Bug 666

Summary:	'BatchMode yes' makes ssh(1) look for /usr/local/etc/ssh_known_hosts
Product:	Portable OpenSSH	Reporter:	Martin Mokrejs <mmokrejs>
Component:	sshd	Assignee:	OpenSSH Bugzilla mailing list <openssh-bugs>
Status:	CLOSED WORKSFORME
Severity:	critical
Priority:	P2
Version:	3.7.1p1
Hardware:	Alpha
OS:	OSF/1

Description Martin Mokrejs 2003-09-18 05:32:35 AEST

When there's no /usr/local/etc/ssh_known_hosts and ssh_config says: "BatchMode
yes", the clients get:

$ ssh bontebok
Host key verification failed.
$


When the file is present with the public key of target machine, user receives:

debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug3: check_host_in_hostfile: filename /home/users/mokrejs/.ssh/known_hosts
debug3: check_host_in_hostfile: filename /usr/local/etc/ssh_known_hosts
debug3: check_host_in_hostfile: match line 1
debug3: check_host_in_hostfile: filename /home/users/mokrejs/.ssh/known_hosts
debug3: check_host_in_hostfile: filename /usr/local/etc/ssh_known_hosts
debug3: check_host_in_hostfile: match line 1
debug1: Host 'bontebok' is known and matches the RSA host key.
debug1: Found key in /usr/local/etc/ssh_known_hosts:1
debug2: bits set: 1627/3191
debug1: ssh_rsa_verify: signature correct
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /home/users/mokrejs/.ssh/identity (0)
debug2: key: /home/users/mokrejs/.ssh/id_rsa (0)
debug2: key: /home/users/mokrejs/.ssh/id_dsa (0)
debug1: Authentications that can continue: publickey,password,keyboard-interactive
debug3: start over, passed a different list publickey,password,keyboard-interactive
debug3: preferred gssapi,publickey
debug3: authmethod_lookup publickey
debug3: remaining preferred: ,publickey
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Trying private key: /home/users/mokrejs/.ssh/identity
debug3: no such identity: /home/users/mokrejs/.ssh/identity
debug1: Trying private key: /home/users/mokrejs/.ssh/id_rsa
debug3: no such identity: /home/users/mokrejs/.ssh/id_rsa
debug1: Trying private key: /home/users/mokrejs/.ssh/id_dsa
debug3: no such identity: /home/users/mokrejs/.ssh/id_dsa
debug2: we did not send a packet, disable method
debug1: No more authentication methods to try.
Permission denied (publickey,password,keyboard-interactive).
debug1: Calling cleanup 0x1200708e0(0x0)



If the key in /usr/local/etc/ssh_known_hosts is wrong, it ssh(1) should say so.

Comment 1 Damien Miller 2003-09-19 16:50:24 AEST

This is correct behaviour. In BatchMode, you don't get asked if you want to add
the key. The error message is correct. The key is not "wrong", it is absent
entirely.

If you are complaining about the authentication failure in the debug trace, that
has nothing to do with BatchMode and nothing to do with known_hosts.

(I was expecting rather more from bug #666)

Comment 2 Damien Miller 2004-04-14 12:24:19 AEST

Mass change of RESOLVED bugs to CLOSED