Projects / Portable OpenSSH

Portable OpenSSH

Portable OpenSSH is a Unix/Linux port of OpenBSD's excellent OpenSSH, a full implementation of the SSH1 and SSH2 protocols. It includes sftp client and server support.

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RSS Recent releases

  •  31 Jan 2014 13:57

    Release Notes: This is a feature-focused release. New features include new ciphers and key types, a new private key format, and rejection of connection requests from old insecure clients. There are also a number of bug fixes.

    Release Notes: This release added experimental sandboxing of network-facing code during the pre-authentication phase and SHA2-based HMAC modes for the SSH transport. sshd now sends logs from the privilege-separated process via a pipe, eliminating the need for /var/empty/dev/log. There were many more bugfixes and changes.

    •  24 Jan 2011 03:43

      Release Notes: ECC support for kex exchange and public key authentication, SFTP hard link support, improved QoS/DSCP support, bandwidth limiting for SFTP, and more.

      •  08 Mar 2010 12:30

      Release Notes: This is a major feature and bugfix release. Major changes include disabling SSH protocol 1 by default, removal of legacy OpenSC/libsectok smartcard support, addition of PKCS#11 support, introduction of a new certificate authentication method for users and hosts, revised session multiplexing code, many improvements to sftp from the Google Summer of Code 2009, and lots of bugfixes.

      Release Notes: Many bugs were fixed. Performance and features were improved.

      RSS Recent comments

      25 Jun 2003 14:55 jrjohns3

      Security Blanket
      This is one of the most important apps on my machine. I don't know why everyone doesn't use it. I fear telnet....

      Regards,

      jake@plutoid.com (www.plutoid.com)
      www.plutoid.com (www.plutoid.com)

      06 Dec 2001 07:41 LosD

      Re: file format of DSA keys

      > Hmmm... Looking at the manpage, neither
      > -d or -x exists...
      >
      >

      Hmmm.... But they still work...

      06 Dec 2001 07:33 LosD

      Re: file format of DSA keys
      Hmmm... Looking at the manpage, neither -d or -x exists...

      28 Feb 2001 09:52 mossc

      Re: file format of DSA keys

      > OpenSSH uses PEM format for DSA key
      > files which is incompatible with the
      > SSH2 key file format. So far I couldn't
      > get OpenSSH to authenticate with a DSA
      > key to an ssh2 server because of this.
      > I can't put the public key generated
      > with OpenSSH on the ssh2 server and I
      > can't get OpenSSH to use a private key
      > generated with ssh-keygen2.
      >

      From my notes here is how I was able to do it:

      On the client

      1. upgrade the openssh to 2.2.x+

      2. ssh-keygen -d -f $HOME/.ssh/id_dsa

      3. cd $HOME/.ssh

      4. ssh-keygen -x -f $HOME/.ssh/id_dsa > ssh2.pub

      On fsecure server

      5. copy ssh2.pub to $HOME/.ssh2/ssh2.pub

      6. echo "Key ssh2.pub" > authorization

      11 May 2000 15:06 orentirosh

      file format of DSA keys
      OpenSSH uses PEM format for DSA key files which is incompatible with the SSH2 key file format. So far I couldn't get OpenSSH to authenticate with a DSA key to an ssh2 server because of this. I can't put the public key generated with OpenSSH on the ssh2 server and I can't get OpenSSH to use a private key generated with ssh-keygen2.

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