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Server Monitoring With munin And monit On Debian Wheezy

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In this article I will describe how you can monitor your Debian Wheezy server with munin and monit. munin produces nifty little graphics about nearly every aspect of your server 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, and a watchdog that ensures the availability of the monitored services. read more...
mail this link | permapage | score:9397 | -falko, June 27, 2013

Debian / Ubuntu: Block unwanted sites with SquidGuard Web Filter

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How do I install and configure SquidGuard a web filter plugin for Squid to restrict access to domains/URLs based upon access control lists? How do I block porn, gambling, and other web-sites using squid proxy server version 3.x under Debian or Ubuntu Linux server for my school? read more...
permapage | score:9329 | -nixcraft, August 24, 2012

Using RoundCube Webmail on Debian 7

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This guide explains how to install the RoundCube webmail application on a Debian Wheezy server running ISPConfig and Apache2, and how to enable the ISPConfig 3 plugins for RoundCube so that users can perform actions like changing their email passwords from within RoundCube. Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface; it comes with functions like MIME support, address book, folder manipulation, message searching and spell checking. read more...
permapage | score:9314 | -falko, June 13, 2013

Tutorial: Run Joomla 1.7 on Nginx on Debian 6, Ubuntu 11.10

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This tutorial shows how you can install and run a Joomla 1.7 web site on a Debian Squeeze or Ubuntu 11.10 system that has nginx installed instead of Apache (LEMP = Linux + nginx (pronounced "engine x") + MySQL + PHP). nginx is a HTTP server that uses much less resources than Apache and delivers pages a lot of faster, especially static files. read more...
permapage | score:9289 | -falko, December 15, 2011

Rsnapshot: Archive, Snapshot, Backup MySQL Databases on Debian

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This howto will show you how to install and set up Rsnapshot, enable archiving of snapshots and how to back up MySQL databases on Debian. Rsnapshot is a filesystem snapshot utility for making backups of local and remote systems. Using rsync and hard links, it is possible to keep multiple, full backups instantly available. The disk space required is just a little more than the space of one full backup, plus incrementals. read more...
permapage | score:9261 | -falko, January 14, 2013

Tutorial: Build a Debian 6 server with BIND, Apache, MySQL, PureFTPd

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This tutorial shows how to prepare a Debian Squeeze (Debian 6.0) server for the installation of ISPConfig 3, and how to install ISPConfig 3. ISPConfig 3 is a webhosting control panel that allows you to configure the following services through a web browser: Apache web server, Postfix mail server, MySQL, BIND nameserver, PureFTPd, SpamAssassin, ClamAV, and many more. read more...
permapage | score:9184 | -falko, February 9, 2011

Tutorial: Create Encrypted FTP backups with duplicity, duply on Debian 6

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When you rent a dedicated server nowadays, almost all providers give you FTP backup space for your server on one of the provider's backup systems. This tutorial shows how you can use duplicity and duply to create encrypted backups on the provider's remote backup server over FTP. duply is a duplicity wrapper script that allows us to use duplicity without interaction (i.e., you do not have to type in any passwords). read more...
permapage | score:9176 | -falko, July 9, 2012

Tutorial: Contao 2.10.2 on Nginx (Debian 6/Ubuntu 11.10)

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This tutorial shows how you can install and run a Contao 2.10.2 web site on a Debian Squeeze or Ubuntu 11.10 system that has nginx installed instead of Apache (LEMP = Linux + nginx (pronounced "engine x") + MySQL + PHP). nginx is a HTTP server that uses much less resources than Apache and delivers pages a lot of faster, especially static files. read more...
permapage | score:9152 | -falko, December 4, 2011

nginx: Block Visitors by Country with GeoIP Module (Debian/Ubuntu)

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This tutorial explains how to use the GeoIP module with nginx to block visitors by country. This is made possible by the GeoIP database which maps users' IP addresses to countries. nginx must be compiled with the HttpGeoipModule to use the GeoIP database. read more...
permapage | score:9147 | -falko, August 31, 2012

Tutorial: Build a Debian 6.0 server

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This tutorial shows how to set up a Debian Squeeze (Debian 6.0) server that offers all services needed by ISPs and hosters: Apache web server (SSL-capable), Postfix mail server with SMTP-AUTH and TLS, BIND DNS server, Proftpd FTP server, MySQL server, Courier 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 2 (i.e., ISPConfig runs on it out of the box). read more...
permapage | score:9145 | -falko, February 14, 2011

Build an HPC (cluster) on Debian and Kerrighed

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There are many guides found on the net describing Kerrighed and how to set it up using Ubuntu and others. However, to the best of my knowledge there isn't a step by step guide specifically designed for Kerrighed using Debian Lenny. So here it is. You can set up your own Beowulf Cluster using Debian Lenny and Kerrighed in about 50 steps. Many of the steps described here are taken straight from other guides because there are applicable here (see sources at the bottom.) Many other steps are based on my own trial and error. read more...
mail this link | permapage | score:9142 | -gg234, March 29, 2010

Tutorial: Installing Lighttpd, PHP5, PHP-FPM, MySQL on Debian 7

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Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on a Debian Wheezy server with PHP5 support (through PHP-FPM) and MySQL support. PHP-FPM (FastCGI Process Manager) is an alternative PHP FastCGI implementation with some additional features useful for sites of any size, especially busier sites. I use PHP-FPM in this tutorial instead of Lighttpd's spawn-fcgi. read more...
permapage | score:9123 | -falko, July 16, 2013

Set up Postfix, MySQL, DoveCot, DSpam, ClamAV, Postgrey on Debian Linux

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This guide describes how to set up a full email solution in Debian Linux (all code is from Debian Etch). I was asked to design a secure, scalable, portable solution for a small company. While the guide references many servers, the company only had 4 physical machines, Xen was used to virtualize the entire solution. That particular aspect of the system is not discussed in this guide, although I will try to get it into the next revision. read more...
permapage | score:9116 | -falko, October 31, 2007

Debian packaging Spice-Gtk-0.7.4X on Ubuntu 11.10

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Following bellow is attempt to reproduce Hans de Goede blog entry at http://planet.spice-space.org/ on Ubuntu 11.10 with intent to build Spice-Gtk-0.7.4X up on current snapshot of git://anongit.freedesktop.org/spice/spice-gtk to obtain Spice-Gtk working stable with development Spice version 0.9.1. Build done on Ubuntu Oneiric include USB redirection support , but due to obvious reasons stays just a feature which cannot be used for real redirection. If USB redirection will appear to be in Qemu-kvm upstream, then Ubuntu will be ready to pick it up. Packaged version version of Spice-Gtk-0.7.4X is built up on mentioned git repository with GTK2 and GTK3 as two sets of packages. read more...
mail this link | permapage | score:9093 | -Boris Derzhavets, October 5, 2011

AWStats, JAWStats Tutorial: Website statistics on Debian

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This tutorial explains how you can generate statistics for your web site with AWStats and JAWStats on a Debian Lenny web server. AWStats is a free powerful and featureful tool that generates advanced web server statistics. JAWStats runs in conjunction with AWStats and produces clear and informative charts, graphs and tables about your website visitors. AWStats is able to create graphical web pages for the statistics, but JAWStats presents this data in a much nicer way - it's much better organized and makes use of Ajax and Flash. read more...
mail this link | permapage | score:9084 | -falko, June 28, 2010

Many SSL web sites on one IP with Apache 2.2, GnuTLS (Debian Lenny)

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This tutorial describes how you can host multiple SSL-encrypted web sites (HTTPS) on one IP address with Apache 2.2 and GnuTLS on a Debian Lenny server.
Pound, a reverse proxy, can be used to provide an SSL front end to multiple back end web apps, web sites, and java apps. This isn't really the same thing as the article provides - it is not name-based virtual hosting to SSL. It isn't perfect, but works surprisingly well.

Basically, you install the SSL cert into pound.cfg and listen on port 443. Then configure multiple backends and proxy names to normal HTTP (non-SSL) services running either on the same or different machines. read more...
mail this link | permapage | score:9082 | -falko, February 5, 2011

High-resolution text console with uvesafb in Debian/Ubuntu

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While you may rarely use the console on your server, it's nice to have a high-resolution display just to see that many more columns and rows. Linux's vesa module (via the vga= parameter) has been around for a while and made this possible, provided you kept up with what VGA mode number to use and don't mind the spotty hardware compatibility.

While KMS is the way to do this in the future, it doesn't help us with the drivers and hardware we have now. A new kernel module, uvesafb, mainlined in 2.6.24, is another, new option. In addition to specifying modes in a more user-friendly way (i.e. 1280x1024-32 for 32-bit color, with a 1280x1024 resolution), hardware compatibility is better in particular, you can now get a high-resolution text console with NVIDIA display adapters.

In the following, I describe how to use uvesafb on Debian and derivative distributions (i.e. Ubuntu). The instructions assume kernel 2.6.27 or higher.

(and here's a bit of high resolution digital art) read more...
mail this link | permapage | score:9072 | -tamasrepus, November 11, 2010 (Updated: April 24, 2012)

Tutorial: OXID eShop Community Edition on Nginx (Debian 6/Ubuntu 11.10)

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This tutorial shows how you can install and run OXID eShop Community Edition (version 4.5.9) on a Debian Squeeze or Ubuntu 11.10 system that has nginx installed instead of Apache (LEMP = Linux + nginx (pronounced "engine x") + MySQL + PHP). OXID eShop is a feature-rich ecommerce platform; I will use the Community Edition here which is licensed under an open source certified license (GPL v3.0). nginx is a HTTP server that uses much less resources than Apache and delivers pages a lot of faster, especially static files. read more...
mail this link | permapage | score:9035 | -falko, May 18, 2012

Tutorial: Install SugarCRM on Debian Linux

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SugarCRM is a webbased CRM solution written in PHP. SugarCRM is available in different flavours called "Editions" ("Community" (free), "Professional", and "Enterprise"). For a detailed overview of the different editions, have a look at the SugarCRM website. In this tutorial I will describe the installation of the free Community Edition on Debian Lenny. With the modules My Portal, Calendar, Activities, Contacts, Accounts, Leads, Opportunities, Cases, Bugtracker, Documents and Email, SugarCRM Community Edition offers everything that can be expected from a CRM solution. read more...
mail this link | permapage | score:9033 | -falko, April 17, 2009

Run Linux Mint Debian Cinnamon in VirtualBox

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One edition of Linux Mint Debian released a few days ago, features two desktop environments MATE and Cinnamon. The former is a fork of GNOME 2, while the later is an attempt to bring sanity to GNOME 3, to make it look like something designed for use on desktop computers.

However, if you attempt to run it on older computers, those without 3D acceleration, or in a virtual environment using VirtualBox, you will very likely get this error message shown in the screen shot below. read more...
permapage | score:9011 | -finid, April 30, 2012
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Closed Source Linux Distribution Launched

Space Tyrant: Multithreading lessons learned on SMP hardware

The short life and hard times of a Linux virus

The Real Microsoft Monopoly

Apple DIY Repair

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Programming Language Tradeoffs: 3GL vs 4GL

The Network Computer: An opportunity for Linux

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VPS: Xen vs. OpenVZ

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Linux dominates Windows

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Space Tyrant: A threaded game server project in C

How to install Ubuntu Linux on the decTOP SFF computer

Why Programmers are not Software Engineers

No, RMS, Linux is not GNU/Linux

Space Tyrant: A multiplayer network game for Linux

MiniLesson: An introduction to Linux in ten commands

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Download: Linux 3D Client for Starship Traders

Missing the point of the Mac Mini

Linux vs. Windows: Why Linux will win

Why software sucks

Beneficial Computer Viruses

Mono-culture and the .NETwork effect

Tutorial: Introduction to Linux files

 

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