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<!doctype html> <html lang=en id=project-main> <meta charset=utf-8> <title>OpenSSH</title> <meta name="description" content="the main OpenSSH page"> <link rel="canonical" href="https://www.openssh.com/"> <link rel="stylesheet" href="openbsd.css"> <link rel="shortcut icon" href="favicon.ico" type="image/x-icon"> <main> <nav> <header>About OpenSSH</header> <ul> <li><a href="goals.html">Project Goals</a> <li><a href="releasenotes.html">Release Notes</a> <li><a href="history.html">History</a> <li><a href="features.html">Features</a> <li><a href="security.html">Security</a> <li><a href="specs.html">Specifications</a> <li><a href="users.html">Who Uses It</a> </ul> <header>Resources</header> <ul> <li><a href="manual.html">Manuals</a> <li><a href="list.html">Mailing Lists</a> <li><a href="https://marc.info/?l=openssh-unix-dev&r=1&w=2">List Archives</a> </ul> <header>For OpenBSD</header> <ul> <li><a href="openbsd.html">Releases</a> <li><a href="https://www.openbsd.org/anoncvs.html">AnonCVS</a> <li><a href="https://cvsweb.openbsd.org/src/usr.bin/ssh">CVSWeb</a> </ul> <header>For other systems</header> <ul> <li><a href="portable.html">Releases</a> <li><a href="https://github.com/openssh/openssh-portable">Development</a> <li><a href="report.html">Bug Reports</a> </ul> </nav> <article> <h2> <img src="images/openssh.gif" alt="[OpenSSH]" height=191 width=578> </h2> <p id="callout"> <a href="releasenotes.html#9.9p1">OpenSSH 9.9</a> released September 20, 2024 <p> OpenSSH is the premier connectivity tool for remote login with the SSH protocol. It encrypts all traffic to eliminate eavesdropping, connection hijacking, and other attacks. In addition, OpenSSH provides a large suite of secure tunneling capabilities, several authentication methods, and sophisticated configuration options. <p> The OpenSSH suite consists of the following tools: <ul> <li> Remote operations are done using <a href="https://man.openbsd.org/ssh.1">ssh</a>, <a href="https://man.openbsd.org/scp.1">scp</a>, and <a href="https://man.openbsd.org/sftp.1">sftp</a>. <li> Key management with <a href="https://man.openbsd.org/ssh-add.1">ssh-add</a>, <a href="https://man.openbsd.org/ssh-keysign.8">ssh-keysign</a>, <a href="https://man.openbsd.org/ssh-keyscan.1">ssh-keyscan</a>, and <a href="https://man.openbsd.org/ssh-keygen.1">ssh-keygen</a>. <li> The service side consists of <a href="https://man.openbsd.org/sshd.8">sshd</a>, <a href="https://man.openbsd.org/sftp-server.8">sftp-server</a>, and <a href="https://man.openbsd.org/ssh-agent.1">ssh-agent</a>. </ul> <p> OpenSSH is developed by a few developers of the <a href="https://www.openbsd.org">OpenBSD Project</a> and made available under a BSD-style license. <p> OpenSSH is incorporated into many commercial products, but very few of those companies assist OpenSSH with funding. <p> Contributions towards OpenSSH can be sent to the <a href="https://www.openbsd.org/donations.html">OpenBSD Foundation</a>. </article> </main>