RBL vs Exim banned IPs (which one consumes less memory)

albatroz

• April 24, 2014 09:00

I have made a script that imports the IPs banned by Exim (I use WHM for editing this list) into my custom blacklist, however I am worried that this list may become too big, so I have a doubt on how efficient is Exim"s memory use on this situation. I made this setup to avoid having to create a custom web app :) Is this a good idea or it would be better to keep the exim blacklist file size to the minimum?

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  vanessa

  • April 24, 2014 14:46

  It may be considered more efficient, as far as memory is concerned. to set up the blacklist as a DNSBL, then have Exim query it like it would any other RBL. I used the below instructions the first time I ever did this, which was a long time ago so you'd need to adjust accordingly for CentOS 6: [url=http://www.blue-quartz.com/rbl/]Running your own RBL DNS blacklist using rbldnsd Then to integrate with Exim:

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  cPanelMichael

  • April 24, 2014 15:06

  Hello :) Yes, Vanessa's post above is good advice. It also depends on what you consider to be a large list. 100 IP addresses might seem like a lot to some users, but in reality that should not pose much of an issue as far as CPU/Memory usage. Thank you.

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