I'm facing a weird problem with my Apache reverse proxy setup for a Sharepoint server.
When I log into the Sharepoint via proxy and then someone else opens the Sharepoint via proxy, he is already logged in with my account. Do you have an idea what might be wrong?
This is the Apache config:
<VirtualHost *:443>
SSLEngine On
SSLProxyEngine On
SSLCertificateFile /etc/apache2/ssl/sharepoint.pem
ProxyPreserveHost Off
ProxyRequests Off
ProxyHTMLExtended On
ProxyHTMLLogVerbose On
LogLevel Debug
ProxyHTMLURLMap https://sharepoint.portal.de/ /
SetOutputFilter INFLATE;proxy-html;DEFLATE
Header edit Location ^https(\:\/\/sharepoint.portal.de)(.*)$ https://192.168.120.19$2
ProxyPass / https://sharepoint.portal.de:443/
ProxyPassReverse / https://sharepoint.portal.de:443/
</VirtualHost>
Best Answer
Here is what I try for the 4 last hours:
The only reasonable explanation I can think of is that the sharepoint server has keepalive enabled and serveral apache clients are proxied through the same "keepalived" connexion between apache and sharepoint.
If this is the case the following 2 lines ( to be inserted in your vhost configuration ) showld solve the issue:
Alternatively you could also disable keepalives on the sharepoint server. Disabling / Enabling keepalive on apache should make no difference.
Edit: This will not work with NTLM Authentication because NTLM is connexion oriented and requires the keep-alive. Actually the question is already answered here: Setting up mod_proxy to pass http authentication to server
This SF post gives a working configuration, with keep-alive enabled.