- 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 |
|---|---|---|---|---|
| 1686 | cvmon cvmon | TCP UDP | - | - |
| 1687 | nsjtp-ctrl nsjtp-ctrl | TCP UDP | - | - |
| 1688 | nsjtp-data nsjtp-data | TCP UDP | - | - |
| 1689 | firefox firefox | TCP UDP | - | - |
| 1690 | ng-umds ng-umds | TCP UDP | - | - |
| 1691 | empire-empuma empire-empuma | TCP UDP | - | - |
| 1692 | sstsys-lm sstsys-lm | TCP UDP | - | - |
| 1693 | rrirtr rrirtr | TCP UDP | - | - |
| 1694 | rrimwm rrimwm | TCP UDP | - | - |
| 1695 | rrilwm rrilwm | TCP UDP | - | - |
| 1696 | rrifmm rrifmm | TCP UDP | - | - |
| 1697 | rrisat rrisat | TCP UDP | - | - |
| 1698 | RSVP-ENCAPSULATION-1 rsvp-encap-1 | TCP UDP | - | - |
| 1699 | RSVP-ENCAPSULATION-2 rsvp-encap-2 | TCP UDP | - | - |
| 1700 | mps-raft mps-raft | TCP UDP | - | - |
| 1701 | l2f l2f, l2tp | TCP UDP | - | - |
| 1702 | deskshare deskshare | TCP UDP | - | - |
| 1703 | hb-engine hb-engine | TCP UDP | - | - |
| 1704 | bcs-broker bcs-broker | TCP UDP | - | - |
| 1705 | slingshot slingshot | TCP UDP | - | - |
| 1706 | jetform jetform | TCP UDP | - | - |
| 1707 | vdmplay vdmplay | TCP UDP | - | - |
| 1708 | gat-lmd gat-lmd | TCP UDP | - | - |
| 1709 | centra centra | TCP UDP | - | - |
| 1710 | impera impera | TCP UDP | - | - |
| 1711 | pptconference pptconference | TCP UDP | - | - |
| 1712 | resource monitoring service registrar | TCP UDP | - | - |
| 1713 | ConferenceTalk conferencetalk | TCP UDP | - | - |
| 1714 | sesi-lm sesi-lm | TCP UDP | - | - |
| 1715 | houdini-lm houdini-lm | TCP UDP | - | - |
| 1716 | xmsg xmsg | TCP UDP | - | - |
| 1717 | fj-hdnet fj-hdnet | TCP UDP | - | - |
| 1721 | caicci caicci | TCP UDP | - | - |
| 1722 | HKS License Manager hks-lm | TCP UDP | - | - |
| 1724 | csbphonemaster csbphonemaster | TCP UDP | - | - |
| 1725 | iden-ralp iden-ralp | TCP UDP | - | - |
| 1726 | IBERIAGAMES iberiagames | TCP UDP | - | - |
| 1727 | winddx winddx | TCP UDP | - | - |
| 1728 | TELINDUS telindus | TCP UDP | - | - |
| 1729 | CityNL License Management citynl | TCP UDP | - | - |
| 1730 | roketz roketz | TCP UDP | - | - |
| 1731 | MSICCP msiccp | TCP UDP | - | - |
| 1732 | proxim proxim | TCP UDP | - | - |
| 1733 | SIMS - SIIPAT Protocol for Alarm Transmission siipat | TCP UDP | - | - |
| 1734 | Camber Corporation License Management cambertx-lm | TCP UDP | - | - |
| 1735 | PrivateChat privatechat | TCP UDP | - | - |
| 1737 | ultimad ultimad | TCP UDP | - | - |
| 1738 | GameGen1 gamegen1 | TCP UDP | - | - |
| 1739 | webaccess webaccess | TCP UDP | - | - |
| 1740 | encore encore | TCP UDP | - | - |
| 1741 | cisco-net-mgmt cisco-net-mgmt | TCP UDP | - | - |
| 1742 | 3Com-nsd 3Com-nsd | TCP UDP | - | - |
| 1743 | Cinema Graphics License Manager cinegrfx-lm | TCP UDP | - | - |
| 1744 | ncpm-ft ncpm-ft | TCP UDP | - | - |
| 1745 | remote-winsock remote-winsock | TCP UDP | - | - |
| 1746 | ftrapid-1 ftrapid-1 | TCP UDP | - | - |
| 1747 | ftrapid-2 ftrapid-2 | TCP UDP | - | - |
| 1749 | aspen-services aspen-services | TCP UDP | - | - |
| 1750 | Simple Socket Library's PortMaster sslp | TCP UDP | - | - |
| 1751 | SwiftNet swiftnet | TCP UDP | - | - |
| 1752 | Leap of Faith Research License Manager lofr-lm | TCP UDP | - | - |
| 1753 | Predatar Comms Service predatar-comms | TCP | - | - |
| 1755 | ms-streaming ms-streaming | TCP UDP | - | - |
| 1756 | capfast-lmd capfast-lmd | TCP UDP | - | - |
| 1757 | cnhrp cnhrp | TCP UDP | - | - |
| 1759 | SPSS License Manager spss-lm | TCP UDP | - | - |
| 1761 | cft-0 cft-0 | TCP UDP | - | - |
| 1762 | cft-1 cft-1 | TCP UDP | - | - |
| 1763 | cft-2 cft-2 | TCP UDP | - | - |
| 1764 | cft-3 cft-3 | TCP UDP | - | - |
| 1765 | cft-4 cft-4 | TCP UDP | - | - |
| 1766 | cft-5 cft-5 | TCP UDP | - | - |
| 1767 | cft-6 cft-6 | TCP UDP | - | - |
| 1768 | cft-7 cft-7 | TCP UDP | - | - |
| 1769 | bmc-net-adm bmc-net-adm | TCP UDP | - | - |
| 1770 | bmc-net-svc bmc-net-svc | TCP UDP | - | - |
| 1771 | vaultbase vaultbase | TCP UDP | - | - |
| 1772 | EssWeb Gateway essweb-gw | TCP UDP | - | - |
| 1773 | KMSControl kmscontrol | TCP UDP | - | - |
| 1774 | global-dtserv global-dtserv | TCP UDP | - | - |
| 1775 | data interchange between visual processing containers vdab | TCP | - | - |
| 1776 | Federal Emergency Management Information System femis | TCP UDP | - | - |
| 1777 | powerguardian powerguardian | TCP UDP | - | - |
| 1778 | prodigy-internet prodigy-intrnet | TCP UDP | - | - |
| 1779 | pharmasoft pharmasoft | TCP UDP | - | - |
| 1780 | dpkeyserv dpkeyserv | TCP UDP | - | - |
| 1781 | answersoft-lm answersoft-lm | TCP UDP | - | - |
| 1782 | hp-hcip hp-hcip | TCP UDP | - | - |
| 1784 | Finle License Manager finle-lm | TCP UDP | - | - |
| 1785 | Wind River Systems License Manager windlm | TCP UDP | - | - |
| 1786 | funk-logger funk-logger | TCP UDP | - | - |
| 1787 | funk-license funk-license | TCP UDP | - | - |
| 1788 | psmond psmond | TCP UDP | - | - |
| 1789 | hello hello | TCP UDP | - | - |
| 1791 | EA1 ea1 | TCP UDP | - | - |
| 1792 | ibm-dt-2 ibm-dt-2 | TCP UDP | - | - |
| 1793 | rsc-robot rsc-robot | TCP UDP | - | - |
| 1794 | cera-bcm cera-bcm | TCP UDP | - | - |
| 1796 | Vocaltec Server Administration vocaltec-admin | TCP UDP | - | - |
| 1797 | UMA uma | 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