As long as the connection between the application and the database uses TCP, you can use the SSH channel to authenticate...
to each other and increase security against different kinds of attacks. To use SSH for a variety of services you should use port redirection.
To enable a Web application to authenticate to your database you will need to put an SSH client on the Web server and an SSH server on the database server. SSH can then encrypt passwords and network traffic between your Web and database servers, thus preventing eavesdropping, IP spoofing, IP source routing, DNS spoofing and other network-level attacks.
You can receive free, open source implementations at http://www.openssh.com or commercial versions including Windows versions at http://www.ssh.com. There are two versions of SSH, SSH Secure Shell Version 1 and Secure Shell Version 2. SSH1 is not as secure as SSH2 and is gradually being withdrawn from use. SSH2 is actually a complete rewrite of the protocol, and it does not use the same networking implementation as SSH1, so make sure you use SSH2. A good SSH "how-to" can be found at http://p25ext.lanl.gov/ssh/ssh-howto.html.
Related Q&A from Michael Cobb
Expert Michael Cobb explains how password change frequency and reuse for third-party apps should be addressed in enterprise password policies.continue reading
In this introduction to database security, expert Michael Cobb explains the differences between relational database and NoSQL security.continue reading
Learn how a Web-based free spam-filtering service can secure email and prevent spam from attacking your enterprise.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.