To see if yourserver.com is an open relay, you can run through the following sequence on any box that has...
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cli
Wireshark and tcpdump are extremely powerful network troubleshooting tools. Here are some command examples...
It's actually surprisingly easy. Install fswebcam (preferably via RPM) and then run this command:
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Deactivate all inactive users in the last year:
UPDATE `smf_members` SET `is_activated` = 0...
Windows and command line go together like ice-cream and pickles, but there are actually some neat commands...