PROTOTYPE SOFTWARE 2 (1).pdf
The International Journal of Engineering and Science and Research is online journal in English published. The aim is to publish peer review and research articles without delay in the developing in engineering and science Research.The International Journal of Engineering and Science and Research is online journal in English published. The aim is to publish peer review and research articles without delay in the developing in engineering and science Research.
Basic to advance protocols
This tutorial gives very good understanding on Computer Networks protocols After completing this tutorial, You will find yourself at a moderate level of expertise in knowing Advance Networking protocols (, from where you can take yourself to next levels.
20 common ports
This document lists 20 common ports and provides a brief description of each port's purpose. Some key ports include port 21 for FTP, port 25 for SMTP email, port 80 for HTTP web browsing, and port 443 for HTTPS secure web browsing. The document provides technical details on ports used for services like DNS, telnet, POP3 email, NTP time synchronization, and remote desktop access.
Feature satip1
1. The document discusses using IPTV (Internet Protocol Television) to distribute digital TV signals over a home network rather than using coaxial cables. IPTV allows TV signals to be streamed to laptops, smartphones, tablets, and other devices wirelessly.
2. Setting up a basic IPTV system can be done using a Linux receiver, a computer with a TV tuner, and the VLC media player. The receiver obtains TV signals and streams them into the network, then VLC can be used to receive and view the streams on other devices on the network or locally on the same computer.
3. There are two methods for transmitting TV streams over the network: unicast, where each stream
Cohesive Networks Support Docs: VNS3 Configuration for CenturyLink Cloud
Use this VNS3 set up guide to get started in CenturyLink Cloud environments.
About VNS3:
VNS3 delivers cloud networking and NFV functionality for virtual and cloud environments. The VNS3 virtual network security appliance includes a router, switch, stateful firewall, VPN support (IPsec and SSL), and protocol redistributor, and extensible NFV optimized for all major cloud providers. VNS3 cloud networks are configured and managed through the VNS3 Manager web-based UI or resetful API.
VNS3 is available in: Amazon Web Services EC2, Amazon Web Services VPC, Microsoft Azure, CenturyLink Cloud, Google Compute Engine (GCE), Rackspace, IBM SoftLayer, ElasticHosts, Verizon Terremark vCloud Express, InterRoute, Abiquo, Openstack, Flexiant, Eucalyptus, Abiquo, HPE Helion, VMware (all formats), Citrix, Xen, KVM, and more.
VNS3 supports most IPsec data center solutions, including: Preferred Most models from Cisco Systems*, Juniper, Watchguard, Dell SONICWALL, Netgear, Fortinet, Barracuda Networks, Check Point*, Zyxel USA, McAfee Retail, Citrix Systems, Hewlett Packard, D-Link, WatchGuard, Palo Alto Networks, OpenSwan, pfSense, Vyatta, and any IPsec device that supports IKE1 or IKE2, AES256 or AES128 or 3DES, SHA1 or MD5, and most importantly NAT-Traversal standards.
Spy x tchnology
The document discusses the Sky X system, which replaces TCP with an optimized protocol called XTP for satellite network transmissions. It summarizes that Sky X uses gateways on both ends of the satellite link to split connections into TCP on the ends and XTP over the satellite. This architecture maintains reliability while improving throughput by 3-100x over standard TCP for satellite networks.
Cognex In-Sight - Network Settings.pdf
The document describes the Network Settings dialog in In-Sight Explorer, which is used to configure network settings for In-Sight vision systems. The dialog allows configuration of settings like the IP address, subnet mask, DHCP, link speed, industrial protocols, and more. It provides options that vary based on the vision system's firmware version.
Sky x technology
The document discusses how satellites can provide internet access over long distances but standard internet protocols like TCP are not optimized for satellite conditions. It introduces the Sky X system which replaces TCP over satellite links with a new protocol called Xpress Transport Protocol (XTP) that is optimized for satellite networks. The Sky X Gateway intercepts TCP connections and converts the data to XTP for transmission over the satellite. On the other side, it translates the data back to TCP. This allows for much better performance over satellites while being transparent to end users and compatible with existing internet infrastructure.
Sky x technology
Sky X products provide performance enhancement for data transmissions over satellite networks by replacing TCP with a custom protocol called Sky X that is optimized for satellite conditions like long latency and high bit error rates. The Sky X Gateway intercepts TCP connections and converts the data to the Sky X protocol for transmission over the satellite. This solution increases web and file transfer speeds by 3 to 100 times compared to TCP over satellite. The Sky X products transparently replace TCP and do not require any client or server modifications.
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Cohesive Networks Support Docs: Welcome to VNS3 3.5
Cohesive Networks Support Docs: Welcome to VNS3 3.5
1. Task In this assignment you are asked to provide named.pdf
1. Task In this assignment you are asked to provide named.pdf
Internet of Things - protocols review (MeetUp Wireless & Networks, Poznań 21....
Internet of Things - protocols review (MeetUp Wireless & Networks, Poznań 21....
Optimizing cloud resources for delivering iptv services through virtualization
Optimizing cloud resources for delivering iptv services through virtualization
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A NETWORK-BASED DAC OPTIMIZATION PROTOTYPE SOFTWARE 2 (1).pdf
Cohesive Networks Support Docs: VNS3 Configuration for CenturyLink Cloud
Cohesive Networks Support Docs: VNS3 Configuration for CenturyLink Cloud
Readme
- 1. Telex Anticensorship system --------------------------- Telex is a new approach to circumventing Internet censorship that is intended to help citizens of repressive governments access online services and information freely. It involves placing anticensorship technology into the Internet's core network infrastructure, through cooperation from large ISPs. Telex can convert innocuous-looking connections that pass through these ISPs into connections to a proxy server. Because of its position in the network, Telex has no IP address for censors to block. Telex consists of two parts: a Telex station at the friendly ISP, and a telex-client that runs on the user's system. We have created a proof-of-concept implementation, including a small demonstration "ISP" running the Telex station. For more information, see our website https://telex.cc telex-client -------------------------- The Telex client program accepts TCP connections from other software on the local machine and tunnels them to services offered by the Telex station. For our demonstration, we have configured the Telex station to provide HTTP proxy service. To build the telex-client from source, see the INSTALL file in the telex-client directory. Running telex-client -------------------------- After installing Telex, run the client binary from the telex-client directory (from a command prompt): LD_LIBRARY_PATH=./req/local/lib ./telex-client notblocked.telex.cc Or for Windows: telex-client notblocked.telex.cc To use Telex with your browser, change your browser's settings to use an HTTP(S) proxy of 127.0.0.1 port 8888. Our public demonstration is limited to a few websites: google.com telex.cc twitter.com youtube.com If you are a researcher requiring access to other sites, please contact us at telex@umich.edu. -------------------------- WARNING: This software is an experimental prototype intended for researchers. It does not provide strong security and is UNSAFE FOR REAL-WORLD USE. For details of current limitations of our proof-of-concept, please see telex-client/ISSUES.