CyberHunter
Local dataset, no network
// Other services

Port 6445: Grid Engine Execution Service

Port 6445 is assigned by IANA to sge_execd (Grid Engine Execution Service), sge-execd (Grid Engine Execution Service IANA assigned this well-formed service name as a replacement for "sge_execd".).

6445

How sge_execd works

Other services
client:6445sge_execdresponse client:6445sge_execdresponse

The client sends a request to port 6445 and the sge_execd service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 6445 dangerous?

We have no specific security note for port 6445. 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 6445

ServicePortTransportDescriptionReferenceUpdated
sge_execd 6445 TCP, UDP Grid Engine Execution Service - 2006-08
sge-execd 6445 TCP, UDP Grid Engine Execution Service IANA assigned this well-formed service name as a replacement for "sge_execd". - 2006-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 6445, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6445'      # process listening on 6445
sudo lsof -nP -i :6445

macOS

sudo lsof -nP -i :6445

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6445 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6445
netstat -ano | findstr :6445

From another machine

nmap -p 6445 -sV <host>
sudo nmap -sU -p 6445 <host>
nc -zv <host> 6445

Block it in the firewall

sudo ufw deny 6445/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6445" -Direction Inbound -LocalPort 6445 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6445 used for?

Port 6445 is assigned by IANA to sge_execd (Grid Engine Execution Service), sge-execd (Grid Engine Execution Service IANA assigned this well-formed service name as a replacement for "sge_execd".).

Is port 6445 TCP or UDP?

Port 6445 is registered for TCP and UDP.

Is it safe to open port 6445?

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 6445 is open?

On Linux run "ss -ltnup 'sport = :6445'", on macOS "lsof -nP -i :6445", and on Windows "netstat -ano | findstr :6445" to see the local process. From another machine, "nmap -p 6445 <host>" shows whether it is reachable.

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