In this article you will learn how to securely wipe hard drive Linux, also how to securely delete files in Linux. First you need found correct disk path to hard drive which you want securely wipe, list hard drives in… Continue Reading
In this article you will learn a couple of methods on how to fix Fail2ban High Memory Usage problem. There may be several reasons for Fail2ban consumption a very large amount of memory (in my case it was about 2,5… Continue Reading
In this article you will learn how to Fix Zabbix Warning: Lack of Free Swap Space, and manually clear swap memory in Linux. The problem has 3 solutions, create or increase swap space, increase server RAM, and finally we can… Continue Reading
In this article you will learn how to install TURN Server on Ubuntu 20.04 LTC for WebRTC, configure Coturn with Long Term Credential Mechanism, configure IPTables firewall, check TURN server. The TURN server implements the STUN protocol also. Coturn is… Continue Reading
In this tmux tutorial you will learn basic tmux usage and list of of essential commands. tmux is an open-source terminal multiplexer (Terminal MUltipleXer) for Unix-like operating systems. It allows multiple terminal sessions to be accessed simultaneously in a single… Continue Reading
In this article you will learn How To Cleanup Boot Partition Ubuntu Linux. Linux boot partition can be filled with old unused kernels. In first step we need find out current Linux kernel version and unused kernels. After it remove… Continue Reading
I this article I will show how to easy fix ImageMagick error: convert-im6.q16: unable to open image During converting from PDF to JPG with ImageMagick in Ubuntu Linux you can have conversion error: convert-im6.q16: unable to open image In.pdf’: No… Continue Reading
In this article you we learn How to Convert PDF to JPG in Linux using command line with example. ImageMagick Suite We will use the ImageMagick package. The convert program is a member of the ImageMagick suite of tools. Use… Continue Reading
In this article I will show how to Install Zoom on Linux – Ubuntu (Debian) and RedHat (CentOS, Fedora) Install Zoom on RedHat (CentOS/Fedora) Steep 1. Download Zoom Client First we need download Zoom for Linux from Download Center. Open… Continue Reading
In this article I will show example of cron job for Linux to delete files older than 10 days. How to Edit Crontab file To edit or create new crontab file, type the following command: $ crontab -e Cron Job… Continue Reading