Port 6300BMC GRX

Port 6300 is assigned to BMC GRX, a little-documented service registered to Portnoy Boxman.

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

Technical Details

what runs on :6300

BMC GRX is registered on port :6300 over tcp and udp to Portnoy Boxman. 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 :6300

this machine

# linux
sudo ss -tulpn 'sport = :6300'

# macos / bsd
sudo lsof -nP -i :6300

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :6300

another host

nmap -sV -p T:6300 <host>
sudo nmap -sU -sV -p U:6300 <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 :6300

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 :6300 yet

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

Record

iana registry entry

port: :6300
service: BMC GRX
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA lists BMC GRX on TCP and UDP port 6300 and names Portnoy Boxman as the registrant. Its protocol and deployments are not documented here, and it has not appeared open in nmap's internet-wide scan data.
lookups: 0rank 993
added: 2026-10-10
updated: 2026-10-10
references: IANA service name registry — port 6300

Something wrong?

This record is maintained by the engineers who use port 6300. 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 :6300, 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
:6262	Advantage Database Server	TCP	Databases	caution	10.5k
:6347	Gnutella Router Alternate Port	TCPUDP	File Transfer	caution	8.3k
:6343	sFlow Monitoring	UDP	Security	caution	7.1k
:6260	Planet M.U.L.E.	TCPUDP	Gaming	caution	4.8k
:6257	WinMX P2P Chat	UDP	File Transfer	caution	4.3k
:6306	Unified Fabric Management Protocol	TCPUDP	Network Services	safe	0

risk mix of the 8 listed

safe13%
caution88%

0 of 8 encrypted

Port :6300BMC GRX

Technical Details

Security Information

Related Ports

Port 6300BMC GRX