Linux and Unix, Open Source, Linux Howtos
Suddenly the Spam being sent via IMAP AUTHRELAY (600000+ mail’s in queue), i can’t able to delete from GUI, its stroked and very struggle to do it. Then i have …
How to remove the messages from “exim” mail queue Read More
MySQL/MariaDB is an opensource database management software, which is very famous, user friendly and widely used for data storage. This will allow the user to create a database, database user, …
Three Ways To Change User’s MySQL/MariaDB Password in Linux Read More
You need to check a current disk space usage (or enough free disk space) on your Linux system before you performing any patch update or installing a new application or …
How to Check Disk Space Usage in Linux Using the df Command? Read More
Nagios is one of the best monitoring tool, that monitors entire IT infrastructure and ensure everything functioning properly. It monitors systems, applications, services, appliance (router, switch, load-balancer, etc). In the …
How To Reset/Change The NagiosAdmin Password in Linux? Read More
rDNS stand for Reverse DNS Lookup or Reverse DNS Resolution. In general, DNS is used to determine the IP address associated with a domain name. This process is known as …
How To Check Reverse DNS (rDNS) Lookup In Linux? Read More
As we already know root is a super user that can do anything in Linux system. It’s similar to Administrator user in Windows. root (Super User) can change any user …
How to Change The Root User Password in Linux? Read More
If you are working on thousands of files a day and want to find a list of files that have been modified recently in a directory for certain purposes, this …
How to find recently modified files in Linux Read More
ConfigServer Security & Firewall (csf) is one of the famous and advanced software firewall for Linux operating system. It is very famous and running on 1000000+ servers, that prevents unnecessary …
How to Manage ConfigServer Security and Firewall (CSF) From Linux Command Line? Read More
systemd is a new system and service manager for Linux system, which was implemented/adapted into all the major Linux distributions over the traditional SysV init systems due to lots of …
How To Start / Stop / Restart / Enable / Reload The Dovecot Mail Service In Linux? Read More
systemd is a new system and service manager for Linux system, which was implemented/adapted into all the major Linux distributions over the traditional SysV init systems due to lots of …
How To Start / Stop / Restart / Enable / Reload The Exim Mail Service In Linux? Read More