PUBLIC MARKS from falko

This tutorial shows how to install and use suPHP with PHP4 and PHP5. suPHP is a tool for executing PHP scripts with the permissions of their owners instead of the Apache user. With the help of suPHP you can also have PHP4 and PHP5 installed at the same time which I will describe at the end of this article.

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.

This is a detailed description about how to set up a Ubuntu 6.06 LTS server that offers all services needed by ISPs and hosters (Apache web server, Postfix mail server (with SMTP-AUTH and TLS!), DNS server, FTP server, MySQL server, POP3/IMAP, Quota, Firewall, etc.). This guide comes with lots of screenshots and is therefore easy to follow even for Linux newbies.

This article shows how to install and configure mod_cband on an Apache2 web server. mod_cband is an Apache2 module which provides bandwidth quota and throttling. It solves the problem of limiting users' and virtualhosts' bandwidth usage. The current versions can set virtualhosts' and users' bandwidth quotas, maximal download speed, requests-per-second speed and the maximal number of simultaneous IP connections.

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 (Apache web server, Postfix mail server (with SMTP-AUTH and TLS!), DNS server, FTP server, MySQL server, POP3/IMAP, Quota, Firewall, etc.).

Spamcop is pretty much dependant on user input. If no one submits and verifies spam, then they will have no blacklist. However that whole submission and verification process is a bit annoying. Why should I bother to actually submit spam to Spamcop and have it verified? If I just delete it, that will take less time... This tutorial shows how to automate this submission and verfication process. All I do is just putting the spam into certain folders and our good old friend cron does the rest.

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.

This is a short tutorial showing how to install the Macromedia Flash player on a Linux system using Wine. It was tested on Ubuntu Dapper Drake beta 2 (on x86 - 32 bit machine).

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 one takes over silently.

This article shows how you can test your Linux firewall with a tool called FTester (Firewall Tester). With FTester you can check your firewall's filtering policies. The tool consists of two perl scripts, a packet injector (ftest) and the listening sniffer (ftestd). Furthermore, FTester also provides Intrusion Detection System (IDS) capabilities.

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.

This is a detailed description how to set up a CentOS 4.3 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.). This tutorial is written for the 64-bit version of CentOS 4.3, but should apply to the 32-bit version with very little modifications as well.

This is a brief tutorial on how to sync websites from your Linux system to your palm for offline reading. The websites are stored in Plucker format. You will need to install the Plucker viewer for palm which can be found at the Plucker website. The software you will use to grab the websites and convert them into Plucker format is called Sunrise. To transfer the Plucker files to a Palm you will need pilot-link.

This tutorial shows how to configure a MySQL 5 cluster with three nodes: two storage nodes and one management node. This cluster is load-balanced by a high-availability load balancer that in fact has two nodes that use the Ultra Monkey package which provides heartbeat (for checking if the other node is still alive) and ldirectord (to split up the requests to the nodes of the MySQL cluster).

DSPAM is a scalable and open-source content-based spam filter designed for multi-user enterprise systems. It is great at filtering out spam but on busy mailservers the pruning of the MySQL databases takes way too much time.<br><br>The default purge-4.1.sql script provided with DSPAM can be heavily optimized by adding indexes to the database and using the indexes properly when pruning.<br><br><a href=http://www.howtoforge.com/optimizing_dspam_mysql4.1 target=_blank>http://www.howtoforge.com/optimizing_dspam_mysql4.1</a>

This is a detailed description how to set up a Fedora Core 5 based server that offers all services needed by ISPs and hosters (Apache web server (SSL-capable), Postfix mail server (with SMTP-AUTH and TLS), DNS server, FTP server, MySQL server, POP3/IMAP, Quota, Firewall, etc.). This tutorial is written for the 64-bit version of Fedora Core 5, but should apply to the 32-bit version with very little modifications as well.