falko's Bookmarks About "Debian"

How To Enable Networking In Xen Guests On Hetzner's New EQ Servers (Debian Lenny) | HowtoForge - Linux Howtos and Tutorials

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.

by falko 2009-10-27 19:56 xen · network · domu · hetzner · debian

http://www.howtoforge.com/how-to-enable-networking-in-xen-guests-on-hetzners-new-eq-servers-debian-lenny - cached - mail it - history

Installing Cherokee With PHP5 And MySQL Support On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

Cherokee is a very fast, flexible and easy to configure Web Server. It supports the widespread technologies nowadays: FastCGI, SCGI, PHP, CGI, TLS and SSL encrypted connections, virtual hosts, authentication, on the fly encoding, load balancing, Apache compatible log files, and much more. This tutorial shows how you can install Cherokee on a Debian Lenny server with PHP5 support (through FastCGI) and MySQL support.

by falko 2009-09-22 07:40 cherokee · php · mysql · fastcgi · debian · lenny

http://www.howtoforge.com/installing-cherokee-with-php5-and-mysql-support-on-debian-lenny - cached - mail it - history

How To Limit CPU Usage Of A Process With cpulimit (Debian/Ubuntu) | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how you can limit the CPU usage of a process with the tool cpulimit on Debian/Ubuntu. cpulimit is a simple program that attempts to limit the CPU usage of a process (expressed in percentage, not in cpu time). This is useful to control batch jobs, when you don't want them to eat too much CPU. It does not act on the nice value or other scheduling priority stuff, but on the real CPU usage. Also, it is able to adapt itself to the overall system load, dynamically and quickly.

by falko 2009-09-14 05:52 cpulimit · debian · ubuntu · cpu usage

http://www.howtoforge.com/how-to-limit-cpu-usage-of-a-process-with-cpulimit-debian-ubuntu - cached - mail it - history

How To Set Up Software RAID1 On A Running System (Incl. GRUB Configuration) (Debian Lenny) | HowtoForge - Linux Howtos and Tutorials

This guide explains how to set up software RAID1 on an already running Debian Lenny system. The GRUB bootloader will be configured in such a way that the system will still be able to boot if one of the hard drives fails (no matter which one).

by falko 2009-08-30 13:08 debian · grub · raid · bootloader

http://www.howtoforge.com/how-to-set-up-software-raid1-on-a-running-system-incl-grub-configuration-debian-lenny - cached - mail it - history

Virtual Hosting With PureFTPd And MySQL (Incl. Quota And Bandwidth Management) On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This document describes how to install a PureFTPd server that uses virtual users from a MySQL database instead of real system users. This is much more performant and allows to have thousands of ftp users on a single machine. In addition to that I will show the use of quota and upload/download bandwidth limits with this setup. Passwords will be stored encrypted as MD5 strings in the database.

by falko 2009-08-11 07:30 pureftpd · mysql · ftp · virtual hosting · debian · lenny · quota · bandwidth

http://www.howtoforge.com/virtual-hosting-with-pureftpd-mysql-on-debian-lenny - cached - mail it - history

Boot On BTRFS With Debian | HowtoForge - Linux Howtos and Tutorials

This tutorial will explain you how to boot from a BTRFS filesystem with kernel 2.6.31-RC4 and BTRFS 0.19. BTRFS is a new filesystem with some really interesting features like online defragmenting and snapshots. BTRFS is an experimental filesystem, use at your own risk. The kernel used is also experimental.

by falko 2009-08-02 07:52 btrfs · boot · filesystem · debian

http://www.howtoforge.com/boot-on-btrfs-with-debian - cached - mail it - history

Setting Up ProFTPd + TLS On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

FTP is a very insecure protocol because all passwords and all data are transferred in clear text. By using TLS, the whole communication can be encrypted, thus making FTP much more secure. This article explains how to set up ProFTPd with TLS on a Debian Lenny server.

by falko 2009-07-30 11:24 proftpd · tls · debian · ftp

http://www.howtoforge.com/setting-up-proftpd-tls-on-debian-lenny - cached - mail it - history

Setting Up A High-Availability Load Balancer (With Failover and Session Support) With HAProxy/Heartbeat On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This article explains how to set up a two-node load balancer in an active/passive configuration with HAProxy and heartbeat on Debian Lenny. 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 heartbeat, 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.).

by falko 2009-07-14 05:59 haproxy · heartbeat · high-availability · ha · debian · load balancer

http://www.howtoforge.com/setting-up-a-high-availability-load-balancer-with-haproxy-heartbeat-on-debian-lenny - cached - mail it - history

Striping Across Four Storage Nodes With GlusterFS On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how to do data striping (segmentation of logically sequential data, such as a single file, so that segments can be assigned to multiple physical devices in a round-robin fashion and thus written concurrently) across four single storage servers (running Debian Lenny) with GlusterFS. The client system (Debian Lenny 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.

by falko 2009-07-12 06:47 glusterfs · striping · debian · storage

http://www.howtoforge.com/striping-across-four-storage-nodes-with-glusterfs-on-debian-lenny - cached - mail it - history

Distributed Replicated Storage Across Four Storage Nodes With GlusterFS On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how to combine four single storage servers (running Debian Lenny) to a distributed replicated storage with GlusterFS. Nodes 1 and 2 (replication1) as well as 3 and 4 (replication2) will mirror each other, and replication1 and replication2 will be combined to one larger storage server (distribution). Basically, this is RAID10 over network. If you lose one server from replication1 and one from replication2, the distributed volume continues to work. The client system (Debian Lenny 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.

by falko 2009-06-30 07:29 glusterfs · storage · san · high-availability · debian · raid

http://www.howtoforge.com/distributed-replicated-storage-across-four-storage-nodes-with-glusterfs-on-debian-lenny - cached - mail it - history

Distributed Storage Across Four Storage Nodes With GlusterFS On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how to combine four single storage servers (running Debian Lenny) to one large storage server (distributed storage) with GlusterFS. The client system (Debian Lenny 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.

by falko 2009-06-25 07:33 glusterfs · storage · san · filesystem · debian

http://www.howtoforge.com/distributed-storage-across-four-storage-nodes-with-glusterfs-on-debian-lenny - cached - mail it - history

Setting Up A High-Availability Load Balancer With HAProxy/Keepalived On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This article explains how to set up a two-node load balancer in an active/passive configuration with HAProxy and keepalived on Debian Lenny. 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 keepalived, 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.).

by falko 2009-06-16 06:32 keepalived · haproxy · loadbalancer · high availability · failover · debian · lenny

http://www.howtoforge.com/setting-up-a-high-availability-load-balancer-with-haproxy-keepalived-on-debian-lenny - cached - mail it - history

High-Availability Storage With GlusterFS On Debian Lenny - Automatic File Replication Across Two Storage Servers | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how to set up a high-availability storage with two storage servers (Debian Lenny) 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 (Debian Lenny 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.

by falko 2009-06-09 07:57 glusterfs · replication · mirror · high-availability · debian · ha · storage

http://www.howtoforge.com/high-availability-storage-with-glusterfs-on-debian-lenny-automatic-file-replication-across-two... - cached - mail it - history

Creating An NFS-Like Standalone Storage Server With GlusterFS On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how to set up a standalone storage server on Debian Lenny. Instead of NFS, I will use GlusterFS here. The client system 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.

by falko 2009-06-04 07:18 glusterfs · filesystem · debian · lenny · storage

http://www.howtoforge.com/creating-an-nfs-like-standalone-storage-server-with-glusterfs-on-debian-lenny - cached - mail it - history

Setting Up A PXE Install Server For Multiple Linux Distributions On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how to set up a PXE (short for preboot execution environment) install server on Debian Lenny. A PXE install server allows your client computers to boot and install a Linux distribution over the network, without the need of burning Linux iso images onto a CD/DVD, boot floppy images, etc. This is handy if your client computers don't have CD or floppy drives, or if you want to set up multiple computers at the same time (e.g. in a large enterprise), or simply because you want to save the money for the CDs/DVDs. In this article I show how to configure a PXE server that allows you to boot multiple distributions (i386 and x86_64): Debian Lenny, Ubuntu 9.04, Fedora 10, CentOS 5.3, OpenSuSE 11.1, and Mandriva 2009.1.

by falko 2009-05-26 06:48 pxe · debian · lenny

http://www.howtoforge.com/setting-up-a-pxe-install-server-for-multiple-linux-distributions-on-debian-lenny - cached - mail it - history

Xen Live Migration Of An LVM-Based Virtual Machine With iSCSI On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This guide explains how you can do a live migration of an LVM-based virtual machine (domU) from one Xen host to the other. I will use iSCSI to provide shared storage for the virtual machines in this tutorial. Both Xen hosts and the iSCSI target are running on Debian Lenny in this article.

by falko 2009-04-30 07:47 xen · live migration · iscsi · virtualization · virtual machine · lvm · debian

http://www.howtoforge.com/xen-live-migration-of-an-lvm-based-virtual-machine-with-iscsi-on-debian-lenny - cached - mail it - history

Installing MyDNS-NG & MyDNSConfig 3 On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

In this tutorial I will describe how to install and configure MyDNS-NG and MyDNSConfig 3 on Debian Lenny. MyDNS-NG is a DNS server that uses a MySQL database as backend instead of configuration files like, for example, Bind or djbdns. MyDNSConfig is an easy to use web-based interface to MyDNS-NG. MyDNSConfig can create all types of DNS records that are available in MyDNS and adds features like user management and access privileges.

by falko 2009-04-09 07:12 mydns · mydnsconfig · nameserver · dns · debian · mysql

http://www.howtoforge.com/installing-mydns-ng-and-mydnsconfig-3-on-debian-lenny - cached - mail it - history

A Short Introduction To Apt-Pinning | HowtoForge - Linux Howtos and Tutorials

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).

by falko 2009-03-24 08:26 apt-pinning · apt · debian

http://www.howtoforge.com/a-short-introduction-to-apt-pinning - cached - mail it - history

Virtualization With KVM On A Debian Lenny Server | HowtoForge - Linux Howtos and Tutorials

This guide explains how you can install and use KVM for creating and running virtual machines on a Debian Lenny server. I will show how to create image-based virtual machines and also virtual machines that use a logical volume (LVM). KVM is short for Kernel-based Virtual Machine and makes use of hardware virtualization, i.e., you need a CPU that supports hardware virtualization, e.g. Intel VT or AMD-V.

by falko 2009-03-17 08:04 kvm · debian · lenny · virtualization · virtual machine · lvm · hvm

http://www.howtoforge.com/virtualization-with-kvm-on-a-debian-lenny-server - cached - mail it - history

Using ATA Over Ethernet (AoE) On Debian Lenny (Initiator And Target) | HowtoForge - Linux Howtos and Tutorials

This guide explains how you can set up an AoE target and an AoE initiator (client), both running Debian Lenny. AoE stands for "ATA over Ethernet" and is a storage area network (SAN) protocol which allows AoE initiators to use storage devices on the (remote) AoE target using normal ethernet cabling. "Remote" in this case means "inside the same LAN" because AoE is not routable outside a LAN (this is a major difference compared to iSCSI). To the AoE initiator, the remote storage looks like a normal, locally-attached hard drive.

by falko 2009-03-15 08:58 ata over ethernet · aoe · debian · lenny · san · iscsi

http://www.howtoforge.com/using-ata-over-ethernet-aoe-on-debian-lenny-initiator-and-target - cached - mail it - history

How To Run Fully-Virtualized Guests (HVM) With Xen 3.2 On Debian Lenny (x86_64) | HowtoForge - Linux Howtos and Tutorials

This guide explains how you can set up fully-virtualized guests (HVM) with Xen 3.2 on a Debian Lenny x86_64 host system. HVM stands for HardwareVirtualMachine; to set up such guests, you need a CPU that supports hardware virtualization (Intel VT or AMD-V). Hardware virtualization allows you to install unmodified guest systems (in contrast to paravirtualization where the guest kernel needs to be modified); that way you cannot only virtualize OpenSource operating systems like Linux and BSD, but also closed-source operating systems like Windows where you cannot modify the kernel.

by falko 2009-03-08 09:37 xen · hvm · debian · lenny · intel vt · amd-v · hardware virtualization · virtualization · virtual machine

http://www.howtoforge.com/how-to-run-fully-virtualized-guests-hvm-with-xen-3.2-on-debian-lenny-x86_64 - cached - mail it - history

Virtual Users And Domains With Postfix, Courier, MySQL And SquirrelMail (Debian Lenny) | HowtoForge - Linux Howtos and Tutorials

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.

by falko 2009-03-05 07:44 postfix · mysql · courier · squirrelmail · debian · lenny · spamassassin · clamav · amavisd

http://www.howtoforge.com/virtual-users-domains-postfix-courier-mysql-squirrelmail-debian-lenny - cached - mail it - history

Xen Cluster Management With Ganeti On Debian Lenny | HowtoForge - Linux Howtos and Tutorials

Ganeti is a cluster virtualization management system based on Xen. In this tutorial I will explain how to create one virtual Xen machine (called an instance) on a cluster of two physical nodes, and how to manage and failover this instance between the two physical nodes.

by falko 2009-03-03 07:57 ganeti · xen · cluster · debian · lenny · virtualization · virtual machine · high-availability

http://www.howtoforge.com/xen-cluster-management-with-ganeti-on-debian-lenny - cached - mail it - history

Installing And Using OpenVZ On Debian Lenny (AMD64) | HowtoForge - Linux Howtos and Tutorials

In this HowTo I will describe how to prepare a Debian Lenny server for OpenVZ. With OpenVZ you can create multiple Virtual Private Servers (VPS) on the same hardware, similar to Xen and the Linux Vserver project. OpenVZ is the open-source branch of Virtuozzo, a commercial virtualization solution used by many providers that offer virtual servers. The OpenVZ kernel patch is licensed under the GPL license, and the user-level tools are under the QPL license.

by falko 2009-03-01 08:07 openvz · debian · lenny · virtualization · virtual machine

http://www.howtoforge.com/installing-and-using-openvz-on-debian-lenny-amd64 - cached - mail it - history

Groupware Server With Group-Office, Postfix, Dovecot And SpamAssassin On Debian Lenny (5.0) | HowtoForge - Linux Howtos and Tutorials

In this howto I will explain how you can set up a groupware server using the Debian Linux operating system, Group-Office for managing the mailboxes and groupware functions like e-mail, shared calendars, file sharing etc., Postfix with virtual accounts in MySQL, Dovecot IMAP, SpamAssassin spam filter, and a vacation perl script that will handle out-of-office replies.

by falko 2009-02-26 08:10 groupware · group-office · postfix · dovecot · spamassassin · autoresponder · debian · lenny · mysql

http://www.howtoforge.com/groupware-server-with-group-office-postfix-dovecot-spamassassin-on-debian-lenny - cached - mail it - history

The Perfect Desktop - Debian Lenny | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how you can set up a Debian Lenny 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.

by falko 2009-02-22 07:52 debian · lenny · desktop · gnome · skype · googleearth · vmware · adobe · codecs · flash

http://www.howtoforge.com/the-perfect-desktop-debian-lenny - cached - mail it - history

The Perfect Server - Debian Lenny (Debian 5.0) [ISPConfig 2] | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how to set up a Debian Lenny (Debian 5.0) 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).

by falko 2009-02-19 07:26 debian · lenny · server · lamp · apache · php · mysql · postfix · courier · bind · ispconfig · python · ruby · webalizer · proftpd

http://www.howtoforge.com/perfect-server-debian-lenny-ispconfig2 - cached - mail it - history

Virtualization With Xen 3.3.1 On Debian Etch | HowtoForge - Linux Howtos and Tutorials

This tutorial provides step-by-step instructions on how to install Xen 3.3.1 on a Debian Etch (4.0) system. Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware.

by falko 2009-02-12 07:45 xen · debian · etch · virtualization · virtual machine · dom0 · domu · paravirtualization

http://www.howtoforge.com/virtualization-with-xen-3.3.1-on-debian-etch - cached - mail it - history

Virtualization With Xen On Debian Lenny (AMD64) | HowtoForge - Linux Howtos and Tutorials

This tutorial provides step-by-step instructions on how to install Xen on a Debian Lenny (5.0) system (AMD64). Xen lets you create guest operating systems (*nix operating systems like Linux and FreeBSD), so called "virtual machines" or domUs, under a host operating system (dom0). Using Xen you can separate your applications into different virtual machines that are totally independent from each other (e.g. a virtual machine for a mail server, a virtual machine for a high-traffic web site, another virtual machine that serves your customers' web sites, a virtual machine for DNS, etc.), but still use the same hardware. This saves money, and what is even more important, it's more secure. If the virtual machine of your DNS server gets hacked, it has no effect on your other virtual machines. Plus, you can move virtual machines from one Xen server to the next one.

by falko 2009-02-08 08:24 xen · debian · lenny · virtualization · virtual machine · dom0 · domu · paravirtualization

http://www.howtoforge.com/virtualization-with-xen-on-debian-lenny-amd64 - cached - mail it - history

How To Set Up Apache2 With mod_fcgid And PHP5 On Debian Etch | HowtoForge - Linux Howtos and Tutorials

This tutorial describes how you can install Apache2 with mod_fcgid and PHP5 on Debian Etch. mod_fcgid is a compatible alternative to the older mod_fastcgi. It lets you execute PHP scripts with the permissions of their owners instead of the Apache user.

by falko 2009-02-03 04:53 apache · mod_fcgid · fastcgi · cgi · php · php5 · debian

http://www.howtoforge.com/how-to-set-up-apache2-with-mod_fcgid-and-php5-on-debian-etch - cached - mail it - history

Caching With Apache's mod_cache On Debian Etch | HowtoForge - Linux Howtos and Tutorials

This article explains how you can cache your web site contents with Apache's mod_cache 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).

by falko 2009-01-27 07:44 apache · mod_cache · caching · debian

http://www.howtoforge.com/caching-with-apache-mod_cache-on-debian-etch - cached - mail it - history

Installing PowerDNS (With MySQL Backend) And Poweradmin On Debian Etch | HowtoForge - Linux Howtos and Tutorials

This article shows how you can install the PowerDNS nameserver (with MySQL backend) and the Poweradmin control panel for PowerDNS on a Debian Etch system. PowerDNS is a high-performance, authoritative-only nameserver - in the setup described here it will read the DNS records from a MySQL database (similar to MyDNS), although other backends such as PostgreSQL are supported as well. Poweradmin is a web-based control panel for PowerDNS.

by falko 2009-01-20 07:01 powerdns · dns · nameserver · mysql · poweradmin · debian

http://www.howtoforge.com/installing-powerdns-with-mysql-backend-and-poweradmin-on-debian-etch - cached - mail it - history

Setting Up A High-Availability Load Balancer (With Failover and Session Support) With Perlbal/Heartbeat On Debian Etch | HowtoForge - Linux Howtos and Tutorials

This article explains how to set up a two-node load balancer in an active/passive configuration with Perlbal and heartbeat 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 heartbeat, and if the master fails, the slave becomes the master, which means the users will not notice any disruption of the service. Perlbal is session-aware, which means you can use it with any web application that makes use of sessions (such as forums, shopping carts, etc.).

by falko 2009-01-13 07:21 perlbal · heartbeat · high-availability · ha · failover · debian · load balancer

http://www.howtoforge.com/setting-up-a-high-availability-load-balancer-with-perlbal-heartbeat-on-debian-etch - cached - mail it - history

Setting Up A High-Availability Load Balancer With HAProxy/Wackamole/Spread On Debian Etch | HowtoForge - Linux Howtos and Tutorials

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.).

by falko 2009-01-06 07:48 haproxy · wackamole · spread · debian · load balancer · high-availability · ha · ip failover

http://www.howtoforge.com/setting-up-a-high-availability-load-balancer-with-haproxy-wackamole-spread-on-debian-etch - cached - mail it - history

How To Set Up A Caching Reverse Proxy With Squid 2.6 On Debian Etch | HowtoForge - Linux Howtos and Tutorials

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).

by falko 2008-12-28 05:58 squid · cache · reverse proxy · debian · web server

http://www.howtoforge.com/how-to-set-up-a-caching-reverse-proxy-with-squid-2.6-on-debian-etch - cached - mail it - history

Installing Nginx With PHP5 And MySQL Support On Debian Etch | HowtoForge - Linux Howtos and Tutorials

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 Debian Etch server with PHP5 support (through FastCGI) and MySQL support.

by falko 2008-12-07 08:28 nginx · php5 · php · mysql · debian · webserver · fastcgi

http://www.howtoforge.com/installing-nginx-with-php5-and-mysql-support-on-debian-etch - cached - mail it - history

Setting Up Master-Master Replication On Four Nodes With MySQL 5 On Debian Etch | HowtoForge - Linux Howtos and Tutorials

This tutorial explains how you can set up MySQL master-master replication on four MySQL nodes (running on Debian Etch). The difference to a two node master-master replication is that if you have more than two nodes, the replication goes in a circle, i.e., with four nodes, the replication goes from node1 to node2, from node2 to node3, from node3 to node4, and from node4 to node1.

by falko 2008-11-20 07:47 mysql · replication · master-master replication · debian

http://www.howtoforge.com/setting-up-master-master-replication-on-four-nodes-with-mysql-5-on-debian-etch - cached - mail it - history

Using IPv6 On Debian Etch | HowtoForge - Linux Howtos and Tutorials

This document describes how you can configure a Debian Etch system for IPv6 so that a) it can connect to other IPv6 hosts and b) other IPv6 hosts can connect to it. IPv6 should become more important in the future as recent estimates assume that there will be no more IPv4 addresses left by 2010 or 2011. Therefore it's time time to learn IPv6.

by falko 2008-11-06 07:04 ipv6 · debian · etch

http://www.howtoforge.com/using-ipv6-on-debian-etch - cached - mail it - history

Preventing MySQL Injection Attacks With GreenSQL On Debian Etch | HowtoForge - Linux Howtos and Tutorials

GreenSQL (or greensql-fw) is a firewall for MySQL databases that filters SQL injection attacks. It works as a reverse proxy, i.e., it takes the SQL queries, checks them, passes them on to the MySQL database and delivers back the result from the MySQL database. It comes with a web interface (called greensql-console) so that you can manage GreenSQL through a web browser. This guide shows how you can install GreenSQL and its web interface on a Debian Etch server.

by falko 2008-10-28 09:13 greensql · mysql · injection · sql · debian

http://www.howtoforge.com/preventing-mysql-injection-attacks-with-greensql-on-debian-etch - cached - mail it - history

Installing Joomla 1.5.6 On A Lighttpd Web Server (Debian Etch) | HowtoForge - Linux Howtos and Tutorials

This guide explains how you can install Joomla 1.5.6 on a lighttpd web server on Debian Etch. Joomla comes with an .htaccess file with mod_rewrite rules (for Apache) (to enable search-engine friendly URLs) that do not work on lighttpd. Fortunately Joomla has a built-in method to make search-engine friendly URLs work on lighttpd as well.

by falko 2008-09-16 07:10 joomla · lighttpd · debian

http://www.howtoforge.com/installing-joomla-1.5.6-on-a-lighttpd-webserver-debian-etch - cached - mail it - history

Installing Drupal 6.4 On A Lighttpd Web Server (Debian Etch) | HowtoForge - Linux Howtos and Tutorials

This guide explains how you can install Drupal 6.4 on a lighttpd web server on Debian Etch. Drupal comes with an .htaccess file with mod_rewrite rules (for Apache) that do not work on lighttpd. Without this .htaccess file it is not possible to have clean URLs in your Drupal installation. Fortunately there is a way to make lighttpd behave as if it could read the .htaccess file.

by falko 2008-09-14 11:21 drupal · lighttpd · debian · .htaccess

http://www.howtoforge.com/installing-drupal-6.4-on-a-lighttpd-webserver-debian-etch - cached - mail it - history

Installing memcached And The PHP5 memcache Module On Debian Etch (Apache2) | HowtoForge - Linux Howtos and Tutorials

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.

by falko 2008-09-11 07:08 memcached · memcache · php · debian · apache · cache · memory

http://www.howtoforge.com/installing-memcached-and-the-php5-memcache-module-on-debian-etch-apache2 - cached - mail it - history

Triggering Commands On File/Directory Changes With Incron | HowtoForge - Linux Howtos and Tutorials

This guide shows how you can install and use incron on a Debian Etch system. Incron is similar to cron, but instead of running commands based on time, it can trigger commands when file or directory events occur (e.g. a file modification, changes of permissions, etc.).

by falko 2008-09-02 05:45 incron · cron · debian

http://www.howtoforge.com/triggering-commands-on-file-or-directory-changes-with-incron - cached - mail it - history

Running Vhosts Under Separate UIDs/GIDs With Apache2 mpm-peruser On Debian Etch | HowtoForge - Linux Howtos and Tutorials

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.

by falko 2008-08-24 07:34 apache2-mpm-peruser · mpm-peruser · apache · apache2 · debian · metuxmpm

http://www.howtoforge.com/running-vhosts-under-separate-uids-gids-with-apache2-mpm-peruser-on-debian-etch - cached - mail it - history

Creating Advanced MySQL-Based Virtual Hosts On Lighttpd (Debian Etch) | HowtoForge - Linux Howtos and Tutorials

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.

by falko 2008-08-19 06:48 lighttpd · vhosts · mysql · debian

http://www.howtoforge.com/creating-advanced-mysql-based-vhosts-on-lighttpd-debian-etch - cached - mail it - history

How To Set Up WebDAV With Lighttpd On Debian Etch | HowtoForge - Linux Howtos and Tutorials

This guide explains how to set up WebDAV with lighttpd on a Debian Etch server. WebDAV stands for Web-based Distributed Authoring and Versioning and is a set of extensions to the HTTP protocol that allow users to directly edit files on the lighttpd server so that they do not need to be downloaded/uploaded via FTP. Of course, WebDAV can also be used to upload and download files.

by falko 2008-08-10 05:17 webdav · lighttpd · debian · etch

http://www.howtoforge.com/setting-up-webdav-with-lighttpd-debian-etch - cached - mail it - history

Creating Simple Virtual Hosts With mod_mysql_vhost On Lighttpd (Debian Etch) | HowtoForge - Linux Howtos and Tutorials

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.

by falko 2008-08-07 05:12 mod_mysql_vhost · lighttpd · mysql · debian

http://www.howtoforge.com/creating-simple-vhosts-with-mod_mysql_vhost-on-lighttpd-debian-etch - cached - mail it - history

How To Patch BIND9 Against DNS Cache Poisoning On Debian Etch | HowtoForge - Linux Howtos and Tutorials

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.

by falko 2008-07-29 05:53 bind · dns · cache · cache poisoning · vulnerability · patch · debian · centos · fedora

http://www.howtoforge.com/how-to-patch-bind-to-avoid-cache-poisoning-debian-etch - cached - mail it - history

How To Install Django On Debian Etch (Apache2/mod_python) | HowtoForge - Linux Howtos and Tutorials

This tutorial explains how to install Django on a Debian Etch server. Django is a web framework that allows to develop Python web applications quickly with as much automation as possible. I will use it with Apache2 and mod_python in this guide.

by falko 2008-07-24 06:18 django · python · mod_python · apache · debian

http://www.howtoforge.com/installing-django-on-debian-etch-apache2-mod_python - cached - mail it - history

Embedding Python In Apache2 With mod_python (Debian/Ubuntu, Fedora/CentOS, Mandriva, OpenSUSE) | HowtoForge - Linux Howtos and Tutorials

This tutorial shows how to install and use mod_python on various distributions (Debian/Ubuntu, Fedora/CentOS, Mandriva, OpenSUSE) with Apache2. mod_python is an Apache module that embeds the Python interpreter within the server. It allows you to write web-based applications in Python that will run many times faster than traditional CGI and will have access to advanced features such as ability to retain database connections and other data between hits and access to Apache internals.

by falko 2008-07-22 05:44 python · mod_python · apache · fedora · debian · ubuntu · centos · opensuse · mandriva

http://www.howtoforge.com/embedding-python-in-apache2-with-mod_python-debian-ubuntu-fedora-centos-mandriva-opensuse - cached - mail it - history