Git Protocol
What is Port 9418?
Port 9418 is used by the Git protocol (git://), a read-only, unauthenticated protocol for Git repository access. The Git daemon serves repositories over this port without requiring SSH keys or any authentication, making it the fastest way to clone public repositories. The protocol has no encryption — data is transferred in plaintext. While GitHub, GitLab, and other hosting services primarily use HTTPS (port 443) and SSH (port 22) for Git access, the native Git protocol on port 9418 is occasionally used for high-performance read-only mirrors, internal repository servers, and environments where SSH overhead is undesirable.
Common Uses
- Fast, read-only Git repository cloning
- Git mirror servers for public repositories
- Internal repository distribution without authentication overhead
- High-throughput repository access
Technical Details
Copy-paste commands to check port 9418 (Git Protocol) from your terminal
Test connectivity
nc -zv example.com 9418
curl -v --max-time 5 http://example.com:9418/
telnet example.com 9418
nmap -p 9418 -sV example.com
(echo > /dev/tcp/example.com/9418) 2>/dev/null && echo "open" || echo "closed"
Open port in firewall
sudo ufw allow 9418/tcp
sudo iptables -A INPUT -p tcp --dport 9418 -j ACCEPT
sudo firewall-cmd --permanent --add-port=9418/tcp && sudo firewall-cmd --reload
Security Considerations
The Git protocol provides no authentication or encryption. It should only be used for truly public, read-only repositories. Never enable push access via the Git protocol. Use SSH or HTTPS for any repository requiring access control. The lack of encryption means repository contents are visible to network observers.
Popular Ports Reference
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