How to delete locked mails from mail queue (Exim)?
Deleting locked emails from Exim mail queue.. Yeah its something different from normal deletion of mails from exim mail queue. Here I’m explaining how to remove locked emails from queue....
Category: commands
ps command switches, usages and examples in Unix/Linux
Commonly using “ps command” switches with example – Unix/Linux This will be a very useful discussions if you are managing Linux servers with many processes. A lot of switches are...
Top command usages and examples in Unix/Linux
Top command has an important role in Unix/Linux system/server administration side. The command “top” displays a dynamic view of process that are currently running under the system. Here I’m explaining...
How to change the database user password – cPanel?
Why this post? The MySQL community has depreciated “old_passwords” option since MySQL 5.6 version. So we won’t be able to recollect the password from an old password hashing format. So,...
MySQL tweaking – best practices
Why tweaking MySQL? We all need fast, reliable and secure environment for our online space. Almost all websites has its own databases to store its data. MySQL is one of...
How do I enable extended logging in Exim via CLI?
Extended logging, what’s this? It adds valuable logging information to your exim_mainlog (/var/log/exim_mainlog) file, so that you can easily analyze the mail log. It should be very easy to determine...
Quick way to remove all frozen emails from mail queue Exim
An introduction layer to Frozen mails Simply, frozen emails are the emails sent to invalid, non existing email accounts that were undelivered to the address correctly. If the email can’t...
How to check spamming on server which has Exim MTA?
Electronic spamming is the use of electronic messaging systems to send unsolicited messages (spam), especially advertising, as well as sending messages repeatedly on the same site. It happens in many...
[Malware Detector] Installation & Usage of Maldet on Linux
Why Maldet? This is one of the commonly using Malware detector for Linux servers. The installation and usages of Maldet is quit simple compared to other scanners. It uses threat data...
15+ Commonly using OpenVZ commands and its usages
OpenVZ is a container based, OS level virtualization technique for Linux. OpenVZ creates multiple secure, isolated Linux containers (otherwise known as VEs or VPSs) on a single physical server. Each...
Difference between Softlink and Hardlink – Unix/Linux
Good day techies!!! This is essential to know about links (both softlink or Symlink and hardlink) because we are Linux techies.. It’s vital to knowing about how Linux/Unix environment works!! Here...
Load monitoring in Linux servers – top, w and uptime commands’ usage for checking the load on server
This is a necessary thing to check the load-average on your server for its better and stable performance. In a Linux server/system we can check the load by different ways....
How to change the priority of a Linux process – What is nice value in Linux?
What actually “nice value” means ? Why should we bother ? Every process which are running and waiting to execute under Unix has it’s own priority. Changing the priority comes under...
How to enable MySQLi extension on web-server
Before going to enable it on the server, I will share some ideas about MySQLi. Then, I should explain how we can enable MySQLi on a cpanel server and How we can check...
Simple steps to install and configure sar (sysstat) on Ubuntu/Debian servers
Monitoring servers are very important for every server administrator. There are a lot of command line tools are available to monitor server resource usages. The Sar or Sysstat is one of the great command-line tool to...