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// Other services

Port 1635: EDB Server 1

Port 1635 is assigned by IANA to edb-server1 (EDB Server 1).

1635

How edb-server1 works

Other services
client:1635edb-server1response client:1635edb-server1response

The client sends a request to port 1635 and the edb-server1 service answers.

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
Other services
01 Security

Is port 1635 dangerous?

We have no specific security note for port 1635. 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 1635

ServicePortTransportDescriptionReferenceUpdated
edb-server1 1635 TCP, UDP EDB Server 1 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1635, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1635'      # process listening on 1635
sudo lsof -nP -i :1635

macOS

sudo lsof -nP -i :1635

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1635 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1635
netstat -ano | findstr :1635

From another machine

nmap -p 1635 -sV <host>
sudo nmap -sU -p 1635 <host>
nc -zv <host> 1635

Block it in the firewall

sudo ufw deny 1635/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1635" -Direction Inbound -LocalPort 1635 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1635 used for?

Port 1635 is assigned by IANA to edb-server1 (EDB Server 1).

Is port 1635 TCP or UDP?

Port 1635 is registered for TCP and UDP.

Is it safe to open port 1635?

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 1635 is open?

On Linux run "ss -ltnup 'sport = :1635'", on macOS "lsof -nP -i :1635", and on Windows "netstat -ano | findstr :1635" to see the local process. From another machine, "nmap -p 1635 <host>" shows whether it is reachable.

05 Related
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