Stuff…

Upgrading from Windows Parallels Plesk 8.1.1 to 8.6 went smoothly according to the installer, however, after the upgrade completed and machine rebooted the Plesk control panel no longer loaded. It would often return an error to the browser, but, also occasionally would say: get_config_string failed: PRODUCT_DATA_D: The system cannot find the file specified. (Error code [...]

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I was getting a bit bored of manually testing SMTP AUTH details for people so wrote a quick little script in perl (with help of modules) to test. #!/usr/bin/perl -w use Net::SMTP_auth; use Getopt::Std; %options=(); getopts(“u:p:h:”,\%options); my $_USAGE= <<END_USAGE; test_auth.pl   -  Check SMTP authentication Usage:   test_auth.pl -u user -p pass -h hostname License: This software [...]

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Needed to add RBL checking into sendmail as the machine was under attack by some smtp botnet.  RAQ550s had no inbuilt RBL support so had to update the sendmail.cf manually. URL: http://www.cobaltuserslist.com/CobaltUsersList/Sun-Cobalt-Users-List-76800.html The example is a bit old… the RBLs I used are: cbl.abuseat.org , bl.spamcop.net, sbl.spamhaus.org Cobalt list post: RBL (Realtime Blackhole List) filtering [...]

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Occasionally you may want to test your mail server to see if it accepts unauthenticated mail to be relayed. These URLs allow you to do this: http://www.abuse.net/relay.html http://www.dnsgoodies.com/ http://www.checkor.com/

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To quickly check that SMTPS is running on a remote server you could run: openssl s_client -connect hostname:465

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