[CentOS] preventing apache from being a mail relay

Robert Moskowitz rgm at htt-consult.com
Sun Mar 3 22:21:24 UTC 2013


On 03/03/2013 05:06 PM, Alexander Dalloz wrote:
> Am 03.03.2013 22:49, schrieb Robert Moskowitz:
>
>> There was an attack, and if you search you will find references to it,
>> where the spammers post to your web server in such a way that they relay
>> out port 25.  They send to your port 80, but you send out port 25.  For
>> example:
>>
>> http://forums.fedoraforum.org/archive/index.php/t-173601.html
>>
>> My old server has been running smoothly for over two years, but it is
>> time to bring the software current.  I did all the work on this back
>> then, or maybe before and copied from my earlier server.  This time I am
>> trying to build everything clean and document every change I make.
> Such a misbehaviour would be caused by a misconfigured apache proxy setup.

It is coming back now through a pair of dark glasses. Just haven't built 
a public web server is so long, as the old one just ran for as little as 
I needed it, that I lost the notes on the problem. Looks like current 
defaults do not allow this.





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