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// Directory & authentication

Port 1760: www-ldap-gw

Port 1760 is assigned by IANA to www-ldap-gw (www-ldap-gw).

1760

How www-ldap-gw works

Directory & authentication
userdirectorywww-ldap-gwresponse userdirectorywww-ldap-gwresponse

The client proves who it is on port 1760 and gets an answer (or a ticket) it can use with other services.

Transport
TCP · UDP
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
Directory & authentication
01 Security

Is port 1760 dangerous?

We have no specific security note for port 1760. Its risk depends on the program actually listening on it. General advice for directory & authentication services:

  • Keep directory and authentication services on internal networks.
  • Require signing or TLS and disable anonymous queries.
  • Monitor authentication failures for spraying and brute force.
02 Registry

IANA registry entries for port 1760

ServicePortTransportDescriptionReferenceUpdated
www-ldap-gw 1760 TCP, UDP www-ldap-gw - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1760, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1760'      # process listening on 1760
sudo lsof -nP -i :1760

macOS

sudo lsof -nP -i :1760

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1760 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1760
netstat -ano | findstr :1760

From another machine

nmap -p 1760 -sV <host>
sudo nmap -sU -p 1760 <host>
nc -zv <host> 1760

Block it in the firewall

sudo ufw deny 1760/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1760" -Direction Inbound -LocalPort 1760 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1760 used for?

Port 1760 is assigned by IANA to www-ldap-gw (www-ldap-gw).

Is port 1760 TCP or UDP?

Port 1760 is registered for TCP and UDP.

Is it safe to open port 1760?

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. Keep directory and authentication services on internal networks.

How do I check if port 1760 is open?

On Linux run "ss -ltnup 'sport = :1760'", on macOS "lsof -nP -i :1760", and on Windows "netstat -ano | findstr :1760" to see the local process. From another machine, "nmap -p 1760 <host>" shows whether it is reachable.

05 Related
:389 LDAP tcp · udp · high risk :636 LDAPS tcp · udp · moderate risk :88 Kerberos tcp · udp · high risk :3268 Global Catalog (LDAP) tcp · udp · high risk :1812 RADIUS udp · tcp · moderate risk :31 MSG Authentication tcp · udp :49 Login Host Protocol (TACACS) tcp · udp :56 XNS Authentication tcp · udp

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