2.5

Table Of Contents
ACE Management Server Administrator’s Manual
22 VMware, Inc.
ThestoreorcollectionofcertificatesthatisdownloadedwhenanACEenabledvirtual
machineconnectstoaserverisincludedineachACEpackagethatyoucreatewiththat
virtualmachine.ItissavedintheACE Resourcesdirectory.Whenyoudeployandrun
anACEinstanceofthisACEenabled
virtualmachine,theVMwarePlayerapplication
usesthecertificatesincludedinthepackagetoverifyconnectionsmadetotheACE
ManagementServer.ItverifiesthatthecertificatesthatareintheACEpackagematch
thosethattheserverprovides.Iftheydonotmatchexactly,VMware Playerdisplaysan
errormessage
anddoesnotruntheinstance.
VMwarePlayercheckstheintegrityofthecertificatestoreincludedinthepackage
everytimeitcommunicateswiththeserver.VMwarePlayerdoesnottrustany
certificatesstoredonthehostmachineonwhichitisrunning.Instead,itreliesona
completecertificationchain
thatisincludedintheACEpackage.Theuseofselfsigned
certificatesisadequateformostsecurityneeds.
If,however,yourenterpriserequirestheuseofacertificatesignedbyacertificate
authority(internalorcommercial),youcansetupthat typeofkeycertificatepairfor
theACEpackages
touse.Acertificateauthority,orCA,isanentitythatissuesandsigns
publickeycertificates,typicallyforafee.
Accessing ACE Management Server from Outside the
Corporate Firewall
AllclientrequeststoACEManagementServerareHTTPStrafficonport443.
This meansthatanysolutionusingaproxytosecureHTTPStrafficintoyourcorporate
serverscanbeusedtoproxyACEManagementServertraffic.
BecauseofthenumberofdataconnectionsthattheACEManagementServermust
make
onthebackend(LDAP,DNS,ODBC,Kerberos),VMwarerecommendsusingan
HTTPSproxyintheDMZ.ThisproxycanrelayACEManagementServertraffictothe
actualACEManagementServerinsidethecorporatenetwork.
Figure 2-2. Recommended Deployment for External Access
HTTPS
proxy server
external client
ODBC
NETBIOS (port 137)
DNS
KRB5 (port 88)
LDAP (port 389)
HTTPS traffic
(443)
HTTPS traffic
(443)
external
firewall
AMS server
internal
firewall