Sometimes I want to inspect and verify queries made by an application or hunt a bug that involves more complex queries. The essential part of this process requires altering PostgreSQL server configuration to log SQL statements.
Simple shell script that will iterate through the directories in the
PATH variable and print only files identified as scripts.
I am constantly on the move, so sometimes I need to quickly verify my external IP address, as I do not want to accidentally block myself on some kind of firewall.
I always asked myself how to password protect GRUB entries on an encrypted notebook to lock down the boot loader and protect it from unauthorized access.
It is well described how to verify file existence or type, but there is much more information that can be easily verified inside shell script using nothing more than simple
Sometimes I want to access a private server at home from a different network while being on the go.
The easiest way to do this is to use autossh utility to create a secure and persistent reverse SSH tunnel to the publicly available server.
Do you want to use the latest version of Iceweasel, also known as Firefox?
Then add the repository provided by the Debian Mozilla team and choose between
Sometimes I need to check the installed package version, compare it with the available version, or verify that the correct version is already installed. I will show you how to quickly perform these checks.
Default Debian installation does not include VPN support inside the Network Manager applet. The reason behind this decision is probably the variety of available solutions.
Since Debian Jessie installation, I have encountered
Hangcheck timer elapsed error. It is a really nasty bug as the only way to escape frozen
X Window System is to reboot the whole operating system.