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On the recordRead 11 Oct 202615 facts
OpenSSH
Plans and prices
OpenSSH
Free
Free SSH protocol suite · BSD-style license · commercial use permitted
Read 11 Oct 2026 · openssh.org
On the record
- Authentication
- Listed authentication methods include public keys, one-time passwords, and, in the portable release, Kerberos.openssh.org · read 11 Oct 2026
- Compatibility limit
- Interoperability is a goal but not a promise; older protocols, ciphers, key types, and other options with known weaknesses are routinely disabled.openssh.org · read 11 Oct 2026
- Compression
- OpenSSH can optionally compress data before encryption to improve performance on slow network links.openssh.org · read 11 Oct 2026
- Current release
- The project homepage states that OpenSSH 10.6 was released October 6, 2026.openssh.org · read 11 Oct 2026
- Encryption
- It offers cryptography including AES, ChaCha20, RSA, ECDSA, and Ed25519, and starts encryption before authentication.openssh.org · read 11 Oct 2026
- File transfer
- OpenSSH includes SFTP client and server support.openssh.org · read 11 Oct 2026
- Key handling
- Agent forwarding lets a local authentication agent hold keys without storing them on other machines in the network, and OpenSSH adds path-based restrictions on key use.openssh.org · read 11 Oct 2026
- License
- The project says its source is freely available, has no restrictive license, and may be used for commercial purposes.openssh.org · read 11 Oct 2026
- Purpose
- OpenSSH provides encrypted connectivity for remote login and remote file transfers using the SSH protocol.openssh.org · read 11 Oct 2026
- Security process
- OpenSSH says it is developed using the security process of the OpenBSD group and provides a private developers list for reporting security issues.openssh.org · read 11 Oct 2026
- Suite tools
- The suite includes tools for remote operations, key management, and server-side SSH services, including ssh, scp, sftp, ssh-keygen, sshd, and ssh-agent.openssh.org · read 11 Oct 2026
- Support and bug reports
- Portable OpenSSH bugs can be reported through the project's problem-report channels; issues in vendor-modified copies should generally be reported to the vendor unless reproducible in unmodified OpenSSH.openssh.org · read 11 Oct 2026
- Tunneling
- Port forwarding carries TCP/IP connections over an encrypted channel, and X11 forwarding encrypts X Window System traffic.openssh.org · read 11 Oct 2026
