Have you ever wondered why some programs simply stop when the server is very busy? There could be an error in the code causing the failure, or it could be a victim of kernel assassination! The Linux kernel has some … Continue reading →

Rsnapshot is very useful tool when it comes to backups – based on reliable and versatile ‘rsync’ is capable to meet most of possible expectations. Just recently I had to figure out how to make it backup only specific subdirectories … Continue reading →

If you ever used SSH then you must heard about tunneling feature. “By using tunneling one can (for example) carry a payload over an incompatible delivery-network, or provide a secure path through an untrusted network.” – wikipedia.org I’m going to … Continue reading →

I had this situation recently when Apache got high load, ate all the remaining RAM and started to consume SWAP too. If you ever experienced this you may already know that this is mad spiral that usually brings the system … Continue reading →

…have processed over 9.57 zebibyte (10^21=2^70) of data (9 570 000 000 000 000 000 000 bytes) accordingly to last research from few years ago. If all these zeros and ones were written in books a pile or rather tower … Continue reading →

Recently I’ve had chance to learn that there is a fairly simple way to migrate MSSQL database to MySQL – I’ve run the test myself and succeeded – so if you fancy MySQL, go for it, but read what I’ve … Continue reading →

This time it’s just a little reminder – probably first one of a series! Spaces In File Name When writing a script that will have to operate on files it’s more than likely that you’ll get a file with spaces … Continue reading →

If you have ever tried to install an older version of Ubuntu server, you may have found that versions 10.04 and earlier do not work very well when booted from USB. Below is one work around I’ve found to the … Continue reading →

This time we’re going to look into multiboot from a USB stick (aka pendrive) using GRUB, with a special look into Ubuntu Server – which clearly has problems seeing the USB drive on installing startup – thus making it impossible. … Continue reading →