Re: Premature end of script headers more annoying than usual . . .

I think moritz's point about SELinux is a good one. So, you might first want to check whether it's enabled (cat /etc/selinux/config — IIRC that's the respective config file). In case it's enabled, you could temporarily disable it (though I think that would require a server reboot...), to see whether the problem goes away.

If all else fails, you could start Apache in debugging mode (option -X — in which case it will start only one child/worker), attach strace to that process (via option -p, as root), and then make the request. The strace output should give you a clue as to what's wrong...

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Re^2: Premature end of script headers more annoying than usual . . . by hesco (Deacon) on Nov 21, 2008 at 16:03 UTC
I have no prior experience with selinux and so am flying blind here. `ls /etc/selinux/ restorecond.conf semanage.conf` [download] but no config, for whatever that is worth . . . man apachectl shows no -X or -p options. Do I feed those to /etc/init.d/apache start instead? I'm not sure how to try your advise, here. Further guidance would be appreciated. -- Hugh if( $lal && $lol ) { $life++; }	[reply] [d/l]
Re^3: Premature end of script headers more annoying than usual . . . by almut (Canon) on Nov 21, 2008 at 16:25 UTC
`ls /etc/selinux/ restorecond.conf semanage.conf` [download] Without doing further research myself, I can't really comment on those files... What do they contain? At least, the fact that there is a `/etc/selinux/` directory indicates that the issue might not be totally irrelevant... man apachectl shows no -X or -p options. Sorry if I wasn't being clear. `-X` is an option of the actual binary (i.e. `httpd` or `apache`, depending on distro), and the `-p` option belongs to `strace`. You could either simply start `httpd` manually (after having terminated the running instances with `apachectl` as usual), or edit the `-X` into the `apachectl` script (in the "start" section¹). If you do start it manually, it's probably a good idea to first check with which options it is being run currently (`ps axf`, or some such), and use those in addition to `-X`. Also, I forgot to mention that with `strace` you probably also want the option `-f`. ___ ¹ something like: `... start\|stop\|restart\|graceful) $HTTPD -X ... ^ insert this` [download]	[reply] [d/l] [select]