Linux Ask!

Linux Ask! is a Q & A web site specific for Linux related questions. Questions are collected, answered and audited by experienced Linux users.

Dec 042010
 

Simple port forwarding using SSH

Answer:

Assume you are working at office, you want to browse the example.com securely, you can do so by using a computer at home (e.g. HOME_IP)to build a secure tunnel using ssh.

# sudo ssh -L 80:example.com:80 HOME_IP

Then in your browser, type http://localhost and you can view the example.com securely.

Aug 302010
 

Fix the warning of: Remote Host Identification Has Changed error and solution

Answer:

You might experience this error, especially when you are connecting to a remote Linux machine which has just got re-installed.

To solve this, enter the command:

# ssh-keygen -R 192.168.2.36

Where 192.168.2.36 is the IP you are connecting.

Jun 152010
 

Specify a port with the scp command

Answer:

If you want to use scp to copy file to remote machine, but that ssh server is listening at port other than 22, you can use the following command syntax.

# scp -P 6000 test.txt john@remoteserver:/home/john/

Please notes it is -P, not -p.