I've explored https (ssl) on nginx, uhttpd, and lighttpd. I've only had success with lighttpd. Your best bet is to use that instead of nginx.
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Have you checked version of MYSQL and PHPadmin. MYSQL 5.1.73-2 in the dist-feeds may only play nicely with PHPadmin 126.96.36.199
Ugh LITERALLY just figured it out
For whatever reason, the document root is also specified in the /etc/php.ini file. (this is DUMB DUMB DUMB) See more here:
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