FreeBSD Apache HTTP Accept Filter Error
by Steve O Hernandez on Jul.16, 2007, under Technology
When Apache web server is starting up in FreeBSD system, Apache loads succcessfully and web server functioning properly, but the following warning error occurs:
[warn] (2)No such file or directory:
Failed to enable the ‘httpready’ Accept Filter
The resolution to the above problem is to a accf_http module, which function is to buffer incoming connections until a certain complete HTTP requests arrive, into FreeBSD kernel by using kernel linker:
kldload accf_http
To permanently load enable HTTP Accept Filter FreeBSD kernel module (accf_http), add the following line into /boot/loader.conf:
accf_http_load=”YES”
Note: The default settings is located in /boot/defaults/loader.cnf. To see the related settings about accf, use:
grep accf /boot/defaults/loader.conf
which will returns:
accf_data_load=”NO” # Wait for data accept filter
accf_http_load=”NO” # Wait for full HTTP request accept filter
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