Re: Antw: Re: LDAP Authentication Problem

Hallo Christoph,

Du sagst hier, dass der Sniffer trace TLSv1 traffic zeigt. Es gibt mit
NetWare 6.5 ein Problem mit TLSv1 (fix in SP7). NetWare 6.5 kann kein
TLSv1 und wird auf einen SSL Client Hello Request mit TLSv1 nicht
antworten (timeout) anstatt ein SSLv3 Server Hello (bug).
Ich habe in der "ldap.conf" folgenden Eintrag von TLSv1 auf SSLv3
geaendert:

===============================
tls_ciphers SSLv3
===============================

Hier nochmal mein ldap.conf
============================================================
#
# This is the configuration file for the LDAP nameservice
# switch library, the LDAP PAM module and the shadow package.
#

# Your LDAP server. Must be resolvable without using LDAP.
host 10.2.1.241

# The distinguished name of the search base.
base o=ema

# The LDAP version to use (defaults to 3
# if supported by client library)
ldap_version 3

# Don't try forever if the LDAP server is not reacheable
bind_policy soft

# The distinguished name to bind to the server with.
# Optional: default is to bind anonymously.
#binddn cn=Manager,dc=example,dc=com

# 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=padl,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

# 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 nds

# 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

# Redirect users to a URL or somesuch on password
# changes.
#pam_password_prohibit_message Please visit http://internal to change your password.

# 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=People,dc=padl,dc=com?one
#nss_base_shadow ou=People,dc=padl,dc=com?one
#nss_base_group ou=Group,dc=padl,dc=com?one
#nss_base_hosts ou=Hosts,dc=padl,dc=com?one
#nss_base_services ou=Services,dc=padl,dc=com?one
#nss_base_networks ou=Networks,dc=padl,dc=com?one
#nss_base_protocols ou=Protocols,dc=padl,dc=com?one
#nss_base_rpc ou=Rpc,dc=padl,dc=com?one
#nss_base_ethers ou=Ethers,dc=padl,dc=com?one
#nss_base_netmasks ou=Networks,dc=padl,dc=com?ne
#nss_base_bootparams ou=Ethers,dc=padl,dc=com?one
#nss_base_aliases ou=Aliases,dc=padl,dc=com?one
#nss_base_netgroup ou=Netgroup,dc=padl,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 msSFUName
#nss_map_attribute uniqueMember posixMember
#nss_map_attribute userPassword msSFUPassword
#nss_map_attribute homeDirectory msSFUHomeDirectory
#nss_map_objectclass posixGroup Group
#pam_login_attribute msSFUName
#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
nss_map_attribute uniqueMember member
pam_filter objectclass=posixAccount
nss_base_passwd o=novell
nss_base_shadow o=novell
nss_base_group o=novell
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/certs/eDirectory.cert
#tls_cacertdir /etc/ssl/certs

# SSL cipher suite
# See man ciphers for syntax
tls_ciphers SSLv3

# Client certificate and key
# Use these, if your server requires client authentication.
#tls_cert
#tls_key
sels10ldap:/etc #
sels10ldap:/etc # gedit ldap.conf

(gedit:15479): Gtk-WARNING **: cannot open display:
sels10ldap:/etc #
sels10ldap:/etc # cat ldap.conf
#
# This is the configuration file for the LDAP nameservice
# switch library, the LDAP PAM module and the shadow package.
#

# Your LDAP server. Must be resolvable without using LDAP.
host 147.2.91.241

# The distinguished name of the search base.
base o=novell

# The LDAP version to use (defaults to 3
# if supported by client library)
ldap_version 3

# Don't try forever if the LDAP server is not reacheable
bind_policy soft

# The distinguished name to bind to the server with.
# Optional: default is to bind anonymously.
#binddn cn=Manager,dc=example,dc=com

# 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=padl,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

# 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 nds

# 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

# Redirect users to a URL or somesuch on password
# changes.
#pam_password_prohibit_message Please visit http://internal to change your password.

# 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=People,dc=padl,dc=com?one
#nss_base_shadow ou=People,dc=padl,dc=com?one
#nss_base_group ou=Group,dc=padl,dc=com?one
#nss_base_hosts ou=Hosts,dc=padl,dc=com?one
#nss_base_services ou=Services,dc=padl,dc=com?one
#nss_base_networks ou=Networks,dc=padl,dc=com?one
#nss_base_protocols ou=Protocols,dc=padl,dc=com?one
#nss_base_rpc ou=Rpc,dc=padl,dc=com?one
#nss_base_ethers ou=Ethers,dc=padl,dc=com?one
#nss_base_netmasks ou=Networks,dc=padl,dc=com?ne
#nss_base_bootparams ou=Ethers,dc=padl,dc=com?one
#nss_base_aliases ou=Aliases,dc=padl,dc=com?one
#nss_base_netgroup ou=Netgroup,dc=padl,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 msSFUName
#nss_map_attribute uniqueMember posixMember
#nss_map_attribute userPassword msSFUPassword
#nss_map_attribute homeDirectory msSFUHomeDirectory
#nss_map_objectclass posixGroup Group
#pam_login_attribute msSFUName
#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
nss_map_attribute uniqueMember member
pam_filter objectclass=posixAccount
nss_base_passwd o=novell
nss_base_shadow o=novell
nss_base_group o=novell
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/certs/eDirectory.cert
#tls_cacertdir /etc/ssl/certs

# SSL cipher suite
# See man ciphers for syntax
tls_ciphers SSLv3

# Client certificate and key
# Use these, if your server requires client authentication.
#tls_cert
#tls_key
=============================================================

Gruss

Klaus
.

Relevant Pages

  • SUMMARY: How to authenticate a RHEL client to SunOne 5.2 Directory Server anybody done this???
    ... I got it working by running authconfig on the Linux client and selecting ... LDAP for the authentication. ... Is there anything on the LDAP server I should check?? ... # SSL enabled. ...
    (SunManagers)
  • SSL and IPS (was RE: ssh and ids)
    ... How many simultaneous SSL sessions can be tracked?" ... I assume you're talking about a case in which the client constantly ... If you walk the possible session id space and ... The server chooses the session ID, ...
    (Focus-IDS)
  • Re: Kerberized authorization service
    ... whereas the LDAP solution is already what they do. ... the mail server could have an shell group with one ... that the authorization decision is no longer truly centralized. ... Kerberized conduit for passing the data from the client to some backend ...
    (comp.protocols.kerberos)
  • Re: possible LDAP over SSl bug in OS 10, 10.4, 10.5, 10.6
    ... These were both LDAP over SSL issues. ... > would access a LDAP server over SSL. ... > nca = without Certificate Authority certificate installed for the ldap ...
    (microsoft.public.mac.office.entourage)
  • Re: Kerberized authorization service
    ... whereas the LDAP solution is already what they do. ... the mail server could have an shell group with one ... While this could no doubt be made to work, it would tie the authorization ... This client and server could conceivably be created ...
    (comp.protocols.kerberos)