nixCraft - Linux and Unix tutorials for new and seasoned sysadmin

Disable SELinux on CentOS 7 / RHEL 7 / Fedora Linux

last updated July 18, 2019 in CentOS, Linux, RedHat and Friends, SELinux

I need to disable SELinux on CentOS 7. How can I disable SELinux from the command line over ssh based session?

How to install LAMP on Debian 10 (Buster)

last updated July 15, 2019 in Apache, Debian / Ubuntu, Linux, MySQL, PHP

How do I install a LAMP stack on Debian 10 (Buster)?

How to delete a UFW firewall rule on Ubuntu / Debian Linux

last updated July 14, 2019 in Debian / Ubuntu, Iptables, Linux, Ubuntu Linux

How do I remove and delete a UFW firewall rule running on Ubuntu or Debian Linux?

Debian 10 Set Up OpenVPN Server In 5 Minutes

last updated July 13, 2019 in Cryptography, Debian / Ubuntu, Linux, OpenVPN

I am a new Debian Linux 10 server user. How do I set up an OpenVPN Server on Debian Linux version 10 server to shield my browsing activity from bad guys on public Wi-Fi, and more?

How to change hostname on Debian 10 Linux

last updated July 13, 2019 in Debian / Ubuntu, Linux

How do I change the hostname of a Debian Linux 10 “Buster” operating system permanently using the command line tools?

How to upgrade Debian 9 to Debian 10 Buster using the CLI

last updated July 15, 2019 in Debian / Ubuntu, Linux, Package Management

I have Debian 9.x installed on AWS EC2. How do I upgrade Debian 9 Stretch to Debian 10 Buster using the apt command/apt-get command CLI? How can I upgrade Debian 9 to Debian 10 using ssh client?

Fedora Linux install vnstat network traffic monitor

last updated July 11, 2019 in Fedora Linux, Linux, Monitoring

How do I install vnstat network traffic monitor on Fedora Linux system to monitor my hourly, daily, weekly, and monthly bandwidth usage?