Users of RBL's

[Julian Field]

Our network went down for 5 minutes for Cisco upgrades last night.
BTW there is always www.emailscanner.info as a backup website if you  
have any other problems, it syncs every night (many thanks Blacknight!)

On 29 Jun 2006, at 16:27, Mark Presling wrote:

> Ahhhhh... the one time I get a chance to do a MS upgrade while I  
> have time to kill on the train and the website is broken and I  
> can't download the latest version!! Doh...
>
> Steve Campbell wrote:
>
>> Quoting Mark Presling <mark at presling.com>:
>>
>>
>>> Steve Campbell wrote:
>>>
>>>> Chris, and all,
>>>>
>>>> ----- Original Message ----- From: "Mark Presling"  
>>>> <mark at presling.com>
>>>> To: "MailScanner discussion" <mailscanner at lists.mailscanner.info>
>>>> Sent: Thursday, June 29, 2006 6:58 AM
>>>> Subject: Re: Users of RBL's
>>>>
>>>>
>>>>
>>>>> Hi Chris,
>>>>>
>>>>> Have you checked the size of your bayes database files? I used  
>>>>> to have a
>>>>> 1GB machine that SpamAssassin would regularly time out on  
>>>>> because the
>>>>> bayes DB would get too big from the auto learning. I had to  
>>>>> tune it so
>>>>> that the DB file would stay below 5MB or it just timed out  
>>>>> scanning
>>>>> larger messages. It also used up 100% of the CPU most of the  
>>>>> time. I
>>>>> used to manually expire old tokens from it as well, but that  
>>>>> was before
>>>>> MS started doing that automatically for me. Even on my newer  
>>>>> server (2G
>>>>> Pentium 4) I still restrict the size of the the bayes DB with
>>>>> "bayes_expiry_max_db_size 400000". This seems to keep the DB at  
>>>>> around 10MB.
>>>>>
>>>> I assume this should go into spam.assassins.prefs file? And do I  
>>>> just add this line and the next expiry will whittle the file  
>>>> down or do I have to do something to the files first?
>>>>
>>> Yes that is correct. I am using MailScanner version 4.43.8 (~July  
>>> 2005) and I put it at the end of /etc/MailScanner/ 
>>> spam.assassin.prefs.conf. I am in the process of preparing to  
>>> upgrade to a newer version so can't confirm that this is still  
>>> the correct approach. MailScanner automatically triggers the  
>>> expiry, I don't have to do anything. Just make sure that  
>>> MailScanner.conf contains something similar to this:
>>>
>>> # If you are using the Bayesian statistics engine on a busy server,
>>> # you may well need to force a Bayesian database rebuild and expiry
>>> # at regular intervals. This is measures in seconds.
>>> # 1 day = 86400 seconds.
>>> # To disable this feature set this to 0.
>>> Rebuild Bayes Every = 86400
>>>
>>
>> Thanks,
>>
>> Already have that set. It just seemed that my 50+ MB file was a  
>> lot bigger than
>> the 10MB mentioned, and I wanted to know if adding the additional  
>> setting would
>> take care of pruning the next time the expiry occurred or if it  
>> would complain
>> because of the size.
>>
>> I also stopped/started MS after adding the new setting.
>>
>> Steve
>>
>>>
>>>> Thanks for any input.
>>>>
>>>> Steve
>>>>
>>>>
>>>>> Mark
>>>>>
>>>>> Chris Hammond wrote:
>>>>>
>>>>>>>>> Sounds like you may just be asking too much of the hardware.
>>>>>>>>>
>>>>>>>>>
>>>>>>>> This could very well be.  Before I go asking for a new  
>>>>>>>> server though, I want to make sure I have my ducks in a row.
>>>>>>>> When this was nothing more than a Postfix box with static  
>>>>>>>> rules, it handled the job just fine.  But I think it may
>>>>>>>> be really working for it's living.
>>>>>>>>
>>>>>>>>
>>>>>>> MailScanner and SpamAssassin do use a lot of resources. It  
>>>>>>> looks to be
>>>>>>> cpu bound, but that's a good thing usually! Any way to  
>>>>>>> upgrade that
>>>>>>> processor? To reduce CPU usage, tune/configure some software.  
>>>>>>> Did you
>>>>>>> read the performance tweaks section in the mailscanner wiki?  
>>>>>>> To reduce
>>>>>>> disk writes, setup syslog to log to another box, or put mysql  
>>>>>>> on another
>>>>>>> box, or throw another cheap ide drive into the box and log to  
>>>>>>> it,
>>>>>>> instead of the mirrored drives.
>>>>>>>
>>>>>>>
>>>>>> I was beginning to feel the same way.  The DL-145 is a dual  
>>>>>> processor capable box
>>>>>> so I will see about adding a second processor to it.
>>>>>>
>>>>>> I did go through the tweaks section on the wiki.  My next  
>>>>>> thought was moving MySQL to
>>>>>> another machine.  There is no more room for another drive so  
>>>>>> that is not an option
>>>>>> unfortunately.  I am going to move the MySQL server to another  
>>>>>> box tonight and see what
>>>>>> that gains me.
>>>>>>
>>>>>> Thanks
>>>>>> Chris
>>>>>>
>>>>>> -- 
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>>>>>> mailscanner at lists.mailscanner.info
>>>>>> http://lists.mailscanner.info/mailman/listinfo/mailscanner
>>>>>>
>>>>>> Before posting, read http://wiki.mailscanner.info/posting
>>>>>>
>>>>>> Support MailScanner development - buy the book off the website!
>>>>>>
>>>>>>
>>>>>>
>>>>> -- 
>>>>> This message has been scanned for viruses and dangerous
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>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>> -------------------------------------------------------------------- 
>>> ------------
>>>
>>>
>>>>
>>>>
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>>>>>
>>>>> Before posting, read http://wiki.mailscanner.info/posting
>>>>>
>>>>> Support MailScanner development - buy the book off the website!
>>>>>
>>>>>
>>>>
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>>>
>>>
>>>
>>
>>
>>
>>
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-- 
Julian Field
MailScanner at ecs.soton.ac.uk



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