Features

Function#

Cross-Region Transmission#

XTS establishes secure tunnels between regions, and enables cross-region transmission.

Multiple Regions#

XTS supports multiple regions. You may define as many regions as you like.

Security#

Secure Tunnels#

XTS establishes secure tunnels between regions, and enables cross-region transmission without exposing public IP-ports for your services which need cross-region transmission.

Minimize Attack Surface#

XTS minimizes attack surface. Only one public IP-port, i.e. the public IP-port of XTS, of each region is exposed to public networks.

Protect Services From Being Exposed to Public Networks#

XTS protects your services from being exposed to public networks. Your services can only be accessed from within your regions.

Reject Connections From Public Networks#

XTS rejects connections from public networks, except connections from XTS of another region of yours.

Defend Against DDoS Attacks#

XTS limits max number of concurrent connections in total, and per client as well.

Defend Against Slow Attacks#

If a handshake is not completed within the specified duration, XTS will close the connection.

Close Idle Connections#

If no data is sent from a connection within the specified duration, XTS will close the connection.

Scalability#

Horizontal Scaling#

XTS is horizontally scalable. In theory, there’s no scalability cap, i.e. you can achieve unlimited throughput by specifying an unlimited number of replicas.

Reliability#

Truly Distributed, Load Balanced#

XTS is Truly Distributed, Load Balanced and Horizontally Scalable.
All instances are active. Each instance handles a portion of workload.
This architecture provides the best scalability and reliability.

Established Connections Remain Intact on Config Changes#

All established connections remain intact on config changes.

See also Goroutine-level Guardian →

Zero Downtime During Scaling Out/In#

XTS is Truly Distributed, Load Balanced and Horizontally Scalable, and thus zero downtime during scaling out/in.

Zero Downtime During Upgrade#

XTS is Truly Distributed, Load Balanced and Horizontally Scalable, and thus zero downtime during upgrade.

Zero Downtime on Temporary Errors#

Zero downtime on temporary errors. Auto-recover on temporary errors.

See also Goroutine-level Guardian →

Zero Downtime on Process Crash#

Zero downtime on process crash. Auto-recover on process crash.

See also Process-level Guardian →

API#

CR#

See Use → for details.

RESTful#

See RESTful → for details.

Deployment#

Docker Image and Helm Chart#

Docker images and Helm charts are provided to enable you to install/upgrade XTS in a flash.

Upgrade#

Seamlessly Upgrade to a New Version#

Backward compatibility guaranteed.
To upgrade to a new version, just download the new release and run helm upgrade and that’s it.