- 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 5557: Sandlab FARENET
Port 5557 is assigned by IANA to farenet (Sandlab FARENET).
5557
How farenet works
Other servicesThe client sends a request to port 5557 and the farenet 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 5557 dangerous?
We have no specific security note for port 5557. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 5557
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| farenet | 5557 | TCP | Sandlab FARENET | - | 2010-05-03 |
| - | 5557 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 5557, and is it reachable?
Linux
sudo ss -ltnup 'sport = :5557' # process listening on 5557
sudo lsof -nP -i :5557macOS
sudo lsof -nP -i :5557
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5557 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 5557 netstat -ano | findstr :5557
From another machine
nmap -p 5557 -sV <host> nc -zv <host> 5557
Block it in the firewall
sudo ufw deny 5557/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 5557" -Direction Inbound -LocalPort 5557 -Protocol TCP -Action Block # Windows
What is port 5557 used for?
Port 5557 is assigned by IANA to farenet (Sandlab FARENET).
Is port 5557 TCP or UDP?
Port 5557 is registered for TCP.
Is it safe to open port 5557?
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 5557 is open?
On Linux run "ss -ltnup 'sport = :5557'", on macOS "lsof -nP -i :5557", and on Windows "netstat -ano | findstr :5557" to see the local process. From another machine, "nmap -p 5557 <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