I realize this is really late but I thought I’d put this out there because it took me a while to figure this out. I just installed urbackup 2.1.19, lighttpd 1.4.45 on Centos 7.
I seemed to be having a similar issue with lighttpd and fastcgi where my screen would show the urbackup frame but then sit and spin. I noticed in the logs I was getting an HTTP 404 when the system tried to “POST /urbackup/x?a=login”. I added a line to fastcgi.conf:
fastcgi.server = (
(( “host” => “127.0.0.1”,
“port” => 55413, <- put a comma on the end of this line
"check-local" => “disable” <- add this line (no comma)
Once I restarted lighttpd I was able to get a login prompt and use SSL to get to the server. Instead of a HTTP 404 I now get a HTTP 200 OK
Not sure if this will fix the issue with Apache but it did fix my issue with lighttpd. Thought I would share. Hopefully it will save someone some time.