Port 5053RLM License Server

RLM License Server uses TCP port 5053 for software license management.

transport: tcp
in transit: cleartext
assignment: official
risk: 1/10
lookups: 0

also known as rlm

Technical Details

what runs on :5053

no technical write-up for :5053 yet

the handshake, the implementations you meet in the wild, the flags that matter. we have the registry entry — the detail comes from the engineers who run it.

add technical details

Security Information

exposure of :5053

risk score

1/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

network services averages 2.8 across 1,157 ports — this one sits 1.8 below.

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

no security notes recorded for :5053 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :5053
service: RLM License Server
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: Network Services
usage: TCP port 5053 is assigned to the RLM License Server. IANA identifies the registrant as Matt Christiano 2, but provides no further deployment or protocol details.
lookups: 0rank 994
added: 2026-09-14
updated: 2026-09-14
references: IANA service name registry — port 5053

Something wrong?

This record is maintained by the engineers who use port 5053. 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 2026-09-14.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :5053RLM License Server

Technical Details

Security Information

Related Ports

Port 5053RLM License Server