Today I was working on setting up public key authentication over SSH on few servers I inherited recently.  I have done this many times and never ran in to following error:
ssh_exchange_identification: Connection closed by remote host
After doing further research on the server I was trying to connect to (looking at logs) I noticed the server [...]

Before we go in to details on how to set up public key authentication, I would like to talk about pros and cons about doing this. After you know the pros and cons, you can make an educated decision. First, let us talk about biggest benefit about setting up public key authentication over [...]

There are a lot of great articles on setting up Bind and some of them even go in great details on setting up secure DNS server using Bind. I have used one them time after time called: Linux Howto: Chroot Bind How To. One of the things I do not like [...]

Ramdisk is very good to have if you want something to stay in memory.   Files in memory makes it so you can access them with out having to access hard drive all the time.  Perfect candidates would be things which do not change eg. web images or downloadable files, etc.  If you have Linux Kernel [...]

Code revision control is very crucial part of development.  It ensures you know who has changed which files and you are able to rollback to older versions in case new changes are breaking your website page or entire project.  There are few options for you if you are looking into setting up code revision control.  My preferred [...]