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Search results for Step-By-Step Configuration of NAT with iptables

Linux

Asterisk : Basic SOHO environment VoIP PABX configuration

Post date: October 30, 2010, 05:10 Category: Installing Views: 3392 Comments
Tutorial quote: Asterisk is a free telephony software. Iím posting here sample commented configuration files for reference purposes, hoping they will help you get kickstarted if needed.
Debian

Installing and Configuring Exim4

Post date: February 25, 2006, 12:02 Category: Network Views: 3952 Comments
Tutorial quote: Installion of Exim4 from the latest Debian GNU/Linux packages is easy. The installation is now based around debconf. If you are upgrading from a simple Exim3 configuration, you can use exim_convert4r4 to convert your configuration file to the new format. If you used the previous version of this guide, which covered Exim3, the conversion should succeed without incident. I intend to discuss configuration via debconf, including setting up local delivery to Maildir format, handling local domain email, and configuring smarthosting for outbound email.
Debian

Preventing Brute Force Attacks With BlockHosts On Debian Etch

Post date: September 30, 2007, 09:09 Category: Security Views: 4892 Comments
Tutorial quote: In this article I will show how to install and configure BlockHosts on a Debian Etch system. BlockHosts is a Python tool that observes login attempts to various services, e.g. SSH, FTP, etc., and if it finds failed login attempts again and again from the same IP address or host, it stops further login attempts from that IP address/host. By default, BlockHosts supports services that use TCP_WRAPPERS, such as SSH, i.e. services, that use /etc/hosts.allow or /etc/hosts.deny, but it can also block other services using iproute or iptables.
OSX

NSA Publically-Released OS X Secuirty Configuration (reload) Guide

Post date: October 21, 2006, 04:10 Category: Security Views: 6781 Comments
Tutorial quote: Apple Mac OS X
NSA has developed and distributed configuration guidance for Apple Operating Systems. This guidance can be used by US government and other entities as a security baseline.

RedHat

Getting back my GNOME desktop from the clutches of the GNOME configuration system

Post date: July 18, 2005, 22:07 Category: Desktop Views: 7204 Comments
Tutorial quote: My problem: as a user I managed to lock myself out of my GNOME desktop though a careless setting of Preferences-> Resolution.

In determining my solution I learned some key lessons about the GNOME configuration system.
Lintrack

Lintrack As A LAN Gateway And An OpenVPN Bridge

Post date: May 9, 2007, 22:05 Category: Installing Views: 7844 Comments
Tutorial quote: This tutorial will guide you through the installation and configuration of Lintrack, a GNU/Linux distribution specialized in networking tasks. We will give two LANs access to the internet along with DHCP and DNS cache servers, and then we will connect our networks using OpenVPN in bridging mode. You should be running all these in well under an hour, thanks to the unified configuration interface of Lintrack.
Ubuntu

How to Install and Configure DHCP Server in Ubuntu Server

Post date: December 22, 2008, 07:12 Category: Software Views: 6168 Comments
Tutorial quote: A DHCP Server assigns IP addresses to client computers. This is very often used in enterprise networks to reduce configuration efforts. All IP addresses of all computers are stored in a database that resides on a server machine.A DHCP server can provide configuration settings using two methods

Debian

WebDAV Configuration With Apache2 On Debian Etch

Post date: July 6, 2008, 16:07 Category: Network Views: 6349 Comments
Tutorial quote: Web-based Distributed Authoring and Versioning, or WebDAV, is a set of extensions to the Hypertext Transfer Protocol (HTTP) which allows users to collaboratively edit and manage files on remote World Wide Web servers.This tutorial will explain howto install webdav Configuration With Apache2 On Debian Etch.

SuSe

Using DSL with Linux

Post date: April 12, 2005, 18:04 Category: Hardware Views: 4364 Comments
Tutorial quote: The following tips will hopefully help give a well rounded view into the necessary settings and configuration that apply to most newer flavors. For older flavors using KDE or older versions of SuSe, you will need to install the PPPoE driver before configuration is possible. These drivers should be on your Linux flavor’s website.

You'll find that connectivity to your broadband service using almost all flavors of Linux is dependent on two things: what type of service you have purchased and correctly setting the IP and DNS configurations.
Linux

Upstream Provider Woes? Point the Ping of Blame

Post date: April 14, 2005, 12:04 Category: Network Views: 3138 Comments
Tutorial quote: Your users are complaining that "the Internet is, like, all slow." Users are always complaining, but you're seeing a lot of timeouts when you check mail, surf the Web, or try to log in for remote administration. Or even worse, latency is so bad that you keep getting killed all to heck in your favorite gory violent online multi-player game, so you know there is a problem. But there a lot of potential bottlenecks between your PC and the outside world, like your Internet gateway, proxy server, firewall, Internet service provider, and so forth, so where do you begin?

One of the best and most versatile network tools you can have is a notebook PC running Linux. This lets you plug in anywhere to run tests and find out what is going on. Make it a nothing-to-lose box--don't keep data on it so you can wipe and reinstall the operating system as necessary, because you want to be able to run tests outside of firewalls. Don't run any services. You can put a minimal iptables firewall on it, as there is no point in being totally exposed, but keep it simple. (Use MondoRescue to make a system snapshot for fast restores.)
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