15 - Secure Safehouse

It's past midnight now. The zombies managed to invade your safehouse and you needed to escape. Again. Seems like the imprudent security measures had their price. But there is hope! Rumor has it there's another safehouse which proves to be more secure, employing security measures no zombie would ever figure out. But can you? SSH: ctf.fluxfingers.net PORT: 1233 USER: ctf PASS: xbshsya8ksUs7
 

credits: 250 +3 (1st), +2 (2nd), +1 (3rd)