Stuff…

If you get the following error (“CHECK_NRPE: Error – Could not complete SSL handshake.“) when trying to connect to a remote NRPE (nagios) setup you should check on the NRPE machine that check_nrpe client IP is in the list. ie. allowed_hosts=127.0.0.1,YOUR_OTHER_IP In the /etc/nagios/nrpe.cfg configuration file. CHECK_NRPE: Error – Could not complete SSL handshake.

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For some reason the mail log was showing lots of: Sep 23 09:40:03 hostname qmail: 1253695203.637058 alert: cannot start: unable to open mutex Sep 23 10:32:16 hostname qmail: 1253698336.515510 alert: cannot start: unable to open mutex Sep 23 10:32:21 hostname qmail: 1253698341.425333 alert: cannot start: unable to open mutex and qmail was not working properly. [...]

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Bounce message received: A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: user@fromaddress.com Malformed SMTP reply from mail.server.com [192168.1.1] in response to initial connection: rblsmtpd: 192.168.6.62 pid 14483: 451 Sender has sent to LashBack Unsubscribe Probe accounts: retry timeout [...]

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OS: Ubuntu 6.06 Cacti 0.8.7e Plesk 9 Setting up cacti went fine until trying to run the poller: # sudo -u cacti /opt/psa/bin/php-cli /var/www/vhosts/hostname/httpdocs/poller.php sh: /php-cli: No such file or directory sh: /php-cli: No such file or directory sh: /rrdtool: No such file or directory Had to modify the php.ini (/etc/php5/cli/php.ini) for the php-cli binary: [...]

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I reset the configuration on one of these old switches and obviously it changed the password.  The default password was: admin

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