If you’re using Ubuntu 18.04+ (or distro based on Ubuntu 18.04) and you would like to know which DNS servers are responsible for your connection, you can try the next …
Category: Tips & Tricks
Email alert for SSH logins
It is good idea to get notified when someone logs into your Linux server. First be sure that your server is able to send email (at least Postfix + valid …
Simple pushtogit script
Create new file and add the next lines inside (for example pushtogit.sh) #!/bin/bash echo " ====================== running command from" $PWD cd $PWD git add . echo -n " ====================== …
rsync tutorial
Rsync is a command-line utility commonly used to copy files and folders from one location to another while preserving file attributes (permissions, ownership). In other words, it is used to …
There is no suitable CSPRNG installed on your system
Some PHP packages may stop working after update with error message: “There is no suitable CSPRNG installed on your system”. The reason for this that they stopped using OpenSSL and …
CentOS 6.x boot GRUB on software RAID /dev/md0
If you’ve just installed CentOS 6.x on software RAID and it won’t boot from /dev/md0, don’t worry. It can be fixed. – Insert CentOS media/DVD and boot in rescue mode …
Change hostname on Mint Linux / Ubuntu – Howto
To change your hostname, you’ll need to edit /etc/hostname file with sudo nano /etc/hostnamesudo nano /etc/hostname The file content is very simple. It contains the current hostname and all you …
Command line system information
If you’re not sure which components are installed in your server/pc, you can use inxi which is a command line system information script. It will show you the system hardware, …
Fix “Failed To Fetch” Apt error Howto
Google announced plans to discontinue 32-bit Google Chrome for Linux and it has. On some 64bit Ubuntu based systems (Mint/Kubuntu/Xubuntu,..), during update process you may notice the next error: “Failed …
CentOS PPTP client Howto
The Point-to-Point Tunneling Protocol (PPTP) is a method for implementing virtual private networks. Since it is marked as non secure and vulnerable, I don’t recommend it as a “final” VPN …