Port 8181InterMapper

TCP 8181 is assigned to the InterMapper network management system.

transport: tcp
in transit: cleartext
assignment: official
risk: 6/10
lookups: 0

Technical Details

what runs on :8181

TCP 8181 is the InterMapper server's configurable web and remote-access endpoint. In typical deployments it behaves as an HTTP-based application service rather than a distinctive binary protocol: a client establishes TCP, sends an HTTP request, and receives the InterMapper monitoring or administration interface. The exact paths, authentication behavior, and any TLS or alternate listener depend on the InterMapper version and configuration.

Security Information

exposure of :8181

risk score

6/ 10risk

treat as sensitive. widely scanned and regularly exploited when reachable — restrict it to known sources.

network services averages 2.6 across 1,684 ports — this one sits 3.4 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

tcp

every listening transport is another surface to filter at the edge

security overview

This port can expose network maps, device names, status information, alerts, and administrative functions. It should normally be restricted to management networks or a VPN; do not publish it directly to the internet, particularly when the listener is using cleartext HTTP, and protect access with strong authentication and TLS where supported.

Record

iana registry entry

port: :8181
service: InterMapper
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 6/10risk
category: Network Services
usage: InterMapper is network monitoring and management software that collects device status and presents maps, alerts, and reports. A deployed InterMapper server commonly listens on TCP 8181 for browser-based administration and monitoring access.
lookups: 0rank 993
added: 2026-08-30
updated: 2026-09-22
references: IANA service name registry — port 8181

Something wrong?

This record is maintained by the engineers who use port 8181. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-09-22.

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edit this record →back to the registry

Related Ports

all 1,684 in network services →

the 8 most looked-up other ports in network services — 1,684 ports carry that label.

port	service	proto	category	risk	views
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:6543	Jetnet	UDP	Network Services	caution	65.3k
:5938	TeamViewer	TCPUDP	Remote Access	caution	65.0k
:8291	Winbox MikroTik Admin	TCP	Security	caution	62.9k
:3233	WhiskerControl Protocol	TCPUDP	Network Services	caution	61.9k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:3128	Tatsoft Default HTTP Proxy	TCP	Web Services	caution	46.8k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :8181InterMapper

Technical Details

Security Information

Related Ports

Port 8181InterMapper