Hi teewhey
/var/log/php5-fpm.log has no error inside.
/var/log/nginx/error.log nothing interesting also.
in /var/log/ispconfig/httpd/xxxxxx.com/error.log, lines like
2014/03/01 10:36:01 [error] 2853#0: *3688308 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: xx.xx.xx.xx, server: xxxxxx.com, request: "GET /?source=xxxxxx HTTP/1.1", upstream: "fastcgi://127.0.0.1:9014", host: "www.xxxxxx.com", referrer: "http://www.xxxxxx.com/"
or
2014/02/27 09:22:59 [error] 2853#0: *1112414 connect() failed (111: Connection refused) while connecting to upstream, client: xx.xx.xx.xx, server: xxxxxx.com, request: "GET /xxxxxx.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9017", host: "xxxxxx.com"
in /var/log/ispconfig/httpd/xxxxxx.com/access.log, lines that have 502 BAD GATEWAY like
xx.xx.xx.xx - - [04/Mar/2014:14:27:01 +0100] "GET /?xxxxxx HTTP/1.1" 502 568 "-" "Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36"
regards
/var/log/php5-fpm.log has no error inside.
/var/log/nginx/error.log nothing interesting also.
in /var/log/ispconfig/httpd/xxxxxx.com/error.log, lines like
2014/03/01 10:36:01 [error] 2853#0: *3688308 recv() failed (104: Connection reset by peer) while reading response header from upstream, client: xx.xx.xx.xx, server: xxxxxx.com, request: "GET /?source=xxxxxx HTTP/1.1", upstream: "fastcgi://127.0.0.1:9014", host: "www.xxxxxx.com", referrer: "http://www.xxxxxx.com/"
or
2014/02/27 09:22:59 [error] 2853#0: *1112414 connect() failed (111: Connection refused) while connecting to upstream, client: xx.xx.xx.xx, server: xxxxxx.com, request: "GET /xxxxxx.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9017", host: "xxxxxx.com"
in /var/log/ispconfig/httpd/xxxxxx.com/access.log, lines that have 502 BAD GATEWAY like
xx.xx.xx.xx - - [04/Mar/2014:14:27:01 +0100] "GET /?xxxxxx HTTP/1.1" 502 568 "-" "Mozilla/5.0 (Windows NT 6.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/32.0.1700.107 Safari/537.36"
regards