Remote access ports
Overview
Remote access ports are continuous targets for credential attacks. Prefer a VPN or bastion, disable password login where possible, and limit source addresses.
Ports in this category29
Range coveredAll registry ranges
All Remote access port numbers
Every port below is assigned to this category in the registry or by a widely used convention. Open a port for its check and block commands, risk rating and troubleshooting notes.
| Port | Service | Transport | Risk | Description |
|---|---|---|---|---|
| 22 | SSH | TCP / UDP / SCTP | Medium | The Secure Shell (SSH) Protocol |
| 23 | TELNET | TCP / UDP | High | Telnet |
| 89 | SU-MIT-TG | TCP / UDP | Standard/Low | SU/MIT Telnet Gateway |
| 107 | RTELNET | TCP / UDP | Standard/Low | Remote Telnet Service |
| 221 | FLN-SPX | TCP / UDP | Standard/Low | Berkeley rlogind with SPX auth |
| 512 | EXEC | TCP / UDP | High | remote process execution; authentication performed using passwords and UNIX login names |
| 513 | LOGIN | TCP / UDP | High | remote login a la telnet; automatic authentication performed based on priviledged port numbers and distributed data bases which identify "authentication domains" |
| 541 | UUCP-RLOGIN | TCP / UDP | Standard/Low | uucp-rlogin |
| 614 | SSHELL | TCP / UDP | Standard/Low | SSLshell |
| 830 | NETCONF-SSH | TCP / UDP | Standard/Low | NETCONF over SSH |
| 992 | TELNETS | TCP / UDP | Standard/Low | telnet protocol over TLS/SSL |
| 1973 | DLSRAP | TCP / UDP | Standard/Low | Data Link Switching Remote Access Protocol |
| 2179 | VMRDP | TCP / UDP | Standard/Low | Microsoft RDP for virtual machines |
| 2564 | HP-3000-TELNET | TCP / UDP | Standard/Low | HP 3000 NS/VT block mode telnet |
| 2654 | COREL-VNCADMIN | TCP / UDP | Standard/Low | Corel VNC Admin IANA assigned this well-formed service name as a replacement for "corel_vncadmin". |
| 3389 | MS-WBT-SERVER | TCP / UDP | High | MS WBT Server |
| 3454 | MIRA | TCP / UDP | Standard/Low | Apple Remote Access Protocol |
| 3533 | RAVEN-RDP | TCP / UDP | Standard/Low | Raven Remote Management Data |
| 3897 | SDO-SSH | TCP / UDP | Standard/Low | Simple Distributed Objects over SSH |
| 5313 | RRDP | TCP / UDP | Standard/Low | Real-time & Reliable Data |
| 5900 | RFB | TCP / UDP | High | Remote Framebuffer |
| 7903 | TNOS-DPS | TCP / UDP | Standard/Low | TNOS Secure DiaguardProtocol |
| 9555 | TRISPEN-SRA | TCP / UDP | Standard/Low | Trispen Secure Remote Access |
| 11110 | SGI-SOAP | TCP | Standard/Low | Data migration facility (DMF) SOAP is a web server protocol to support remote access to DMF |
| 17224 | TRDP-PD | UDP | Standard/Low | Train Realtime Data Protocol (TRDP) Process Data |
| 17225 | TRDP-MD | TCP / UDP | Standard/Low | Train Realtime Data Protocol (TRDP) Message Data |
| 17235 | SSH-MGMT | TCP / UDP | Standard/Low | SSH Tectia Manager |
| 21800 | TVPM | TCP / UDP | Standard/Low | TVNC Pro Multiplexing |
| 22222 | EASYENGINE | TCP | Standard/Low | EasyEngine is CLI tool to manage WordPress Sites on Nginx server |
Other categories
Authentication and access 19Caching and in-memory stores 10Containers and orchestration 10DNS and naming 10Databases 54Development servers 13Directory services 14Email 26File transfer and sharing 27Gaming 6Infrastructure and administration 30IoT and device telemetry 7Message queues and streaming 17Monitoring and metrics 29Networking and proxies 31Printing 19RPC and service APIs 14Time synchronization 10VPN and tunnelling 10Voice and real-time media 29Web and HTTP 62Windows networking 14
Primary data: IANA Service Name and Transport Protocol Port Number Registry, plus clearly marked community conventions.
Last reviewed 2026-10-30 · Methodology · About · Privacy