Probleme mit SSO Apache

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insideAC
OTRS newbie
Posts: 30
Joined: 06 Sep 2013, 11:13
OTRS Version?: 3.2.9

Probleme mit SSO Apache

Post by insideAC »

Hallo,

ich habe heute auf 4.0.5 aktualisiert und versucht nach folgendem Artikel SSO mit unserem ActiveDirectory zu aktvieren:
http://wiki.otterhub.org/index.php?titl ... ith_Apache

Das funktioniert auch soweit ganz gut, der automatische Login in IE und Chrome funktioniert.
Nach einer gewissen Zeit (oder bei gewissen Aufrufen) kommt es allerdings dazu, dass ein Popup erscheint, welches zur Eingabe der Zugangsdaten auffordert.
In diesem Moment taucht dann im Apache-Error-Log folgende Meldung auf:

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[error] SMB Server connection not open in state 3 for /otrs/index.pl
Beim Aufruf der Seite taucht im gleichen Logfile auch immer folgende Meldung auf:

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[error] Bad/Missing NTLM/Basic Authorization Header for /otrs/index.pl
Wenn der erste Fehler auftritt, ist es auch schon passiert, dass OTRS nicht mehr aufrufbar war.

Hat jemand mit so etwas Erfahrung und kann vielleicht helfen?

Hier die Versionen:
Apache/2.2.22 (Ubuntu)
OTRS 4.0.5
Danke und Grüße
Roland

insideAC
OTRS newbie
Posts: 30
Joined: 06 Sep 2013, 11:13
OTRS Version?: 3.2.9

Re: Probleme mit SSO Apache

Post by insideAC »

Hat denn keiner eine Idee?

Rooobaaat
OTRS wizard
Posts: 432
Joined: 11 Sep 2014, 16:28
OTRS Version?: OTRS 5.0.x

Re: Probleme mit SSO Apache

Post by Rooobaaat »

Man müsste vllt. noch etwas mehr zu deiner Konfiguration wissen. Z.b. Hast du nen Proxy-Server, Apache-Config und und und :)
My english is better than your german :P

"Produktiv": OTRS: 5.0.x, OTRS::ITSM 5.0.x
"Testing": OTRS 6 git
OS: Debian 8.0 (Jessie)
Apache2.4.10/MySQL 5.5.41

insideAC
OTRS newbie
Posts: 30
Joined: 06 Sep 2013, 11:13
OTRS Version?: 3.2.9

Re: Probleme mit SSO Apache

Post by insideAC »

Hallo,

sorry, dann poste ich jetzt hier mal ein paar Informationen:
Einen Proxy-Server nutzen wir, aber es gibt eine Ausnahme für den OTRS-Server.

apache2.conf

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#
# Based upon the NCSA server configuration files originally by Rob McCool.
#
# This is the main Apache server configuration file.  It contains the
# configuration directives that give the server its instructions.
# See http://httpd.apache.org/docs/2.2/ for detailed information about
# the directives.
#
# Do NOT simply read the instructions in here without understanding
# what they do.  They're here only as hints or reminders.  If you are unsure
# consult the online docs. You have been warned.  
#
# The configuration directives are grouped into three basic sections:
#  1. Directives that control the operation of the Apache server process as a
#     whole (the 'global environment').
#  2. Directives that define the parameters of the 'main' or 'default' server,
#     which responds to requests that aren't handled by a virtual host.
#     These directives also provide default values for the settings
#     of all virtual hosts.
#  3. Settings for virtual hosts, which allow Web requests to be sent to
#     different IP addresses or hostnames and have them handled by the
#     same Apache server process.
#
# Configuration and logfile names: If the filenames you specify for many
# of the server's control files begin with "/" (or "drive:/" for Win32), the
# server will use that explicit path.  If the filenames do *not* begin
# with "/", the value of ServerRoot is prepended -- so "foo.log"
# with ServerRoot set to "/etc/apache2" will be interpreted by the
# server as "/etc/apache2/foo.log".
#

### Section 1: Global Environment
#
# The directives in this section affect the overall operation of Apache,
# such as the number of concurrent requests it can handle or where it
# can find its configuration files.
#

#
# ServerRoot: The top of the directory tree under which the server's
# configuration, error, and log files are kept.
#
# NOTE!  If you intend to place this on an NFS (or otherwise network)
# mounted filesystem then please read the LockFile documentation (available
# at <URL:http://httpd.apache.org/docs/2.2/mod/mpm_common.html#lockfile>);
# you will save yourself a lot of trouble.
#
# Do NOT add a slash at the end of the directory path.
#
#ServerRoot "/etc/apache2"

#
# The accept serialization lock file MUST BE STORED ON A LOCAL DISK.
#
LockFile ${APACHE_LOCK_DIR}/accept.lock

#
# PidFile: The file in which the server should record its process
# identification number when it starts.
# This needs to be set in /etc/apache2/envvars
#
PidFile ${APACHE_PID_FILE}

#
# Timeout: The number of seconds before receives and sends time out.
#
Timeout 300

#
# KeepAlive: Whether or not to allow persistent connections (more than
# one request per connection). Set to "Off" to deactivate.
#
KeepAlive On

#
# MaxKeepAliveRequests: The maximum number of requests to allow
# during a persistent connection. Set to 0 to allow an unlimited amount.
# We recommend you leave this number high, for maximum performance.
#
MaxKeepAliveRequests 100

#
# KeepAliveTimeout: Number of seconds to wait for the next request from the
# same client on the same connection.
#
KeepAliveTimeout 5

##
## Server-Pool Size Regulation (MPM specific)
## 

# prefork MPM
# StartServers: number of server processes to start
# MinSpareServers: minimum number of server processes which are kept spare
# MaxSpareServers: maximum number of server processes which are kept spare
# MaxClients: maximum number of server processes allowed to start
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule mpm_prefork_module>
    StartServers          5
    MinSpareServers       5
    MaxSpareServers      10
    MaxClients          150
    MaxRequestsPerChild   0
</IfModule>

# worker MPM
# StartServers: initial number of server processes to start
# MinSpareThreads: minimum number of worker threads which are kept spare
# MaxSpareThreads: maximum number of worker threads which are kept spare
# ThreadLimit: ThreadsPerChild can be changed to this maximum value during a
#              graceful restart. ThreadLimit can only be changed by stopping
#              and starting Apache.
# ThreadsPerChild: constant number of worker threads in each server process
# MaxClients: maximum number of simultaneous client connections
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule mpm_worker_module>
    StartServers          2
    MinSpareThreads      25
    MaxSpareThreads      75 
    ThreadLimit          64
    ThreadsPerChild      25
    MaxClients          150
    MaxRequestsPerChild   0
</IfModule>

# event MPM
# StartServers: initial number of server processes to start
# MinSpareThreads: minimum number of worker threads which are kept spare
# MaxSpareThreads: maximum number of worker threads which are kept spare
# ThreadsPerChild: constant number of worker threads in each server process
# MaxClients: maximum number of simultaneous client connections
# MaxRequestsPerChild: maximum number of requests a server process serves
<IfModule mpm_event_module>
    StartServers          2
    MinSpareThreads      25
    MaxSpareThreads      75 
    ThreadLimit          64
    ThreadsPerChild      25
    MaxClients          150
    MaxRequestsPerChild   0
</IfModule>

# These need to be set in /etc/apache2/envvars
User ${APACHE_RUN_USER}
Group ${APACHE_RUN_GROUP}

#
# AccessFileName: The name of the file to look for in each directory
# for additional configuration directives.  See also the AllowOverride
# directive.
#

AccessFileName .htaccess

#
# The following lines prevent .htaccess and .htpasswd files from being 
# viewed by Web clients. 
#
<Files ~ "^\.ht">
    Order allow,deny
    Deny from all
    Satisfy all
</Files>

#
# DefaultType is the default MIME type the server will use for a document
# if it cannot otherwise determine one, such as from filename extensions.
# If your server contains mostly text or HTML documents, "text/plain" is
# a good value.  If most of your content is binary, such as applications
# or images, you may want to use "application/octet-stream" instead to
# keep browsers from trying to display binary files as though they are
# text.
#
# It is also possible to omit any default MIME type and let the
# client's browser guess an appropriate action instead. Typically the
# browser will decide based on the file's extension then. In cases
# where no good assumption can be made, letting the default MIME type
# unset is suggested  instead of forcing the browser to accept
# incorrect  metadata.
#
DefaultType None


#
# HostnameLookups: Log the names of clients or just their IP addresses
# e.g., www.apache.org (on) or 204.62.129.132 (off).
# The default is off because it'd be overall better for the net if people
# had to knowingly turn this feature on, since enabling it means that
# each client request will result in AT LEAST one lookup request to the
# nameserver.
#
HostnameLookups Off

# ErrorLog: The location of the error log file.
# If you do not specify an ErrorLog directive within a <VirtualHost>
# container, error messages relating to that virtual host will be
# logged here.  If you *do* define an error logfile for a <VirtualHost>
# container, that host's errors will be logged there and not here.
#
ErrorLog ${APACHE_LOG_DIR}/error.log

#
# LogLevel: Control the number of messages logged to the error_log.
# Possible values include: debug, info, notice, warn, error, crit,
# alert, emerg.
#
LogLevel warn

# Include module configuration:
Include mods-enabled/*.load
Include mods-enabled/*.conf

# Include all the user configurations:
Include httpd.conf

# Include ports listing
Include ports.conf

#
# The following directives define some format nicknames for use with
# a CustomLog directive (see below).
# If you are behind a reverse proxy, you might want to change %h into %{X-Forwarded-For}i
#
LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent

# Include of directories ignores editors' and dpkg's backup files,
# see README.Debian for details.

# Include generic snippets of statements
Include conf.d/

# Include the virtual host configurations:
Include sites-enabled/
otrs.conf (apache)

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<IfModule mod_perl.c>

    # Setup environment and preload modules
    Perlrequire /opt/otrs/scripts/apache2-perl-startup.pl

    # Reload Perl modules when changed on disk
    PerlModule Apache2::Reload
    PerlInitHandler Apache2::Reload

    # general mod_perl2 options
    <Location /otrs>
#        ErrorDocument 403 /otrs/customer.pl
        ErrorDocument 403 /otrs/index.pl
        SetHandler  perl-script
        PerlResponseHandler ModPerl::Registry
	PerlAuthenHandler Apache2::AuthenNTLM
  	AuthType ntlm,basic
  	AuthName Basic
  	require valid-user
  	PerlAddVar ntdomain "DOMAIN domaincontroller"
  	PerlSetVar defaultdomain DOMAIN
  	PerlSetVar splitdomainprefix 1
        Options +ExecCGI
        PerlOptions +ParseHeaders
        PerlOptions +SetupEnv
        Order allow,deny
        Allow from all
    </Location>

    # mod_perl2 options for GenericInterface
    <Location /otrs/nph-genericinterface.pl>
        PerlOptions -ParseHeaders
    </Location>

</IfModule>
Config.pm

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#$Self->{'AuthModule'} = 'Kernel::System::Auth::LDAP';
$Self->{'AuthModule'} = 'Kernel::System::CustomerAuth::HTTPBasicAuth';
$Self->{'AuthModule::LDAP::Host'} = 'domaincontroller.domain.de';
$Self->{'AuthModule::LDAP::BaseDN'} = 'dc=domain,dc=de';
$Self->{'AuthModule::LDAP::UID'} = 'sAMAccountName';
#$Self->{'AuthModule::LDAP::GroupDN'} = 'cn=otrs,cn=users,dc=domain,dc=de';
$Self->{'AuthModule::LDAP::SearchUserDN'} = 'user@domain.de';
$Self->{'AuthModule::LDAP::SearchUserPw'} = 'SomePassword';
Zudem gibt es in der /etc/hosts einen Eintrag, damit der Domaincontroller aufgelöst werden kann, sonst geht gar nichts.
Das SSO funktioniert erst einmal. Aber ständig, wenn man auf ein Ticket klickt, kommt dann eine Login-Box. und die Fehlermeldungen (siehe oben) werden geloggt.

Vielen Dank!

insideAC
OTRS newbie
Posts: 30
Joined: 06 Sep 2013, 11:13
OTRS Version?: 3.2.9

Re: Probleme mit SSO Apache

Post by insideAC »

Ich habe noch ein wenig geschaut und folgende neue Erkenntnis erlangt:

Das Authentifizierungs-Popup und die Fehlermeldung im Log treten immer nur bei größeren Tickets, mit mehreren Einträgen auf. Das Ticket wird geöffnet und nach kurzer Zeit, kommt die Auth-Box. Klickt man auf "Abbrechen", dann erscheint statt einem Artikel (z.B. Notiz) "Authorization Required" (siehe Bild).

Langsam gehe mir die Ideen aus. Hat das denn noch keiner beobachtet?
Wenn es mit dem Perl-Modul nicht ans Laufen zu bekommen ist... Wie macht Ihr denn das SSO gegen AD mit 4.0.5?
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insideAC
OTRS newbie
Posts: 30
Joined: 06 Sep 2013, 11:13
OTRS Version?: 3.2.9

Re: Probleme mit SSO Apache

Post by insideAC »

Hallo nochmal,

ich würde wirklich gerne das SSO zum Laufen bringen.
Ich zweifele mittlerweile daran, dass die Methode über Perl-Modul gut ist.

Wie habt Ihr denn Euer SSO gegen AD implementiert?

Vielen Dank!

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