I run a server with some PHP-powered forums (Vanilla 1.1.5a) on it, and I've recently noticed posts going out of order on them. Some digging revealed that Apache seems to be changing the current timezone back and forth from +0000 to -0500 on a request without apparent pattern, which can be seen in log entries like these:
126.96.36.199 - - [15/Jun/2009:22:40:05 +0000] "GET /extensions/MembersList/library/paginate.js HTTP/1.1" 200 22880 "http://mysite.com/" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b99) Gecko/20090605 Firefox/3.5b99" 188.8.131.52 - - [15/Jun/2009:17:40:05 -0500] "GET /extensions/JQuery/jquery-1.2.6.min.js HTTP/1.1" 200 55804 "http://mysite.com/" "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1b99) Gecko/20090605 Firefox/3.5b99"
Though the time adjusted for the timezone difference is the same, it seems to be causing PHP's date function to return the local, unadjusted time (with ensuing timewarp chaos happening in the forum's data).
I'm also running a Django-based mod_python application on the same VirtualHost. The config looks like this:
<VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /var/www/ <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory /var/www/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/ <Directory "/usr/lib/cgi-bin"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all </Directory> ErrorLog /var/log/apache2/error.log # Possible values include: debug, info, notice, warn, error, crit, # alert, emerg. LogLevel warn CustomLog /var/log/apache2/access.log combined Alias /doc/ "/usr/share/doc/" <Directory "/usr/share/doc/"> Options Indexes MultiViews FollowSymLinks AllowOverride None Order deny,allow Deny from all Allow from 127.0.0.0/255.0.0.0 ::1/128 </Directory> Alias /media/ "/usr/share/python-support/python-django/django/contrib/admin/media/" <Directory /usr/share/python-support/python-django/django/contrib/admin/media/> Options Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> RedirectMatch ^/raid-scheduler$ "/raid-scheduler/" <Location "/raid-scheduler/"> SetHandler python-program PythonHandler django.core.handlers.modpython SetEnv DJANGO_SETTINGS_MODULE raid_scheduler.settings PythonOption django.root /raid-scheduler PythonDebug On PythonPath "['/opt', '/opt/raid_scheduler'] + sys.path" </Location> </VirtualHost>
Any ideas as to what might be causing this?