Port 10100VERITAS ITAP DDTP

TCP/UDP 10100 is assigned to VERITAS ITAP DDTP, an obscure service with no broadly documented deployment.

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

Technical Details

what runs on :10100

VERITAS ITAP DDTP is registered on port :10100 over tcp and udp to Saugata Guha, assigned May 2004. 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 :10100

this machine

# linux
sudo ss -tulpn 'sport = :10100'

# macos / bsd
sudo lsof -nP -i :10100

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :10100

another host

nmap -sV -p T:10100 <host>
sudo nmap -sU -sV -p U:10100 <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 :10100

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 :10100 yet

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

Record

iana registry entry

port: :10100
service: VERITAS ITAP DDTP
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA lists TCP and UDP port 10100 for VERITAS ITAP DDTP, registered to Saugata Guha in 2004. The assignment does not identify a widely documented product or deployment.
lookups: 0rank 993
added: 2026-10-16
updated: 2026-10-16
references: IANA service name registry — port 10100

Something wrong?

This record is maintained by the engineers who use port 10100. 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 2026-10-16.

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 :10100, by lookups.

port	service	proto	category	risk	views
:10051	Zabbix Trapper	TCPUDP	Network Services	caution	9.6k
:10050	Zabbix Agent	TCPUDP	Security	caution	7.8k
:10116	NetIQ VoIP Assessor	TCPUDP	Network Services	caution	5.0k
:10114	NetIQ Qcheck	TCPUDP	Network Services	caution	4.6k
:10115	NetIQ Endpoint	TCPUDP	Security	caution	4.4k
:10113	NetIQ Endpoint	TCPUDP	Security	caution	4.3k
:10081	FAM Archive Server	TCPUDP	—	safe	0
:10080	Amanda	TCPUDP	File Transfer	risk	0

risk mix of the 8 listed

safe13%
caution75%
risk13%

0 of 8 encrypted

Port :10100VERITAS ITAP DDTP

Technical Details

Security Information

Related Ports

Port 10100VERITAS ITAP DDTP