Port 6355PMCS applications

Port 6355 is assigned to PMCS applications, a little-documented service registered by Pavel Mendl.

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

Technical Details

what runs on :6355

PMCS applications is registered on port :6355 over tcp and udp to Pavel Mendl, assigned March 2007. 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 never observed open, so if it's open on your network it's more likely a custom or misconfigured service than the registered one.

find what's listening on :6355

this machine

# linux
sudo ss -tulpn 'sport = :6355'

# macos / bsd
sudo lsof -nP -i :6355

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :6355

another host

nmap -sV -p T:6355 <host>
sudo nmap -sU -sV -p U:6355 <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 :6355

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 :6355 yet

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

Record

iana registry entry

port: :6355
service: PMCS applications
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA assigns TCP and UDP port 6355 to PMCS applications. Pavel Mendl registered the assignment in 2007; no widely documented implementation or common deployment is known.
lookups: 0rank 993
added: 2026-10-10
updated: 2026-10-10
references: IANA service name registry — port 6355

Something wrong?

This record is maintained by the engineers who use port 6355. 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 2026-10-10.

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 :6355, by lookups.

port	service	proto	category	risk	views
:6346	Gnutella P2P	TCPUDP	File Transfer	caution	13.6k
:6350	ADAP	TCPUDP	Network Services	caution	13.5k
:6347	Gnutella Router Alternate Port	TCPUDP	File Transfer	caution	8.3k
:6343	sFlow Monitoring	UDP	Security	caution	7.1k
:6389	EMC CLARiiON	TCP	Databases	caution	4.9k
:6320	Double-Take Replication Service	TCPUDP	System	safe	0
:6405	SAP BusinessObjects Enterprise internal server		System	safe	0
:6306	Unified Fabric Management Protocol	TCPUDP	Network Services	safe	0

risk mix of the 8 listed

safe38%
caution63%

0 of 8 encrypted

Port :6355PMCS applications

Technical Details

Security Information

Related Ports

Port 6355PMCS applications