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// Other services

Port 7278: OMA Dynamic Content Delivery over CBS

Port 7278 is assigned by IANA to oma-dcdocbs (OMA Dynamic Content Delivery over CBS).

7278

How oma-dcdocbs works

Other services
client:7278oma-dcdocbsresponse client:7278oma-dcdocbsresponse

The client sends a request to port 7278 and the oma-dcdocbs 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 7278 dangerous?

We have no specific security note for port 7278. 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 7278

ServicePortTransportDescriptionReferenceUpdated
oma-dcdocbs 7278 TCP, UDP OMA Dynamic Content Delivery over CBS - 2008-01-29

// source: IANA service name and port number registry

03 Check it

Which program uses port 7278, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7278'      # process listening on 7278
sudo lsof -nP -i :7278

macOS

sudo lsof -nP -i :7278

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7278 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7278
netstat -ano | findstr :7278

From another machine

nmap -p 7278 -sV <host>
sudo nmap -sU -p 7278 <host>
nc -zv <host> 7278

Block it in the firewall

sudo ufw deny 7278/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7278" -Direction Inbound -LocalPort 7278 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7278 used for?

Port 7278 is assigned by IANA to oma-dcdocbs (OMA Dynamic Content Delivery over CBS).

Is port 7278 TCP or UDP?

Port 7278 is registered for TCP and UDP.

Is it safe to open port 7278?

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 7278 is open?

On Linux run "ss -ltnup 'sport = :7278'", on macOS "lsof -nP -i :7278", and on Windows "netstat -ano | findstr :7278" to see the local process. From another machine, "nmap -p 7278 <host>" shows whether it is reachable.

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