I got an error related to “bc” the command-line calculator while executing the MySQL tuning script. The fix was also simple 🙂 Error details Error: Command line calculator ‘bc’ not found! The “bc” is the command-line calculator for Linux. You…
Author: Arunlal A
Senior System Developer at Zeta. Linux lover. Traveller.
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Happy coding and deploying!
How to install imagemagick in a cpanel server – Command-line option
imagemagik installation Yes, the imagemagik installation steps are simple for a cPanel server. Before installing you must have an idea about imagemagik. It’s simply an addon for your cPnel server that allows for image manipulation. ImageMagick® is a software suite…
How to open a port for a particular IP address using iptables, CSF and APF – A comparison
This is a very important and useful trick to block some ports from public. And open it for some IP address. It’s quite simple by configuring iptables with the help of applications like CSF or APF. By using iptables commands, blocking…
Quick way to remove all emails from the mail queue – Exim command line option
Remove emails from queue. We have already discussed a lot of topics regarding the Exim mail transfer agent (MTA). Here I am listing some command-line options to remove all emails from your server mail queue. We know the Exim command…
A simple note on Reverse DNS Record
Why this topic important? What are the uses of rDNS record? Yeah, we all know about forward DNS lookup and its working. It’s a topic directly focusing on “What is reverse DNS?” A domain name system (DNS) is simply points…
Exim command to remove emails from mail queue for a specific Sender/Receiver – The “exiqgrep” usage
We have already discussed the basic command usages of Exim mail server in one of the previous post. In this post I am explaining the command usages for finding or sorting emails in Exim mail queue for particular sender or…
How to check DDoS attack on windows server.
A denial-of-service attack (DoS attack) or distributed denial-of-service attack (DDoS attack) is an attempt to make a computer resource unavailable to its intended users. As like in linux server we can use the netstat commnet here too. Here I am…