Hello all.

Thanks in advance for the help found on this forum. Here is my situation.

Zimbra is installed on a FC4 system. I have the base FC4 Apache running on port 80. This serves a small website. I want the users to hit Zimbra using mod_jk through Apache. Thus, I installed FC4 and changed the default http port to 88 and https to 8889. I've setup mod_jk, and added the connector line to the server.xml.in (tomcat conf directory under /opt/zimbra). The appropiate changes have been made to the base Apache (running on port 80) httpd.conf file. I have a virtual host setup in Apache called mail.mydomain.com. This sub-domain/virtual host forwards all traffic to the ajp13 connector eg:
JkMount /zimbra/mail ajp13
JkMount /zimbra/auth/ ajp13
JkMount /zimbra/js/*.jgz ajp13
JkMount /zimbra/ ajp13
JkMount /service/* ajp13

I can hit mail.mydomain.com/zimbra/ from outside the firewall. It correctly brings up the Zimbra login screen. Great! Except, when I login I get this error:
An unknown application error has occurred. Please correct any errors and retry. If the problem persists, please contact your System Aministrator. (service.FAILURE)

Using the debug tool (http://mail.mydomain.com/zimbra/?debug=1) I see this error:
code: "service.FAILURE",
detail: "system failure: Request not allowed on port 80",
method: "ZmCsfeCommand.prototype.invoke",
msg: "Csfe service error"

com.zimbra.cs.service.ServiceException: system failure: Request not allowed on port 80 at com.zimbra.cs.service.ServiceException.FAILURE(Ser viceException.java:131) at com.zimbra.cs.servlet.ZimbraServlet.service(Zimbra Servlet.java:142) at javax.servlet.http.HttpServlet.service(HttpServlet .java:802) at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:214) at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:107) at org.apache.catalina.valves.AccessLogValve.invoke(A ccessLogValve.java:526) at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:148) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyo teHandler.java:306) at org.apache.jk.common.HandlerRequest.invoke(Handler Request.java:385) at org.apache.jk.common.ChannelSocket.invoke(ChannelS ocket.java:745) at org.apache.jk.common.ChannelSocket.processConnecti on(ChannelSocket.java:675) at org.apache.jk.common.SocketConnection.runIt(Channe lSocket.java:868) at org.apache.tomcat.util.threads.ThreadPool$ControlR unnable.run(ThreadPool.java:684) at java.lang.Thread.run(Thread.java:595)

Which tells me it is still looking for some service on port 80. I assume it's looking for the soap service...

zmcontrol status shows everything is running ok.

running zmprov GetConfig zimbraMailPort shows:
zimbraMailPort: 80 <-- which is probably the problem.

Using this forum I saw to use zmprov to change the zimbraMailPort. I did that and it never changes.

PLEASE HELP!!! What do I need to configure to make Zimbra login work???

Two more things -- going directly to Tomcat on port 88 I can login and work just fine; I have uninstalled and reinstalled just for kicks. No dice.