- 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 17555: Ailith management of routers
Port 17555 is assigned by IANA to ailith (Ailith management of routers).
17555
How ailith works
Other servicesThe client sends a request to port 17555 and the ailith 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 17555 dangerous?
We have no specific security note for port 17555. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 17555
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| ailith | 17555 | TCP | Ailith management of routers | - | 2014-03-27 |
| - | 17555 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 17555, and is it reachable?
Linux
sudo ss -ltnup 'sport = :17555' # process listening on 17555
sudo lsof -nP -i :17555macOS
sudo lsof -nP -i :17555
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 17555 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 17555 netstat -ano | findstr :17555
From another machine
nmap -p 17555 -sV <host> nc -zv <host> 17555
Block it in the firewall
sudo ufw deny 17555/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 17555" -Direction Inbound -LocalPort 17555 -Protocol TCP -Action Block # Windows
What is port 17555 used for?
Port 17555 is assigned by IANA to ailith (Ailith management of routers).
Is port 17555 TCP or UDP?
Port 17555 is registered for TCP.
Is it safe to open port 17555?
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 17555 is open?
On Linux run "ss -ltnup 'sport = :17555'", on macOS "lsof -nP -i :17555", and on Windows "netstat -ano | findstr :17555" to see the local process. From another machine, "nmap -p 17555 <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