Port 8080 (TCP) — HTTP alternate

Alternate HTTP port for proxies, Tomcat, Jenkins and dev servers.

🔒 Runs locally — your input never leaves this browser tab

Often an unprotected admin UI. Put behind a reverse proxy.

Check if port 8080 is open

On the server, see what is listening:

sudo ss -tulpn | grep ':8080 '

From another machine, test reachability:

nc -zv your-server.example.com 8080

With UFW (Ubuntu/Debian):

sudo ufw deny 8080

With firewalld (RHEL/AlmaLinux/Rocky):

sudo firewall-cmd --permanent --remove-port=8080/tcp && sudo firewall-cmd --reload