Port 566StreetTalk

StreetTalk directory service assigned to TCP and UDP port 566.

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

also known as VINES StreetTalk

Technical Details

what runs on :566

StreetTalk is assigned to both TCP and UDP port 566. It provides Banyan VINES clients with directory lookups for users, servers, and other network services; the protocol is specific to the legacy VINES environment and is not a general-purpose DNS replacement. Deployments are typically paired with other VINES services, including Banyan RPC-related traffic, and should be expected to use legacy, non-TLS protocol behavior.

Security Information

exposure of :566

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 1,603 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

StreetTalk traffic should not be exposed directly to the public internet. A reachable legacy directory service may disclose network names and account or service information, and its protocol should be treated as unauthenticated or weakly protected unless an enclosing VINES security mechanism is known to be present. Restrict it to the required legacy network segments and monitor for unexpected probes.

Record

iana registry entry

port: :566
service: StreetTalk
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services System
usage: StreetTalk is the distributed naming and directory service from Banyan VINES. Engineers are most likely to encounter this on legacy VINES systems or archival network appliances rather than modern internet-facing hosts.
lookups: 0rank 993
added: 2026-09-16
updated: 2026-09-22
references: IANA service name registry — port 566

Something wrong?

This record is maintained by the engineers who use port 566. 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.

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

Related Ports

all 1,603 in network services →

the 8 most looked-up other ports in network services — 1,603 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 :566StreetTalk

Technical Details

Security Information

Related Ports

Port 566StreetTalk