Linux Administration

Linux Administration

What you'll learn from our extensive hands on training:

  • Setting Up the Environment (Installing both Ubuntu and CentOS)
  • The Linux Terminal In Depth
  • The Linux File System
  • Absolute vs. Relative Paths. Walking through the File System (pwd, cd, tree)
  • The LS Command In-Depth (ls)
  • Understanding File Timestamps: atime, mtime, ctime (stat, touch, date)
  • Viewing Files (cat, less, more, tail, head, watch)
  • Creating Files and Directories (touch, mkdir)
  • Copying, Moving, Renaming, and Deleting Files and Directories (cp, mv, rm, shred)
  • Working With Pipes in Linux (|, wc)
  • Command Redirection (>, >>, 2> &>, cut, tee)
  • Finding Files and Directories (locate, find, which)
  • Find and Exec
  • Searching for String Patterns (grep, strings)
  • Comparing Files (cmp, diff, sha256)
  • The VIM Editor In Depth
  • Compressing and Archiving Files and Directories (tar, gzip, bzip2)
  • Hard and Symbolic Links. The Inode Structure
  • User Accounts Management
  • Understanding passwd and shadow files
  • Understanding Linux Groups (groups, id)
  • Creating, Changing, and Removing User Accounts User Accounts (useradd, usermod, userdel)
  • Group Management (groupadd, groupdel, groupmod)
  • User Account Monitoring (whoami, who am i, who, id, w, uptime, last)
  • Linux File Permissions
  • Octal (Numeric) Notation of File Permissions
  • Changing File Permissions (chmod)
  • Changing File Ownership (chown, chgrp)
  • Understanding SUID (Set User ID), SGID (Set Group ID), and the Sticky Bit
  • Linux Process Management
  • Processes and The Linux Security Model
  • Listing Processes (ps, pstree, top, htop)
  • Signals and Killing Processes (kill, pkill, killall, pidof)
  • Foreground and Background Processes
  • Job Control (jobs, fg, bg)
  • Networking on Linux
  • Getting Information and configuring the Network Interfaces (ip, ifconfig, route)
  • Setting Up Static IP on Ubuntu (netplan)
  • Testing and Troubleshooting Network Connectivity
  • Using, Troubleshooting, and Securing SSH (sshd)
  • Copying Files Over the Network (scp)
  • Synchronizing Files and Directories using rsync
  • Using wget
  • Checking for Listening Ports (netstat, ss, lsof, telnet, nmap)
  • DPKG (Debian and Ubuntu Based Distros) and APT
  • Linux System Administration
  • Task Automation and Scheduling Using Cron (crontab) and Anacron
  • Mounting and Unmounting File Systems (df, mount, umount, fdisk, gparted)
  • Working With Device Files (dd)
  • Getting System Hardware Information (lwhw, lscpu, lsusb, lspci, dmidecode, hdparm)
  • Service Management (systemd and systemctl)
  • Bash Shell Scripting
  • Security: Information Gathering and Sniffing Traffic
  • Security: Netfilter/Iptables Firewall
  • Security: SSH PKI & SSH Hardening
  • DNS (Domain Name System)
  • Linux Performance Monitoring