8080
Alternate HTTP port — Tomcat, proxies, and application servers
HTTP Alternate / Proxy / Tomcat
What is port 8080?
Port 8080 is one of the most commonly used alternate HTTP ports. It is the default for Apache Tomcat (Java EE), HTTP proxy servers, Jenkins, JBoss/WildFly, and many development frameworks. In Docker and container environments, applications frequently run on port 8080 and are fronted by nginx or Apache as a reverse proxy. If exposed in production, ensure proper authentication and access controls are in place.
Quick checks
$
nc -zv example.com 8080
$
nmap -p 8080 example.com
$
telnet example.com 8080