- 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 15999: ProGrammar Enterprise
Port 15999 is assigned by IANA to programmar (ProGrammar Enterprise).
15999
How programmar works
Other servicesThe client sends a request to port 15999 and the programmar 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 15999 dangerous?
We have no specific security note for port 15999. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 15999
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| programmar | 15999 | TCP | ProGrammar Enterprise | - | 2010-10-06 |
| - | 15999 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 15999, and is it reachable?
Linux
sudo ss -ltnup 'sport = :15999' # process listening on 15999
sudo lsof -nP -i :15999macOS
sudo lsof -nP -i :15999
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 15999 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 15999 netstat -ano | findstr :15999
From another machine
nmap -p 15999 -sV <host> nc -zv <host> 15999
Block it in the firewall
sudo ufw deny 15999/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 15999" -Direction Inbound -LocalPort 15999 -Protocol TCP -Action Block # Windows
What is port 15999 used for?
Port 15999 is assigned by IANA to programmar (ProGrammar Enterprise).
Is port 15999 TCP or UDP?
Port 15999 is registered for TCP.
Is it safe to open port 15999?
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 15999 is open?
On Linux run "ss -ltnup 'sport = :15999'", on macOS "lsof -nP -i :15999", and on Windows "netstat -ano | findstr :15999" to see the local process. From another machine, "nmap -p 15999 <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