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Operating System Recommendation

Customers often ask me which linux OS they should use... When money is no object, RHEL is my obvious choice, but when cost is a factor thats when CentOS comes in What is CentOS The Official Description is as follows: CentOS is an Enterprise-class...

Hiding daemon version numbers

An easy way to make yourself a little less vulnerable to common attack vendors, is to hide the version numbers of the common daemons running on your boxes, and its relativly simple to do. Hiding the BIND Version If you follow my Closing Open D...

Setting up a RAM Disk for MailScanner

Having recently added an influx of hosting customers and some additional SA rules, I noticed a considerable increase in the amount of load that MailScanner was creating, with a limited spend this year (Too many shiny new servers) I decided to...

cPanel RBL Additions

Adding RBL's to exim on a cpanel server couldn't be easier, there are plenty of HOWTO's around for doing it but one thing I found when I was a new user trying to get my head around it was that the howtos tend to direct you to check the RBL's at the...
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