- 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 16385: Reliable Datagram Sockets
Port 16385 is assigned by IANA to rdgs (Reliable Datagram Sockets).
16385
How rdgs works
Other servicesThe client sends a request to port 16385 and the rdgs 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 16385 dangerous?
We have no specific security note for port 16385. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 16385
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| rdgs | 16385 | TCP | Reliable Datagram Sockets | - | 2015-04-30 |
| - | 16385 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 16385, and is it reachable?
Linux
sudo ss -ltnup 'sport = :16385' # process listening on 16385
sudo lsof -nP -i :16385macOS
sudo lsof -nP -i :16385
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 16385 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 16385 netstat -ano | findstr :16385
From another machine
nmap -p 16385 -sV <host> nc -zv <host> 16385
Block it in the firewall
sudo ufw deny 16385/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 16385" -Direction Inbound -LocalPort 16385 -Protocol TCP -Action Block # Windows
What is port 16385 used for?
Port 16385 is assigned by IANA to rdgs (Reliable Datagram Sockets).
Is port 16385 TCP or UDP?
Port 16385 is registered for TCP.
Is it safe to open port 16385?
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 16385 is open?
On Linux run "ss -ltnup 'sport = :16385'", on macOS "lsof -nP -i :16385", and on Windows "netstat -ano | findstr :16385" to see the local process. From another machine, "nmap -p 16385 <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