How to Install Openfire in Debian Etch

What is Openfire

Openfire formerly known as Wildfire is a popular jabber/XMPP server written in Java and dual-licensed under both a proprietary license and the GNU General Public License. Openfire is easy to setup and administer, administration is done through a web interface, moreover Openfire offers numerous features, there are also several plugins available in Openfire to extend its functionalities. You can check the list of its features here and plugins here.

How to Install and Configure Net SNMP in Linux

Cacti and other Network monitoring tools requires SNMP (Simple Network Management Protocol) to monitor your server's network bandwidth, cpu loads, total ammounts of RAM and Hard Drive etc. To monitor your Linux server, you must have net-snmp installed.

Installing Net-SNMP on Debian or Ubuntu

For Debian, Ubuntu and other Debian-based distro, type this command:

apt-get install snmpd

Edit the /etc/default/snmpd file

vi /etc/default/snmpd

find this line

How to install Cacti in Debian Etch

What is Cacti?

cacti logo

How to setup a LAN DNS server using Bind9 under Debian Etch and Ubuntu 8.04

This is a step by step tutorial on how to install and configure DNS server for your LAN using bind9. The DNS server will provide caching and name resolution as well as reverse name resolution for your local network. In this tutorial, we will use the domain "debian.lan" and this will be the domain of your local network. The domain "debian.lan is not accessible from the internet; its private ip address is "".

How to Select default audio device in Ubuntu 8.04

I am using plantronics USB headset connected to a laptop with Ubuntu Hardy installed. I can play audio through USB headset using totem movie player after it was changed in System > Preferences > Sound. The problem is Mozilla Firefox is not playing audio through USB headset. Firefox can play audio through the laptop speakers but the sound sucks.

To fix this problem, we need to tell alsa to set the USB headset as the default sound card.

asoundconf list

Here are the list of the sound cards present in the system.

How to Install php5 and mysql-server 5 in CentOS 4

Enable centosplus repo to install php5 and mysql 5

yum enablerepo=centosplus install php php-mysql mysql mysql-server

How to Install Gnome/KDE Desktop in Debian Sarge

There are two available X Window system in Debian Sarge.

Using XFree86

Run this command in the console to install XFree86:

apt-get update
apt-get install xserver-xfree86 xbase-clients xfonts-base xterm

or you can run this command

apt-get install x-window-system

How to Setup Transparent Proxy and Content Filtering using Squid and Dansguardian in Debian Etch

This guide will walk through the setup and installation of Debian GNU/Linux and Squid proxy. Optionally, DansGuardian may be used in addition to provide URL blacklisting and content filtering. This guide will also work in CentOS, Ubuntu Dapper and later versions of Ubuntu.

The setup process contains the following steps:

How to Configure your Debian Etch or Ubuntu 8.04 box as an Internet Gateway/Router using IP Masquerading

This is a step by step tutorial how to make an Internet Gateway using Debian Etch or Ubuntu 8.04 LTS machine.

1. Configure your NIC

Add two network cards to your pc and install Debian or Ubuntu (I will prefer Debian Etch or Ubuntu 8.04 LTS). Configure the ip address of your network cards.

vi /etc/network/interfaces

Your network card configuration should be look like this:

How to Configure your CentOS 4 box as an Internet Gateway/Router using IP Masquerading

What is IP Masquerading?

IP Masquerade is a form of Network Address Translation or NAT which NAT allows internally connected computers that do not have one or more registered Internet IP addresses to communicate to the Internet via the Linux server's Internet IP address. The software interface which enables one to configure the kernel for IP masquerading is iptables.

To configure IP Masquerading, you need to have two LAN cards, a PC with CentOS 4 Linux installed.
Install the LAN cards and configure the IP address of your public and private network.

1. Configure the IP address of your public network, it should be similar like this one.

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