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Debian

Running Vhosts Under Separate UIDs/GIDs With Apache2 mpm-peruser On Debian Etch

Post date: August 24, 2008, 11:08 Category: Installing Views: 4231 Comments
Tutorial quote: This article explains how you can install and configure apache2-mpm-peruser on a Debian Etch server. apache2-mpm-peruser is an MPM (Multi-Processing Module) for the Apache 2 web server, very similar to apache2-mpm-itk, but faster (almost as fast as apache2-mpm-prefork). mpm-peruser allows you to run each of your vhosts under a separate UID and GID - in short, the scripts and configuration files for one vhost no longer have to be readable for all the other vhosts. It is based on metuxmpm, a working implementation of the perchild MPM. The result is a sane and secure web server environment for your users, without kludges like PHP's safe_mode.
Linux

Hardening Linux: a 10 step approach to a secure server

Post date: June 22, 2005, 10:06 Category: Security Views: 4389 Comments
Tutorial quote: The Internet has become a far more dangerous place than it was 20 years ago. Nowadays, Operating System and application security is an integral part of a server configuration and, while firewalls are very important, they are not the panacea.

This list of steps is intended as a guideline with a practical approach. We’ll try to provide a complete picture without getting into unnecesary details. This list won’t replace a good book on secure systems administration, but it will be useful as a quick guide.

Before we get started it’s worth to mention that security is not a status: it’s just a process. The correct initial setup of the server only provides a good start and helps you get half the way through. But you actually need to walk the other half of the road, by providing proper security vigilance, monitoring and updating.
Debian

Creating Simple Virtual Hosts With mod_mysql_vhost On Lighttpd (Debian Etch)

Post date: August 7, 2008, 09:08 Category: Installing Views: 3591 Comments
Tutorial quote: This guide explains how you can use mod_mysql_vhost to create simple virtual hosts on a lighttpd web server on Debian Etch. With mod_mysql_vhost, lighttpd can read the vhost configuration from a MySQL database. Currently, you can store the domain and the document root in the MySQL database which results in very simple virtual hosts. If you need more directives for your vhosts, you would have to configure them in the global section of lighttpd.conf, which means they would be valid for all vhosts. Therefore, mod_mysql_vhost is ideal if your vhosts differ only in the domain and document root.
Debian

Server Monitoring With munin And monit On Debian Etch

Post date: May 13, 2007, 21:05 Category: System Views: 4650 Comments
Tutorial quote: In this article I will describe how you can monitor your Debian Etch 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 let 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.
Debian

Mplayer Configuration

Post date: April 4, 2006, 20:04 Category: Installing Views: 3057 Comments
Tutorial quote: MPlayer is a movie and animation player that supports a wide range of codecs and file formats, including MPEG 1/2/4, DivX 3/4/5, Windows Media 7/8/9, RealAudio/Video up to 9, Quicktime 5/6, and Vivo 1/2. It has many MMX/SSE(2)/3Dnow(Ex) optimized native audio and video codecs, but allows using XAnim's and RealPlayer's binary codec plugins, and Win32 codec DLLs. It has basic VCD/DVD playback functionality, including DVD subtitles, but supports many text-based subtitle formats too. For video output, nearly every existing interface is supported. It's also able to convert any supported files to raw/divx/mpeg4 AVI (pcm/mp3 audio), and even video grabbing from V4L devices.
Debian

Server Monitoring With munin And monit On Debian Lenny

Post date: February 28, 2010, 13:02 Category: Miscellaneous Views: 4628 Comments
Tutorial quote: In this article I will describe how you can monitor your Debian Lenny 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.
Debian

Splitting lighttpd Logs With vlogger And Creating Statistics With Webalizer

Post date: January 31, 2008, 13:01 Category: Miscellaneous Views: 4063 Comments
Tutorial quote: Vlogger is a little tool with which you can write lighttpd logs broken down by virtual hosts and days. With vlogger, we need to put just one accesslog.filename directive into our global lighttpd configuration, and it will write access logs for each virtual host and day. Therefore, you do not have to split lighttpd's overall access log into access logs for each virtual host each day, and you do not have to configure lighttpd to write one access log per virtual host (which could make you run out of file descriptors very fast). At the end of this tutorial I will show you how to use webalizer to create statistics from the lighttpd access logs.
eBox

Using eBox As A Gateway: Firewall, Traffic Shaping, HTTP Proxy And More

Post date: June 11, 2010, 12:06 Category: Installing Views: 7009 Comments
Tutorial quote: eBox Platform is the Linux small business server that allows you to manage all your network services like firewall, DHCP, DNS, VPN, proxy, IDS, mail, file and printer sharing, VoIP, IM and much more. These functionalities are tightly integrated, automating most tasks, avoiding mistakes and saving time for system administrators. This article will show you step by step how to use eBox as a Gateway, featuring network configuration, load balancing between two Internet connections with WAN failover and multigateway rules for policy routing, traffic shaping, DHCP and DNS cache for the LAN network and HTTP proxy with different content filtering policies and antivirus.
Ubuntu

Virtual Users/Domains With Postfix, Courier, MySQL, SquirrelMail (Ubuntu 11.10)

Post date: November 8, 2011, 08:11 Category: Installing Views: 20971 Comments
Tutorial quote: This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. Passwords are stored in encrypted form in the database. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords.
Debian

Virtual Users/Domains With Postfix, Courier, MySQL, SquirrelMail (Debian Lenny)

Post date: March 5, 2009, 12:03 Category: Installing Views: 5887 Comments
Tutorial quote: This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database Postfix uses. The resulting Postfix server is capable of SMTP-AUTH and TLS and quota. Passwords are stored in encrypted form in the database. In addition to that, this tutorial covers the installation of Amavisd, SpamAssassin and ClamAV. I will also show how to install SquirrelMail as a webmail interface so that users can read and send emails and change their passwords.
Web-based applications and online marketing solutions - LumoLink