Hi,
I would like to do this architecture:
- a reverse proxy (based on apache 2.2.10-2.24.5) that do client
authentication with x509 certificate. The user access is validated by an
ldap server.
- a web server (based on apache 2.2.10-2.24.5) that run mod_dav with
specific user access filtering
I setup the reverse proxy with this configuration :
<Proxy balancer://webdavcluster>
BalancerMember http://192.168.129.18
BalancerMember http://192.168.129.19
</Proxy>
<VirtualHost _default_:443>
ErrorLog /var/log/apache2/error_log
TransferLog /var/log/apache2/access_log
CustomLog /var/log/apache2/ssl_request_log ssl_combined
SSLEngine On
SSLProxyEngine On
SSLCipherSuite
ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL
SSLCertificateFile /etc/apache2/ssl.crt/server.crt
SSLCertificateKeyFile /etc/apache2/ssl.key/server.key
SSLCACertificateFile
/etc/apache2/ssl.crt/client-accepted-ca-chain.crt
SSLVerifyClient require
SSLVerifyDepth 3
SSLOptions +FakeBasicAuth +ExportCertData
SetEnvIf User-Agent ".*MSIE.*" \
nokeepalive ssl-unclean-shutdown \
downgrade-1.0 force-response-1.0
ServerName webdav
ServerAlias webdav
<Location />
AuthType Basic
AuthName "Intranet"
AuthBasicProvider ldap
AuthzLDAPAuthoritative off
AuthLDAPURL
"ldap://192.168.129.19:389/ou=People,dc=XXX,dc=X,dc=X,dc=X?uid"
AuthLDAPBindDN "cn=X,ou=Technical,dc=X,dc=X,dc=X,dc=X"
AuthLDAPBindPassword X
Require valid-user
</location>
ProxyPass /balancer-manager !
ProxyPass / balancer://webdavcluster/
ProxyPassReverse / balancer://webdavcluster/
</VirtualHost>
On the web server, I configure :
<Directory "/srv/www/htdocs">
AllowOverride None
Order allow,deny
Allow from all
Options Indexes FollowSymLinks
AuthName "WEBDav server"
AuthType Basic
AuthBasicProvider ldap
AuthzLDAPAuthoritative on
AuthLDAPURL
"ldap://192.168.129.19:389/ou=People,dc=XXX,dc=X,dc=X,dc=X?uid"
AuthLDAPBindDN "cn=X,ou=Technical,dc=X,dc=X,dc=X,dc=X"
AuthLDAPBindPassword X
require valid-user
DAV On
</Directory>
On the webserver logs, I found this message : [Tue Feb 14 14:00:42 2012]
[error] [client 192.168.129.17] Encountered FakeBasicAuth spoof:
/XXXXXXXX
It looks like error due to FakeBasicAuth option used on the reverse
proxy but when I removed it on the reverse proxy, the reverse proxy
doesn't authenticate user with the ldap.
So my question is how to do user validation on the web server based on
information send by the reverse proxy or how to filter access to
specific directory ?
Thanks for your help
Francois-Xavier THORET
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