I'm experimenting with some setups on my vmware sandbox ahead of migration planning from IPB.
My setup currently is a nginx 1.4 with php-fpm php5.5.8 (sockets), login to the forums area works fine.
Admin login, as others have reported is repeating the login request. It's checking password if I duff it, it tells me it's invalid.
I've checked and cleared the sessions (admin and normal) a few times. Now I'm drawing a blank.
I've seen this thread: http://xenforo.com/community/threads/cant-login-to-my-admin-kontrol-panel.41223/ and the subsquent thread suggestions.
Regrettably my sandbox is under my desk and not exposed to the interweb. I'm using a dummy domain briskoda.dev, which is set in my hosts file. I installed ( a few times now ) from that url fine. I've used a combination of safari, chrome and firefox to test, each repeats, all enabled for cookies. Cookies are being set too, in admin xf_session, xf_session_admin & xf_user.
I've also set debug true in the config, being new to XF I still have to work out what I'm debugging.
I'm missing something. I hope to feel like a wally soon, so I can crack on and get off IPB.
p.s. the only other odd ball is I've got a percona cluster, behind a haproxy. The install/upgrades and front end logins work... to eliminate that I connected to a cluster node directly, same results. Thought I'd mention it though.
-Edit -> Seems the balancing into the cluster is the spell breaking the magic. See below.