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UNIX for Dummies Questions & Answers
ssh-keygen error
Post 302569608 by karan2597 on Tuesday 1st of November 2011 02:43:58 AM
11-01-2011
ssh-keygen error
Hi,
I using ssh-keygen for passwordless authenciation firstly
and I am following these steps mentioned below...
1) Login to pngpcdb1 using your user/pass
2) type 'bash' (without quotes)
3) ssh-keygen #generates private and public key.
4) copy this private key to the location of your sftp script
5) mkdir ~/.ssh
6) create a file named authorized_keys in ~/.ssh
7) chmod 600 ~/.ssh/authorized_keys
8) cat sftp_rsa.pub > ~/.ssh/authorized_keys
9) copy public key to ~/.ssh folder
firstly I login to remote machine thru putty with me credentials and then i enter in the remote server ...the issues is when I again reenter this machine with my credentials then I eneter ssh pngpcdb1 , it asks for password but it should not ask for password since now authentication
is key based..!!
I using ssh-keygen for passwordless authenciation firstly
and I am following these steps mentioned below...
1) Login to pngpcdb1 using your user/pass
2) type 'bash' (without quotes)
3) ssh-keygen #generates private and public key.
4) copy this private key to the location of your sftp script
5) mkdir ~/.ssh
6) create a file named authorized_keys in ~/.ssh
7) chmod 600 ~/.ssh/authorized_keys
8) cat sftp_rsa.pub > ~/.ssh/authorized_keys
9) copy public key to ~/.ssh folder
firstly I login to remote machine thru putty with me credentials and then i enter in the remote server ...the issues is when I again reenter this machine with my credentials then I eneter ssh pngpcdb1 , it asks for password but it should not ask for password since now authentication
is key based..!!|
|
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LEARN ABOUT MINIX
moduli
MODULI(5) BSD File Formats Manual MODULI(5) NAME
moduli -- Diffie-Hellman moduli DESCRIPTION
The /etc/ssh/moduli file contains prime numbers and generators for use by sshd(8) in the Diffie-Hellman Group Exchange key exchange method. New moduli may be generated with ssh-keygen(1) using a two-step process. An initial candidate generation pass, using ssh-keygen -G, calcu- lates numbers that are likely to be useful. A second primality testing pass, using ssh-keygen -T, provides a high degree of assurance that the numbers are prime and are safe for use in Diffie-Hellman operations by sshd(8). This moduli format is used as the output from each pass. The file consists of newline-separated records, one per modulus, containing seven space-separated fields. These fields are as follows: timestamp The time that the modulus was last processed as YYYYMMDDHHMMSS. type Decimal number specifying the internal structure of the prime modulus. Supported types are: 0 Unknown, not tested. 2 "Safe" prime; (p-1)/2 is also prime. 4 Sophie Germain; 2p+1 is also prime. Moduli candidates initially produced by ssh-keygen(1) are Sophie Germain primes (type 4). Further primality testing with ssh-keygen(1) produces safe prime moduli (type 2) that are ready for use in sshd(8). Other types are not used by OpenSSH. tests Decimal number indicating the type of primality tests that the number has been subjected to represented as a bitmask of the following values: 0x00 Not tested. 0x01 Composite number - not prime. 0x02 Sieve of Eratosthenes. 0x04 Probabilistic Miller-Rabin primality tests. The ssh-keygen(1) moduli candidate generation uses the Sieve of Eratosthenes (flag 0x02). Subsequent ssh-keygen(1) pri- mality tests are Miller-Rabin tests (flag 0x04). trials Decimal number indicating the number of primality trials that have been performed on the modulus. size Decimal number indicating the size of the prime in bits. generator The recommended generator for use with this modulus (hexadecimal). modulus The modulus itself in hexadecimal. When performing Diffie-Hellman Group Exchange, sshd(8) first estimates the size of the modulus required to produce enough Diffie-Hellman out- put to sufficiently key the selected symmetric cipher. sshd(8) then randomly selects a modulus from /etc/ssh/moduli that best meets the size requirement. SEE ALSO
ssh-keygen(1), sshd(8) STANDARDS
M. Friedl, N. Provos, and W. Simpson, Diffie-Hellman Group Exchange for the Secure Shell (SSH) Transport Layer Protocol, RFC 4419, March 2006 2006. BSD
September 26, 2012 BSD