Linux is an open source operating system first created in 1991. It is maintained by a community of programmers and comes in various distributions like CentOS and Fedora. Some distributions are free while others like Red Hat Enterprise Server require payment but include support services. Linux is widely used as the operating system of choice in security operations centers due to its security, customizability, and powerful command line interface.
This course covers all aspects of RHCE certification and Linux administration skills. It will teach students to administer a Linux system through topics like user management, filesystems, backups, networking services and security tools. The course is taught by experienced system engineers and includes hands-on training on a live domain with public IP addresses.
The document provides an overview of a Linux Administration training program that covers topics such as Linux history, basics, file systems, users and permissions, processes, shells, text processing tools, and package management. It also lists various courses offered in areas like databases, networking, servers, and programming languages.
The servers work together to provide a distributed file system. The fileservers store and serve the actual file data. The database servers maintain metadata and authentication. Binary distribution servers provide client software updates. System control servers handle tasks like time synchronization.
Linux is an open-source operating system based on UNIX with a modular kernel. It uses processes, memory management and file systems similar to UNIX. The Linux kernel supports features like symmetric multiprocessing, virtual memory and loading of kernel modules. Popular Linux distributions package and distribute the Linux system along with utilities and applications.
The document discusses the Sun Network File System (NFS) which provides transparent remote access to filesystems. It describes key aspects of NFS including the Virtual File System interface, access control, the NFS server interface, the mount service, and path name translation. NFS uses remote procedure calling between clients and servers and was designed for machine and operating system independence as well as crash recovery and transparent access.
The Network File System (NFS) Version 4 is a distributed file system similar to previous versions of NFS in its straightforward design, simplified error recovery, and independence of transport protocols and operating systems for file access in a heterogeneous network.
NFS, was developed by Sun Microsystems to provide distributed transparent file access in a heterogeneous network. It achieves this by being relatively simple in design and not relying too heavily on any particular file system model.
This presentation is based on the paper of “The NFS Version 4 Protocol” written by Brian Pawlowski, Spencer Shepler, Carl Beame, Brent Callaghan, Michael Eisler, David Noveck, David Robinson and Robert Thurlow.
Here are the steps to complete the assignment:
1. Logged in as guest user
2. Present working directory is /home/guest
3. Wrote the structure of root directory /
4. A few commands in /bin are ls, cp, mv. A few in /sbin are ifconfig, route
5. Guest directory is /home/guest
6. Permissions of /home/guest are drwxr-xr-x
7. Created directory test in /home/guest
8. Copied /etc/resolv.conf to /home/guest/test
9. Renamed /home/guest/test to /home/guest/testing
10. Deleted
NanoCdac Providing linux administration training in Hyderabad. Training includes Linux Internals and Device Drivers,Real -Time Operating System (RTLinux) Programming,Linux System programming,Linux Device Drivers Programming.Our aim is to quality training to the students and professionals Call Us-040 -23754144,+91- 9640648777
This course covers all aspects of RHCE certification and Linux administration skills. It will teach students to administer a Linux system through topics like user management, filesystems, backups, networking services and security tools. The course is taught by experienced system engineers and includes hands-on training on a live domain with public IP addresses.
The document provides an overview of a Linux Administration training program that covers topics such as Linux history, basics, file systems, users and permissions, processes, shells, text processing tools, and package management. It also lists various courses offered in areas like databases, networking, servers, and programming languages.
The servers work together to provide a distributed file system. The fileservers store and serve the actual file data. The database servers maintain metadata and authentication. Binary distribution servers provide client software updates. System control servers handle tasks like time synchronization.
Linux is an open-source operating system based on UNIX with a modular kernel. It uses processes, memory management and file systems similar to UNIX. The Linux kernel supports features like symmetric multiprocessing, virtual memory and loading of kernel modules. Popular Linux distributions package and distribute the Linux system along with utilities and applications.
The document discusses the Sun Network File System (NFS) which provides transparent remote access to filesystems. It describes key aspects of NFS including the Virtual File System interface, access control, the NFS server interface, the mount service, and path name translation. NFS uses remote procedure calling between clients and servers and was designed for machine and operating system independence as well as crash recovery and transparent access.
The Network File System (NFS) Version 4 is a distributed file system similar to previous versions of NFS in its straightforward design, simplified error recovery, and independence of transport protocols and operating systems for file access in a heterogeneous network.
NFS, was developed by Sun Microsystems to provide distributed transparent file access in a heterogeneous network. It achieves this by being relatively simple in design and not relying too heavily on any particular file system model.
This presentation is based on the paper of “The NFS Version 4 Protocol” written by Brian Pawlowski, Spencer Shepler, Carl Beame, Brent Callaghan, Michael Eisler, David Noveck, David Robinson and Robert Thurlow.
Here are the steps to complete the assignment:
1. Logged in as guest user
2. Present working directory is /home/guest
3. Wrote the structure of root directory /
4. A few commands in /bin are ls, cp, mv. A few in /sbin are ifconfig, route
5. Guest directory is /home/guest
6. Permissions of /home/guest are drwxr-xr-x
7. Created directory test in /home/guest
8. Copied /etc/resolv.conf to /home/guest/test
9. Renamed /home/guest/test to /home/guest/testing
10. Deleted
NanoCdac Providing linux administration training in Hyderabad. Training includes Linux Internals and Device Drivers,Real -Time Operating System (RTLinux) Programming,Linux System programming,Linux Device Drivers Programming.Our aim is to quality training to the students and professionals Call Us-040 -23754144,+91- 9640648777
This document provides an overview of network management with Linux. It discusses key topics such as:
- Why Linux is significant, including its growing popularity, power, ability to run on multiple hardware platforms, and speed and stability.
- The basic Linux system structure including user commands, the shell for interpreting commands, and the kernel for managing hardware resources.
- Common shells like Bash used for calling commands and programming.
- Basic Linux file system organization with directories, pathnames, and special filenames.
- File permissions including read, write, and execute permissions for owners, groups and others.
- Virtual file systems and how they provide a consistent view of data storage.
- User management with tools like useradd
The document provides information about Linux OS and shell programming. It discusses the history and evolution of Linux from being a student project to a robust OS. Key people involved in its development like Richard Stallman, Linus Torvalds, and Andy Tanenbaum are mentioned. The architecture of Linux including kernel, system libraries, system utilities etc. is explained. Important commands, file system structure, file permissions and text editors in Linux are also summarized.
This document provides an overview of the Linux file system including:
1. It defines the main directories and contents according to the Filesystem Hierarchy Standard (FHS) with the root directory being "/" and possible multiple partitions and filesystems.
2. It describes the different types of files like ordinary files, directories, and special files as well as file permissions for reading, writing, and executing files and directories.
3. It explains how to change file permissions using the chmod command and navigate the file system using commands like pwd, cd, and ls including examples of using options, wildcards and navigation.
SUN Network File system - Design, Implementation and Experience aniadkar
Overview of SUN Network File system and its design, architecture and implementation along with changes in NFS v3 and NFS v4
Presented by – Aniruddh Adkar
CSE 710 Parallel and Distributed File Systems ( Spring 2016 )
SUNY, University at Buffalo
The document provides an introduction to Linux, including that it is an open-source operating system kernel created by Linus Torvalds. It discusses popular Linux distributions like Ubuntu and Red Hat Enterprise Linux. It also describes the Linux shell/terminal as the command line interface to interact with the operating system. Finally, it gives examples of common Linux commands for file management, system information, and archiving/compressing files.
NFS allows remote access to files on a server from client machines. It uses stateless servers so server disruptions don't affect clients, and clients can continue accessing files after a server reboot. The client parses file paths and looks up components individually to accommodate different file naming conventions. NFS adopted UNIX file semantics and operations like open, read, write, and close, along with basic file types and permissions.
NFS (Network File System) was developed by SUN Microsystems in 1984 to allow users to access and share files located on remote computers over a network. It builds on the ONC RPC system and uses a stateless protocol to store files on a network in a way that is easy to recover from failures. NFS is commonly used with UNIX systems but also supports other platforms. It has gone through several versions to support larger files, security improvements, and a stateful protocol in later versions. NFS allows applications on client computers to access and manipulate files on a server computer in a way that is transparent to the user.
The document provides an overview of the history and components of the Linux operating system. It discusses how Linux originated as a small kernel developed by Linus Torvalds in 1991 and has since evolved through collaborations. The core components of Linux include the kernel, system libraries, system utilities, and kernel modules. It also describes key aspects of Linux such as process management, scheduling, memory management, and file systems.
Linux is a free, open-source operating system based on UNIX with a modular kernel. It uses processes, threads, virtual memory, and files systems. Device drivers allow access to hardware via the block I/O system. Interprocess communication includes signals, pipes, shared memory, and semaphores. Security features authentication via PAM and access controls permissions via user and group IDs.
This document provides an overview of Linux fundamentals, including:
- The kernel acts as an interface between hardware and software, handling processes and resource allocation.
- The userland includes standard libraries that allow programs to communicate with the kernel.
- Files are organized in a hierarchy with directories like /home for user files, /etc for configurations, and /var for variable files.
- Commands like ls, grep, and find allow viewing and searching files, while pipes, redirection, and compression utilities manage file input/output.
Red Hat Enterprise Linux and NFS by syedmshaafSyed Shaaf
Red Hat provides mission-critical software and services using an open source model. This includes operating systems, virtualization, storage, and middleware. Red Hat develops products using a participate, integrate, and stabilize process involving upstream open source projects and communities. Red Hat Enterprise Linux works well with NFS for storage, with NFS version 4 improving performance and NFS version 4.1 introducing parallel access for improved scalability.
The document provides information about the Linux operating system. It discusses:
1. Linux is comprised of the kernel, file system, and shell. The kernel loads first and manages memory, processes, and disks. The file system organizes data and the shell interprets commands.
2. Linux distributions like Red Hat, Debian, and Ubuntu use the same Linux kernel but have different packaged software.
3. Linux is multi-user, network-capable, portable, flexible, and has thousands of free software applications available. It uses virtual memory and is case sensitive.
Network File System (NFS) allows users to access and share files located on remote computers. It builds on ONC RPC and has evolved through several versions. NFS uses a client-server model where the client makes RPC requests to access files on the NFS server's file system. This allows for flexible sharing of resources but introduces some security and performance disadvantages compared to a local file system. Overall NFS is a widely used distributed file system protocol.
Network File System (NFS) is a distributed file system protocol that allows users to access and share files located on remote computers as if they were local. NFS runs on top of RPC and supports operations like file reads, writes, lookups and locking. It uses a stateless client-server model where clients make requests to NFS servers, which are responsible for file storage and operations. NFS provides mechanisms for file sharing, locking, caching and replication to enable reliable access and performance across a network.
The document provides an overview of the history and design of the Linux operating system in 3 paragraphs:
Linux was first developed in 1991 by Linus Torvalds as a small kernel for compatibility with UNIX. It has since grown through collaboration over the internet to run on various hardware platforms while remaining free and open source. Early versions only supported 386 processors and basic functionality, while later versions added support for new hardware, file systems, and networking.
The core components of Linux include the kernel, system libraries, and system utilities. The kernel provides core system functions and resource management. Libraries and utilities are developed separately but work together to provide a full UNIX-compatible system. Device drivers, file systems, and network protocols can
The document discusses the Network File System (NFS) protocol. NFS allows users to access and share files located on remote computers as if they were local. It operates using three main layers - the RPC layer for communication, the XDR layer for machine-independent data representation, and the top layer consisting of the mount and NFS protocols. NFS version 4 added features like strong security, compound operations, and internationalization support.
This document provides an overview of Linux including:
- Different pronunciations of Linux and the origins of each pronunciation.
- A definition of Linux as a generic term for Unix-like operating systems with graphical user interfaces.
- Why Linux is significant as a powerful, free, and customizable operating system that runs on multiple hardware platforms.
- An introduction to key Linux concepts like multi-user systems, multiprocessing, multitasking and open source software.
- Examples of common Linux commands for file handling, text processing, and system administration.
LInux: Basics & File System:The Unix operating system was conceived and implemented in 1969 at AT&T's Bell Laboratories in the United States by Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe Ossanna. First released in 1971, Unix was written entirely in assembly language, as was common practice at the time. Later, in a key pioneering approach in 1973, it was rewritten in the C programming language by Dennis Ritchie (with exceptions to the kernel and I/O). The availability of a high-level language implementation of Unix made its porting to different computer platforms easier.
This document provides guidance for Linux administration practicals, including:
- An index of 17 practical topics ranging from basic Linux commands to configuring mail services.
- Detailed instructions for Practical 1 on basic commands like cat, mkdir, cp, and editors like vi. It provides an example directory and file structure to create.
- An overview of Practical 2 on installing Red Hat Linux, including selecting installation options and partitioning the hard drive to make space.
- Descriptions of changing file permissions using both binary and symbolic modes with chmod, and decoding permission codes from the ls command.
- An explanation of the different modes in the vi editor like command, insert, and ex modes,
linux system and network administrationshaile468688
This document provides an overview of Linux system and network administration. It discusses Linux security concepts like risk assessment and encryption. It describes Linux resource monitoring and management tools. It also outlines Linux user administration and how Linux can support a Windows network through Samba. The document defines Linux, Unix, and Windows operating systems and compares their architectures. It examines Linux file systems, storage management, and network concepts.
Here is a suggested network design with key services for the given scenario:
Firewall: Cisco ASA or Fortinet FortiGate
- Provides network security and controls inbound/outbound traffic
- Stateful packet inspection, intrusion prevention, VPN support
Central Authentication Server: Windows Active Directory
- Manages user authentication, authorization and accounts centrally
- Integrates with other servers and services for single sign-on
Telephony Server: Asterisk or FreePBX
- Hosts VoIP phone system functionality
- Provides features like call routing, conferencing, voicemail
File Server: Windows Server
- Shares files and storage on the network
- Provides features like permissions, backup, redundancy
This document provides an overview of network management with Linux. It discusses key topics such as:
- Why Linux is significant, including its growing popularity, power, ability to run on multiple hardware platforms, and speed and stability.
- The basic Linux system structure including user commands, the shell for interpreting commands, and the kernel for managing hardware resources.
- Common shells like Bash used for calling commands and programming.
- Basic Linux file system organization with directories, pathnames, and special filenames.
- File permissions including read, write, and execute permissions for owners, groups and others.
- Virtual file systems and how they provide a consistent view of data storage.
- User management with tools like useradd
The document provides information about Linux OS and shell programming. It discusses the history and evolution of Linux from being a student project to a robust OS. Key people involved in its development like Richard Stallman, Linus Torvalds, and Andy Tanenbaum are mentioned. The architecture of Linux including kernel, system libraries, system utilities etc. is explained. Important commands, file system structure, file permissions and text editors in Linux are also summarized.
This document provides an overview of the Linux file system including:
1. It defines the main directories and contents according to the Filesystem Hierarchy Standard (FHS) with the root directory being "/" and possible multiple partitions and filesystems.
2. It describes the different types of files like ordinary files, directories, and special files as well as file permissions for reading, writing, and executing files and directories.
3. It explains how to change file permissions using the chmod command and navigate the file system using commands like pwd, cd, and ls including examples of using options, wildcards and navigation.
SUN Network File system - Design, Implementation and Experience aniadkar
Overview of SUN Network File system and its design, architecture and implementation along with changes in NFS v3 and NFS v4
Presented by – Aniruddh Adkar
CSE 710 Parallel and Distributed File Systems ( Spring 2016 )
SUNY, University at Buffalo
The document provides an introduction to Linux, including that it is an open-source operating system kernel created by Linus Torvalds. It discusses popular Linux distributions like Ubuntu and Red Hat Enterprise Linux. It also describes the Linux shell/terminal as the command line interface to interact with the operating system. Finally, it gives examples of common Linux commands for file management, system information, and archiving/compressing files.
NFS allows remote access to files on a server from client machines. It uses stateless servers so server disruptions don't affect clients, and clients can continue accessing files after a server reboot. The client parses file paths and looks up components individually to accommodate different file naming conventions. NFS adopted UNIX file semantics and operations like open, read, write, and close, along with basic file types and permissions.
NFS (Network File System) was developed by SUN Microsystems in 1984 to allow users to access and share files located on remote computers over a network. It builds on the ONC RPC system and uses a stateless protocol to store files on a network in a way that is easy to recover from failures. NFS is commonly used with UNIX systems but also supports other platforms. It has gone through several versions to support larger files, security improvements, and a stateful protocol in later versions. NFS allows applications on client computers to access and manipulate files on a server computer in a way that is transparent to the user.
The document provides an overview of the history and components of the Linux operating system. It discusses how Linux originated as a small kernel developed by Linus Torvalds in 1991 and has since evolved through collaborations. The core components of Linux include the kernel, system libraries, system utilities, and kernel modules. It also describes key aspects of Linux such as process management, scheduling, memory management, and file systems.
Linux is a free, open-source operating system based on UNIX with a modular kernel. It uses processes, threads, virtual memory, and files systems. Device drivers allow access to hardware via the block I/O system. Interprocess communication includes signals, pipes, shared memory, and semaphores. Security features authentication via PAM and access controls permissions via user and group IDs.
This document provides an overview of Linux fundamentals, including:
- The kernel acts as an interface between hardware and software, handling processes and resource allocation.
- The userland includes standard libraries that allow programs to communicate with the kernel.
- Files are organized in a hierarchy with directories like /home for user files, /etc for configurations, and /var for variable files.
- Commands like ls, grep, and find allow viewing and searching files, while pipes, redirection, and compression utilities manage file input/output.
Red Hat Enterprise Linux and NFS by syedmshaafSyed Shaaf
Red Hat provides mission-critical software and services using an open source model. This includes operating systems, virtualization, storage, and middleware. Red Hat develops products using a participate, integrate, and stabilize process involving upstream open source projects and communities. Red Hat Enterprise Linux works well with NFS for storage, with NFS version 4 improving performance and NFS version 4.1 introducing parallel access for improved scalability.
The document provides information about the Linux operating system. It discusses:
1. Linux is comprised of the kernel, file system, and shell. The kernel loads first and manages memory, processes, and disks. The file system organizes data and the shell interprets commands.
2. Linux distributions like Red Hat, Debian, and Ubuntu use the same Linux kernel but have different packaged software.
3. Linux is multi-user, network-capable, portable, flexible, and has thousands of free software applications available. It uses virtual memory and is case sensitive.
Network File System (NFS) allows users to access and share files located on remote computers. It builds on ONC RPC and has evolved through several versions. NFS uses a client-server model where the client makes RPC requests to access files on the NFS server's file system. This allows for flexible sharing of resources but introduces some security and performance disadvantages compared to a local file system. Overall NFS is a widely used distributed file system protocol.
Network File System (NFS) is a distributed file system protocol that allows users to access and share files located on remote computers as if they were local. NFS runs on top of RPC and supports operations like file reads, writes, lookups and locking. It uses a stateless client-server model where clients make requests to NFS servers, which are responsible for file storage and operations. NFS provides mechanisms for file sharing, locking, caching and replication to enable reliable access and performance across a network.
The document provides an overview of the history and design of the Linux operating system in 3 paragraphs:
Linux was first developed in 1991 by Linus Torvalds as a small kernel for compatibility with UNIX. It has since grown through collaboration over the internet to run on various hardware platforms while remaining free and open source. Early versions only supported 386 processors and basic functionality, while later versions added support for new hardware, file systems, and networking.
The core components of Linux include the kernel, system libraries, and system utilities. The kernel provides core system functions and resource management. Libraries and utilities are developed separately but work together to provide a full UNIX-compatible system. Device drivers, file systems, and network protocols can
The document discusses the Network File System (NFS) protocol. NFS allows users to access and share files located on remote computers as if they were local. It operates using three main layers - the RPC layer for communication, the XDR layer for machine-independent data representation, and the top layer consisting of the mount and NFS protocols. NFS version 4 added features like strong security, compound operations, and internationalization support.
This document provides an overview of Linux including:
- Different pronunciations of Linux and the origins of each pronunciation.
- A definition of Linux as a generic term for Unix-like operating systems with graphical user interfaces.
- Why Linux is significant as a powerful, free, and customizable operating system that runs on multiple hardware platforms.
- An introduction to key Linux concepts like multi-user systems, multiprocessing, multitasking and open source software.
- Examples of common Linux commands for file handling, text processing, and system administration.
LInux: Basics & File System:The Unix operating system was conceived and implemented in 1969 at AT&T's Bell Laboratories in the United States by Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe Ossanna. First released in 1971, Unix was written entirely in assembly language, as was common practice at the time. Later, in a key pioneering approach in 1973, it was rewritten in the C programming language by Dennis Ritchie (with exceptions to the kernel and I/O). The availability of a high-level language implementation of Unix made its porting to different computer platforms easier.
This document provides guidance for Linux administration practicals, including:
- An index of 17 practical topics ranging from basic Linux commands to configuring mail services.
- Detailed instructions for Practical 1 on basic commands like cat, mkdir, cp, and editors like vi. It provides an example directory and file structure to create.
- An overview of Practical 2 on installing Red Hat Linux, including selecting installation options and partitioning the hard drive to make space.
- Descriptions of changing file permissions using both binary and symbolic modes with chmod, and decoding permission codes from the ls command.
- An explanation of the different modes in the vi editor like command, insert, and ex modes,
linux system and network administrationshaile468688
This document provides an overview of Linux system and network administration. It discusses Linux security concepts like risk assessment and encryption. It describes Linux resource monitoring and management tools. It also outlines Linux user administration and how Linux can support a Windows network through Samba. The document defines Linux, Unix, and Windows operating systems and compares their architectures. It examines Linux file systems, storage management, and network concepts.
Here is a suggested network design with key services for the given scenario:
Firewall: Cisco ASA or Fortinet FortiGate
- Provides network security and controls inbound/outbound traffic
- Stateful packet inspection, intrusion prevention, VPN support
Central Authentication Server: Windows Active Directory
- Manages user authentication, authorization and accounts centrally
- Integrates with other servers and services for single sign-on
Telephony Server: Asterisk or FreePBX
- Hosts VoIP phone system functionality
- Provides features like call routing, conferencing, voicemail
File Server: Windows Server
- Shares files and storage on the network
- Provides features like permissions, backup, redundancy
This document provides an introduction to Linux, including:
- What Linux is, its basic components like the kernel and shell, and features such as being open-source and portable.
- The architecture of Linux including the hardware, kernel, shell, and utilities layers.
- Popular Linux distributions like Debian, Red Hat Enterprise Linux, and SUSE Linux Enterprise.
- A comparison between Linux and Windows in areas like licensing, updating processes, and software availability.
- Important Linux commands for navigation, file management, networking, and package management.
- An overview of the Linux file system structure and common directories like /bin, /etc, and /var.
Linux celebrated its 25th birthday on August 25, 2015. The document discusses the history and basics of Linux, including:
- Linux was created in 1991 by Linus Torvalds as an open-source kernel based on UNIX.
- It discusses Linux security models and permissions. Files have owners, groups, and permissions to control access.
- It provides an overview of basic Linux commands for starting the X server, changing passwords, editing text files, running commands and getting help.
LAMP technology uses Linux as the operating system, Apache as the web server, MySQL as the database management system, and PHP as the server-side scripting language. Some advantages of LAMP include easy coding with PHP and MySQL, low-cost hosting, and the ability to develop applications locally. To install LAMP, one would download and extract the latest version of XAMPP for Linux and start the Apache and MySQL servers.
This document provides an overview of security tools and concepts for Linux systems. It discusses Linux file structure, basic commands, vulnerabilities, compiling programs, security tools like Nmap, Nessus, SARA, iptables firewall, password cracking with John the Ripper, intrusion detection with Snort, network monitoring tools like tcpdump, and security hardening techniques like chrooting. The document aims to familiarize the reader with fundamental Linux security topics.
PARALLEL FILE SYSTEM FOR LINUX CLUSTERSRaheemUnnisa1
The document discusses parallel file systems for Linux clusters. It describes how parallel file systems distribute data across multiple storage servers to enable high-performance access through simultaneous input/output operations. This allows each process on every node in a Linux cluster to perform I/O to and from a common storage target. Examples of parallel file systems for Linux clusters include PVFS, IBM GPFS, and Lustre. Parallel file systems enhance the performance of Linux clusters by optimizing the use of storage resources.
The document provides an overview of LAMP technology, which refers to a group of open-source software used to build dynamic web sites and applications. It describes the core components of LAMP - Linux as the operating system, Apache as the web server, MySQL as the database management system, and PHP as the programming language. It then discusses each component in more detail and provides examples of commands and basic usage.
The document discusses various topics related to open source software and the Linux operating system. It begins by defining open source software and listing some examples of open source programs. It then discusses the history and development of Linux, from its origins in 1991 to its current usage. The rest of the document covers Linux distributions, features, kernel functions, process management, input/output handling, memory management, and advantages of the Linux operating system.
This chapter discusses the history and varieties of UNIX and Linux operating systems. It describes how to install Linux, configure users and permissions, and interconnect Linux with other network operating systems using tools like Samba, WINE, VMware and Telnet. The chapter also provides examples of basic Linux commands and how to set up a Linux server with the required hardware specifications.
The LAMP stack is an open-source software platform for building dynamic web sites and web applications. It stands for Linux, Apache HTTP Server, MySQL database, and PHP programming language. Linux provides the operating system foundation. Apache is the web server software. MySQL is the database management system. PHP is the programming language most commonly used to develop dynamic web applications that interact with the database. The LAMP stack is highly flexible, scalable, and free to use, making it a popular choice for hosting web applications and sites.
The document presents an overview of the software architecture of the Linux operating system. It discusses the need to study software architecture to support design decisions, enhance communication, and understand system abstractions. The Linux system structure contains five major subsystems: the process scheduler, memory manager, virtual file system, network interface, and interprocess communication. Each subsystem is inspected in more detail, including its functions, dependencies, and role within the overall Linux architecture. The presentation concludes by discussing future work refining the conceptual and concrete architecture models of Linux.
This document discusses Squid Proxy in Red Hat Enterprise Linux 6 (RHEL 6). It provides instructions on installing RHEL 6, including selecting packages during installation such as PHP, MySQL, and Eclipse IDE. It then discusses proxy servers and their uses such as filtering content, caching to improve performance, and load balancing between multiple web servers. Common proxy types include forward, reverse, and open proxies.
This document provides information about a course on Shell Programming and Scripting Languages. It discusses:
- The course objectives which are to explain UNIX commands, implement shell scripts using Bash, and learn Python scripting.
- The course outcomes which are to understand UNIX commands and utilities, write and execute shell scripts, handle files and processes, and learn Python programming and web application design.
- Prerequisites of DOS commands and C programming.
- An overview of UNIX including the file system, vi editor, and security permissions.
How to Audit Linux - Gene Kartavtsev, ISACA MNGene Kartavtsev
The presentation focuses on main differences between Linux and Windows Operation Systems. It explains basic system architecture, introduces the most important commands
for IT audit and gives overall prospective of Linux systems audit. It is also an opportunity to interact with an auditor, who has a real-world experience as systems engineer and has a
prospective of an audit process from both sides.
Speakers: Gene Kartavtsev, CISA, PCIP, ISA
Study notes for CompTIA Certified Advanced Security Practitioner (ver2)David Sweigert
The document provides information on various topics for the CompTIA CASP exam, including:
1. Virtual Trusted Platform Modules (vTPM) which provide secure storage and cryptographic functions to virtual machines.
2. SELinux which added Mandatory Access Control to the Linux kernel to control access between subjects and objects.
3. Differences between common storage protocols like iSCSI, Fibre Channel over Ethernet, and NFS vs CIFS.
It also covers topics like dynamic disk pools vs RAID, Microsoft Group Policies, and differences between network attached storage and storage area networks.
The document provides information about LAMP technology and its components - Linux, Apache HTTP Server, MySQL, and PHP. It discusses the advantages of using LAMP including easy coding with PHP/MySQL and low cost hosting. It also provides installation instructions and examples of basic commands for Linux, Apache, MySQL, and PHP.
The document provides information about LAMP technology including its components (Linux, Apache, MySQL, PHP), advantages, and installation process. It then discusses Linux operating system basics such as commands, directory structure, and editors. The document also covers Apache web server configuration, running, and modules. It describes MySQL database including basic and advanced queries, procedures, and functions.
Network and System Administration Power Pointkemal678348
System and network administration involves managing systems, hardware, software, user accounts, security, and more. The key tasks of a system administrator include user management, hardware/software management, monitoring systems, backups, troubleshooting, and ensuring smooth operations. They must also address security through practices like access controls, authentication, and maintaining privacy and integrity. Managing these complex systems requires skills in areas like networking, operating systems, scripting, and problem-solving.
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELgerogepatton
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
International Conference on NLP, Artificial Intelligence, Machine Learning an...gerogepatton
International Conference on NLP, Artificial Intelligence, Machine Learning and Applications (NLAIM 2024) offers a premier global platform for exchanging insights and findings in the theory, methodology, and applications of NLP, Artificial Intelligence, Machine Learning, and their applications. The conference seeks substantial contributions across all key domains of NLP, Artificial Intelligence, Machine Learning, and their practical applications, aiming to foster both theoretical advancements and real-world implementations. With a focus on facilitating collaboration between researchers and practitioners from academia and industry, the conference serves as a nexus for sharing the latest developments in the field.
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
Optimizing Gradle Builds - Gradle DPE Tour Berlin 2024Sinan KOZAK
Sinan from the Delivery Hero mobile infrastructure engineering team shares a deep dive into performance acceleration with Gradle build cache optimizations. Sinan shares their journey into solving complex build-cache problems that affect Gradle builds. By understanding the challenges and solutions found in our journey, we aim to demonstrate the possibilities for faster builds. The case study reveals how overlapping outputs and cache misconfigurations led to significant increases in build times, especially as the project scaled up with numerous modules using Paparazzi tests. The journey from diagnosing to defeating cache issues offers invaluable lessons on maintaining cache integrity without sacrificing functionality.
Comparative analysis between traditional aquaponics and reconstructed aquapon...bijceesjournal
The aquaponic system of planting is a method that does not require soil usage. It is a method that only needs water, fish, lava rocks (a substitute for soil), and plants. Aquaponic systems are sustainable and environmentally friendly. Its use not only helps to plant in small spaces but also helps reduce artificial chemical use and minimizes excess water use, as aquaponics consumes 90% less water than soil-based gardening. The study applied a descriptive and experimental design to assess and compare conventional and reconstructed aquaponic methods for reproducing tomatoes. The researchers created an observation checklist to determine the significant factors of the study. The study aims to determine the significant difference between traditional aquaponics and reconstructed aquaponics systems propagating tomatoes in terms of height, weight, girth, and number of fruits. The reconstructed aquaponics system’s higher growth yield results in a much more nourished crop than the traditional aquaponics system. It is superior in its number of fruits, height, weight, and girth measurement. Moreover, the reconstructed aquaponics system is proven to eliminate all the hindrances present in the traditional aquaponics system, which are overcrowding of fish, algae growth, pest problems, contaminated water, and dead fish.