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Sendmail sending fake e-mails

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klausgeld

MIS
Jul 18, 2001
1
US
Our mail server is being telneted by someone who then sends fake e-mail messages to people in our company. How do I stop this?
 
Hi,
Using the "last" command u can find out who is logging into your machine from what terminal,which machine,what user-id and the total login time.If u have suspicion about any user-id then just change the password of that id.
One more thing,see if u have .rhosts file in your system.If it is there, then remove that file.
 
The person is telneting into port 23. You need to identify where it is coming from and who is doing it. I recommend using a snoop -o to find the culprit.
 
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