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Debian

Installing Dansguardian With Multi-Group Filtering & Squid With NTLM Auth (Debian Etch)

Post date: July 17, 2008, 10:07 Category: Installing Views: 4374 Comments
Tutorial quote: This how-to describes how to install and configure Dansguardian with multi-group filtering, Squid with NTLM auth, ipmasq, and dnsmasq to provide a full internet gateway solution for small to medium sized networks. This how-to requires two NICs in order to perform firewalling and transparent proxying.
Debian

Industrial-grade trouble ticketing system on Debian Etch

Post date: June 1, 2008, 21:06 Category: Software Views: 3097 Comments
Tutorial quote: RT is an industrial-grade trouble ticketing system. It lets a group of people intelligently and efficiently manage requests submitted by a community of users. RT is used by systems administrators,customer support staffs, NOCs, developers, and even marketing departments to track issues, outages,bugs, requests, and all kinds of other things at thousands of sites around the world.

Debian

Chrooted SSH/SFTP Tutorial (Debian Etch)

Post date: September 7, 2007, 22:09 Category: Security Views: 3951 Comments
Tutorial quote: This tutorial describes two ways how to give users chrooted SSH access. With this setup, you can give your users shell access without having to fear that they can see your whole system. Your users will be jailed in a specific directory which they will not be able to break out of. The users will also be able to use SFTP in their chroot jails.
Debian

Virtual Hosting With vsftpd And MySQL On Debian Etch

Post date: June 24, 2007, 23:06 Category: Installing Views: 3480 Comments
Tutorial quote: Vsftpd is one of the most secure and fastest FTP servers for Linux. Usually vsftpd is configured to work with system users. This document describes how to install a vsftpd 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.
Debian

Xen Cluster Management With Ganeti On Debian Etch

Post date: September 16, 2007, 21:09 Category: Miscellaneous Views: 3198 Comments
Tutorial quote: 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.
Debian

Postfix Monitoring With Mailgraph And pflogsumm On Debian Etch

Post date: June 26, 2007, 23:06 Category: Miscellaneous Views: 3810 Comments
Tutorial quote: This article describes how you can monitor your Postfix mailserver with the tools Mailgraph and pflogsumm. Mailgraph creates daily, weekly, monthly, and yearly graphs of sent, received, bounced, and rejected emails and also of spam and viruses, if SpamAssassin and ClamAV are integrated into Postfix (e.g. using amavisd-new). These graphs can be accessed with a browser, whereas pflogsumm (Postfix Log Entry Summarizer) can be used to send reports of Postfix activity per email.
Debian

Monitoring Multiple Systems With munin (Debian Etch)

Post date: March 6, 2008, 13:03 Category: Miscellaneous Views: 5753 Comments
Tutorial quote: In this article I will describe how you can monitor multiple systems with munin. munin produces nifty little graphics about nearly every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, eth0 traffic, etc.) without much configuration. I will install the munin client on all systems that are to be monitored (including the munin server itself); the munin clients will then report to the munin server.
Debian

Cloning Linux Systems With CloneZilla Server Edition (CloneZilla SE)

Post date: January 22, 2009, 12:01 Category: Miscellaneous Views: 31065 Comments
Tutorial quote: This tutorial shows how you can clone Linux systems with CloneZilla SE. This is useful for copying one Linux installation to multiple computers without losing much time, e.g. in a classroom, or also for creating an image-based backup of a system. I will install CloneZilla SE on a Debian Etch server in this tutorial. The systems that you want to clone can use whatever Linux distribution you prefer.
Debian

Virtual Hosting With PureFTPd And MySQL (Incl. Quota And Bandwidth Management) On Debian Etch

Post date: May 4, 2007, 23:05 Category: Installing Views: 3837 Comments
Tutorial quote: 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.
Debian

Retrieving Emails From Remote Servers With getmail (Debian Etch)

Post date: June 15, 2007, 22:06 Category: Software Views: 3382 Comments
Tutorial quote: Getmail is a program for retrieving emails from remote servers; it is very similar to fetchmail, but more flexible. For example, it can be configured to deliver mails directly to a Maildir or mbox mailbox without the need for an MTA such as Postfix, but of course it can also pipe the mails through an MTA if you want. Getmail can use so called filters such as SpamAssassin and ClamAV to scan the mails, and you can even tell getmail to delete mails on the original server only after a certain number of days.
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