apache24 and accf_http Accept Filter

[Michael Ross]

On Sun, 17 Aug 2014 22:57:32 +0200, Dale Scott <dalescott at shaw.ca> wrote:

>> On Aug 17, 2014, at 11:46 AM, "Michael Ross" <gmx at ross.cx> wrote:
>>
>>> On Sun, 17 Aug 2014 18:44:33 +0200, Jim Pazarena <fquest at paz.bz> wrote:
>>>
>>> My upgrade to apache24 from 22 met an error about the Accept Filter.
>>> I never had to deal with this before.
>>> So research shows that I should run "kldload accf_http".
>>> Which works, and apache24 now executes.
>>> My question is, where is the correct location to place the
>>> "kldload accf_http" directive?  I'm guessing "loader.conf", but that  
>>> doesn't look right.
>>>
>>> Thanks for advice.
>>
>> You should put
>>
>>    apache24_http_accept_enable="YES"
>>
>> into /etc/rc.conf
>>
>> The apache rc script takes care of the module loading.
>
> Why is apache24_http_accept_enable required? Instructions generally  
> indicate to set both, but I only have apache24_enable in rc.conf and all  
> seems to work ok (apache24 is used to serve phpldapadmin only). Can  
> anyone explain why?
>
> Dale

It is not required.

"
      This is a filter to be placed on a socket that will be using accept()  
to
      receive incoming HTTP connections.

      It prevents the application from receiving the connected descriptor  
via
      accept() until either a full HTTP/1.0 or HTTP/1.1 HEAD or GET request  
has
      been buffered by the kernel.
"

See the man pages for accf_http and accf_data.


Michael