Alternative HTTP
What is Port 8090?
Port 8090 is used as an alternative HTTP port by various applications. Atlassian Confluence uses port 8090 as its default HTTP port. Some web application frameworks and development servers also use this port. In containerized environments, port 8090 is commonly mapped for additional web services. The port is part of the widely used 8080-8099 range for HTTP services and is frequently chosen when other ports in the range are occupied.
Common Uses
- Atlassian Confluence web interface
- Alternative web application port
- Development server endpoint
- Container-mapped web services
Technical Details
Copy-paste commands to check port 8090 (Alternative HTTP) from your terminal
Test connectivity
nc -zv example.com 8090
curl -v --max-time 5 http://example.com:8090/
telnet example.com 8090
nmap -p 8090 -sV example.com
(echo > /dev/tcp/example.com/8090) 2>/dev/null && echo "open" || echo "closed"
Open port in firewall
sudo ufw allow 8090/tcp
sudo iptables -A INPUT -p tcp --dport 8090 -j ACCEPT
sudo firewall-cmd --permanent --add-port=8090/tcp && sudo firewall-cmd --reload
Security Considerations
Confluence on port 8090 should be placed behind a reverse proxy with TLS. Apply the same web application security practices as other HTTP ports. Keep Confluence and other applications updated for security patches.
Popular Ports Reference
The most commonly used and referenced network ports