≡ Menu


How do I shutdown remote Linux or UNIX system from MS-Windows system?
[click to continue…]

HowTo Install firefox-4.0.tar.bz2 in Linux

How do I install latest Firefox version 4.0 in Linux operating systems?
[click to continue…]

Mac OS x Restart Apache Web Server

How do I restart Apache web server under Mac OS X operating systems?
[click to continue…]

Ubuntu Linux: OpenSSH Change Welcome Login Message

How do I change Openssh welcome login message under Ubuntu Linux?
[click to continue…]

FreeBSD Install gnupg Cryptographic Software

Q. How do I install gnugp security Cryptographic software on my FreeBSD 6.x server from a shell prompt over ssh session?
[click to continue…]

Howto: Update firefox on Linux

Q. My Firefox version is and I'd like to update the same to latest version. How do I upgrade my Firefox on Linux?

A. You can easily upgrade firefox on Linux.

Please note that installing Firefox 2 will overwrite your existing installation of Firefox. You won't lose any of your bookmarks or browsing history, but some of your extensions and other add-ons might not work until updates for them are made available.

Update Firefox on Ubuntu / Debian Linux

You can use APT package handling utility i.e. apt-get command. You can also use a GUI package tool called Update Manager:
Just type the following two commands at terminal:
$ sudo apt-get update
$ sudo apt-get install firefox

You can also use GUI tool: Click on System > Administration > Update Manger > Click on Check button see for updates

Update Firefox on Fedora / Redhat / CentOS Linux

Use yum tool or gui tool for the same purpose:
# yum update
# yum update firefox

Update firefox from official Mozilla site

You can download firefox from official website. Just follow these firefox installation instructions.

Debian / Ubuntu Linux Setting a Default Gateway

Q. How do I setup a default gateway on Debian or Ubuntu Linux? My router IP is and I'd like to setup this as a default gateway for Debian Linux.

A. You can use command line tool such as
a] ip command - show / manipulate routing, devices, policy routing and tunnels

b] route command - show / manipulate the IP routing table

c] Save routing information to a configuration file so that after reboot you get same default gateway.

ip command to set a default router to

Login as the root and type:
# ip route add default via
$ sudo ip route add default via

route command to set a default router to

Login as the root and type:
# route add default gw
$ sudo route add default gw

Save routing information to a configuration file /etc/network/interfaces

Open /etc/network/interfaces file
# vi /etc/network/interfaces
$ sudo vi /etc/network/interfaces
Find eth0 or desired network interface and add following option
Save and close the file. Restart networking:
# /etc/init.d/networking restart
$ sudo /etc/init.d/networking restart