Posts filed in ‘Linux - Guides’
Quick And Easy Setup For DomainKeys Using Ubuntu, Postfix And Dkim-Filter
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Quick And Easy Setup For DomainKeys Using Ubuntu, Postfix And Dkim-Filter
This is a quick tutorial for setting up DomainKeys on Ubuntu (I used
6.06LTS - but should work the same on others) using dkim-filter with
Postfix so emails from your domain will not constantly end up in
Yahoo’s spam filter.
Setting Up A High-Availability Load Balancer With HAProxy/Wackamole/Spread On Debian Etch
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Setting Up A High-Availability Load Balancer (With Failover and Session Support) With HAProxy/Wackamole/Spread On Debian Etch
This article explains how to set up a two-node load balancer in an active/passive configuration with HAProxy, Wackamole, and Spread
on Debian Etch. The load balancer sits between the user and two (or
more) backend Apache web servers that hold the same content. Not only
does the load balancer distribute the requests to the two backend
Apache servers, it also checks the health of the backend servers. If
one of them is down, all requests will automatically be redirected to
the remaining backend server. In addition to that, the two load
balancer nodes monitor each other using Wackamole and Spread, and if
the master fails, the slave becomes the master, which means the users
will not notice any disruption of the service. HAProxy is
session-aware, which means you can use it with any web application that
makes use of sessions (such as forums, shopping carts, etc.).
How To Set Up A Caching Reverse Proxy With Squid 2.6 On Debian Etch
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How To Set Up A Caching Reverse Proxy With Squid 2.6 On Debian Etch
This article explains how you can set up a caching reverse proxy with Squid
2.6 in front of your web server on Debian Etch. If you have a
high-traffic dynamic web site that generates lots of database queries
on each request, you can decrease the server load dramatically by
caching your content for a few minutes or more (that depends on how
often you update your content).
Creating A Dual-Boot System On RAID10 (Ubuntu/Windows)
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Creating A Dual-Boot System On RAID10 (Ubuntu/Windows)
I just bought a new computer and I want to run Ubuntu 8.10 and
Vista. I’m really afraid to loose some of my data when a harddrive
dies, so I decided to go for a RAID10-setup. Most modern motherboards
support RAID0,1,5 and 10. After assembling my new computer, I discovered that the motherboard
didn’t have a true hardware-RAID-controller. Instead it’s just
software-RAID, sometimes called fakeraid. If I was installing a
Linux-only-system, I wouldn’t care and just use the Linux software-Raid
options. But this time, my system has to be dual-boot.
How To Back Up MySQL Databases With mylvmbackup On Ubuntu 8.10
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How To Back Up MySQL Databases With mylvmbackup On Ubuntu 8.10
mylvmbackup
is a Perl script for quickly creating MySQL backups. It uses LVM’s
snapshot feature to do so. To perform a backup, mylvmbackup obtains a
read lock on all tables and flushes all server caches to disk, creates
a snapshot of the volume containing the MySQL data directory, and
unlocks the tables again. This article shows how to use it on an Ubuntu
8.10 server.
Installing Nginx With PHP5 And MySQL Support On Fedora 10
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Installing Nginx With PHP5 And MySQL Support On Fedora 10
Nginx (pronounced
“engine x”) is a free, open-source, high-performance HTTP server. Nginx
is known for its stability, rich feature set, simple configuration, and
low resource consumption. This tutorial shows how you can install Nginx
on a Fedora 10 server with PHP5 support (through FastCGI) and MySQL
support.
The Perfect Desktop - OpenSUSE 11.1 (GNOME)
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The Perfect Desktop - OpenSUSE 11.1 (GNOME)
This tutorial shows how you can set up an OpenSUSE 11.1
desktop that is a full-fledged replacement for a Windows desktop, i.e.
that has all the software that people need to do the things they do on
their Windows desktops. The advantages are clear: you get a secure
system without DRM restrictions that works even on old hardware, and
the best thing is: all software comes free of charge.
The Perfect Server - OpenSUSE 11.1
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The Perfect Server - OpenSUSE 11.1
This is a detailed description about how to set up an OpenSUSE 11.1
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, Dovecot POP3/IMAP, Quota,
Firewall, etc. This tutorial is written for the 32-bit version of
OpenSUSE 11.1, but should apply to the 64-bit version with very little
modifications as well.
Using memcached With Your vBulletin Forum To Reduce Server Load (Debian Etch)
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Using memcached With Your vBulletin Forum To Reduce Server Load (Debian Etch)
In this article I will explain how you can reduce server load by using memcached together with your vBulletin
forum software (I’m assuming you are running vBulletin on Apache2 with
mod_php5). 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.
ZRM 2.1: Backing Up MySQL Partitioned Tables
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ZRM 2.1: Backing Up MySQL Partitioned Tables
MySQL 5.1 is generally available for production use. One of the key features of
MySQL 5.1 is partitioning. This how to shows how to install and configure Zmanda Recovery Manager for MySQL (ZRM)
2.1 to perform backup and recovery of MySQL partitioned tables.