How to enable(open) daytime service port in Ubuntu 12.04

For enabling daytime server port in Ubuntu 12.04(or prior version) , you need to edit /etc/xinetd/daytime file.

To do this we need to follow these steps

1.check whether /etc/xinetd.d/daytime file exists or not. if exists goto step 3, if not goto step 2

2.Install xinetd by using this command

#apt-get install xinetd

or

#sudo apt-get install xinetd

3.Then edit the config file in /etc/xinetd.d

#vim /etc/xinetd.d/daytime

in this file change disabe = no in tcp section (or if u want in udp section)

 4.then execute command

#invoke-rc.d xinetd reload

Note: you should be in sudo mode inorder to do all these things.

Dont know How to go sudo mode? Ok

Open Terminal

type $sudo -s

then enter password. Its done!!!