setup default gateway with a route command

route command show and/or manipulate the IP routing table under Linux and UNIX oses.
Route manipulates the kernel’s IP routing tables. Its primary use is to set up static routes to specific hosts or networks via an interface after it has been configured with the ifconfig program. When the add or del options are used, route modifies the routing tables. Without these options, route displays the current contents of the routing tables.

Display default route
Following three-command display the current routing table:

1. # route
2. $ /sbin/route
3. $ /sbin/route -n

use -n option, to display numerical addresses instead of trying to determine symbolic host names (via dns or /etc/hosts file). This is useful if you are trying to determine why the route to your nameserver has vanished.

Add / setup a new route
The syntax is as follows:

route add default gw {IP-ADDRESS} {INTERFACE-NAME}

Where,
IP-ADDRESS: Specify router IP address
INTERFACE-NAME: Specify interface name such as eth0

For example if your router IP address is 192.168.1.254 type the following command as the root

# route add default gw 192.168.1.254 eth0

OR use hostname such as dsl-router:

# route add default gw dsl-router eth0

Recover your sudoers file .......the mishandled one... ;)

you can use this commands to recover your sudoers file..

# vim -r /etc/sudoers

or

recover -r /etc/sudoers

Yum Installation for php, mysql and apache on linux machine

This command is to install php, mysql and apache on linux machine

# yum -y install httpd php mysql mysql-server php-mysql

Enjoy Linux!!

Backup and Restore Mysql data using Linux commands.

Backup and Restore Mysql data using Linux commands.The steps includes:
A)Backup:

1.Connect to server
2.Create a Directory where you would like to backup your data(like /bak).
3.using shell prompt(terminal) to to the dir(/bak)
4.use the following command to backup the data:

mysqldump -u username -ppassword dbname > filename.sql

please note there shouldn't be space between -p and password.

B)Restore:

1. Open SSh file browser
2. upload dump file somewhere (any directory)
3. Open SSH Secure shell client with your SSH uid and password

$mysql -u dbuid -ppass (Please note that there is no space between -p
and password)
mysql>use dbname
mysql>source /home/pinky/pairdum.sql (location of the dump file)


* for any help use help command

Pinky's Linux Learnings

Pinky's Linux Learnings

Hello Friends,

This blog is dedicated to my learnings in Linux....MyLinuxWiki...says....myLinuxWikiPadia....

that is 'What I Know Is.'...


So lets start with learnings...u can also post here what all u know...and would like to share amongst all our linux friends....!!