- Web Server
- Control Panels
- Site Map/RSS Feeds
The Perfect Setup - SuSE 10.1 (32-bit)
This is a detailed description about how to set up a SuSE 10.1 based server that offers all services needed by ISPs and hosters (web server (SSL-capable), mail server (with SMTP-AUTH and TLS!), DNS server, FTP server, MySQL server, POP3/IMAP, Quota, Firewall, etc.).
In the end you should have a system that works reliably, and if you like you can install the free webhosting control panel ISPConfig (i.e., ISPConfig runs on it out of the box).
How To Save Traffic With Apache2's mod_deflate
In this tutorial I will describe how to install and configure mod_deflate on an Apache2 web server. mod_deflate allows Apache2 to compress files and deliver them to clients (e.g. browsers) that can handle compressed content which most modern browsers do. With mod_deflate, you can compress HTML, text or XML files to approx. 20 - 30% of their original sizes, thus saving you server traffic and making your modem users happier.
How to scan your Linux-Distro for Root Kits
Do you suspect that you have a compromised system ?Check now for root kits that the intruder may have installed !!!
So... What in the hell is a root kit ???
A root kit is a collection of programs that intruders often install after they have compromised the root account of a system.
These programs will help the intruders clean up their tracks, as well as provide access back into the system.
Root kits will sometimes leave processes running so that the intruder can come back easily and without the system administrator's knowledge !
Debian Sarge (3.1) with Ruby on Rails and Apache 2 with FastCGI
This HowTo will step you through installing Debian (Sarge) with Ruby on Rails and Apache 2 with FastCGI managed with ISPConfig.
This HowTo is based mainly on The Perfect Setup -- Debian Sarge (3.1) by Falko -- consult that HowTo for basic Debian Network Install Setup.
How To Test Your Linux-Distro Firewall
Recently, I wrote an article about how to scan your Linux-Distro for Root Kits.Now that the machine is clean. I think, a good thing to do is to test my Firewall.
The good news is that we can use the free tool FTester.
The bad news is that FTester needs to be configured right...
So... Let's get to work !
Flash Player 8.5 Linux (Ubuntu Dapper Drake)
This tutorial shows how to install the Flash player on a Linux system. It was tested on Dapper Drake beta 2 (on x86 - 32 bit machine).
Add Mailfiltering to the Falko howto Postfix Guide
In this guide, you will learn how to get around some of the security policies that Postfix affords in favour of quickness and speed.
The Falko guide shows us how to get Virtual users working with Postfix/ Courier IMAP however it would be nice to offer per user mail filtering on email marked as spam by Spam Assasin for example to go into a SPAM folder for example.
How To Set Up A Loadbalanced High-Availability Apache Cluster
This tutorial shows how to set up a two-node Apache web server cluster that provides high-availability. In front of the Apache cluster we create a load balancer that splits up incoming requests between the two Apache nodes. Because we do not want the load balancer to become another "Single Point Of Failure", we must provide high-availability for the load balancer, too. Therefore our load balancer will in fact consist out of two load balancer nodes that monitor each other using heartbeat, and if one load balancer fails, the other takes over silently.
Server Monitoring With munin And monit
In this article I will describe how to monitor your server with munin and monit. munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration, whereas monit checks the availability of services like Apache, MySQL, Postfix and takes the appropriate action such as a restart if it finds a service is not behaving as expected. The combination of the two gives you full monitoring: graphics that lets you recognize current or upcoming problems (like "We need a bigger server soon, our load average is increasing rapidly."), and a watchdog that ensures the availability of the monitored services.
Mirror Your Web Site With rsync
This tutorial shows how you can mirror your web site from your main web server to a backup server that can take over if the main server fails. We use the tool rsync for this, and we make it run through a cron job that checks every x minutes if there is something to update on the mirror. Thus your backup server should usually be up to date if it has to take over.