When attempting to visit the Status > RRD Graphs page of pfSense, I am greeted with a blank page... Most likely due to PHP being unable to complete the request...
I am unsure how to repair this. On Linux I would usually run something akin to the following to discover the problem, but I can't do this on pfSense (AFAIK):
su -l apache -c 'strace php /usr/local/www/status_rrd_graph.php'
Just to demonstrate how little is returned by PHP:
$ wget https://XXX.XXX.XXX.XXX/status_rrd_graph.php --no-check-certificate -O - --2012-07-20 23:43:06-- https://XXX.XXX.XXX.XXX/status_rrd_graph.php Resolving XXX.XXX.XXX.XXX (XXX.XXX.XXX.XXX)... 10.0.0.1 Connecting to XXX.XXX.XXX.XXX (XXX.XXX.XXX.XXX)|10.0.0.1|:443... connected. WARNING: cannot verify XXX.XXX.XXX.XXX's certificate, issued by `/C=US/ST=Somewhere/L=Somecity/O=CompanyName/OU=Organizational Unit Name (eg, section)/CN=Common Name (eg, YOUR name)/emailAddress=Email Address': Self-signed certificate encountered. WARNING: certificate common name `Common Name (eg, YOUR name)' doesn't match requested host name `XXX.XXX.XXX.XXX'. HTTP request sent, awaiting response... 200 OK Length: 0 [text/html] Saving to: `STDOUT' [ <=> ] 0 --.-K/s in 0s 2012-07-20 23:43:06 (0.00 B/s) - written to stdout [0/0]