kb.hurricane-ridge.com » openssh

Converting SSH Key Formats

admin — Tue, 25 Jan 2011 17:39:36 +0000

To convert an SSH key from SSH2-compatible format to OpenSSH-compatible, use the “-i” flag to “ssh-keygen”:

-i This option will read an unencrypted private (or public) key file in SSH2-compatible format and print an OpenSSH compatible private (or public) key to stdout. ssh-keygen also reads the RFC 4716 SSH Public Key File Format. This option allows importing keys from several commercial SSH implementations.

e.g.:

ssh-keygen -i -f user.ssh2.pub > user.ossh.pub

CVSROOT Environment Variable for CVS-over-SSH

admin — Thu, 15 Jan 2009 22:09:53 +0000

When using CVS-over-SSH, set the CVSROOT environment variable as follows:

:ext:username@remotemachine:/full/path/to/cvsroot

You may wish to use SSH public key authentication and ssh-agent to avoid having to enter your password on the remote machine repeatedly.

Running Tar over SSH

admin — Thu, 15 Jan 2009 21:56:35 +0000

Running tar over ssh is straightforward:

% tar czvf - /home/anl | ssh desthost "cat > home.tar.gz"

Other ideas:

% tar -cf - /u01 | ssh otherhost "bzip2 -c > /u1/u01-backup.tbz" % tar -cf - /dir | ssh otherhost "cd /newbasedir ; tar -xpf -"