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Posted by Wayne on Mon 4 Aug 2008 at 23:16
Tags: none.
We are currently running a mixture of cacti and a very old version of Whats Up Gold. I'm looking to replace the WUG server for something opensource. I've looked at Zabbix, Zenoss, Nagios (pain-in-the-arse to config), opennms (the VM server runs ok but cannot install on Etch using .debs) and jffnms (does not seem to be active). I'll be monitoring Linux and Windows servers (mail, web and DB) plus Cisco routers and switches.

What are you guys using and why?


Posted by Wayne on Tue 8 Jul 2008 at 16:35
I have a postfix box which I have inherited. It is running disk quota's and the main anti-spam features built into postfix. The trouble I'm having is a lot of the email addresses are now no longer used so any email going into them is accepted by postfix then procmail tries to deliver the mail which fails and is then put back into the postfix queue to be sent back to the original sender.

We are not using mysql so I'm unsure of how to stop postfix accepting the email when the user is over quota, failing that how can I redirect (to dev/null or another address) the over quota message from procmail or postfix?

Once I have a list of the boxes over quota I can check the email addresses to see if they are still active or not.



Posted by Wayne on Thu 30 Aug 2007 at 22:24
Tags: , , ,
We have recently taken over another company and all their servers, the main mail server which is running sendmail is being hammered.

We are using RBL lists, greet pause and have max children set at 300 which is constantly being reached. I have also blocked a lot of /16's in the firewall but we are still struggling. I have tried to use hermes for greylisting but this has proved to be unstable and pisses off the users. The problem has been getting worse all week.

I'm in the process of installing postfix on Etch and will migrate but will this help?

Suggestions very welcome.