- Close the port if nothing on the host needs it.
- Identify the process that listens on it (commands below) before opening it in a firewall.
- Expose a service only to the networks that use it.
Port 16000: Administration Server Access
Port 16000 is assigned by IANA to fmsas (Administration Server Access).
16000
How fmsas works
Other servicesThe client sends a request to port 16000 and the fmsas service answers.
- Transport
- TCP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
- Other services
Is port 16000 dangerous?
We have no specific security note for port 16000. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 16000
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| fmsas | 16000 | TCP | Administration Server Access Reported: Known Unauthorized Use on port 16000 | - | 2010-10-06 |
| - | 16000 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 16000, and is it reachable?
Linux
sudo ss -ltnup 'sport = :16000' # process listening on 16000
sudo lsof -nP -i :16000macOS
sudo lsof -nP -i :16000
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 16000 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 16000 netstat -ano | findstr :16000
From another machine
nmap -p 16000 -sV <host> nc -zv <host> 16000
Block it in the firewall
sudo ufw deny 16000/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 16000" -Direction Inbound -LocalPort 16000 -Protocol TCP -Action Block # Windows
What is port 16000 used for?
Port 16000 is assigned by IANA to fmsas (Administration Server Access).
Is port 16000 TCP or UDP?
Port 16000 is registered for TCP.
Is it safe to open port 16000?
It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.
How do I check if port 16000 is open?
On Linux run "ss -ltnup 'sport = :16000'", on macOS "lsof -nP -i :16000", and on Windows "netstat -ano | findstr :16000" to see the local process. From another machine, "nmap -p 16000 <host>" shows whether it is reachable.
Other other services ports
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp