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Networking

Railway provides several networking features to connect your services to the internet, to each other, and to external resources.

Public & private networking

FeatureDescription
Public NetworkingExpose your services to the internet via HTTP/HTTPS with automatic SSL certificates.
Private NetworkingSecure service-to-service communication within your project using internal DNS.

Domain configuration

FeatureDescription
DomainsConfigure Railway-provided domains, custom domains, and private internal domains.
TCP ProxyExpose non-HTTP services (databases, game servers) to the internet via TCP.

Traffic & routing

FeatureDescription
Outbound NetworkingUnderstand how outbound traffic from your services works.
Static Outbound IPsGet fixed IP addresses for outbound traffic when connecting to IP-allowlisted services.
Edge NetworkingLearn about Railway's edge network and global routing.

Troubleshooting

FeatureDescription
Troubleshooting SSLDebug and resolve SSL certificate issues.
Network DiagnosticsTools and techniques for diagnosing network issues.