Port 375Hassle

Hassle is an obscure service assignment for TCP and UDP port 375.

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

Technical Details

what runs on :375

Hassle is registered on port :375 over tcp and udp to Reinhard Doelz. 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 :375

this machine

# linux
sudo ss -tulpn 'sport = :375'

# macos / bsd
sudo lsof -nP -i :375

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :375

another host

nmap -sV -p T:375 <host>
sudo nmap -sU -sV -p U:375 <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 :375

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 :375 yet

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

Record

iana registry entry

port: :375
service: Hassle
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: The IANA registry assigns TCP and UDP port 375 to the Hassle service. The assignment is registered to Reinhard Doelz, with no registration date or additional notes recorded.
lookups: 0rank 993
added: 2026-08-27
updated: 2026-08-27
references: IANA service name registry — port 375

Something wrong?

This record is maintained by the engineers who use port 375. 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 :375, by lookups.

port	service	proto	category	risk	views
:311	Mac OS X Server Admin	TCP	Web Services	caution	23.7k
:427	Service Location Protocol	TCPUDP	Network Services	caution	14.6k
:384	Remote Server System	TCPUDP	Remote Access	caution	11.5k
:383	HP Data Alarm Manager	TCPUDP	Network Services	caution	11.1k
:369	RPC2 Port Mapper	TCPUDP	Network Services	caution	11.1k
:402	Altiris Deployment Client	TCP	Network Services	caution	10.2k
:370	SecureCast	TCPUDP	Security	caution	10.0k
:350	MATIP Type A	TCPUDP	Network Services	caution	9.3k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :375Hassle

Technical Details

Security Information

Related Ports

Port 375Hassle