When upgrading within the same OS version, old kernels don’t typically get cleaned up automatically. This is to enable you to safely "rollback" to an older kernel version if you experience problems with a newer one.
Domain Name System (DNS) converts the name of a Web site (www.pcx3.com) to an IP address (104.21.70.187). This step is important, because the IP address of a Web site’s server, not the Web site’s name, is used in routing traffic over the...
For most of us it’s not a secret that using Windows nowadays gives you a lot of problems ranging from issues of vulnerability, pricing and even hardware compatibility. Problems like these should be easily resolved if not absent as every second...
mysqladmin is a command line tool that allows you to do administrative tasks in MySQL without actually login to the MySQL console.
Today We’re gonna install PHP, MySQL and WordPress 5.5 on a new machine running Linux Ubuntu 20, and as a bonus, We’ll make a script to do it for us in the future. I’m running all the steps in this tutorial with root privileges, so...
The shell is probably the most important tool you will use in GNU/Linux. Besides using it to enter simple commands, the shell will allow you to take “shortcuts” when entering commands and filenames. The shells allows you to redirect the...
Back in 2018 CloudFlare reported massive amplification attacks from UDP port 11211 on a scale never seen before. Zimbra quickly updated their wiki with How to Block Memcache Attack and if you haven’t taken the advice yet, you probably should...
exiwhat displays what each instance of exim is currently involved with:
exiwhat
To monitor the exim log in realtime, use the tail command:
tail -f /var/log/exim_mainlog
In this article, I’ll share with you my experience in setting up "a graceful shutdown" for a Linux machine that is connected to a UPS (Smart-UPS SC620) using NUT software.
In this post I'll show you how to run a cronjob every 10 minutes.