21
stealth
File Transfer Protocol (FTP) control (command)
22
stealth
Secure Shell (SSH), secure logins, file transfers (scp, sftp) and port forwarding
23
stealth
Telnet protocol-unencrypted text communications
25
stealth
Simple Mail Transfer Protocol (SMTP), used for email routing between mail servers
53
stealth
Domain Name System (DNS)
80
stealth
Hypertext Transfer Protocol (HTTP) uses TCP in versions 1.x and 2. HTTP/3 uses QUIC, a transport protocol on top of UDP.
88
stealth
Kerberos authentication system
110
stealth
Post Office Protocol, version 3 (POP3)
135
stealth
DCE endpoint resolution,Microsoft EPMAP (End Point Mapper), also known as DCE/RPC Locator service, used to remotely manage services including DHCP server, DNS server and WINS. Also used by DCOM
143
stealth
Internet Message Access Protocol (IMAP), management of electronic mail messages on a server
179
stealth
Border Gateway Protocol (BGP), used to exchange routing and reachability information among autonomous systems (AS) on the Internet
389
stealth
Lightweight Directory Access Protocol (LDAP)
443
stealth
Hypertext Transfer Protocol Secure (HTTPS) uses TCP in versions 1.x and 2. HTTP/3 uses QUIC, a transport protocol on top of UDP.
995
stealth
Post Office Protocol 3 over TLS/SSL (POP3S)
1433
stealth
Microsoft SQL Server database management system (MSSQL) server
3306
stealth
MySQL database system
3389
stealth
Microsoft Terminal Server (RDP) officially registered as Windows Based Terminal (WBT)
5000
stealth
UPnP-Windows network device interoperability,VTun, VPN Software,ASP.NET Core - Development Webserver,FlightGear multiplayer,Synology Inc. Management Console, File Station, Audio Station,Flask Development Webserver,Heroku console access,Docker Registry,AT&T U-verse public, educational, and government access (PEG) streaming over HTTP,High-Speed SECS Message Services,3CX Phone System Management Console/Web Client (HTTP),RidgeRun GStreamer Daemon (GSTD) ,Apple's AirPlay Receiver,League of Legends, a multiplayer online battle arena video game
5900
stealth
Remote Frame Buffer protocol (RFB),Virtual Network Computing (VNC) Remote Frame Buffer RFB protocol
6379
stealth
Redis key-value data store
8080
stealth
Alternative port for HTTP. See also ports 80 and 8008.,Apache Tomcat,Atlassian JIRA applications
11211
stealth
Used on VoIP networks for receiving and transmitting voice telephony traffic which includes Google Voice via the OBiTalk ATA devices as well as on the MagicJack and Vonage ATA network devices.,memcached
27017
stealth
Unturned, a survival game,Steam (matchmaking and HLTV),Steam (downloads),MongoDB daemon process (mongod) and routing service (mongos)