Category: Linux

Linux Server Managment

Define ssh key per host using ansible_ssh_private_key_file nixCraft

I set up SSH keys on a Linux or Unix as per my project needs and cloud hosting providers. I also new to Ansible IT automation and DevOps tool.…

How To Set Up SSH Keys on RHEL 8 nixCraft

I am a new RHEL 8 server sysadmin. How do I configure SSH public key-based authentication for RHEL (Red Hat Enterprise Linux) 8 server?Introduction – SSH is an acronym for secure shell.…
blank

How To Install MariaDB on RHEL 8 nixCraft

I am a new MariaDB and RHEL 8 user. How do I install MariaDB on RHEL 8 server using the yum command?Introduction – MariaDB is a free and open source database management system.…
blank

Multiple vulnerabilities in FreeBSD NFS server code nixCraft

FreeBSD is a free and open source operating system. The NFS (Network File System) is a server and client application that turn FreeBSD into a file sharing server.…
blank

How to update OpenSUSE Linux software and kernel using CLI nixCraft

I am a new OpenSUSE Linux server user. How do I upgrade and update OpenSUSE Linux software and kernel from the CLI? How do I use the command line tool to upgrade your system to the latest version of openSUSE software and kernel?Introduction…
blank

How To Find Out FreeBSD Version and Patch Level Number nixCraft Updated Tutorials/Posts

How do I find out my FreeBSD server version and patch level of the installed system using command line option? Can you tell us command to find out FreeBSD version and kernel patch level?Introduction…
blank

How to install and configure memcached on Ubuntu Linux 18.04 nixCraft

I would like to reduce the load on my MariaDB/MySQL/PostgreSQL server using memcached. How do I install and configure memcached server on Ubuntu Linux 18.04 LTS?Introduction…
blank

How To Find My Public IP Address From Command Line On a Linux nixCraft Updated Tutorials/Posts

How do I find out my public IP address on the Linux and OS X Unix command line to use with my own bash shell script without using third party web site?…
blank

How to upgrade Ubuntu 16.04 to 18.04 LTS using terminal nixCraft

I am using Ubuntu Linux 16.04 LTS on Lionde. How do I upgrade Ubuntu 16.04 to 18.04 LTS using terminal bash shell over ssh based session?Introduction…
blank

How to setup a UFW firewall on Ubuntu 18.04 LTS server nixCraft

How do I setup a firewall with UFW (uncomplicated firewall) on an Ubuntu Linux 18.04 LTS server to restrict traffic on my personal Ubuntu web-server that hosts my cat’s blog?…