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// Databases & caches

Port 3630: C&S Remote Database Port

Port 3630 is assigned by IANA to cs-remote-db (C&S Remote Database Port).

3630

How cs-remote-db works

Databases & caches
app:3630cs-remote-db app:3630cs-remote-db

The application sends a SQL query to the cs-remote-db server on port 3630, which returns rows from its tables.

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
Databases & caches
01 Security

Is port 3630 dangerous?

We have no specific security note for port 3630. Its risk depends on the program actually listening on it. General advice for databases & caches services:

  • Bind the service to localhost or a private network, never to a public address.
  • Enable authentication, use per-application accounts and require TLS.
  • Watch for exposed Docker ports: publish them on 127.0.0.1 only.
02 Registry

IANA registry entries for port 3630

ServicePortTransportDescriptionReferenceUpdated
cs-remote-db 3630 TCP, UDP C&S Remote Database Port - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3630, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3630'      # process listening on 3630
sudo lsof -nP -i :3630

macOS

sudo lsof -nP -i :3630

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3630 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3630
netstat -ano | findstr :3630

From another machine

nmap -p 3630 -sV <host>
sudo nmap -sU -p 3630 <host>
nc -zv <host> 3630

Block it in the firewall

sudo ufw deny 3630/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3630" -Direction Inbound -LocalPort 3630 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3630 used for?

Port 3630 is assigned by IANA to cs-remote-db (C&S Remote Database Port).

Is port 3630 TCP or UDP?

Port 3630 is registered for TCP and UDP.

Is it safe to open port 3630?

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. Bind the service to localhost or a private network, never to a public address.

How do I check if port 3630 is open?

On Linux run "ss -ltnup 'sport = :3630'", on macOS "lsof -nP -i :3630", and on Windows "netstat -ano | findstr :3630" to see the local process. From another machine, "nmap -p 3630 <host>" shows whether it is reachable.

05 Related
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