You are most likely using Netfilter, aka IPTables, if you are running a recent Linux distro. Most firewalls supplied with hosting control panels or simple setup scripts fail to take advantage of some of the more advanced features available. A feature…
Category: Quick Start
AXEL – multi-threaded downloads
What is Axel? When you want to download something from the command line you normally use the commands wget or curl. What if you want to accelerate these downloads? I recently found this command: Axel, works the same way but…
Reclaim reserved disk space XEN/KVM/VMWare/Dedicated
Joe Dougherty from SecureDragon.net (great guy running a great company) sent me a tip about this thread over at Lowendtalk.com and asked if I could write something about this “weird trick”. Actually it’s not a wierd trick, it’s a built in security…
Find your Debian version, the command line way
Like every VPS addict it is quite normal to forget which version of an operating system you are running especially if it is a server that you haven’t logged onto for a long time. In other cases, you may simply be…
Nginx – IP based access control
Introduction Nginx comes with a nifty module that allows us to allow or deny access to directories served by the webserver. The module is named ngx_http_access_module to allow or deny access to IP address. The syntax can look as follows:…
Java Security Settings
Introduction With the latest Java updates the security settings has been set at a higher level by default and there are many websites that now experience problems with some older Java applets that no longer works. This is a common…
Using copy.com as backup/sync destination
I’ve written guides on how to backup to both Dropbox.com and Box.com and now got the request via Twitter to write how to do the same thing with copy.com. Since I didn’t have a copy.com account I had to create…
Transparent Proxy Browsing with Squid3
3rd place in the Teach something, Win something contest goes to Mark Mearns for his SQUID installation script. Mark took 3rd place because of the simplicity he created with this script which will make a great addition in the script…
Creating an SSH Proxy Tunnel with PuTTY
It is time to write a guide for Windows users on how to tunnel your traffic without the need to install any software on your local computer. Say that you are stuck behind a firewall that filters your traffic or…
Detecting Current Version of MySQL Server
A popular question when troubleshooting database issues is what version of mySQL is installed and used? You can find this information by running a simple command on the mySQL server. Connect to your MySQL engine with your favorite client, why…