Hi, I'm still trying to figure out what's the best solution for mobile subdomains combined with file caching. I'm planning to copy the MediaWiki installation files for the mobile version to a separate folder (m) and link the subdomain to that folder while using the same database like the desktop version. Or is there a better way? Can it cause any problems if one database shares two installations? My setup: OpenBSD 5.7 nginx 1.7.10 MediaWiki 1.25.1 PHP 5.4.38 (fpm-fcgi) MariaDB 10.0.16-MariaDB-log LocalSettings.php: # Memcached $wgMainCacheType = CACHE_MEMCACHED; $wgParserCacheType = CACHE_MEMCACHED; # optional $wgMessageCacheType = CACHE_MEMCACHED; # optional $wgMemCachedServers = array( "127.0.0.1:11211" ); $wgSessionsInMemcached = true; # optional $wgUseGzip = true; $wgEnableSidebarCache = true; # File cache $wgUseFileCache = true; /* default: false */ $wgFileCacheDirectory = "$IP/cache"; $wgShowIPinHeader = false; # Text cache $wgCompressRevisions = true; $wgRevisionCacheExpiry = 3*24*3600; $wgParserCacheExpireTime = 14*24*3600; # NO DB HITS! $wgDisableCounters = true; $wgMiserMode = true; # MySQL performance tuning $wgAntiLockFlags = ALF_NO_LINK_LOCK | ALF_NO_BLOCK_LOCK; # Image performance tuning $wgShowArchiveThumbnails = false; # cron performance tuning $wgJobRunRate = 0; Thanks and cheers! Till