Port8443— Alternate HTTPS / Tomcat TLS
8443 est souvent choisi comme port HTTPS alternatif, notamment dans l’exemple TLS de Tomcat. Le numéro de port n’active pas TLS à lui seul.
Registry assignments, software defaults and local listeners are different things. A port number alone does not identify or secure a service.
Configuration and troubleshooting
Vérifiez le Connector TLS, le certificat et l’URL explicitement en https://. redirectPort de Tomcat désigne une destination de redirection ; il ne crée pas de socket d’écoute TLS.
Important limitations
L’identité du certificat concerne normalement le nom d’hôte, pas le port. Continuez à valider les certificats et mettez à jour les proxies, les adresses de rappel et les règles d’accès après modification.
Read-only checks: run on the server host
Choose the commands for your OS. Check TCP and UDP separately. No result is not a lasting availability guarantee; inspect host and container separately.
Linux
sudo ss -ltnp 'sport = :8443'macOS
sudo lsof -nP -iTCP:8443 -sTCP:LISTENWindows PowerShell
Get-NetTCPConnection -LocalPort 8443 -State ListenSources and review
Sources checked on:
This review covers the explanations and sources on this page, not your device or every community software entry below.
Logiciels utilisant ce port (8 logiciels)
Community software entries: links are references, not individual verification.
SSL Web Services
SSL Webservice
HTTPS Alternative Port
HTTPSPortWebApplicationAPI
Conseils d’utilisation
- Avant d’utiliser le port 8443, vérifiez qu’il n’est pas occupé par d’autres services
- En cas de conflit de ports, envisagez d’utiliser d’autres ports ou d’arrêter le service qui occupe le port
Questions fréquentes
What is port 8443 used for?
Port 8443 sits in the Web & HTTP Services category. This page lists the registered purpose and the software commonly associated with it; to see what is actually listening on a specific machine, check the process with ss/netstat.
Is port 8443 TCP or UDP?
The registered protocol on this page is TCP. The same number behaves independently on each protocol: TCP may be listening while UDP is idle, so check them separately.
How do I check if port 8443 is in use?
On Linux: sudo ss -tlnp 'sport = :8443' for an exact port match. On macOS: sudo lsof -nP -iTCP:8443 -sTCP:LISTEN. On Windows PowerShell: Get-NetTCPConnection -LocalPort 8443 -State Listen. A listener counts as confirmed only when you can see the bind address and process name; without root/admin you will not see other users' processes.
Is port 8443 secure? Should I open it in my firewall?
A port number has no inherent security — it depends on whether the listening service is correctly configured and whether it needs exposure at all. Keep loopback/internal-only services firewalled; where public access is required, pair it with source restrictions, VPN or authentication. The caution section on this page lists port-specific risks.
En bref
- Port
- 8443
- Protocole
- TCP
- Catégories
- Web et services HTTP
- État d’utilisation
- 8 logiciels utilisant ce port
Ports associés
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