Another issue:

./minerd -a x15 -t 6 -s 4 -o stratum+tcp://kobo.suprnova.cc:5057 -u drazha.worker -p worker
[2015-02-04 13:41:39] Starting Stratum on stratum+tcp://kobo.suprnova.cc:5057
[2015-02-04 13:41:39] 6 miner threads started, using 'x15' algorithm.
[2015-02-04 13:41:39] Binding thread 2 to cpu 0
[2015-02-04 13:41:39] Binding thread 4 to cpu 0
[2015-02-04 13:41:39] Binding thread 1 to cpu 1
[2015-02-04 13:41:39] Binding thread 3 to cpu 1
[2015-02-04 13:41:39] Binding thread 0 to cpu 0
[2015-02-04 13:41:39] Binding thread 5 to cpu 1
[2015-02-04 13:41:41] Stratum connection failed: Failed to connect to kobo.suprnova.cc port 5057: Connection refused
[2015-02-04 13:41:41] ...retry after 10 seconds


Seems nothing is working on port 5057?