Tuts4Tech

IPTables and Bashrc Aliases

We all know IPTables can be difficult. By adding the following lines to your ~/.bashrc you can simplify the tasks of blocking packets from a certian ip. First your going to need to install IPTables: Gentoo: emerge iptables   (Must be  Root to use/install iptables) Ubuntu/Debian: sudo apt-get install iptables Then edit your .bashrc file and add the following alias blockedips="iptables [...]

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Disabling IPV6 on Debian

If you don't use ivp6 for anything and your ISP doesn't support it theres not much of a need to have it enabled. To disable it we need to edit /etc/modprobe.d/aliases nano /etc/modprobe.d/aliases By default you will have the following line alias net-pf-10 ipv6 Replace it with the following alias net-pf-10 off alias ipv6 off You can now remove all the ipv6 [...]

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Setting up a DNS Server for your LAN Network

This tutorial will show you how to configure bind9 on debian to be a dns server for your LAN network. Install bind9 and some DNS utilities apt-get install bind9 dnsutils Set your systems hostname echo "server.home.local" > /etc/hostname then edit /etc/hosts so it looks like this 127.0.0.1 localhost.localdomain localhost 192.168.1.2 [...]

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Making a Network Diagram

Lovely Charts is a free web-base program that will allow you to easily create flow charts, site maps, network diagrams, and other visualizations with a simple drag-and-drop interface. When finished making your diagram you can pick to export it as a jpg or png image. Here is a sample of my network:

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