TCP Ports



When giving a task to your Sentinel to scan certain network for enabled TCP services, you may select the "Quick Scan" option.

For the quick scan, we use the following 25 common TCP ports.


Port Number Description
21 File Transfer Protocol (FTP)
22 Secure Shell (SSH)
23 Telnet
25 Simple Mail Transfer Protocol (SMTP)
53 Domain Name Resolution (DNS)
80 Web browsing (HTTP)
110 Email services (POP3)
135 Microsoft RPC Locator service
137 NetBIOS Name service / WINS
139 NetBIOS Name service / WINS
143 Email services (IMAP4)
161 Simple Network Management Protocol (SNMP)
389 Lightweight Directory Access Protocol (LDAP)
443 HTTP over Secure Socket Layer (SSL)
445 Microsoft Active Directory and SMB Protocol
636 LDAP over SSL
1433 Microsoft SQL database
1521 Oracle database
1723 Point to Point Tunneling Protocol (PPTP)
3306 MySQL database
3389 Microsoft Remote Desktop
5432 PostgreSQL database
5900 RealVNC Remote Control
8000 VMware Server
8080 Web proxy, Web cache