So I've got a multiserver setup up and running under Ubuntu 8.04 x64 (Community Build) version zcs-5.0.7_GA_2450.UBUNTU8_64.FRANKLIN. At the moment its 3 servers (MTA, LDAP and a mailstore) I plan to add another doing proxying, but haven't set that up.

When I log into the admin interface I get the following error:
Server error encountered Message:
error while proxying request to target server Connection refused Error code: service.PROXY_ERROR Method: GetServiceStatusRequest Details:soap:Receiver
In mailbox.log that seems to be an error connecting to parachute (my MTA). Should I be running zimbra-apache on that box? Or is might there be a config value somewhere that is looking to parachute when it shouldn't?

Relevant lines from /opt/zimbra/log/mailbox.log I see:
2008-08-14 17:52:43,822 INFO [btpool0-10] [name=admin@psych.columbia.edu;mid=2;ip=75.223.42.6 ;ua=ZimbraWebClient - FF3.0 (Win);] soap - GetServiceStatusRequest
2008-08-14 17:52:43,833 INFO [btpool0-10] [name=admin@psych.columbia.edu;mid=2;ip=75.223.42.6 ;ua=ZimbraWebClient - FF3.0 (Win);] SoapEngine - handler exception
com.zimbra.common.service.ServiceException: error while proxying request to target server Connection refused
ExceptionId:btpool0-10:1218750763833:19f2a0ee88f430b8
Code:service.PROXY_ERROR Argurl, STR, "https://parachute.psych.columbia.edu:7071/service/admin/soap/GetServiceStatusRequest")
at com.zimbra.common.service.ServiceException.PROXY_E RROR(ServiceException.java:303)
at com.zimbra.soap.ProxyTarget.dispatch(ProxyTarget.j ava:109)
at com.zimbra.soap.DocumentHandler.proxyRequest(Docum entHandler.java:428)
at com.zimbra.cs.service.admin.GetServiceStatus.handl e(GetServiceStatus.java:56)
at com.zimbra.soap.SoapEngine.dispatchRequest(SoapEng ine.java:410)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:267)
at com.zimbra.soap.SoapEngine.dispatch(SoapEngine.jav a:159)
at com.zimbra.soap.SoapServlet.doPost(SoapServlet.jav a:266)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:727)
at com.zimbra.cs.servlet.ZimbraServlet.service(Zimbra Servlet.java:188)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:820)
at org.mortbay.jetty.servlet.ServletHolder.handle(Ser vletHolder.java:487)
at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1093)
at org.mortbay.servlet.UserAgentFilter.doFilter(UserA gentFilter.java:81)
at org.mortbay.servlet.GzipFilter.doFilter(GzipFilter .java:132)
at org.mortbay.jetty.servlet.ServletHandler$CachedCha in.doFilter(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle(Se rvletHandler.java:360)
at org.mortbay.jetty.security.SecurityHandler.handle( SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(Se ssionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle(Co ntextHandler.java:716)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebA ppContext.java:406)
at org.mortbay.jetty.handler.ContextHandlerCollection .handle(ContextHandlerCollection.java:211)
at org.mortbay.jetty.handler.HandlerCollection.handle (HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:139)
at org.mortbay.jetty.handler.rewrite.RewriteHandler.h andle(RewriteHandler.java:315)
at org.mortbay.jetty.handler.HandlerWrapper.handle(Ha ndlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(Htt pConnection.java:506)
at org.mortbay.jetty.HttpConnection$RequestHandler.co ntent(HttpConnection.java:844)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser. java:644)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpPa rser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnec tion.java:381)
at org.mortbay.io.nio.SelectChannelEndPoint.run(Selec tChannelEndPoint.java:396)
at org.mortbay.thread.BoundedThreadPool$PoolThread.ru n(BoundedThreadPool.java:442)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl .java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSoc ketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.j ava:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.j ava:366)
at java.net.Socket.connect(Socket.java:520)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.connect (SSLSocketImpl.java:545)
at com.sun.net.ssl.internal.ssl.SSLSocketImpl.(SSLSocketImpl.java:389)
at com.sun.net.ssl.internal.ssl.SSLSocketFactoryImpl. createSocket(SSLSocketFactoryImpl.java:121)
at com.zimbra.common.util.EasySSLProtocolSocketFactor y.createSocket(EasySSLProtocolSocketFactory.java:1 24)
at com.zimbra.common.util.EasySSLProtocolSocketFactor y.createSocket(EasySSLProtocolSocketFactory.java:1 65)
at org.apache.commons.httpclient.HttpConnection.open( HttpConnection.java:706)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteWithRetry(HttpMethodDirector.java:386)
at org.apache.commons.httpclient.HttpMethodDirector.e xecuteMethod(HttpMethodDirector.java:170)
at org.apache.commons.httpclient.HttpClient.executeMe thod(HttpClient.java:396)
at org.apache.commons.httpclient.HttpClient.executeMe thod(HttpClient.java:324)
at com.zimbra.common.soap.SoapHttpTransport.invoke(So apHttpTransport.java:234)
at com.zimbra.common.soap.SoapTransport.invoke(SoapTr ansport.java:297)
at com.zimbra.common.soap.SoapTransport.invokeRaw(Soa pTransport.java:272)
at com.zimbra.soap.ProxyTarget.dispatch(ProxyTarget.j ava:106)
... 32 more