I recently updated several boxes up to FreeBSD 7.1-PRE having had a
working OpenLDAP binding. After this update, I can't log in on those
boxes connected to an LDAP server via ssh!
The boxes also run lighttpd as a webserver with remote LDAP
authentication for several user spaces and this still works as expected.
I can log in locally on the boxes in question, even with LDAP backed
users, so login works fine, also doeing a 'su - USER' as root works
fine, but no sshd connects. Only local users (stored in /etc/passwd) can
login in via ssh.
The error message on console is like this: sshd[16434]: fatal:
login_get_lastlog: Cannot find account for uid 2001
It's funny, seems that sshd never made it to LDAP although I see traffic
on the LDAP server's log.
I append, for completeness, /etc/pam.d/sshd, /etc/ssh/sshd_conf
#
# $FreeBSD: src/etc/pam.d/sshd,v 1.16 2007/06/10 18:57:20 yar Exp $
#
# PAM configuration for the "sshd" service
#
# auth
auth sufficient pam_opie.so no_warn
no_fake_prompts
#auth requisite pam_opieaccess.so no_warn allow_local
#auth sufficient pam_krb5.so no_warn
try_first_pass
#auth sufficient pam_ssh.so no_warn
try_first_pass
auth sufficient /usr/local/lib/pam_ldap.so no_warn
try_first_pass ignore_authinfo_unavail
auth required pam_unix.so no_warn
try_first_pass
# account
account required pam_nologin.so
#account required pam_krb5.so
account required pam_login_access.so
account sufficient /usr/local/lib/pam_ldap.so
account required pam_unix.so
# session
#session optional pam_ssh.so
session optional /usr/local/lib/pam_mkhomedir.so
skel=/usr/share/skel mode=0750
session required pam_permit.so
# password
#password sufficient pam_krb5.so no_warn
try_first_pass
password sufficient /usr/local/lib/pam_ldap.so no_warn
use_authtok
password required pam_unix.so no_warn
try_first_pass
# $OpenBSD: sshd_config,v 1.80 2008/07/02 02:24:18 djm Exp $
# $FreeBSD: src/crypto/openssh/sshd_config,v 1.47.2.1 2008/09/01 20:03:13
des 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
# 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.
# Note that some of FreeBSD's defaults differ from OpenBSD's, and
# FreeBSD has a few additional options.
VersionAddendum FreeBSD-20080901
Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
# Disable legacy (protocol version 1) support in the server for new
# installations. In future the default will change to require explicit
# activation of protocol 1
Protocol 2
# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
#HostKey /etc/ssh/ssh_host_rsa_key
#HostKey /etc/ssh/ssh_host_dsa_key
# Lifetime and size of ephemeral version 1 server key
KeyRegenerationInterval 1h
ServerKeyBits 1024
# Logging
# obsoletes QuietMode and FascistLogging
SyslogFacility AUTH
LogLevel INFO
# Authentication:
#LoginGraceTime 2m
#PermitRootLogin no
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10
#RSAAuthentication yes
#PubkeyAuthentication yes
#AuthorizedKeysFile .ssh/authorized_keys
# For this to work you will also need host keys in /etc/ssh/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
# Change to yes to enable built-in password authentication.
PasswordAuthentication no
#PermitEmptyPasswords no
# Change to no to disable PAM authentication
# ChallengeResponseAuthentication yes
ChallengeResponseAuthentication yes
# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
# GSSAPI options
#GSSAPIAuthentication no
#GSSAPICleanupCredentials yes
# Set this to 'no' to disable PAM authentication, account processing,
# and session processing. If this is enabled, PAM authentication will
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication. Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
UsePAM yes
#AllowAgentForwarding yes
#AllowTcpForwarding yes
#GatewayPorts no
X11Forwarding yes
#X11DisplayOffset 10
#X11UseLocalhost yes
PrintMotd yes
PrintLastLog yes
TCPKeepAlive yes
#UseLogin no
UsePrivilegeSeparation yes
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10
#PermitTunnel no
#ChrootDirectory none
# no default banner path
#Banner none
# override default of no subsystems
Subsystem sftp /usr/libexec/sftp-server
# Example of overriding settings on a per-user basis
#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# ForceCommand cvs server
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