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// Other services

Port 7870: Riverbed Steelhead Mobile Service

Port 7870 is assigned by IANA to rbt-smc (Riverbed Steelhead Mobile Service).

7870

How rbt-smc works

Other services
client:7870rbt-smcresponse client:7870rbt-smcresponse

The client sends a request to port 7870 and the rbt-smc service answers.

Transport
TCP
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 7870 dangerous?

We have no specific security note for port 7870. 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 7870

ServicePortTransportDescriptionReferenceUpdated
rbt-smc 7870 TCP Riverbed Steelhead Mobile Service - 2008-08-29
-7870-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 7870, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7870'      # process listening on 7870
sudo lsof -nP -i :7870

macOS

sudo lsof -nP -i :7870

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7870 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7870
netstat -ano | findstr :7870

From another machine

nmap -p 7870 -sV <host>
nc -zv <host> 7870

Block it in the firewall

sudo ufw deny 7870/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7870" -Direction Inbound -LocalPort 7870 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7870 used for?

Port 7870 is assigned by IANA to rbt-smc (Riverbed Steelhead Mobile Service).

Is port 7870 TCP or UDP?

Port 7870 is registered for TCP.

Is it safe to open port 7870?

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 7870 is open?

On Linux run "ss -ltnup 'sport = :7870'", on macOS "lsof -nP -i :7870", and on Windows "netstat -ano | findstr :7870" to see the local process. From another machine, "nmap -p 7870 <host>" shows whether it is reachable.

05 Related
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