CyberHunter
Local dataset, no network
// Other services

Port 1110: Client status info

Port 1110 is assigned by IANA to nfsd-keepalive (Client status info), webadmstart (Start web admin server).

1110

How nfsd-keepalive works

Other services
client:1110nfsd-keepaliveresponse client:1110nfsd-keepaliveresponse

The client sends a request to port 1110 and the nfsd-keepalive service answers.

Transport
UDP · TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 1110 dangerous?

We have no specific security note for port 1110. Its risk depends on the program actually listening on it. General advice for other services services:

  • 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.
02 Registry

IANA registry entries for port 1110

ServicePortTransportDescriptionReferenceUpdated
nfsd-keepalive 1110 UDP Client status info - -
webadmstart 1110 TCP Start web admin server - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1110, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1110'      # process listening on 1110
sudo lsof -nP -i :1110

macOS

sudo lsof -nP -i :1110

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1110 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1110
netstat -ano | findstr :1110

From another machine

nmap -p 1110 -sV <host>
sudo nmap -sU -p 1110 <host>
nc -zv <host> 1110

Block it in the firewall

sudo ufw deny 1110/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1110" -Direction Inbound -LocalPort 1110 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1110 used for?

Port 1110 is assigned by IANA to nfsd-keepalive (Client status info), webadmstart (Start web admin server).

Is port 1110 TCP or UDP?

Port 1110 is registered for UDP and TCP.

Is it safe to open port 1110?

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 1110 is open?

On Linux run "ss -ltnup 'sport = :1110'", on macOS "lsof -nP -i :1110", and on Windows "netstat -ano | findstr :1110" to see the local process. From another machine, "nmap -p 1110 <host>" shows whether it is reachable.

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