- A Beginner's Guide To btrfs
This guide shows how to work with the btrfs file system on Linux. It covers creating and mounting btrfs file systems, resizing btrfs file systems online, adding and removing devices, changing RAID levels, creating subvolumes and snapshots, using compression and other things. btrfs is still marked as experimental, but all those features make it a very interesting and flexible file system that should be taken into consideration when you look for the right file system.
- A Guide to Virtualization on Mandriva Linux 2007 Spring
Have you ever wished you had another computer handy? Maybe you want to try a new operating system out. Maybe you want to test something experimental without potentially breaking your own system. Maybe you need to run some software that only runs in a different operating system. Mandriva Linux 2007 Spring comes with a range of virtualization options that can help.
- A Short Introduction To Apt-Pinning
This article is a short overview of how to use apt-pinning on Debian and Debian-based distributions (like Ubuntu). Apt-Pinning allows you to use multiple releases (e.g. stable, testing, and unstable) on your system and to specify when to install a package from which release. That way you can run a system based mostly on the stable release, but also install some newer packages from testing or unstable (or third-party repositories).
- Adding And Updating SpamAssassin Rulesets With RulesDuJour
This article explains how you can download additional SpamAssassin rulesets resp. automatically update these rulesets with a shell script called RulesDuJour. These additional rulesets can increase your spam recognition rate dramatically. Most of the rulesets that RulesDuJour supports can be found on the SA Rules Emporium web site.
- An attempt to complete automatic discovery and mounting of SMB (Windows and Samba) networkshares
For some time I have been looking for a good way to let my computer discover the Windows network and mount shares on demand. After trying the kioslaves in the desktop of my choice (KDE) and the FUSE programs Fusesmb and SmbNetFs, I was not really satisfied. There had to be a way to let my computer discover all the workgroups/domains, the hosts and the shares, and mount a share on a hosts on demand.
by 2 users - Apache Module For OpenID Authentication
OpenID is a widely adopted technology for user authentication in web applications. It relies on the concepts of distributed user authentication in blog applications. This small cookbook explains step-by-step how to install and configure the Open Source Apache module mod_auth_openid.
- Apache: Creating A Session-Aware Loadbalancer Using mod_proxy_balancer (Debian Etch)
Since Apache 2.1, a new module called mod_proxy_balancer is available which lets you turn a system that has Apache installed into a loadbalancer. This loadbalancer retrieves requested pages from two or more backend webservers and delivers them to the user's computer. Users get the impression that they deal with just one server (the loadbalancer) when in fact there are multiple systems behind the loadbalancer that process the users' requests. By using a loadbalancer, you can lower the load average on your webservers. One important feature of mod_proxy_balancer is that it can keep track of sessions which means that a single user always deals with the same backend webserver. Most websites are database-driven nowadays with user logins etc., and you'd get weird
- Apache2: How To Redirect Users To Mobile Or Normal Web Site Based On Device Using mod_rewrite
Since the massive rise of smartphones and tablets like the iPhone, iPad, Android phones and tablets, BlackBerries, etc. you might have considered creating a mobile version of your web site. This tutorial explains how to configure Apache to serve the mobile version of your web site if the visitor uses a mobile device, and the normal version if the visitor uses a normal desktop PC. This can be achieved with Apache's rewrite module.
- Apache2: Logging To A MySQL Database With mod_log_sql (Debian Etch)
This guide shows how you can write the Apache2 access log to a MySQL database instead of a file. To achieve this, I use the Apache2 module mod_log_sql. I am using a Debian Etch server in this tutorial.
- ASSP With Embedded ClamAV Integrated Into Postfix With Virtual Users And Domains
This document describes how to integrate ASSP (Anti-Spam SMTP Proxy) with embedded ClamAV into a mail server based on Postfix featuring virtual users and domains, i.e. users and domains that are in a MySQL database.
- Automatic And Up-To-Date Fedora 9 Installations With Kickstart And Novi
Kickstart allows you to do automatic Fedora/RedHat/CentOS installations. This is useful and time-saving if you have to deploy tens or hundreds of similar systems (e.g. workstations). Kickstart reads the installation settings from a Kickstart configuration file. The problem with Kickstart is that it usually uses the distribution's packages from the time the distribution was released, i.e., it does not consider updates which means you would have to update each system manually after the Kickstart installation. This guide explains how you can do up-to-date Kickstart installations with the help of a tool called novi.
- Automatic File Replication (Mirror) Across Two Storage Servers With GlusterFS 3.2.x On Ubuntu 12.10
This tutorial shows how to set up a high-availability storage with two storage servers (Ubuntu 12.10) that use GlusterFS. Each storage server will be a mirror of the other storage server, and files will be replicated automatically across both storage servers. The client system (Ubuntu 12.10 as well) will be able to access the storage as if it was a local filesystem. GlusterFS is a clustered file-system capable of scaling to several peta-bytes. It aggregates various storage bricks over Infiniband RDMA or TCP/IP interconnect into one large parallel network file system. Storage bricks can be made of any commodity hardware such as x86_64 servers with SATA-II RAID and Infiniband HBA.
- Back Up (And Restore) LVM Partitions With LVM Snapshots | HowtoForge - Linux Howtos and Tutorials
This tutorial shows how you can create backups of LVM partitions with an LVM feature called LVM snapshots. An LVM snapshot is an exact copy of an LVM partition that has all the data from the LVM volume from the time the snapshot was created. The big advantage of LVM snapshots is that you don't have to worry about open files and database connections, and you don't have to interrupt/halt services on the live partition because a snapshot is usually created in fractions of a second, so your users won't notice any disruption, and your snapshot holds consistent data.
by 2 users - Back Up Your Files With Areca On Fedora 9
Areca is a personal file backup software developed in Java. It allows you to select files or directories to back up, filter, encrypt and compress their content, and store them on your backup location. Areca supports incremental backups and generates backup reports, which can be stored on your disk or sent by email. This guide explains how to install and use it on a Fedora 9 desktop (GNOME).
- Back Up Your Files With Fwbackups On Fedora 8
This document describes how to set up, configure and use Fwbackups on a Fedora 8 desktop. The result is an easy-to-use backup system for desktop usage. Fwbackups creates partial backups which can be stored locally or on a removable device. You have also the option to run scheduled backups.
- Back Up Your Files With Pybackpack On Fedora 8
This document describes how to set up, configure and use Pybackpack on Fedora 8. The result is an easy to use backup system for desktop usage. Pybackpack creates incremental backups which can be stored locally or remotely (SSH) - the usage of removable devices is supported. You also have the option to burn the backup(s) directly on a CD/DVD.
- Back Up/Restore Hard Drives And Partitions With CloneZilla Live
This tutorial shows how you can back up and restore hard drives and partitions with CloneZilla Live. CloneZilla Live is a Linux Live-CD that you insert into your computer; it contains hard disk and partition imaging and cloning tools similar to Norton Ghost. The created images are compressed and can be transferred to a Samba-, SSH-, or NFS server or to a local hard drive or USB drive.
- Benchmark: Apache2 vs. Lighttpd (Static HTML Files)
This benchmark shows how Apache2 (version 2.2.3) and lighttpd (version 1.4.13) perform compared to each other when delivering a static HTML file (about 50KB in size). This benchmark was created with the help of ab (Apache benchmark) on a VMware vm (Debian Etch); if you try this yourself, your numbers might differ (depending on your hardware), but the tendency should be the same.
- Boot Linux Over HTTP With boot.kernel.org (BKO)
This tutorial shows how you can boot Linux over HTTP with boot.kernel.org (BKO). All that users need is Internet connectivity and a small program (gpxe) to boot the machine. This gpxe program provides network booting facility. BKO allows you to boot into the following distributions: Debian, Ubuntu, Damn Small Linux, Knoppix, Fedora. BKO provides gpxe images for USB sticks, CDs, and also for floppies, i.e., you can boot from a USB sticks, a CD, or a floppy.
- Boot Linux Over HTTP With netboot.me
This tutorial shows how you can boot Linux over HTTP with netboot.me. All that users need is Internet connectivity and a small program (gpxe) to boot the machine. This gpxe program provides network booting facility. netboot.me allows you to boot into the following distributions: Debian, Fedora, OpenSUSE, and Ubuntu. netboot.me provides gpxe images for USB sticks, CDs, and also for floppies, i.e., you can boot from a USB sticks, a CD, or a floppy.
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