- 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 4411: Found Messaging Protocol
Port 4411 is assigned by IANA to found (Found Messaging Protocol).
4411
How found works
Other servicesThe client sends a request to port 4411 and the found 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 4411 dangerous?
We have no specific security note for port 4411. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 4411
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| found | 4411 | TCP | Found Messaging Protocol | - | 2012-04-11 |
| - | 4411 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 4411, and is it reachable?
Linux
sudo ss -ltnup 'sport = :4411' # process listening on 4411
sudo lsof -nP -i :4411macOS
sudo lsof -nP -i :4411
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4411 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 4411 netstat -ano | findstr :4411
From another machine
nmap -p 4411 -sV <host> nc -zv <host> 4411
Block it in the firewall
sudo ufw deny 4411/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 4411" -Direction Inbound -LocalPort 4411 -Protocol TCP -Action Block # Windows
What is port 4411 used for?
Port 4411 is assigned by IANA to found (Found Messaging Protocol).
Is port 4411 TCP or UDP?
Port 4411 is registered for TCP.
Is it safe to open port 4411?
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 4411 is open?
On Linux run "ss -ltnup 'sport = :4411'", on macOS "lsof -nP -i :4411", and on Windows "netstat -ano | findstr :4411" to see the local process. From another machine, "nmap -p 4411 <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