using webmin
 

I'm running a linux red hat 9 server with sendmail for my mail server I would like to administer this server over the web if I need to...
webmin works great for this except there seems to be no security is there a way to add security to webmin or is there another program out there to do this job?

Do not use Webmin on a machine connected directly to the Internet! Never, ever.
Log in using SSH and take care of what you have to do instead.

Håkan

ssh
 

what do you mean by log in using SSH? how do I do that?

hw-tph means, that you use ssh (secure shell) to gain access to the machine you have webmin installed on. like the following:
ssh "ip address of machine" eg 192.168.10.1
it will then prompt you for the password of the user you are currently login as.