- Close the port if nothing on the host needs it.
- Identify the process that listens on it (commands below) before opening it in a firewall.
- Expose a service only to the networks that use it.
Other services ports
Registered services that fit no other category. 4,970 ports, most common first.
| Port | Service | Transport | Risk | Encryption |
|---|---|---|---|---|
| 627 | PassGo Tivoli passgo-tivoli | TCP UDP | - | - |
| 628 | QMQP qmqp | TCP UDP | - | - |
| 629 | 3Com AMP3 3com-amp3 | TCP UDP | - | - |
| 630 | RDA rda | TCP UDP | - | - |
| 632 | bmpp bmpp | TCP UDP | - | - |
| 633 | Service Status update (Sterling Software) servstat | TCP UDP | - | - |
| 634 | ginad ginad | TCP UDP | - | - |
| 637 | lanserver lanserver | TCP UDP | - | - |
| 638 | mcns-sec mcns-sec | TCP UDP | - | - |
| 639 | MSDP msdp | TCP UDP | - | - |
| 640 | entrust-sps entrust-sps | TCP UDP | - | - |
| 641 | repcmd repcmd | TCP UDP | - | - |
| 642 | ESRO-EMSDP V1.3 esro-emsdp | TCP UDP | - | - |
| 643 | SANity sanity | TCP UDP | - | - |
| 644 | dwr dwr | TCP UDP | - | - |
| 645 | PSSC pssc | TCP UDP | - | - |
| 646 | LDP ldp | TCP UDP | - | - |
| 648 | Registry Registrar Protocol (RRP) rrp | TCP UDP | - | - |
| 649 | Cadview-3d - streaming 3d models over the internet cadview-3d | TCP UDP | - | - |
| 650 | OBEX obex | TCP UDP | - | - |
| 652 | HELLO_PORT hello-port | TCP UDP | - | - |
| 653 | RepCmd repscmd | TCP UDP | - | - |
| 654 | AODV aodv | TCP UDP | - | - |
| 655 | TINC tinc | TCP UDP | - | - |
| 656 | SPMP spmp | TCP UDP | - | - |
| 657 | RMC rmc | TCP UDP | - | - |
| 658 | TenFold tenfold | TCP UDP | - | - |
| 660 | MacOS Server Admin mac-srvr-admin | TCP UDP | - | - |
| 661 | HAP hap | TCP UDP | - | - |
| 662 | PFTP pftp | TCP UDP | - | - |
| 663 | PureNoise purenoise | TCP UDP | - | - |
| 664 | ASF Secure Remote Management and Control Protocol asf-secure-rmcp, oob-ws-https | UDP TCP | - | - |
| 665 | Sun DR sun-dr | TCP UDP | - | - |
| 667 | campaign contribution disclosures - SDR Technologies disclose | TCP UDP | - | - |
| 668 | MeComm mecomm | TCP UDP | - | - |
| 669 | MeRegister meregister | TCP UDP | - | - |
| 670 | VACDSM-SWS vacdsm-sws | TCP UDP | - | - |
| 671 | VACDSM-APP vacdsm-app | TCP UDP | - | - |
| 672 | VPPS-QUA vpps-qua | TCP UDP | - | - |
| 673 | CIMPLEX cimplex | TCP UDP | - | - |
| 674 | ACAP acap | TCP UDP | - | - |
| 675 | DCTP dctp | TCP UDP | - | - |
| 676 | VPPS Via vpps-via | TCP UDP | - | - |
| 678 | GNU Generation Foundation NCP ggf-ncp | TCP UDP | - | - |
| 679 | MRM mrm | TCP UDP | - | - |
| 680 | entrust-aaas entrust-aaas | TCP UDP | - | - |
| 681 | entrust-aams entrust-aams | TCP UDP | - | - |
| 682 | XFR xfr | TCP UDP | - | - |
| 683 | CORBA IIOP corba-iiop | TCP UDP | - | - |
| 684 | CORBA IIOP SSL corba-iiop-ssl | TCP UDP | - | - |
| 685 | MDC Port Mapper mdc-portmapper | TCP UDP | - | - |
| 686 | Hardware Control Protocol Wismar hcp-wismar | TCP UDP | - | - |
| 687 | asipregistry asipregistry | TCP UDP | - | - |
| 688 | ApplianceWare managment protocol realm-rusd | TCP UDP | - | - |
| 689 | NMAP nmap | TCP UDP | - | - |
| 690 | Velneo Application Transfer Protocol vatp | TCP UDP | - | - |
| 692 | Hyperwave-ISP hyperwave-isp | TCP UDP | - | - |
| 693 | almanid Connection Endpoint connendp | TCP UDP | - | - |
| 696 | RUSHD rushd | TCP UDP | - | - |
| 697 | UUIDGEN uuidgen | TCP UDP | - | - |
| 698 | OLSR olsr | TCP UDP | - | - |
| 699 | Access Network accessnetwork | TCP UDP | - | - |
| 700 | Extensible Provisioning Protocol epp | TCP UDP | - | - |
| 701 | Link Management Protocol (LMP) lmp | TCP UDP | - | - |
| 702 | IRIS over BEEP iris-beep | TCP UDP | - | - |
| 704 | errlog copy/server daemon elcsd | TCP UDP | - | - |
| 706 | SILC silc | TCP UDP | - | - |
| 707 | Borland DSJ borland-dsj | TCP UDP | - | - |
| 709 | Entrust Key Management Service Handler entrust-kmsh | TCP UDP | - | - |
| 710 | Entrust Administration Service Handler entrust-ash | TCP UDP | - | - |
| 711 | Cisco TDP cisco-tdp | TCP UDP | - | - |
| 712 | TBRPF tbrpf | TCP UDP | - | - |
| 713 | IRIS over XPC iris-xpc | TCP UDP | - | - |
| 714 | IRIS over XPCS iris-xpcs | TCP UDP | - | - |
| 715 | IRIS-LWZ iris-lwz | TCP UDP | - | - |
| 716 | PANA Messages pana | UDP | - | - |
| 729 | IBM NetView DM/6000 Server/Client netviewdm1 | TCP UDP | - | - |
| 730 | IBM NetView DM/6000 send/tcp netviewdm2 | TCP UDP | - | - |
| 731 | IBM NetView DM/6000 receive/tcp netviewdm3 | TCP UDP | - | - |
| 741 | netGW netgw | TCP UDP | - | - |
| 742 | Network based Rev. Cont. Sys. netrcs | TCP UDP | - | - |
| 744 | Flexible License Manager flexlm | TCP UDP | - | - |
| 747 | Fujitsu Device Control fujitsu-dev | TCP UDP | - | - |
| 748 | Russell Info Sci Calendar Manager ris-cm | TCP UDP | - | - |
| 751 | pump | TCP UDP | - | - |
| 752 | qrh | TCP UDP | - | - |
| 753 | rrh | TCP UDP | - | - |
| 754 | send tell | TCP UDP | - | - |
| 758 | nlogin | TCP UDP | - | - |
| 759 | con | TCP UDP | - | - |
| 760 | ns | TCP UDP | - | - |
| 761 | rxe | TCP UDP | - | - |
| 762 | quotad | TCP UDP | - | - |
| 763 | cycleserv | TCP UDP | - | - |
| 764 | omserv | TCP UDP | - | - |
| 765 | webster | TCP UDP | - | - |
| 769 | vid | TCP UDP | - | - |
| 770 | cadlock | TCP UDP | - | - |
| 771 | rtip | TCP UDP | - | - |
| 772 | cycleserv2 | TCP UDP | - | - |
Securing other services services
Other port categories
Web /tools/ports/category/web Remote access /tools/ports/category/remote-access File transfer & sharing /tools/ports/category/file-transfer Email /tools/ports/category/email Databases & caches /tools/ports/category/databases Directory & authentication /tools/ports/category/directory-auth Network services /tools/ports/category/network-services VPN, tunnels & proxies /tools/ports/category/vpn-tunnels Messaging & queues /tools/ports/category/messaging Voice & chat /tools/ports/category/voice-chat Media & streaming /tools/ports/category/media IoT & industrial (ICS) /tools/ports/category/iot-ics DevOps, cloud & containers /tools/ports/category/devops Monitoring & logging /tools/ports/category/monitoring Gaming /tools/ports/category/gaming