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Key

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Code Block
langhtml
Tin-Phams-iMac:~ tinpham$ ssh -V
OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009
Tin-Phams-iMac:~ tinpham$ sshd -v
sshd: illegal option -- v
OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009
usage: sshd [-46DdeiqTt] [-b bits] [-C connection_spec] [-f config_file]
            [-g login_grace_time] [-h host_key_file] [-k key_gen_time]
            [-o option] [-p port] [-u len]
Tin-Phams-iMac:~ tinpham$

Generate Public and Private Keys on Client Machine

Usually this is done on the client machine however, most windows systems do not have open ssh.

ssh-keygen without parameters does the following,

  • Generates an RSA key
  • Key strength is 2048
    Code Block
    langhtml
    Tin-Phams-iMac:~ tinpham$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/Users/tinpham/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /Users/tinpham/.ssh/id_rsa.
Your public key has been saved in /Users/tinpham/.ssh/id_rsa.pub.
The key fingerprint is:
c7:6c:3e:87:4a:09:90:ef:6d:a9:88:f8:f0:89:d2:13 tinpham@Tin-Phams-iMac.local
The key's randomart image is:
+--[ RSA 2048]----+
|        . oo.    |
|         s ..  . |
|          ...++ .|
|       T . +.=...|
|        F o + *. |
|         + o + . |
|          C .    |
|         . +     |
|                 |
+-----------------+
Tin-Phams-iMac:~ tinpham$

Resources

http://www.ibm.com/developerworks/library/l-keyc.html - pretty good article, I think I can improve it, shorter, clearly show when running on client or server.

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