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// Network services

Port 914: Routing in Fat Trees Link Information Element

Port 914 is assigned by IANA to rift-lies (Routing in Fat Trees Link Information Element).

914

How rift-lies works

Network services
client:914rift-liesresponse client:914rift-liesresponse

The client sends a request to port 914 and the rift-lies service answers.

Transport
UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Well-known (0-1023)
Category
Network services
01 Security

Is port 914 dangerous?

We have no specific security note for port 914. Its risk depends on the program actually listening on it. General advice for network services services:

  • Answer only the networks that need the service (no open resolvers, relays or reflectors).
  • UDP services can be abused for DDoS amplification: rate-limit or block them at the edge.
  • Disable legacy test services that have no use in production.
02 Registry

IANA registry entries for port 914

ServicePortTransportDescriptionReferenceUpdated
rift-lies 914 UDP Routing in Fat Trees Link Information Element RFC 9692 2024-06-07
-914-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 914, and is it reachable?

Linux

sudo ss -ltnup 'sport = :914'      # process listening on 914
sudo lsof -nP -i :914

macOS

sudo lsof -nP -i :914

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 914 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 914
netstat -ano | findstr :914

From another machine

nmap -p 914 -sV <host>
sudo nmap -sU -p 914 <host>
nc -zv <host> 914

Block it in the firewall

sudo ufw deny 914/udp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 914" -Direction Inbound -LocalPort 914 -Protocol UDP -Action Block  # Windows
04 FAQ
What is port 914 used for?

Port 914 is assigned by IANA to rift-lies (Routing in Fat Trees Link Information Element).

Is port 914 TCP or UDP?

Port 914 is registered for UDP.

Is it safe to open port 914?

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. Answer only the networks that need the service (no open resolvers, relays or reflectors).

How do I check if port 914 is open?

On Linux run "ss -ltnup 'sport = :914'", on macOS "lsof -nP -i :914", and on Windows "netstat -ano | findstr :914" to see the local process. From another machine, "nmap -p 914 <host>" shows whether it is reachable.

05 Related
:53 DNS tcp · udp · moderate risk :135 MS RPC tcp · udp · high risk :123 NTP udp · tcp · moderate risk :67 DHCP server udp · tcp · moderate risk :111 rpcbind tcp · udp · high risk :9100 Raw printing (JetDirect) tcp · udp · high risk :631 IPP / CUPS tcp · udp · high risk :5353 mDNS udp · tcp · moderate risk

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