Re: Host key verification failed

> Robert Moss wrote:
>
> > Hi,
> >   The SSH key you are using looks to be in the wrong format.  In your
> > debug output, there are a few lines:
> >
> >
> > debug3: Not a RSA1 key file /root/.ssh/id_rsa.
> > debug2: key_type_from_name: unknown key type '-----BEGIN'
> > debug3: key_read: missing keytype
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> debug3: key_read: missing
> > whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug2: key_type_from_name: unknown key type '-----END'
> > debug3: key_read: missing keytype
> >
> >
> > The key probably looks something like this:
> >
> >
> > ---- BEGIN SSH2 PUBLIC KEY ----
> > Comment: "1024-bit RSA, converted from OpenSSH by root@testbox"
> > AAAAB3NzaC1yc2EAAAABIwAAAIEAtegffmpCN/68ePgVbfjtXXwSKKiNyIKH1TnwG1C75U
> > yIEVSmxJr5wDh4iRcasdff394ZnCds3sHFV6uVILH+8t8q7MzA92BPG+jUMtawAG/i8FoU+
> > iyNLB9mn1CORGYBJRrabyUW3JT5t5fefH55hUr+isMH7zr90cHq0hPa9CE=
> > ---- END SSH2 PUBLIC KEY ----
> >
> >
> > The key is most likely in 'SECSH Public Key File Format' format.  You
> > need to convert it to the OpenSSH key format, similar to below:
> >
> > ssh-rsa
> > AAAAB3NzaC1yc2EAAAABIwAAAIEAtesutmpCN/68fPgVbfjtXXwSKKiNyIKH1TnwG1C75UyI
> > EVSmxJr5wDh4iRcdwpKE94ZnCds3sHFV6uVILH+8t8q7MzA92BPG+jUMtawAG/i8FoU+iyNL
> > ymlCORggBJRbarUW3JT5t5OW4+H55hUr+isMH7zr90cHq0hPa9CE= root@testbox
> >
> >
> > You can use the ssh-keygen program to convert from the above format to
> > the OpenSSH format.
> >
> > ssh-keygen -f <path to ssh key> -i
> >
> > You will need to do that for both the public and private keys.
> >
> > Hope this helps,
> > Robert Moss.
> >
> >
> > -----Original Message-----
> > From: wilis@dcc.ufmg.br [mailto:wilis@dcc.ufmg.br]
> > Sent: 18 November 2004 12:47
> > To: secureshell@securityfocus.com
> > Subject: Host key verification failed
> >
> > Hi,
> >
> > I'm using ssh client in a Slackware distribution Linux and trying to
> > connect to ssh server on mica.dcc.ufmg.br. But I can't connect to it and
> > can't connect to any other server.
> >
> > root@status:/var/tmp# ssh -version
> > OpenSSH_3.9p1, OpenSSL 0.9.7d 17 Mar 2004
> >
> > I need help. Thanks !
> >
> > This is the debug messages:
> >
> > root@status:/var/tmp# ssh mica.dcc.ufmg.br -l root -vvv OpenSSH_3.9p1,
> > OpenSSL 0.9.7d 17 Mar 2004
> > debug1: Reading configuration data /usr/local/etc/ssh_config
> > debug2: ssh_connect: needpriv 0
> > debug1: Connecting to mica.dcc.ufmg.br [150.164.0.134] port 22.
> > debug1: Connection established.
> > debug1: permanently_set_uid: 0/0
> > debug1: identity file /root/.ssh/identity type -1
> > debug3: Not a RSA1 key file /root/.ssh/id_rsa.
> > debug2: key_type_from_name: unknown key type '-----BEGIN'
> > debug3: key_read: missing keytype
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug3: key_read: missing whitespace
> > debug2: key_type_from_name: unknown key type '-----END'
> > debug3: key_read: missing keytype
> > debug1: identity file /root/.ssh/id_rsa type 1
> > debug1: identity file /root/.ssh/id_dsa type -1
> > debug1: Remote protocol version 2.0, remote software version
> > OpenSSH_3.7.1p2
> > debug1: match: OpenSSH_3.7.1p2 pat OpenSSH*
> > debug1: Enabling compatibility mode for protocol 2.0
> > debug1: Local version string SSH-2.0-OpenSSH_3.9p1
> > debug2: fd 3 setting O_NONBLOCK
> > debug1: SSH2_MSG_KEXINIT sent
> > debug1: SSH2_MSG_KEXINIT received
> > debug2: kex_parse_kexinit:
> > diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-he
> > llman-group1-sha1
> > debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
> > debug2: kex_parse_kexinit:
> > aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-c
> > bc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
> > debug2: kex_parse_kexinit:
> > aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-c
> > bc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
> > debug2: kex_parse_kexinit:
> > hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-9
> > 6,hmac-md5-96
> > debug2: kex_parse_kexinit:
> > hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-9
> > 6,hmac-md5-96
> > debug2: kex_parse_kexinit: none,zlib
> > debug2: kex_parse_kexinit: none,zlib
> > debug2: kex_parse_kexinit:
> > debug2: kex_parse_kexinit:
> > debug2: kex_parse_kexinit: first_kex_follows 0
> > debug2: kex_parse_kexinit: reserved 0
> > debug2: kex_parse_kexinit:
> > diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
> > debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
> > debug2: kex_parse_kexinit:
> > aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-c
> > bc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
> > debug2: kex_parse_kexinit:
> > aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-c
> > bc,rijndael-cbc@lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
> > debug2: kex_parse_kexinit:
> > hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-9
> > 6,hmac-md5-96
> > debug2: kex_parse_kexinit:
> > hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-9
> > 6,hmac-md5-96
> > debug2: kex_parse_kexinit: none,zlib
> > debug2: kex_parse_kexinit: none,zlib
> > debug2: kex_parse_kexinit:
> > debug2: kex_parse_kexinit:
> > debug2: kex_parse_kexinit: first_kex_follows 0
> > debug2: kex_parse_kexinit: reserved 0
> > debug2: mac_init: found hmac-md5
> > debug1: kex: server->client aes128-cbc hmac-md5 none
> > debug2: mac_init: found hmac-md5
> > 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
> > debug2: dh_gen_key: priv key bits set: 136/256
> > debug2: bits set: 525/1024
> > debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
> > debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
> > debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts
> > debug3: check_host_in_hostfile: filename /usr/local/etc/ssh_known_hosts
> > debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts
> > debug3: check_host_in_hostfile: filename /usr/local/etc/ssh_known_hosts
> > debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts
> > debug3: check_host_in_hostfile: filename /usr/local/etc/ssh_known_hosts
> > debug2: no key of type 0 for host mica.dcc.ufmg.br
> > debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts2
> > debug3: check_host_in_hostfile: filename /usr/local/etc/ssh_known_hosts2
> > debug3: check_host_in_hostfile: filename /root/.ssh/known_hosts
> > debug3: check_host_in_hostfile: filename /usr/local/etc/ssh_known_hosts
> > debug2: no key of type 2 for host mica.dcc.ufmg.br Host key verification
> > failed.
> The problem is in the /etc/udev/rules.d/udev.rules
> there is a configuration problem in udev:
>
> # pty devices
> KERNEL="pty[p-za-e][0-9a-f]*", NAME="pty/m%n", SYMLINK="%k"
> #KERNEL="tty[p-za-e][0-9a-f]*", NAME="tty/s%n", SYMLINK="%k"
> KERNEL="tty[p-za-e][0-9a-f]*", NAME="pty/s%n", SYMLINK="%k"
>
> The comented line gets replaced with the line beneath it and it all gets
> better :).

Hi Radu,

 Yes, that was the problem. Now it´s ok.
 But how do you know it? What does that line in udev.rules mean ?

Thanks,
Charles