Now I get the following thing if I access my xwiki on my server with "MyIP:8180/xwiki" from my client (that does mean Apache is working, right?). The same message appears in terminal browser by "lynx http://localhost:8180/xwiki". Has anybody an idea what this causes? HTTP Status 500 - type Exception report message description The server encountered an internal error () that prevented it from fulfilling this request. exception javax.servlet.ServletException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 0 in 3: Exception while hibernate execute Wrapped Exception: Hibernate Dialect must be explicitly set org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) root cause com.xpn.xwiki.XWikiException: Error number 3 in 0: Could not initialize main XWiki context Wrapped Exception: Error number 0 in 3: Exception while hibernate execute Wrapped Exception: Hibernate Dialect must be explicitly set com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:250) com.xpn.xwiki.XWiki.getXWiki(XWiki.java:439) com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:94) org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) javax.servlet.http.HttpServlet.service(HttpServlet.java:689) javax.servlet.http.HttpServlet.service(HttpServlet.java:802) com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) -- View this message in context: http://www.nabble.com/Problem-with-mod_proxy-tp15031584p15045570.html Sent from the XWiki- Users mailing list archive at Nabble.com.