Port 6788SMC-HTTP

SMC-HTTP is an obscure TCP/UDP service assignment on port 6788 with no widely documented public protocol.

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

Technical Details

what runs on :6788

SMC-HTTP is registered on port :6788 over tcp and udp to Ratnadeep Bhattachar, assigned November 2002. 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 :6788

this machine

# linux
sudo ss -tulpn 'sport = :6788'

# macos / bsd
sudo lsof -nP -i :6788

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :6788

another host

nmap -sV -p T:6788 <host>
sudo nmap -sU -sV -p U:6788 <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 :6788

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 :6788 yet

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

Record

iana registry entry

port: :6788
service: SMC-HTTP
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA lists TCP and UDP port 6788 under SMC-HTTP. The assignment was registered by Ratnadeep Bhattachar on 2002-11-01; public deployment and protocol behavior are not established.
lookups: 0rank 993
added: 2026-08-30
updated: 2026-08-30
references: IANA service name registry — port 6788

Something wrong?

This record is maintained by the engineers who use port 6788. 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 2026-08-30.

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 :6788, by lookups.

port	service	proto	category	risk	views
:6771	Polycom Broadcast	UDP	Network Services	caution	13.2k
:6789	LoggerNet Datalogger	TCP	Network Services	caution	9.2k
:6767	BMC Perform Agent	TCPUDP	System	safe	0
:6842	Netmo HTTP	TCPUDP	Web Services	safe	0
:6850	ICCRUSHMORE	TCPUDP	—	safe	0

risk mix of the 5 listed

safe60%
caution40%

0 of 5 encrypted

Port :6788SMC-HTTP

Technical Details

Security Information

Related Ports

Port 6788SMC-HTTP