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// Web

Port 8800: Sun Web Server Admin Service

Port 8800 is assigned by IANA to sunwebadmin (Sun Web Server Admin Service).

8800

How sunwebadmin works

Web
browser:8800sunwebadmin browser:8800sunwebadmin

A browser sends an HTTP request to port 8800 and the sunwebadmin server sends the page back.

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
Web
01 Security

Is port 8800 dangerous?

We have no specific security note for port 8800. Its risk depends on the program actually listening on it. General advice for web services:

  • Serve it over HTTPS only and check the HTTP security headers.
  • Keep admin consoles and development servers off the Internet.
  • Patch the application server and remove default credentials and sample apps.
02 Registry

IANA registry entries for port 8800

ServicePortTransportDescriptionReferenceUpdated
sunwebadmin 8800 TCP, UDP Sun Web Server Admin Service - 2005-12

// source: IANA service name and port number registry

03 Check it

Which program uses port 8800, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8800'      # process listening on 8800
sudo lsof -nP -i :8800

macOS

sudo lsof -nP -i :8800

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8800 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8800
netstat -ano | findstr :8800

From another machine

nmap -p 8800 -sV <host>
sudo nmap -sU -p 8800 <host>
nc -zv <host> 8800

Block it in the firewall

sudo ufw deny 8800/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8800" -Direction Inbound -LocalPort 8800 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8800 used for?

Port 8800 is assigned by IANA to sunwebadmin (Sun Web Server Admin Service).

Is port 8800 TCP or UDP?

Port 8800 is registered for TCP and UDP.

Is it safe to open port 8800?

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. Serve it over HTTPS only and check the HTTP security headers.

How do I check if port 8800 is open?

On Linux run "ss -ltnup 'sport = :8800'", on macOS "lsof -nP -i :8800", and on Windows "netstat -ano | findstr :8800" to see the local process. From another machine, "nmap -p 8800 <host>" shows whether it is reachable.

05 Related
:443 HTTPS tcp · udp · sctp · low risk :80 HTTP tcp · udp · sctp · moderate risk :8080 HTTP alternate tcp · udp · high risk :8443 HTTPS alternate tcp · udp · moderate risk :3000 Dev servers / Grafana tcp · udp · moderate risk :5000 Flask / Docker registry / UPnP tcp · udp · moderate risk :8000 HTTP alternate (dev) tcp · udp · moderate risk :8888 Jupyter / HTTP alternate tcp · udp · high risk

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