Linux Blog

Virtual Box Clone Script

Filed under: Shell Script Sundays — TheLinuxBlog.com at 8:30 am on Sunday, February 27, 2011

I was in need for a way to clone virtual box vms so I wrote a quick bash script to clone them. After writing it, I realized that I could just export a VM, and then import it. There are limitations such as no snapshot support and probably a bunch I’ve never thought about. Either way, hit the jump to see the outcome.

(Read on …)

Remote SSH Port Forwarding

Filed under: General Linux — TheLinuxBlog.com at 1:00 am on Wednesday, February 23, 2011

SSH Remote Port Forwarding

SSH is an amazing tool, I often find myself finding new and interesting ways (at least to me) to use it. It is a great tool to have in your toolbox.

This may be hard to explain in works, but here goes.

Picture this: you have 3 hosts, Host A has outbound access only and is on the same network as Host B. Host B has port 22 open, accepts ssh and is allowed to ssh to Host A. Host C is the computer you are sitting at and on a different network. So, you need to connect to Host A from host C. The way to do this is with SSH port forwarding.

Lets say Host A is 192.168.1.2, Host B is 192.168.1.1 and Host C is 10.0.0.1 on the different network. Host C also has port 22 open.

So, in order to connect to Host A from Host C you can do the following with local port forwarding:

(Read on …)

Linux Server Management

Filed under: General Linux — TheLinuxBlog.com at 5:30 am on Wednesday, February 9, 2011

linux server management
Management… What more is there to say? Management has the ability to either make your life easier or make your life a living hell, server management can go the same way. With these utilities Linux Server Management doesn’t have to be quite as grim. In fact having the right server management software can be very rewarding. In this post we’ll cover some of the Linux Server Management software that is available. As always, feel free to contribute your favorite tools!
(Read on …)

Bash Script Renaming Files

Filed under: Shell Script Sundays — TheLinuxBlog.com at 3:15 am on Sunday, February 6, 2011

I recently needed to rename a bunch of files. I didn’t want to do it manually because it would take too long and I don’t like copying+pasting that many times. This is where shell-scripting comes in handy. (Read on …)

Reverse Proxy with ModProxy

Filed under: Linux Software — TheLinuxBlog.com at 3:30 am on Wednesday, February 2, 2011

Reverse Proxy with Mod Proxy

Mod proxy is a versatile module for apache that has many uses. One of its many uses is the reverse proxy feature. Lets say you have multiple web servers behind a router and want to give the outside world access to each server. Your router can only open port 80 for one host, but with modproxy you can direct users to different servers depending on which sub domain or directory they are requesting. This also works for external sites that may not be on your private network.

Hit the jump to see how.

(Read on …)