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// Other services

Port 358: Shrinkwrap

Port 358 is assigned by IANA to shrinkwrap (Shrinkwrap).

358

How shrinkwrap works

Other services
client:358shrinkwrapresponse client:358shrinkwrapresponse

The client sends a request to port 358 and the shrinkwrap 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 358 dangerous?

We have no specific security note for port 358. 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 358

ServicePortTransportDescriptionReferenceUpdated
shrinkwrap 358 TCP, UDP Shrinkwrap - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 358, and is it reachable?

Linux

sudo ss -ltnup 'sport = :358'      # process listening on 358
sudo lsof -nP -i :358

macOS

sudo lsof -nP -i :358

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 358 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 358
netstat -ano | findstr :358

From another machine

nmap -p 358 -sV <host>
sudo nmap -sU -p 358 <host>
nc -zv <host> 358

Block it in the firewall

sudo ufw deny 358/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 358" -Direction Inbound -LocalPort 358 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 358 used for?

Port 358 is assigned by IANA to shrinkwrap (Shrinkwrap).

Is port 358 TCP or UDP?

Port 358 is registered for TCP and UDP.

Is it safe to open port 358?

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 358 is open?

On Linux run "ss -ltnup 'sport = :358'", on macOS "lsof -nP -i :358", and on Windows "netstat -ano | findstr :358" to see the local process. From another machine, "nmap -p 358 <host>" shows whether it is reachable.

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