Postfix

How to Install Postfix on CentOS/RHEL 7/6/5

How to Install Postfix on CentOS/RHEL 7/6/5

How to Install Postfix on CentOS/RHEL 7/6/5

  1. Step 1 – Install Postfix. If Postfix not already installed on your machine, Install it using the following command. ...
  2. Step 2 – Configure Postfix. Let's start postfix configuration. ...
  3. Step 3 – Restart Postfix Service. ...
  4. Step 4 – Open Firewall Port.

Ffmpeg How to Install and Use FFmpeg on Debian 9
How to Install and Use FFmpeg on Debian 9
The following steps describe how to install FFmpeg on Debian 9 Start by updating the packages list sudo apt update. Install the FFmpeg package by runn...
Docker How to Remove All Unused Objects in Docker
How to Remove All Unused Objects in Docker
How to Remove Docker Containers To remove a stopped container, use the command docker container rm [container_id] ... To remove all stopped containers...
School Spanish School Ditches Windows For Ubuntu
Spanish School Ditches Windows For Ubuntu
Latest in the trend is a Spanish school that has opted Ubuntu to replace Windows operating system on 120 school computers. It happened a year back whe...