Go back to fronty page View most popular entries View latest additions Submit tutorials to UnixTutorials.info
UnixTutorials logo

Search results for Automating new Debian installations with preseeding

Unix+clones

How To Look Like A UNIX Guru

Post date: October 30, 2006, 02:10 Category: Miscellaneous Views: 6417 Comments
Tutorial quote: UNIX is an extremely popular platform for deploying server software partly because of its security and stability, but also because it has a rich set of command line and scripting tools. Programmers use these tools for manipulating the file system, processing log files, and generally automating as much as possible.

If you want to be a serious server developer, you will need to have a certain facility with a number of UNIX tools; about 15. You will start to see similarities among them, particularly regular expressions, and soon you will feel very comfortable. Combining the simple commands, you can build very powerful tools very quickly--much faster than you could build the equivalent functionality in C or Java, for example.

This lecture takes you through the basic commands and then shows you how to combine them in simple patterns or idioms to provide sophisticated functionality like histogramming. This lecture assumes you know what a shell is and that you have some basic familiarity with UNIX.
Linux

Automating the Login Script

Post date: April 17, 2005, 10:04 Category: Miscellaneous Views: 3170 Comments
Tutorial quote: In a perfect world, you could spend a few weeks creating a system and the result would be a system that never required manual maintenance or modifications. Whether this ideal will ever be achieved is debatable, but it definitely won't happen in the near future. In the meantime, we still have to do things manually, even if only once in a while. When I must do things manually, I'm not usually happy about it. In fact, it usually means that there has been an emergency, so other people aren't happy about it either. In times like this, it is nice to have a consistent and efficient user interface on every machine. The information and examples presented in this article assume that you are using the bash shell. However, you can modify all of the scripts so that they work in other shells. In some cases, they might even work unmodified (like in the standard Bourne Shell [sh]). Other shells will also work, but they might have different methods for changing the prompt and creating command aliases. The principles in this article should be relatively easy to adapt to the shell of your choice.
OpenBSD

Failover Firewalls with OpenBSD and CARP

Post date: April 28, 2005, 02:04 Category: Network Views: 8722 Comments
Tutorial quote: Firewalls are a required component in commercial and residential computer networks. For many installations, the firewall is a single point of failure between client systems and external resources. It can also become a liability when hardware or applications fail, leaving potential customers unable to reach your servers. A properly designed and executed failover configuration for your primary firewall will address many of these concerns. This article introduces a proven method for installing redundant stateful firewalls using native OpenBSD features.
eBox

Using eBox As A Gateway: Firewall, Traffic Shaping, HTTP Proxy And More

Post date: June 11, 2010, 12:06 Category: Installing Views: 6884 Comments
Tutorial quote: eBox Platform is the Linux small business server that allows you to manage all your network services like firewall, DHCP, DNS, VPN, proxy, IDS, mail, file and printer sharing, VoIP, IM and much more. These functionalities are tightly integrated, automating most tasks, avoiding mistakes and saving time for system administrators. This article will show you step by step how to use eBox as a Gateway, featuring network configuration, load balancing between two Internet connections with WAN failover and multigateway rules for policy routing, traffic shaping, DHCP and DNS cache for the LAN network and HTTP proxy with different content filtering policies and antivirus.
Debian

Securing Debian Manual

Post date: January 1, 2008, 13:01 Category: Security Views: 4378 Comments
Tutorial quote: This document describes security in the Debian project and in the Debian operating system. Starting with the process of securing and hardening the default Debian GNU/Linux distribution installation, it also covers some of the common tasks to set up a secure network environment using Debian GNU/Linux, gives additional information on the security tools available and talks about how security is enforced in Debian by the security and audit team.
Ubuntu

How To Upgrade Ubuntu 11.04 To 11.10 (Oneiric Ocelot) (Desktop & Server)

Post date: October 14, 2011, 07:10 Category: Miscellaneous Views: 4572 Comments
Tutorial quote: The new Ubuntu 11.10 (Oneiric Ocelot) has just been released. This guide shows how you can upgrade your Ubuntu 11.04 desktop and server installations to Ubuntu 11.10.
Ubuntu

How To Upgrade Ubuntu 10.04 To 10.10 (Maverick Meerkat) (Desktop & Server)

Post date: October 12, 2010, 11:10 Category: Miscellaneous Views: 3611 Comments
Tutorial quote: The new Ubuntu 10.10 (Maverick Meerkat) has just been released. This guide shows how you can upgrade your Ubuntu 10.04 desktop and server installations to Ubuntu 10.10.
Debian

Rescuing systems using the Debian snapshot server

Post date: September 18, 2006, 14:09 Category: System Views: 5945 Comments
Tutorial quote: One of the unofficial Debian project resources which doesn't get the attention it deserves is the Debian Snapshot site. The site contains a mirror of old Debian packages, which can be very useful for system recovery.

In most normal cases you won't ever need to use it, unless you're wanting to compare two different package versions to see changes, or do other non-standard things. However when you do need to use it you'll learn what a big lifesaver it is!

The biggest use for the site, for me, has been for recovering from broken package updates. Whilst these are rare in the Debian Stable and Testing releases they can be an issue when running Debian unstable.
Debian

Installing Debian Etch From A Windows System With

Post date: September 27, 2007, 10:09 Category: Installing Views: 3798 Comments
Tutorial quote: Debian-Installer Loader is a Debian Etch installer for Windows which adds an entry to the boot menu that allows you to start the Debian installation. Unlike the Ubuntu installation with Wubi, real Debian partitions are created during the installation. In the end, you have a dual-boot system (Windows/Debian).
Linux

How To Implement SPF In Postfix

Post date: February 25, 2007, 21:02 Category: Miscellaneous Views: 5455 Comments
Tutorial quote: This tutorial shows how to implement SPF (Sender Policy Framework) in a Postfix 2.x installation. The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery. There are lots of SPF extensions and patches available for Postfix, but most require that you recompile Postfix. Therefore we will install the postfix-policyd-spf-perl package from openspf.org which is a Perl package and can be implemented in existing Postfix installations (no Postfix compilation required).
Web-based applications and online marketing solutions - LumoLink