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Active Directory and Linux: ldap:// works, ldaps:// doesn't
I'm trying to configure Linux (RedHat Advanced Server 2.1) to authenticate
against Windows 2000 Active Directory. ldapsearch can connect OK, but
leapsearch SSL cannot.
I've attached a debug output from ldapsearch. Could someone offer some
troubleshooting hints?
Screen capture of the ldapsearch query and my ldap.conf are below.
Thanks!
=====Keith
[root@sna-u200y-wk91 root]# time ldapsearch -v -Hldaps://10.116.64.101 -b ""
-s base -x -d255
ldap_initialize( ldaps://10.116.64.101 )
ldap_create
ldap_url_parse_ext(ldaps://10.116.64.101)
ldap_bind_s
ldap_simple_bind_s
ldap_sasl_bind_s
ldap_sasl_bind
ldap_send_initial_request
ldap_new_connection
ldap_int_open_connection
ldap_connect_to_host: 10.116.64.101
ldap_new_socket: 3
ldap_prepare_socket: 3
ldap_connect_to_host: Trying 10.116.64.101:636
ldap_connect_timeout: fd: 3 tm: -1 async: 0
ldap_ndelay_on: 3
ldap_is_sock_ready: 3
ldap_ndelay_off: 3
TLS trace: SSL_connect:before/connect initialization
tls_write: want=124, written=124
0000: 80 7a 01 03 01 00 51 00 00 00 20 00 00 16 00 00 .z....Q... .....
0010: 13 00 00 0a 07 00 c0 00 00 66 00 00 05 00 00 04 .........f......
0020: 03 00 80 01 00 80 08 00 80 00 00 65 00 00 64 00 ...........e..d.
0030: 00 63 00 00 62 00 00 61 00 00 60 00 00 15 00 00 .c..b..a..`.....
0040: 12 00 00 09 06 00 40 00 00 14 00 00 11 00 00 08 ......@.........
0050: 00 00 06 00 00 03 04 00 80 02 00 80 a5 82 69 9d ..............i.
0060: f2 5d c3 24 5b 48 c3 30 20 be 3b 0d e1 e7 90 e1 .].$[H.0 .;.....
0070: 35 46 41 9b 1f 3b 58 87 13 ae 1e c0 5FA..;X.....
TLS trace: SSL_connect:SSLv2/v3 write client hello A
tls_read: want=7, got=0
TLS: can't connect.
ldap_perror
ldap_bind: Can't contact LDAP server
Here is ldap.conf, below:
# @(#)$Id: ldap.conf,v 1.2 2003/12/23 01:49:46 root Exp root $
#
# This is the configuration file for the LDAP nameservice
# switch library and the LDAP PAM module.
#
# PADL Software
# http://www.padl.com
#
# Your LDAP server. Must be resolvable without using LDAP.
host 10.116.64.101
# The distinguished name of the search base.
base dc=dev-local-test,dc=org
# Another way to specify your LDAP server is to provide an
# uri with the server name. This allows to use
# Unix Domain Sockets to connect to a local LDAP Server.
#uri ldap://127.0.0.1/
#uri ldaps://127.0.0.1/
#uri ldapi://%2fvar%2frun%2fldapi_sock/
# Note: %2f encodes the '/' used as directory separator
# The LDAP version to use (defaults to 3
# if supported by client library)
ldap_version 3
# The distinguished name to bind to the server with.
# Optional: default is to bind anonymously.
binddn anonymous@dev-local-test.org
# The credentials to bind with.
# Optional: default is no credential.
#bindpw secret
# The distinguished name to bind to the server with
# if the effective user ID is root. Password is
# stored in /etc/ldap.secret (mode 600)
#rootbinddn cn=manager,dc=example,dc=com
# The port.
# Optional: default is 389.
#port 389
# The search scope.
scope sub
#scope one
#scope base
# Search timelimit
#timelimit 30
# Bind timelimit
#bind_timelimit 30
# Idle timelimit; client will close connections
# (nss_ldap only) if the server has not been contacted
# for the number of seconds specified below.
#idle_timelimit 3600
# Filter to AND with uid=%s
#pam_filter objectclass=account
# The user ID attribute (defaults to uid)
#pam_login_attribute uid
# Search the root DSE for the password policy (works
# with Netscape Directory Server)
#pam_lookup_policy yes
# Check the 'host' attribute for access control
# Default is no; if set to yes, and user has no
# value for the host attribute, and pam_ldap is
# configured for account management (authorization)
# then the user will not be allowed to login.
#pam_check_host_attr yes
# Group to enforce membership of
#pam_groupdn cn=PAM,ou=Groups,dc=example,dc=com
# Group member attribute
#pam_member_attribute uniquemember
# Specify a minium or maximum UID number allowed
#pam_min_uid 0
#pam_max_uid 0
# Template login attribute, default template user
# (can be overriden by value of former attribute
# in user's entry)
#pam_login_attribute userPrincipalName
#pam_template_login_attribute uid
#pam_template_login nobody
# HEADS UP: the pam_crypt, pam_nds_passwd,
# and pam_ad_passwd options are no
# longer supported.
# Do not hash the password at all; presume
# the directory server will do it, if
# necessary. This is the default.
#pam_password clear
# Hash password locally; required for University of
# Michigan LDAP server, and works with Netscape
# Directory Server if you're using the UNIX-Crypt
# hash mechanism and not using the NT Synchronization
# service.
#pam_password crypt
# Remove old password first, then update in
# cleartext. Necessary for use with Novell
# Directory Services (NDS)
#pam_password nds
# Update Active Directory password, by
# creating Unicode password and updating
# unicodePwd attribute.
#pam_password ad
# Use the OpenLDAP password change
# extended operation to update the password.
#pam_password exop
# RFC2307bis naming contexts
# Syntax:
# nss_base_XXX base?scope?filter
# where scope is {base,one,sub}
# and filter is a filter to be &'d with the
# default filter.
# You can omit the suffix eg:
# nss_base_passwd ou=People,
# to append the default base DN but this
# may incur a small performance impact.
nss_base_passwd ou=users,sb=keith_testing,dc=dev-local-test,dc=org?one
nss_base_shadow ou=users,sb=keith_testing,dc=dev-local-test,dc=org?one
nss_base_group ou=group,sb=keith_testing,dc=dev-local-test,dc=org?one
#nss_base_hosts ou=Hosts,dc=example,dc=com?one
#nss_base_services ou=Services,dc=example,dc=com?one
#nss_base_networks ou=Networks,dc=example,dc=com?one
#nss_base_protocols ou=Protocols,dc=example,dc=com?one
#nss_base_rpc ou=Rpc,dc=example,dc=com?one
#nss_base_ethers ou=Ethers,dc=example,dc=com?one
#nss_base_netmasks ou=Networks,dc=example,dc=com?ne
#nss_base_bootparams ou=Ethers,dc=example,dc=com?one
#nss_base_aliases ou=Aliases,dc=example,dc=com?one
#nss_base_netgroup ou=Netgroup,dc=example,dc=com?one
# attribute/objectclass mapping
# Syntax:
#nss_map_attribute rfc2307attribute mapped_attribute
#nss_map_objectclass rfc2307objectclass mapped_objectclass
# configure --enable-nds is no longer supported.
# For NDS now do:
#nss_map_attribute uniqueMember member
# configure --enable-mssfu-schema is no longer supported.
# For MSSFU now do:
nss_map_objectclass posixAccount User
nss_map_attribute uid sAMAccountName
nss_map_attribute uniqueMember Member
nss_map_attribute userPassword msSFUPassword
nss_map_attribute homeDirectory msSFUHomeDirectory
nss_map_objectclass posixGroup Group
nss_map_attribute cn groupName
pam_login_attribute sAMAccountName
pam_filter objectclass=User
pam_password ad
# configure --enable-authpassword is no longer supported
# For authPassword support, now do:
#nss_map_attribute userPassword authPassword
#pam_password nds
# For IBM SecureWay support, do:
#nss_map_objectclass posixAccount aixAccount
#nss_map_attribute uid userName
#nss_map_attribute gidNumber gid
#nss_map_attribute uidNumber uid
#nss_map_attribute userPassword passwordChar
#nss_map_objectclass posixGroup aixAccessGroup
#nss_map_attribute cn groupName
#nss_map_attribute uniqueMember member
#pam_login_attribute userName
#pam_filter objectclass=aixAccount
#pam_password clear
# Netscape SDK LDAPS
#ssl on
# Netscape SDK SSL options
#sslpath /etc/ssl/certs/cert7.db
# OpenLDAP SSL mechanism
# start_tls mechanism uses the normal LDAP port, LDAPS typically 636
#ssl start_tls
#ssl on
# OpenLDAP SSL options
# Require and verify server certificate (yes/no)
# Default is "no"
#tls_checkpeer yes
# CA certificates for server certificate verification
# At least one of these are required if tls_checkpeer is "yes"
#tls_cacertfile /etc/ssl/ca.cert
#tls_cacertdir /etc/ssl/certs
# SSL cipher suite
# See man ciphers for syntax
#tls_ciphers TLSv1
# Client certificate and key
# Use these, if your server requires client authentication.
#tls_cert
#tls_key
ssl yes
pam_password md5
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