How to enable root login in Ubuntu 7/8

If you are having trouble looking into root on Ubuntu 7 or 8, here is a quick way to enable root access..

# sudo passwd root

# sudo passwd -u root

Disable Root Login:

# sudo passwd -l root

Common mistakes to avoid when you’re installing Linux software

#1: Installing from source when your system is primarily an .rpm or .deb system

Many new Linux users don’t understand that both rpm and apt (or dkpg) keep track of everything installed on the system. However, those systems (rpm, apt, and dkpg) can keep track only of packages they install. So when you find that obscure package that comes only in source and you compile it yourself, your package management system will not know what to do with it. Instead, create either an .rpm or .deb file from the source and install the package with the package management system so that system will be aware of everything you have installed…..
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DNS Installation and Setup using BIND9

Introduction

This HOWTO will assist you in getting a Domain Name Server (DNS) up and running using BIND9 on Debian Etch. When setting up a DNS server it is common practise to use two separate DNS servers for a domain as you are required to have at least two DNS servers running for DNS to work correctly. If one breaks, the other can continue to serve your domain.

However, when I setup my DNS system I did not have the resources on hand to use two different servers for DNS so the setup below will configure one server to run both nameservers. It’s not an ideal solution and is definitely not a best-practise solution but one can only work with what you have.

In this HOWTO I will use the fictional domain “example.com”. The nameservers will use 192.168.254.1 and 192.168.254.2 as their IP addresses. Both the domain and namerserver IPs need to be changed to reflect your server…..
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Install FFmpeg, FFmpeg-PHP, Lame, Libogg, Libvorbis, FLVtool2, Mplayer, Mencoder, AMR on Debian

Introduction

The following HOWTO will show you exactly how to install the following packages on a Debian Etch or Ubuntu 7.06 system:

* FFmpeg
* FFmpeg-PHP
* Mplayer + Mencoder
* flv2tool
* LAME MP3 Encoder
* AMR (for 3gp file conversions)
* Libogg
* Libvorbis

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Find and fix weak OpenSSL/OpenSSH keys

A recent vulnerability was found in the OpenSSL package as provided by Debian and Debian-based Linux distributions, such as Ubuntu, that broke the effectiveness of the OpenSSL PRNG (Predictable Random Number Generator). This vulnerability caused OpenSSL to generate weak keys for anything relying on OpenSSL, including SSL certificates, OpenSSH keys, and OpenVPN keys. Any OpenSSL-based key generated on a Debian-based system since September 2006 by the openssl, ssh-keygen, or openvpn –keygen commands are vulnerable to this issue….
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How do I install and use fonts in Linux?

Installing fonts in Ubuntu

Once you have your handy collection of True Type fonts, you are going to want to create a directory to hold them. Installing the fonts system-wide will give all users access to them. First, create a font directory in /usr/share/fonts/truetype. Call this directory newfonts. Issue the command sudo mkdir /usr/share/fonts/truetype/newfonts. You will have to enter your sudo password to complete this task.

Once this directory is created, place all your *ttf or *TTF files in the newfonts directory. With the fonts in place you will then need to issue the command fc-cache -f -v to make the system aware of the new fonts. Once this is done, the system knows about the new fonts and all the system users will have access to them.

If you want to make these fonts available only to specific users, then you will follow the same directions except you will add the fonts only to the users’ ~/.fonts directory. If the ~/.fonts directory doesn’t exist, create it with mkdir ~/.fonts (while logged into the specific users’ accounts). Now move (or copy) all of the *ttf and/or *TTF files into the new directory and run fc-cache -f -v to make the users’ accounts aware of the fonts.

If you have a single-user machine, go with the latter version……

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How to run .exe files on ubuntu linux

You just need to install a program which is called wine by writing the following command in your terminal

sudo apt-get install wine

then to run a .exe file you just need to be in the same directory where your program is located then write the following command in your terminal

wine your_exe_filename

If you need to know more about wine just use the man command after installing wine..

Change VSFTPD port

vsftpd (Very Secute FTP Daemon) is used by Fedora, Ubuntu, RHEL and other Linux based distros. sometimes you may have a need to change its default port on your server, Changing default can be a good ideia for security reasons….
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Binding IPs on Ubuntu Server

How To Bind IPs on Ubuntu Server….?

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