Remote Login Issues

Of course, allowing remote logins to your server through a network significantly increases security risks. However, sometimes it is necessary for users to be able to log in to the server remotely. If you do need to allow remote logins, there are some things you can do to make them as secure as possible. We will look at each of these next.

Telnet

Telnet is a very primitive method of allowing remote logins to a server. It really should be considered obsolete even though it is still commonly used. Telnet's primary security problem is that it does nothing to encrypt the transmission of the password when the user logs in remotely. Because of this, anyone sniffing the network traffic going to your server can obtain a login name ...

Get Sams Teach Yourself FreeBSD® in 24 Hours now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.