Port 8083Utilistor Server

Utilistor Server uses TCP or UDP port 8083.

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

also known as us-srv

Technical Details

what runs on :8083

Utilistor Server is registered on port :8083 over tcp and udp to Andy Brewerton, assigned August 2005. We don't have a technical write-up for it beyond the IANA registry entry.

In nmap's internet-wide scan data this port is found open rarely. What's listening is often not the registered service, so check before you assume.

find what's listening on :8083

this machine

# linux
sudo ss -tulpn 'sport = :8083'

# macos / bsd
sudo lsof -nP -i :8083

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :8083

another host

nmap -sV -p T:8083 <host>
sudo nmap -sU -sV -p U:8083 <host>

run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.

add technical details

Security Information

exposure of :8083

risk score

1/ 10safe

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

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

no security notes recorded for :8083 yet

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

Record

iana registry entry

port: :8083
service: Utilistor Server
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: The IANA assignment identifies TCP and UDP port 8083 as the server port for Utilistor. The registration is held by Andy Brewerton; public deployment details are not documented in the registry.
lookups: 0rank 993
added: 2026-08-27
updated: 2026-08-27
references: IANA service name registry — port 8083

Something wrong?

This record is maintained by the engineers who use port 8083. 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 2026-08-27.

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

Related Ports

browse categories →

ports registered around :8083, by lookups.

port	service	proto	category	risk	views
:8080	HTTP Alternate	TCP	Web Services	caution	44.9k
:8080	Apache Tomcat	TCP	Web Services	caution	28.0k
:8090	HTTP Alternate	TCP	Web Services	caution	27.6k
:8080	FilePhile Relay	UDP	File Transfer	caution	25.6k
:8081	HTTP Alternate Port	TCP	Web Services	caution	23.3k
:8086	Kaspersky Control Center	TCP	Security	caution	14.1k
:8086	HELM Control Panel	TCP	Web Services	caution	11.7k
:8087	Kaspersky AV Control Center	UDP	Security	caution	10.5k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :8083Utilistor Server

Technical Details

Security Information

Related Ports

Port 8083Utilistor Server