gdisk on Linux CentOS 8

Learn to create GPT partition using gdisk command on Linux CentOS 8. gdisk is used for partitioning disk with GPT technique which is the modern technique or ...

fdisk on Linux CentOS 8

Learn to use fdisk command for creating MBR disk partition in Linux CentOS 8. Using fdisk for MBR partittion, we can create up to 4 primary partition. For mo...

Disk Partition (MBR & GPT) on Linux CentOS 8

Learn about Disk Partition in Linux CentOS 8. Disk Partition means diving that drive into many parts so that each parts can be accessed as if it was a separate disk.

Rsync (Remote Synchronization) on Linux CentOS 8

Learn about rsync command to syncronises the files and folders from one location to another, while minimizing data transfer in Linux CentOS 8. It is a most ...

Bash Scripting on Linux CentOS 8

Learn to create bash scripts in Linux CentOS 8. Bash is the command language interpreter that interprets the command lines and gives the desired output.

Alias (Command Shortcut) on Linux CentOS 8

Learn to create aliases in the Linux CentOS 8. Alias is the nickname or the shortcut for the commands to make them easier. Alias can be used to avoid typing the long commands. Using the alias, we can replace the long commands with shortcuts. It can save a lot of time and effort.

Job Scheduling (cronjob/crontab) on Linux CentOS 8

The crontab is used for running specific tasks on a regular interval. Linux crontab is similar to windows task schedules. Crontab is very useful for routine tasks like scheduling system scanning, daily backups, etc.

Package Management (Yum/DNF) on Linux CentOS 8

Learn to manage application packages in Linux CentOS 8. In RHEL 8 / CentOS 8, like in all modern linux distributions, software is organized in repositories,

Firewall on Linux CentOS 8

Learn about the Firewall Service in Linux CentOS 8. A firewall is a method for monitoring and filtering incoming and outgoing network traffic. It works by de...

Networking - Allow and Deny Specific IP address to connect on Linux CentOS 8

Learn to allow or deny the computer with specific IP address to connect to the Linux machine through SSH in Linux CentOS 8.

Networking - SSH Key Authentication - Public & Private Key on Linux CentOS 8

Learn to establish Public Key Authentication in Linux CentOS 8. In this lesson, you will learn to generate public and private shh key in Linux. Private key will be stored on the host machine and public key will be shared to the remote machines where you want to connect through ssh with public key.

Networking - Changing SSH Port number on Linux CentOS 8

Learn to change the default SSH (Secure Shell) Port number in Linux CentOS 8. The default port number of SSH is 22, but we can change that port number to make our network more secure.

Networking - SSH Remote Login on Linux CentOS 8

Learn to use Secure Shell (SSH) to remote login from one linux machine to another and transfer the files and directories securely in Linux CentOS 8. Secure Shell (SSH) is a cryptographic network protocol that allows secure data transfers between computers and networks

Networking - Static & Dynamic IP on Linux CentOS 8

Learn to manage dynamic and static IP addresses for networking and connecting to servers in Linux CentOS 8. In this lesson, we will be using nmcli command to create new connection (both static and dynamic)

Managing Permissions on Linux CentOS 8

Learn to manage the permissions for the files and directories in Linux CentOS 8. There are three types of permissions in Linux and they are "read", "write" and "execute".

Users and Groups on Linux CentOS 8

Learn to create Users and Groups in Linux CentOS 8. To create the users in Linux, we use the command useradd or adduser. To create the groups in Linux, we can use the command groupadd. We can allocate the groups to users using usermod command.

Softlink and Hardlink on Linux CentOS 8

Learn to create shorcut files (softlink/ symbolic link) and Hardlink in Linux CentOS 8. ln command is used to create both softlink and hardlink in Linux. softlink or the short cut file is dependent on the original file and it will not work if the original file is lost.

tar Compression in Linux CentOS 8

Learn how to compress the files and directories with tar command in Linux CentOS. We can combine the tar command along with gzip and bzip2 command in Linux. When we combine tar with gzip or bzip2

gzip and bzip2 on Linux CentOS 8

Learn how to compress the files or how to create zip files in Linux CentOS 8. File compression is a process of "packaging" a file (or files) to use less disk space. Compression software allows you to take many files and compress them into one file, which is smaller than the combined size of the originals.

pipe & redirection on Linux CentOS 8

Learn to use pipe and redirection in Linux CenOS. The Pipe "|" is a command in Linux that lets you use two or more commands such that output of one command serves as input to the next.