SSH for Server Administration

Most system administrators soon find that working at the command line is the best way to work, for several reasons:

* Low bandwidth
* Ubiquity
* Scripting

In this article, I’ll describe ways to make use of SSH for fast, easy access to multiple systems with good security.

Setting Up PuTTY on a Windows Workstation

First, get PuTTY. You can download it from http://www.chiark.greenend.org.uk/~sgtatham/putty/ in the form of a zip file or as a Windows installer. At the time of writing, the latest release is version 0.60, and that is what was used in the screenshots.

You can install PuTTY by running the installer, or by unzipping the zip file to C:\Program FIles\putty.

Connecting to a Remote Server

Start PuTTY from the Start Menu, a desktop icon or by using Start -> Run….

To set up a session, first insert the host name, and make sure the Port number is set to 22 and Connection type is SSH. Click on Window – Appearance and change the font if required for clarity. Now click on Connection. If your connection will be passing through a masquerading firewall (which performs network address translation and may time out, breaking the connection) you should enable sending of null packets at (say) 60-second intervals.

Click on “Data” and enter your username; this can be an ordinary user account name or can be “root” for system administration purposes.

Read more at www.lesbell.com.au

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