Port 7003AFS Volume Location Server

AFS Volume Location Server traffic, used to map AFS volumes to the fileservers hosting them.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 4/10
lookups: 0

also known as afs3-vlserver, vlserver, AFS VLDB server

Technical Details

what runs on :7003

The service uses the AFS Rx remote procedure call protocol and is registered on both UDP and TCP port 7003, although AFS deployments commonly use Rx over UDP. It returns volume-name and volume-ID mappings to fileserver sites; authenticated administrative operations modify the database. Related AFS ports include 7000 for the fileserver, 7001 for callbacks, 7002 for the protection server, 7005 for the volume server, and 7007 for the Basic OverSeer (BOS) server.

Security Information

exposure of :7003

risk score

4/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

network services averages 3.5 across 754 ports — this one sits 0.5 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 · udp

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

security overview

This service is normally deployed only on trusted AFS infrastructure, not exposed directly to the Internet. Public exposure can disclose filesystem and volume-location metadata and permits attackers to probe the AFS RPC and authentication surface; database changes require appropriate administrative authentication.

Record

iana registry entry

port: :7003
service: AFS Volume Location Server
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 4/10caution
category: Network Services System
usage: OpenAFS and other AFS deployments use this service as the Volume Location Database (VLDB) server. AFS clients and administration tools query it to locate volume replicas, while privileged tools update volume-location records.
lookups: 0rank 994
added: 2026-08-26
updated: 2026-08-26
references: IANA service name registry — port 7003

Something wrong?

This record is maintained by the engineers who use port 7003. 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 2026-08-26.

01edit any field on a page of its own
02a model checks it for accuracy and spam
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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 :7003AFS Volume Location Server

Technical Details

Security Information

Related Ports

Port 7003AFS Volume Location Server