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Debian

Preventing Brute Force Attacks With BlockHosts On Debian Etch

Post date: September 30, 2007, 09:09 Category: Security Views: 4015 Comments
Tutorial quote: In this article I will show how to install and configure BlockHosts on a Debian Etch system. BlockHosts is a Python tool that observes login attempts to various services, e.g. SSH, FTP, etc., and if it finds failed login attempts again and again from the same IP address or host, it stops further login attempts from that IP address/host. By default, BlockHosts supports services that use TCP_WRAPPERS, such as SSH, i.e. services, that use /etc/hosts.allow or /etc/hosts.deny, but it can also block other services using iproute or iptables.
Debian

Installing memcached And The PHP5 memcache Module On Debian Etch (Apache2)

Post date: September 11, 2008, 11:09 Category: Optimizing Views: 6253 Comments
Tutorial quote: This guide explains how to install memcached and the PHP5 memcache module on a Debian Etch system with Apache2. memcached is a daemon that can store objects in the system's memory (e.g. results of database queries) which can speed up your web site tremendously. You can use memcached over a network (i.e., install your web application on one server and memcached on another server), but usually you install both on one server to avoid the networking overhead.
Debian

Creating Advanced MySQL-Based Virtual Hosts On Lighttpd (Debian Etch)

Post date: August 19, 2008, 10:08 Category: Software Views: 3121 Comments
Tutorial quote: This guide explains how you can create advanced virtual hosts on a lighttpd web server on Debian Etch that are stored in a MySQL database. The method described here does not use the lighttpd mod_mysql_vhost module, and unlike mod_mysql_vhost (which allows you to store only the hostname and document root of a vhost in a database), this method allows to store individual configuration directives for each vhost in the MySQL database.
Linux

How To Patch BIND9 Against DNS Cache Poisoning (Debian/Fedora/CentOS)

Post date: July 29, 2008, 09:07 Category: Security Views: 3571 Comments
Tutorial quote: Dan Kaminsky earlier this month announced a massive, multi-vendor issue with DNS that could allow attackers to compromise any name server - clients, too. These two articles explain how you can fix a BIND9 nameserver on Debian Etch and Fedora/CentOS so that it is not vulnerable anymore to DNS cache poisoning.

http://www.howtoforge.com/how-to-patch-bind-to-avoid-cache-poisoning-debian-etch
http://www.howtoforge.com/how-to-patch-bind-to-avoid-cache-poisoning-fedora-centos
Debian

How to Install Adobe Flash in Debian Etch/Lenny/Sid

Post date: January 5, 2009, 18:01 Category: System Views: 3957 Comments
Tutorial quote: In this tutorial we will see how to install Adobe Flash in Debian Etch/Lenny/Sid. Adobe Flash (previously called "Macromedia Flash"') is a multimedia platform created by Macromedia and currently developed and distributed by Adobe Systems. Since its introduction in 1996, Flash has become a popular method for adding animation and interactivity to web pages; Flash is
commonly used to create animation, advertisements, and various web page components, to integrate video into web pages, and more recently, to develop rich Internet applications.
Debian

How To Enable Networking In Xen Guests On Hetzner's New EQ Servers (Debian Lenny)

Post date: October 27, 2009, 23:10 Category: Network Views: 5241 Comments
Tutorial quote: This tutorial shows how you can enable networking in Xen guests (domU) on Hetzner's new EQ servers. With the new EQ servers, you can get up to three additional IPs that are in the same subnet as the server's main IP. The problem is that these additional IPs are bound to the MAC address of the host system (dom0) - Hetzner's routers will dump IP packets if they come from an unknown MAC address. This means we cannot use Xen's bridged mode, but must switch to Xen's routed mode where the host system (dom0) acts as the gateway for the guests.
Debian

Upgrade multiple debian systems with Approx

Post date: June 15, 2009, 06:06 Category: System Views: 4392 Comments
Tutorial quote: Approx is an HTTP-based Debian archive server. It fetches packages from remote repositories on demand, and caches them for local use.Approx saves time and network bandwidth if you need to install or upgrade Debian software for a number of machines on a local network.
Debian

Creating a Wiki with kwiki

Post date: December 17, 2005, 22:12 Category: Software Views: 2682 Comments
Tutorial quote: Wikis are simple interactive websites which are extremely easy to use for storing easily updated text content. Using a Wiki you can easily create a lot of content with hyperlinks between them. Debian has packaged several different Wiki systems and here we'll look at installing just one of them: KWiki.

Wikis have become familiar to many people thanks to the popularity of large sites such as Wikipedia and can be very useful for creating collaborative websites.

Whilst there are many Wiki packages included in the Debian GNU/Linux distribution I've always had a soft spot for KWiki due to its simplicity, Perl nature, and low requirements.

Installing the software under Debian is very simple and we will show how to setup a new installation using the Debian Apache2 webserver package.
Debian

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

Post date: August 24, 2008, 11:08 Category: Installing Views: 3245 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

Share A Keyboard And Mouse Between Systems With Synergy

Post date: June 7, 2010, 17:06 Category: Hardware Views: 3991 Comments
Tutorial quote: If you have multiple machines in the same workspace, you probably use a KVM to manage them -- or maybe you even have multiple keyboards and mice. There's a better way! Synergy lets you share a single keyboard and mouse between multiple networked machines. It's even cross-platform!
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