OpenSSH is the premier connectivity tool for remote login with the SSH protocol. It encrypts all traffic to eliminate eavesdropping, connection hijacking. Developed by Theo de Raadt
License: Open Source
Bitvise SSH Server is a commercial software tailored for Windows users, offering a user-friendly GUI and advanced features like Active Directory support. In contrast, OpenSSH is a robust open-source solution widely used across multiple platforms, favored for its community support and flexibility, but may require more technical expertise for configuration.