How do I clear my DNS cache !

The local DNS cache in your machine will store the locations  of web-servers/websites that contain pages which you have recently viewed. If the location of these pages have  changed, you will be unable to access them due to the local DNS cache ( the one cached by your...

Issue with dovecot.index file

A recent & common issue faced with dovecot service in cPanel based server’s is the corruption of dovecot.index files for the email accounts. When the index file is broken, the respective user facing this issue will not be able to login to his webmail and...

GNS3 – Quick installation and setup (for Ubuntu)

This is a small intro on how to install GNS3 on Ubuntu platforms.           GNS3 is a graphical network simulator, which gives you the ability to create network topologies graphically and give the devices a simulated environment to run. This...

Investigating your Linux box for vulnerabilities

A server in a live environment is always susceptible to malware attacks, code vulnerabilities, hacking, rootkits and what not else ! Analyzing your server for these back-doors and pin-pointing the exact issue always poise a big problem to the server owners or their...

Control panels for production servers

When it comes to selecting a control panel for your hosting server, you might be in a perplexed stage. The industries hit-list items are cPanel, DirectAdmin and Parallels Plesk. I have played with these 3 and most of the times when I play longer, they screw me up. The...

Ubuntu 14.04 LTS – A quick review

Finally after much hype , the latest LTS’d version of Ubuntu is here, 14.04. I had been a Debian fan for long and was waiting eagerly for the release of 14, with a hope Ubuntu would eradicate the common bugs and issues which i have been facing in late versions.  It...