Blog Posts - Linux Servers



Resolving hostnames on Linux servers

To be able to resolve Internet hostnames on a Linux machine, you have to add the DNS servers that are authoritative for that particular domain in the config files of the server. There are two ways in which you can bind IPs to hostnames on a CentOS ma...
by IT training day on Jan 23, 2015

Udemy – Learn To Run Linux Servers Part 2(LPI Level 1-102)

This course highlights more advanced linux concepts and provides study material for the LPI certification exam 102. One of the hottest jobs in Information Technology today is Linux Administration. As the Cloud vendors continue to grow, the need for t...
by Tutorials For Download on Dec 13, 2014

Udemy – Learn To Run Linux Servers From Scratch (LPI Level 1-101)

Learn to run Linux servers and prepare for the LPIC-1 Exam 101 professional certification for Linux administrators. One of the hottest jobs in Information Technology today is Linux Administration. As the Cloud vendors continue to grow the need for ta...
by Tutorials For Download on Dec 3, 2014

Udemy – Learn To Run Linux Servers Part 2 (LPI Level 1-102)

This course highlights more advanced linux concepts and provides study material for the LPI certification exam 102. One of the hottest jobs in Information Technology today is Linux Administration. As the Cloud vendors continue to grow, the need for t...
by Tutorials For Download on Dec 3, 2014

Linux PHP Disable chmod() and chown() functions for better Apache server security

I have to administer few inherited Linux servers with Ubuntu and Debian Linux. The servers hosts mainly websites with regularly un-updated Joomlas and some custom developed websites which were developed pretty unsecure. To mitigate hacked websites I...

Maldetect – Malware web content file scanner for GNU / Linux – Keep your hosting servers Malware clean

  It is so common nowadays that Shared hosting clients upload PHP / Javascript / Ajax scripts carelessly downloaded from somewhere containing malicious features or infected by third party script kiddie tools which replicate themselves after succ...

Create Easy Data Backups with Rsnapshot back-up tool on GNU / Linux

  Backing up information on Linux servers is essential part of routine system adminsitrator job. Thus I decided to write for those interested in how one can easily create backups of important data through a tiny tool called rsnapshot which I pri...

How to disable ACPI on productive Linux servers to decrease kernel panics and increase CPU fan lifespan

Why would anyone disable ACPI support on a server machine?? Well  ACPI support kernel loaded code is just another piece of code constantly being present in the memory,  that makes the probability for a fatal memory mess up leading to ...

How to disable ACPI on productive Linux servers to decrease kernel panics and increase CPU fan lifespan

Why would anyone disable ACPI support on a server machine?? Well  ACPI support kernel loaded code is just another piece of code constantly being present in the memory,  that makes the probability for a fatal memory mess up leading to ...

How to copy / clone installed packages from one Debian server to another

1. Dump all installed server packages from Debian Linux server1 First it is necessery to dump a list of all installed packages on the server from which the intalled deb packages 'selection' will be replicated. debian-server1:~# dpkg --get-sel...

How to copy / clone installed packages from one Debian server to another

1. Dump all installed server packages from Debian Linux server1 First it is necessery to dump a list of all installed packages on the server from which the intalled deb packages 'selection' will be replicated. debian-server1:~# dpkg --get-sel...

Auto restart Apache on High server load (bash shell script) – Fixing Apache server temporal overload issues

I've written a tiny script to check and restart, Apache if the server encounters, extremely high load avarage like for instance more than (>25). Below is an example of a server reaching a very high load avarage:; server~:# uptime 13:46:59 up...

How to delete million of files on busy Linux servers (Work out Argument list too long)

If you try to delete more than 131072 of files on Linux with rm -f *, where the files are all stored in the same directory, you will get an error: /bin/rm: Argument list too long. I've earlier blogged on deleting multiple files on Linux and FreeB...

How to delete million of files on busy Linux servers (Work out Argument list too long)

If you try to delete more than 131072 of files on Linux with rm -f *, where the files are all stored in the same directory, you will get an error: /bin/rm: Argument list too long. I've earlier blogged on deleting multiple files on Linux and FreeB...

Recommended logrorate practices on heavy loaded (busy) Apache Linux servers

If you are sys admin of Apache Webserver running on Debian Linux relying on logrorate to rorate logs, you might want to change the default way logroration is done. Little changes in the way Apache log files are served on busy servers can have positiv...


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