Hello all -
I am experimenting with Kerberized-ssh for the first time. I have
configured a test KDC and created a test Realm. I have tried connecting
from the KDC to the KDC using ssh with 'gssapi-with-mic' with no luck. I
am finally stuck as I am not receiving any relevant error
messages. Any help would be appreciated. Below are the details:
1) Compiled MIT Kerberos 1.4.
krb5-1.4.tar.gz
Installed in /usr/local.
(Configured KDC)
2) Compiled OpenSSH v3.9p1.
openssh-3.9p1.tar.gz
Configured using the following:
./configure --prefix=/usr/local/ssh --with-tcp-wrappers=/usr/local \
--with-kerberos5=/usr/local --with-ssl-dir=/usr/local/ssl --with-pam \
--with-privsep-user=sshd
NOTE: Although I configured with tcp wrapper support and PAM support, I
have yet to enable either.
3) kinit looks OK.
wcsand2-$ /usr/local/bin/kinit mmiller1
Password for mmiller1@WCSAND2.WELLCARE.COM:
4) klist looks OK as well.
wcsand2-$ /usr/local/bin/klist
Ticket cache: FILE:/tmp/krb5cc_1000
Default principal: mmiller1@WCSAND2.WELLCARE.COM
Valid starting Expires Service principal 04/07/05
16:10:03
04/08/05 16:10:03 krbtgt/WCSAND2.WELLCARE.COM@WCSAND2.WELLCARE.COM
Kerberos 4 ticket cache: /tmp/tkt1000 klist: You have no tickets cached
5) Attempted connection - end result 'Permission denied':
wcsand2-mmiller1@wcsand2:~$ /usr/local/ssh/bin/ssh -vvv -o
PreferredAuthentications=gssapi-with-mic mmiller1@wcsand2
OpenSSH_3.9p1, OpenSSL 0.9.7d 17 Mar 2004
debug1: Reading configuration data /usr/local/ssh/etc/ssh_config
debug2: ssh_connect: needpriv 0
debug1: Connecting to wcsand2.wellcare.com [10.206.0.205] port 22.
debug1: Connection established.
debug1: identity file /export/home/miller1/.ssh/identity type -1
debug1: identity file /export/home/miller1/.ssh/id_rsa type -1
debug1: identity file /export/home/miller1/.ssh/id_dsa type -1
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
debug2: fd 4 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-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-cbc,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-cbc,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-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@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-rsa,ssh-dss
debug2: kex_parse_kexinit:
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc,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-cbc,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-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit:
hmac-md5,hmac-sha1,hmac-ripemd160,hmac-ripemd160@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: 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: 138/256
debug2: bits set: 518/1024
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug3: check_host_in_hostfile:
filename /export/home/miller1/.ssh/known_hosts
debug3: check_host_in_hostfile: match line 4
debug3: check_host_in_hostfile:
filename /export/home/miller1/.ssh/known_hosts
debug3: check_host_in_hostfile: match line 3
debug1: Host 'wcsand2.wellcare.com' is known and matches the RSA host
key.
debug1: Found key in /export/home/miller1/.ssh/known_hosts:4
debug2: bits set: 508/1024
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: /export/home/miller1/.ssh/identity (0)
debug2: key: /export/home/miller1/.ssh/id_rsa (0)
debug2: key: /export/home/miller1/.ssh/id_dsa (0)
debug1: Authentications that can continue:
publickey,gssapi-with-mic,password,keyboard-interactive
debug3: start over, passed a different list
publickey,gssapi-with-mic,password,keyboard-interactive
debug3: preferred gssapi-with-mic
debug3: authmethod_lookup gssapi-with-mic
debug3: remaining preferred:
debug1: No more authentication methods to try.
Permission denied
(publickey,gssapi-with-mic,password,keyboard-interactive).
6) Server-side debug:
wcsand2-$ /usr/local/ssh/sbin/sshd -ddd
debug2: load_server_config: filename /usr/local/ssh/etc/sshd_config
debug2: load_server_config: done config len = 562
debug2: parse_server_config: config /usr/local/ssh/etc/sshd_config len
562
debug1: sshd version OpenSSH_3.9p1
debug1: private host key: #0 type 0 RSA1
debug3: Not a RSA1 key file /usr/local/etc/ssh_host_rsa_key.
debug1: read PEM private key done: type RSA
debug1: private host key: #1 type 1 RSA
debug3: Not a RSA1 key file /usr/local/etc/ssh_host_dsa_key.
debug1: read PEM private key done: type DSA
debug1: private host key: #2 type 2 DSA
debug1: rexec_argv[0]='/usr/local/ssh/sbin/sshd'
debug1: rexec_argv[1]='-ddd'
debug2: fd 4 setting O_NONBLOCK
debug1: Bind to port 22 on ::.
Server listening on :: port 22.
debug2: fd 5 setting O_NONBLOCK
debug1: Bind to port 22 on 0.0.0.0.
Server listening on 0.0.0.0 port 22.
Generating 768 bit RSA key.
RSA key generation complete.
debug1: fd 6 clearing O_NONBLOCK
debug1: Server will not fork when running in debugging mode.
debug3: send_rexec_state: entering fd = 11 config len 562
debug3: ssh_msg_send: type 0
debug3: send_rexec_state: done
debug1: rexec start in 6 out 6 newsock 6 pipe -1 sock 11
7) And lastly here are the ssh config files:
wcsand2-$ cat /usr/local/ssh/etc/ssh*config
# $OpenBSD: ssh_config,v 1.19 2003/08/13 08:46:31 markus Exp $
# This is the ssh client system-wide configuration file. See
# ssh_config(5) for more information. This file provides defaults for
# users, and the values can be changed in per-user configuration files
# or on the command line.
# Configuration data is parsed as follows:
# 1. command line options
# 2. user-specific file
# 3. system-wide file
# Any configuration value is only changed the first time it is set.
# Thus, host-specific definitions should be at the beginning of the
# configuration file, and defaults at the end.
# Site-wide defaults for various options
GSSAPIDelegateCredentials yes
# Host *
# ForwardAgent no
# ForwardX11 no
# RhostsRSAAuthentication no
# RSAAuthentication yes
# PasswordAuthentication yes
# HostbasedAuthentication no
# BatchMode no
# CheckHostIP yes
# AddressFamily any
# ConnectTimeout 0
# StrictHostKeyChecking ask
# IdentityFile ~/.ssh/identity
# IdentityFile ~/.ssh/id_rsa
# IdentityFile ~/.ssh/id_dsa
# Port 22
# Protocol 2,1
# Cipher 3des
# Ciphers
aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,arcfour,aes192-cbc,aes256-cbc
# EscapeChar ~
----------------------------------
# $OpenBSD: sshd_config,v 1.69 2004/05/23 23:59:53 dtucker Exp $
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
# This sshd was compiled with
PATH=/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/ssh/bin
# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented. Uncommented options change a
# default value.
#Port 22
#Protocol 2,1
#ListenAddress 0.0.0.0
#ListenAddress ::
# HostKey for protocol version 1
HostKey /usr/local/etc/ssh_host_key
# HostKeys for protocol version 2
HostKey /usr/local/etc/ssh_host_rsa_key
HostKey /usr/local/etc/ssh_host_dsa_key
# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 768
# Logging
#obsoletes QuietMode and FascistLogging
SyslogFacility AUTH
LogLevel INFO
# Authentication:
#LoginGraceTime 2m
#PermitRootLogin yes
#StrictModes yes
#MaxAuthTries 6
#RSAAuthentication yes
#PubkeyAuthentication yes
#AuthorizedKeysFile .ssh/authorized_keys
# For this to work you will also need host keys
in /usr/local/ssh/etc/ssh_known_hosts
#RhostsRSAAuthentication no
# similar for protocol version 2
#HostbasedAuthentication no
# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
#IgnoreRhosts yes
# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no
# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes
# Kerberos options
KerberosAuthentication yes
KerberosOrLocalPasswd no
KerberosTicketCleanup yes
#KerberosGetAFSToken no
# GSSAPI options
GSSAPIAuthentication yes
GSSAPICleanupCredentials yes
# Set this to 'yes' to enable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication mechanism.
# Depending on your PAM configuration, this may bypass the setting of
# PasswordAuthentication, PermitEmptyPasswords, and
# "PermitRootLogin without-password". If you just want the PAM account
and
# session checks to run without PAM authentication, then enable this but
set
# ChallengeResponseAuthentication=no
UsePAM no
AllowTcpForwarding yes
#GatewayPorts no
X11Forwarding yes
X11DisplayOffset 10
X11UseLocalhost yes
#PrintMotd yes
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
UsePrivilegeSeparation yes
#PermitUserEnvironment no
#Compression yes
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS yes
PidFile /var/run/sshd.pid
#MaxStartups 10
# no default banner path
#Banner /some/path
# override default of no subsystems
Subsystem sftp /usr/local/ssh/libexec/sftp-server
