10-24-2015
Quote:
Originally Posted by
gandolf989
There is really only a couple of steps:
on the local server do the following:
- mkdir ~.ssh
- chmod 750 ~
- chmod 700 ~/.ssh
- ssh-keygen -t rsa -b 2048
- cat id_rsa_<server_name>.pub
On the remote server do the following:
- mkdir ~.ssh
- chmod 750 ~
- chmod 700 ~/.ssh
- touch ~/.ssh/authorized_keys
- chmod 600 ~/.ssh/authorized_keys
- edit the ~/.ssh/authorized_keys and paste in the contents of the *.pub file from the local server
Then test to see if you can ssh from the local to the remote server without a password.
Hello,
After I enter those codes to local and remote servers, it asks again root password to establish an ssh connection. In server permit root login is prohibit. Could it be the reason?
Thanks in advance
Boris
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LEARN ABOUT CENTOS
ssh-keysign
SSH-KEYSIGN(8) BSD System Manager's Manual SSH-KEYSIGN(8)
NAME
ssh-keysign -- ssh helper program for host-based authentication
SYNOPSIS
ssh-keysign
DESCRIPTION
ssh-keysign is used by ssh(1) to access the local host keys and generate the digital signature required during host-based authentication with
SSH protocol version 2.
ssh-keysign is disabled by default and can only be enabled in the global client configuration file /etc/ssh/ssh_config by setting
EnableSSHKeysign to ``yes''.
ssh-keysign is not intended to be invoked by the user, but from ssh(1). See ssh(1) and sshd(8) for more information about host-based authen-
tication.
FILES
/etc/ssh/ssh_config
Controls whether ssh-keysign is enabled.
/etc/ssh/ssh_host_dsa_key
/etc/ssh/ssh_host_ecdsa_key
/etc/ssh/ssh_host_rsa_key
These files contain the private parts of the host keys used to generate the digital signature. They should be owned by root, read-
able only by root, and not accessible to others. Since they are readable only by root, ssh-keysign must be set-uid root if host-
based authentication is used.
/etc/ssh/ssh_host_dsa_key-cert.pub
/etc/ssh/ssh_host_ecdsa_key-cert.pub
/etc/ssh/ssh_host_rsa_key-cert.pub
If these files exist they are assumed to contain public certificate information corresponding with the private keys above.
ENVIRONMENT
SSH_USE_STRONG_RNG
The reseeding of the OpenSSL random generator is usually done from /dev/urandom. If the SSH_USE_STRONG_RNG environment variable is
set to value other than 0 the OpenSSL random generator is reseeded from /dev/random. The number of bytes read is defined by the
SSH_USE_STRONG_RNG value. Minimum is 14 bytes. This setting is not recommended on the computers without the hardware random genera-
tor because insufficient entropy causes the connection to be blocked until enough entropy is available.
SEE ALSO
ssh(1), ssh-keygen(1), ssh_config(5), sshd(8)
HISTORY
ssh-keysign first appeared in OpenBSD 3.2.
AUTHORS
Markus Friedl <markus@openbsd.org>
BSD
July 16, 2013 BSD