Ermin Kreponic's Course for CentOS and Red Hat Linux - RHCSA

Download, install, and configure VirtualBox on Windows 8 to set up virtualization environments for Red Hat Linux RHCSA training.

Create a Red Hat virtual machine part 1 as part of Ermin Kreponic's course for CentOS and Red Hat Linux RHCSA.

Install Red Hat Enterprise Linux in VirtualBox, select language and desktop environment, enable disk encryption, configure partitioning and network, and create the RandomGuy user during setup.

Set up and configure a Red Hat virtual machine after installation, including subscription registration, login, desktop setup, enabling repositories, network bridging, and VirtualBox guest additions, with post-install updates.

Learn how to dual boot Red Hat Linux and Windows 8, covering setup steps and compatibility considerations in this part 1 guide.

Demonstrate a working dual-boot setup of Red Hat and Windows, showing partitioning, boot device selection, and safely switching between drives, with a preview of the GNOME graphical interface.

Explore the Red Hat graphical user interface and file manager. Prep the virtual machine, then use the terminal for core tasks, including SELinux and firewall basics.

Explore the linux graphical user interface, using system tools to monitor processes, manage software via repositories, review logs, and inspect disks.

Master basic Linux command line navigation with cd, ls, and pwd, including root and home paths, tab completion, and moving through directories with . and ..

Navigate the file system with cd and shortcuts, return home, and jump to folders like downloads; use ls with -l, -h, -a, and --help, then -R for recursive viewing.

Learn to use man pages for command details, and compare find and locate with updatedb, noting case sensitivity and root access.

Learn how to manage file and folder ownership and permissions using chmod and chown. Set owner, group, and world read, write, and execute rights, including recursive changes.

Use the chown command to change a file's owner and group, with verbose and recursive options. The lecture shows updating test123 from RandomGuy:RandomGuy to root:root.

Learn to move, delete, and copy files using rm, cp, and mv on the Linux terminal, with practical guidance on recursive and force options and file recovery caution.

Learn how to use echo and cat for text handling, redirect output to files, and pipe results into grep with case-insensitive patterns, while mastering escape characters.

Explore yum, the default packet manager for RedHat and CentOS, and learn to install, search, update, and manage packages from official repositories via the command line.

Learn yum basics for CentOS and Red Hat Linux, including update, upgrade, search, install, reinstall, remove packages, view info, and filter results with grep across repositories.

Learn to use rpm to install, query, and erase packages on Red Hat-based systems, verify installations, and manage .rpm files from trusted sources.

Explore the Red Hat exam scope and hands-on skills. Learn shell usage, essential tools, file systems, local storage management, and security topics including firewall with iptables and SELinux configurations.

Explore globbing and wildcards in Linux, using asterisk and question mark to match files quickly for listing or removal, guiding prep for the RedHat Certified System Administrator exam.

Explore globbing in the Linux shell using wildcards, asterisks, question marks, ranges, and negation. Apply patterns to match beginnings, endings, and contained characters, with case sensitivity and script automation.

Learn how standard input, output, and error work and master redirecting and appending outputs to files or to /dev/null for Bash scripting.

Master input-output redirections in Linux by redirecting standard error to standard output, piping commands, and filtering outputs for log files and errors with ps, awk, and rev.

Redirect standard error in depth by using the 2> operator and file targets, while also showing how to redirect stdout and stderr to separate files for practical logging.

learn how to edit files in Linux terminals using vim, vi, and nano, mastering insert and command modes and basic vim commands for saving and quitting.

Master practical vim editing basics, including entering insert mode, saving and exiting with w and wq, and using delete, yank, and paste with dd, yy, and p.

Learn to search within Vim using / for forward and ? for backward patterns, jump to line ends with $, and join or undo changes as you edit.

Learn to search and replace in vim with range commands (1,$ or %), practice pattern matching and substitution syntax, and apply global and ignore-case options.

Master vim by combining commands with cat, grep, and egrep to extract lines and delete ranges or patterns using regular expressions, then undo and save.

Explore the Linux root file system architecture and navigate core directories such as bin, dev, etc, home, lib, usr, var, and proc, learning that everything is a file.

Hard links are different names for the same file. Soft links are path-based references; the lecture shows creating one with ln -s and how removing the original affects access.

Explore backups, recovery, and compression in Linux using tar. Learn to preserve permissions, manage destinations, and automate efficient backups.

Learn to uncompress tar.gz backups, extract them into a designated folder, and verify contents with tar -tvf before restoring stored files.

Master tar archive creation, compare uncompressed and compressed tarballs, and assess bzip2, gzip, and zip performance for backups, recovery, and storage efficiency.

Automate backups and routine tasks with cron and crontab by scheduling commands or bash scripts, and master the cron format and time fields from minutes to day of week.

Create a cron job to run a bash script at a chosen frequency, such as every minute. Tag files with date-based names and set proper permissions.

Learn how to edit and schedule cron jobs for a specific user, comment out lines for notes, and troubleshoot with logs using crontab, crond restart, and tail -f.

Master crontabs to schedule tasks using minutes and hours or shortcuts like @reboot and @monthly. Learn cron basics, including cron.allow, cron.deny, and a daemon checked every minute.

Explore how Linux stores user information in /etc/passwd and the password hash in /etc/shadow, including uid, gid, home directory, and the default shell, and review password expiration and lock options.

Create and manage users with useradd, set and expire passwords using passwd, and configure home directories, system accounts, and account expiration in Linux.

Learn how to create groups with groupadd, assign users to primary and secondary groups with usermod, and manage group membership, deletion with groupdel, and verification using id and /etc/group.

Learn to configure linux networking using the ip command instead of ifconfig. Discover how to view addresses, interfaces, and routes with ip addr show, ip link, and ip route show.

Learn to manage network configurations with network manager, exploring non-persistent and permanent settings, using ip addr commands, editing ifcfg scripts, and restarting NetworkManager to apply static ip and dns configurations.

Learn to manage networks with network manager, nmcli and nmtui, configure interfaces, edit connections, and verify connectivity using ping, nslookup, dig, and nmap; includes DHCP, DNS, gateway, and troubleshooting.