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OpenSSL create Client Certificate & Server Certificate with Example

Steps to create client certificate and server certificate using your own Certificate Authority chain (CA bundle) and configure Apache with SSL (HTTPS)

Create SAN Certificate | OpenSSL generate CSR with SAN command line

Create SAN certificate using openssl generate csr with san command line. Openssl sign CSR with Subject Alternative Name. openssl add san to existing certificate …

10 easy steps to setup High Availability Cluster CentOS 8

Step-by-Step Guide to setup Linux High Availability Cluster in CentOS 8 using system_id_source uname. Configure pacemaker, corosync and linux HA cluster.

Multiple one liners SFTP commands example to copy file from remote server to local machine windows and vice versa. sftp get command examples, usage syntax

Automate SFTP using shell script with password in Linux/Unix

Steps to automate SFTP using shell script with password and expect with examples SFTP command example in Unix shell script with passwordless authorized_keys

Linux sftp restrict user to specific directory | setup sftp chroot jail

how to configure sftp server in linux step by step to sftp restrict user to specific directory in Linux Setup sftp chroot jail with authorized_keys passwordless …

Linux lvm snapshot backup and restore tutorial RHEL/CentOS 7/8

Step by step guide linux lvm snapshot backup and restore with examples RHEL/CentOS 7/8. Create, merge, extend, remove LVM snapshot. backup root file system

6 easy steps to setup offline two factor authentication in Linux

Configure Google Authenticator with Offline two factor authentication to secure ssh, sudo and su using PAM module pam_google_authenticator.so in RHEL/CentOS 7/8 …

5+ practical examples to learn sticky bit in Linux

What is Unix or Linux Sticky Bit special permission. How to apply sticky bit for directories and files. What is the difference between small 't' and capital "T" …

Tutorial: Beginners guide on Linux Memory Management

Understand various terminologies with linux memory management, dirty page, swapping, inactive, active memory, Translation Lookaside Buffers (TLB), page cache

How to PROPERLY Open Port in RHEL/CentOS Linux

Examples to open port in linux RHEL/CentOS 7/8 Use netstat to check port status. centos open firewall port. how to open and close ports. check if port is open

5 easy steps to resize root LVM partition in RHEL/CentOS 7/8 Linux

Steps to resize root LVM partition. Increase or decrease root logical volume partition size with examples in RHEL/CentOS 7/8 Linux. Extend or shrink root LVM

Solved: Error populating transaction, retrying RHEL/CentOS 7/8

How to fix starting package installation process error populating transaction, anaconda is retrying faced during RHEL/CentOS 7/8 installation in Linux

Bash compare strings: equality, order, empty checks, and pattern match

Bash string comparison with == and !=, bash if string equals patterns, compare strings in bash using [[ ]] and [ ], ASCII order, empty (-z) and non-empty (-n) …

5 tools to create bootable usb from iso linux command line and gui

Learn to create bootable usb from iso linux command line. dd iso to usb burn iso to usb linux ubuntu debian. how to make bootable pendrive in linux