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Премиум
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    Course Outline
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    Linux Distributions
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    Installing Ubuntu in a VM
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    Things to Do After Installing Ubuntu
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    Installing CentOS in a VM
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    Migrating to Linux
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    Terminals, Consoles, Shells and Commands
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    Linux Command Structure
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    Getting Help, Man Pages (man, type, help, apropos)
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    Mastering the Terminal: The TAB Key
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    Mastering the Terminal: Keyboard Shortcuts
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    Mastering the Terminal: the Bash History
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    Running Commands Without Leaving a Trace
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    Recording the Date and Time for Each line in History
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    root vs. non-Privileged Users. Getting root Access (sudo, su, passwd)
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    Intro to The Linux Files System
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    The Filesystem Hierarchy Standard ( FHS)
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    Absolute vs. Relative Paths. Walking through the File System (pwd, cd, tree)
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    The LS Command In Depth (ls)
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    Understanding File Timestamps: atime, mtime, ctime (stat, touch, date)
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    Sorting Files by Timestamp
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    File Types in Linux (ls -F, file)
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    Viewing Files - Part 1 (cat)
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    Viewing Files - Part 2 (less, more)
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    Viewing Files - Part 3 (tail, head, watch)
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    Creating Files and Directories (touch, mkdir)
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    Copying Files and Directories (cp)
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    Moving and Renaming Files and Directories (mv)
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    Removing Files and Directories (rm, shred)
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    Working With Pipes in Linux (|, wc)
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    Command Redirection (>, >>, 2> &>, cut, tee)
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    Finding Files and Directories - Part 1 (locate, which)
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    Finding Files and Directories - Part 2 (find)
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    Find and Exec
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    Searching for String Patterns in Text Files (grep)
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    Searching for Strings in Binary Files (strings)
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    Comparing Files (cmp, diff, sha256)
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    The Basics of VIM Text Editor
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    The VIM Editor In Depth - Part 1
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    The VIM Editor In Depth - Part 2
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    Compressing and Archiving Files and Directories (tar, gzip)
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    Hard Links and the Inode Structure
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    Working With Symlinks. Symlinks vs. Hard Links
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    Understanding /etc/passwd and /etc/shadow files
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    Understanding Linux Groups (groups, id)
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    Creating User Accounts (useradd)
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    Changing and Removing User Accounts (usermod, userdel)
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    Creating Admin Users
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    Group Management (groupadd, groupdel, groupmod)
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    User Account Monitoring (whoami, who am i, who, id, w, uptime, last)
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    Understanding File Permissions
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    Octal (Numeric) Notation of File Permissions
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    Changing File Permissions (chmod)
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    The Effect of Permissions on Directories
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    Combining Find and Chmod Commands Together
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    Changing File Ownership (chown, chgrp)
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    Understanding SUID (Set User ID)
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    Understanding SGID (Set Group ID)
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    Understanding the Sticky Bit
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    Umask
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    Understanding Files Attributes (lsattr, chattr)
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    Processes and The Linux Security Model
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    Listing Processes (ps, pstree)
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    Getting a Dynamic Real-Time View of the Running System (top, htop)
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    Signals and Killing Processes (kill, pkill, killall, pidof)
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    Foreground and Background Processes
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    Job Control (jobs, fg, bg
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    Getting Information about the Network Interfaces (ip, ifconfig
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    Configuring the Network On The Fly (ifconfig, ip, route)
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    Setting Up Static IP on Ubuntu (netplan)
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    Testing and Troubleshooting Network Connectivity
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    Using SSH
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    Troubleshooting SSH
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    Securing the OpenSSH Server (sshd)
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    Copying Files Over the Network (scp)
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    Synchronizing Files and Directories using rsync
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    Using rsync Over the Network
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    Using wget
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    Checking for Listening Ports (netstat, ss, lsof, telnet, nmap)
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    DPKG (Debian and Ubuntu Based Distros)
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    Intro to APT
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    Using APT (Advanced Package Tool)
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    Compiling Programs from Source Code vs. Package Manager
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    Compiling C Programs
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    Compiling Software From Source Code: Lab ProFTPD
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    Task Automation and Scheduling Using Cron (crontab)
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    Scheduling Tasks Using Anacron (anacron)
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    Mounting and Unmounting File Systems (df, mount, umount, fdisk, gparted)
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    Working With Device Files (dd)
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    Getting System Hardware Information (lwhw, lscpu, lsusb, lspci, dmidecode, hdparm)
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    Intro to systemd
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    Service Management (systemd and systemctl)
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    Bash Aliases
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    Intro to Bash Shell Scripting
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    The Bash Shebang and Comments
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    Running Scripts
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    Variables in Bash
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    Environment Variables
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    Getting User Input
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    Special Variables and Positional Arguments
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    If, Elif and Else Statements
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    Testing Conditions For Numbers
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    Multiple Conditions and Nested If Statements
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    Command Substitution
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    Comparing Strings in If Statements
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    Lab: Testing Network Connections
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    For Loops
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    Lab: Dropping a List of IP addresses Using a For Loop
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    While Loops
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    Case Statement
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    Functions in Bash
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    Variable Scope in Functions
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    Menus in Bash. The Select Statement
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    Lab: System Administration Script using Menus
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    Running a Linux Server in the Cloud
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    Securing SSH with Key Authentication
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    Project Overview
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    What is Docker? Why use it?
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    Installing Docker
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    The Docker Client
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    Pulling Images and Running Containers
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    Lab: Running a Web Server in a Docker Container
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    Listing Images and Containers
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    Removing Images and Containers
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    Getting Shell Access to a Container
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    Executing Commands in a Running Container
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    Getting Information about the Running Containers
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    Committing Container Changes into a New Image
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    Tagging and Pushing Custom Images to Docker Hub
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    Image Structure and Layers
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    Creating Custom Images using Dockerfile
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    Persistent Data: Volumes
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    Project Overview
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    Linux Security Checklist
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    Securing the OpenSSH Server (sshd)
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    Securing the Boot Loader (Grub)
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    Enforcing Password Policy
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    Locking or Disabling User Accounts
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    Giving Limited root Privileges (sudoers and visudo) - Part 1
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    Giving Limited root Privileges (sudoers and visudo) - Part 2
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    Setting Users’ Limits (Running a DoS Attack Without root Access)
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    Intro to Cracking Passwords
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    Cracking Linux Passwords Using John the Ripper
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    Checking Files Integrity with AIDE - Part 1
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    Checking Files Integrity with AIDE - Part 2
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    Scanning for Rootkits (rkhunter and chkrootkit)
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    Scanning for Viruses with ClamAV
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    Full Disk Encryption Using dm-crypt and LUKS
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    Unlocking LUKS Encrypted Drives With A Keyfile
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    Symmetric Encryption Using GnuPG
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    Steganography Explained
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    Steganography In Depth
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    Hide Secret Messages Through Steganography with Steghide
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    Scanning Networks with Nmap
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    Nmap Advanced
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    Project Overview: The Big Picture
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    Getting a Domain Name
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    Diving into the DNS Protocol and Installing a DNS Server (BIND9)
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    Setting Up the Authoritative BIND9 DNS Server
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    Installing a Web Server (Apache2)
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    Setting Up Virtual Hosting
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    Securing Apache with OpenSSL and Digital Certificates
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    Access Control by Source IP Address
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    The 'Files' Directive
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    The .htaccess File
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    HTTP Digest Authentication
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    The Options Directive and Indexing
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    HTTP Compression
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    SetHandler and Server Status
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    Installing PHP
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    Installing and Securing the MySql Server
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    Installing phpMyAdmin
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    Securing phpMyAdmin
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    Installing a Web Application (WordPress)
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    Securing WordPress
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    Intro to Ansible
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    Prerequisites
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    Ansible Inventory File
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    Ansible Ad-Hoc Commands: The Shell Module
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    Ansible Ad-Hoc Commands: The Script Module
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    Ansible Ad-Hoc Commands: The APT Module
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    Ansible Ad-Hoc Commands: The Service Module
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    Ansible Ad-Hoc Commands: The User Module
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    What is IPFS and How It Works
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    Installing IPFS on Linux
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    Running an IPFS Node on Linux
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    Pinning Objects
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    SSH Public Key Authentication Overview
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    Generating SSH Key Pair on Windows
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    Generating SSH Key Pair on Linux
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    Configuring SSH Public Key Authentication on Linux