Cant login using ssh; no password prompt

[Tofik Suleymanov]

Mauricio Brunstein wrote:

>Hi!
>
>I've installed a new box with FreeBSD 6.0 (workbench) and cant login
>to it by means of ssh from the internal or external network. The box
>is installed from the release version, and worked fine using the
>console. I also had accessed other hosts form there using ssh. I did
>not patch the box in any way, is just the 6.0 release version. I can
>not login to that box form a local OpenBSD 3.7 box, a 5.4 box (as
>shown below) or using putty 0.57 from the Internet (the putty window
>closes after some time without asking me for a password) .
>
>Anybody have and idea of what could be happening?
>
>Thank you in advance,
>Mauro
>
>Form a 5.4 Box,
>
>mauro at Server:~> uname -a
>FreeBSD Server.blstar 5.4-RELEASE-p8 FreeBSD 5.4-RELEASE-p8 #0: Sun
>Oct 16 04:00:03 ART 2005     mauro@:/usr/obj/usr/src/sys/GENERIC  i386
>
>I issue the following command:
>
>mauro at Server:~> ssh -vvv workbench
>OpenSSH_3.8.1p1 FreeBSD-20040419, OpenSSL 0.9.7e-p1 25 Oct 2004
>debug1: Reading configuration data /etc/ssh/ssh_config
>debug2: ssh_connect: needpriv 0
>debug1: Connecting to workbench.blstar [192.168.1.34] port 22.
>debug1: Connection established.
>debug1: identity file /home/mauro/.ssh/identity type -1
>debug1: identity file /home/mauro/.ssh/id_rsa type -1
>debug1: identity file /home/mauro/.ssh/id_dsa type -1
>debug1: Remote protocol version 2.0, remote software version
>OpenSSH_4.2p1 FreeBSD-20050903
>debug1: match: OpenSSH_4.2p1 FreeBSD-20050903 pat OpenSSH*
>debug1: Enabling compatibility mode for protocol 2.0
>debug1: Local version string SSH-2.0-OpenSSH_3.8.1p1 FreeBSD-20040419
>debug1: SSH2_MSG_KEXINIT sent
>debug1: SSH2_MSG_KEXINIT received
>debug2: kex_parse_kexinit:
>diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
>debug2: kex_parse_kexinit: ssh-dss,ssh-rsa
>debug2: kex_parse_kexinit:
>aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc at 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-cbc,rijndael-cbc at lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
>debug2: kex_parse_kexinit:
>hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
>debug2: kex_parse_kexinit:
>hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,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-group14-sha1,diffie-hellman-group1-sha1
>debug2: kex_parse_kexinit: ssh-dss
>debug2: kex_parse_kexinit:
>aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc at lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
>debug2: kex_parse_kexinit:
>aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour128,arcfour256,arcfour,aes192-cbc,aes256-cbc,rijndael-cbc at lysator.liu.se,aes128-ctr,aes192-ctr,aes256-ctr
>debug2: kex_parse_kexinit:
>hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
>debug2: kex_parse_kexinit:
>hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160 at openssh.com,hmac-sha1-96,hmac-md5-96
>debug2: kex_parse_kexinit: none,zlib at openssh.com
>debug2: kex_parse_kexinit: none,zlib at openssh.com
>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: 129/256
>debug2: bits set: 536/1024
>debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
>debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
>debug3: check_host_in_hostfile: filename /home/mauro/.ssh/known_hosts
>debug3: check_host_in_hostfile: match line 3
>debug1: Host 'workbench.blstar' is known and matches the DSA host key.
>debug1: Found key in /home/mauro/.ssh/known_hosts:3
>debug2: bits set: 497/1024
>debug1: ssh_dss_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/mauro/.ssh/identity (0x0)
>debug2: key: /home/mauro/.ssh/id_rsa (0x0)
>debug2: key: /home/mauro/.ssh/id_dsa (0x0)
>debug1: Authentications that can continue: publickey,keyboard-interactive
>debug3: start over, passed a different list publickey,keyboard-interactive
>debug3: preferred publickey,keyboard-interactive,password
>debug3: authmethod_lookup publickey
>debug3: remaining preferred: keyboard-interactive,password
>debug3: authmethod_is_enabled publickey
>debug1: Next authentication method: publickey
>debug1: Trying private key: /home/mauro/.ssh/identity
>debug3: no such identity: /home/mauro/.ssh/identity
>debug1: Trying private key: /home/mauro/.ssh/id_rsa
>debug3: no such identity: /home/mauro/.ssh/id_rsa
>debug1: Trying private key: /home/mauro/.ssh/id_dsa
>debug3: no such identity: /home/mauro/.ssh/id_dsa
>debug2: we did not send a packet, disable method
>debug3: authmethod_lookup keyboard-interactive
>debug3: remaining preferred: password
>debug3: authmethod_is_enabled keyboard-interactive
>debug1: Next authentication method: keyboard-interactive
>debug2: userauth_kbdint
>debug2: we sent a keyboard-interactive packet, wait for reply
>Connection closed by 192.168.1.34
>mauro at Server:~>
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>  
>
setting
UseDNS no
in sshd.conf will also do the trick.