Port 5461SilkMeter License Server

SilkMeter is a proprietary license service used by legacy Borland/Segue Silk products, including SilkTest.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

Technical Details

what runs on :5461

Port 5461 is associated with the proprietary SilkMeter licensing service. Silk product clients communicate with a SilkMeter server for license validation or checkout; the service is not a general-purpose application protocol, and public documentation of its wire format and transport behavior is limited. IANA lists both TCP and UDP, so deployments and firewall rules may depend on the product version.

Security Information

exposure of :5461

risk score

2/ 10safe

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

network services averages 2.6 across 1,647 ports — this one sits 0.6 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 · udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

This is license infrastructure intended for clients that need access to the relevant Silk products, not a service that should normally be exposed to the internet. Restrict access to trusted client networks; the legacy, proprietary protocol should not be assumed to provide encryption or modern authentication protections.

Record

iana registry entry

port: :5461
service: SilkMeter License Server
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services
usage: SilkMeter runs as a license server for legacy Borland/Segue Silk products such as SilkTest; client software contacts it to validate or obtain licenses. It is uncommon on public networks and is more likely to appear on an internal software-development network.
lookups: 0rank 993
added: 2026-10-08
updated: 2026-10-08
references: IANA service name registry — port 5461

Something wrong?

This record is maintained by the engineers who use port 5461. 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 2026-10-08.

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edit this record →back to the registry

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :5461SilkMeter License Server

Technical Details

Security Information

Related Ports

Port 5461SilkMeter License Server