Group Forums will never work on some hosting providers
I have been out of the BP loop for a short while working my hardest trying and succeeding in breaking my home network… but today I have grabbed the latest trunk and discovered that forums will never work on our host provider.
Before anyone thinks that I am getting on some kind of rant… I would like to state that this situation has affected us not only with WordPress MU but with regular WordPress too…
Basically, some webhosting providers that offer shared hosting solutions do not and will find it extremely difficult to enable internal DNS resolutions for your domain…
mydomain.com = 18.104.22.168.25
But internally, for mydomain.com to look for mydomain.com …DNS will reach the same conclusion for the IP… where in fact, the internal address would more likely be 192.168.1.232.
Even though this sounds confusing, it means that certain features of your WordPress, WordPress MU and BuddyPress will not be available.
To start, if you are running a WPMU site, pingbacks and trackbacks will not work for blogs hosted on the same site… ie ‘mysite.wpmudomain.com’ pings ‘yoursite.wpmudomain.com’, then pingbacks and trackbacks will result in a timeout…
Secondly, wp-cron will not work because the same technique is used to call wp-cron.php.
So basically, I have plopped this forum post on here to explain the limitations that can be encountered purely due to where you host your WordPress/WordPress MU/BuddyPress… and now for the BuddyPress explanation…
BuddyPress Group Forums works by using xmlrpc for communication and thus will never work if your host provider has no internal DNS lookup for your domain.
Without going into even more depth, there are 3 solutions to this situation:
- Change to a virtual server or someone dedicated to provide what you need
- Do not worry about Forums and pretend they are not there
- Plan to write your own BuddyPress implementation
(we are planning the last approach as we are hosted on a very very large datacentre that provides high availability, high bandwidth and low server sharing)
Anyways, I hope I have provided some into an insight on why some users cannot get their forum working. …For info on getting your pingbacks and wp-cron working… visit http://dev.ind-web.com/2008/11/24/trackbacks/ (yups… our blog is a mess… pity ya cant see the local versions yet… should be launched in the new year of 2009 and we will have the plugins available soon too)
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