в последних версиях версиях uTorrent есть кнопка для проверки порта.

Scan IP: 78.138.169.136port service description error
20 FTP data Connection refused
21 FTP control Connection refused
22 SSH ok
23 Telnet Connection refused
25 Simple Mail Transfer Protocol Connection refused
39 rlp: Resource Location Protocol Connection refused
43 whois Connection refused
69 tftp Connection refused
79 finger Connection refused
80 http Connection refused
88 kerberos Connection refused
107 rtelnet Connection refused
109 pop2 Connection refused
110 pop3 Connection refused
111 sunrpc:SUN Remote Procedure Call Connection refused
137 Netbios name service Connection refused
138 Netbios name service Connection refused
139 Netbios datagram service Connection refused
143 imap4 Connection timed out
161 snmp Connection refused
464 kpasswd: kerberos v5 Connection refused
512 Remote Process Execution Connection refused
513 remote login Connection refused
514 cmd shell Connection refused
530 courier rpc Connection refused
544 kshell: Kerberos remote shell Connection refused
636 ldaps Connection refused
749 LDAP over TLS/SSL Connection refused
1433 kerberos-adm Connection refused
1434 ms-sql-s: Microsoft-SQL-Server Connection refused