Port 5820OpenText AutoPass licensing

TCP port 5820 is assigned to the OpenText AutoPass licensing service.

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

also known as autopassdaemon

Technical Details

what runs on :5820

OpenText AutoPass licensing is registered on port :5820 over tcp to opentext, assigned June 2022. 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 :5820

this machine

# linux
sudo ss -tlpn 'sport = :5820'

# macos / bsd
sudo lsof -nP -i :5820

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :5820

another host

nmap -sV -p T:5820 <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 :5820

risk score

1/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

system averages 2.7 across 932 ports — this one sits 1.7 below.

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

every listening transport is another surface to filter at the edge

security overview

no security notes recorded for :5820 yet

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

Record

iana registry entry

port: :5820
service: OpenText AutoPass licensing
transport: TCP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: System
usage: This assignment identifies TCP port 5820 for AutoPass licensing software from OpenText. It is expected where OpenText products use an AutoPass licensing component, but public protocol details are not established here.
lookups: 0rank 993
added: 2026-09-14
updated: 2026-09-14
references: IANA service name registry — port 5820

Something wrong?

This record is maintained by the engineers who use port 5820. 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 2026-09-14.

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

all 932 in system →

the 8 most looked-up other ports in system — 932 ports carry that label.

port	service	proto	category	risk	views
:8888	Sun Answerbook & Alt HTTP	TCP	Web Services	caution	123.9k
:4664	Google Desktop Search	TCP	System	caution	67.2k
:8008	IBM HTTP Server Admin	TCP	Web Services	caution	58.3k
:3268	Microsoft Global Catalog (GC)	TCPUDP	Security	caution	54.6k
:135	Microsoft EPMAP	TCPUDP	Security	caution	51.9k
:9080	WebSphere HTTP Transport (default)	TCP	Web Services	caution	51.6k
:23	Telnet	TCP	Remote Access	caution	34.8k
:12489	NSClient Monitoring Agent	TCP	Network Services	caution	30.0k

risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :5820OpenText AutoPass licensing

Technical Details

Security Information

Related Ports

Port 5820OpenText AutoPass licensing