Ok, let us see if this make since. I have three servers
that back up nightly to my remote back up site. They all use SSH and
authenticate with RSA/DSA keys. Two of the three servers are still connecting to
the back up machine just fine but the third suddenly fails. How and why should
this happen? I would rather understand why this has happened and how to fix it
instead of just setting it up again. Besides, while I remember was easy to set
up the keys and get it authenticating, I have long since forgot the details on
how to actually do it ;-)
Any thoughts as to why it would fail?
[backupuser@redcent etc]# ssh -v remoteuser@remote.cornerstonehome.com
OpenSSH_3.9p1, OpenSSL 0.9.7a Feb 19 2003
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to remote.cornerstonehome.com [remote.cornerstonehome.com]
port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /backupuser/.ssh/identity type 0
debug1: identity file /backupuser/.ssh/id_rsa type 1
debug1: identity file /backupuser/.ssh/id_dsa type 2
debug1: Remote protocol version 1.99, remote software
version OpenSSH_3.9p1
debug1: match: OpenSSH_3.9p1 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_3.9p1
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-cbc hmac-md5 none
debug1: kex: client->server aes128-cbc hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192)
sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host 'remote.cornerstonehome.com' is known and
matches the RSA host key.
debug1: Found key in /backupuser/.ssh/known_hosts:4
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue:
publickey,gssapi-with-mic,password
debug1: Next authentication method: publickey
debug1: Offering public key: /backupuser/.ssh/id_rsa
debug1: Authentications that can continue:
publickey,gssapi-with-mic,password
debug1: Offering public key: /backupuser/.ssh/id_dsa
debug1: Authentications that can continue:
publickey,gssapi-with-mic,password
debug1: Next authentication method: password
remoteuser@remote.cornerstonehome.com's password:
Bryan O'Neal
Cornerstone Homes & Development, Inc.
(480) 505-1900
http://www.cornerstonehome.com