6.5.1

Table 3‑3. Ports Required for Communication Between Components (Continued)
Port Protocol Description Required for
Used for Node-to-Node
Communication
11711 TCP vCenter Single Sign-On LDAP
For backward compatibility with vSphere
5.5 only.
Windows installations
and appliance
deployments of
Platform Services
Controller
During upgrade from
vSphere 5.5 only.
vCenter Single Sign-On
5.5 to
Platform Services
Controller 6.5
11712 TCP vCenter Single Sign-On LDAPS
For backward compatibility with vSphere
5.5 only.
Windows installations
and appliance
deployments of
Platform Services
Controller
During upgrade from
vSphere 5.5 only.
vCenter Single Sign-On
5.5 to
Platform Services
Controller 6.5
To configure the vCenter Server system to use a different port to receive vSphere Web Client data, see
the vCenter Server and Host Management documentation.
For more information about firewall configuration, see the vSphere Security documentation.
DNS Requirements for the vCenter Server Appliance and
Platform Services Controller Appliance
When you deploy the vCenter Server Appliance or Platform Services Controller appliance, similar to any
network server, you can assign a fixed IP address and an FQDN that is resolvable by a DNS server so
that clients can reliably access the service.
When you deploy the vCenter Server Appliance or Platform Services Controller appliance with a static IP
address, you ensure that in case of system restart, the IP address of the appliance remains the same.
Before you deploy the vCenter Server Appliance or Platform Services Controller appliance with a static IP
address, you must verify that this IP address has a valid internal domain name system (DNS) registration.
When you deploy the vCenter Server Appliance, the installation of the Web server component that
supports the vSphere Web Client fails if the installer cannot look up the fully qualified domain name
(FQDN) for the appliance from its IP address. Reverse lookup is implemented using PTR records.
If you plan to use an FQDN for the appliance system name, you must verify that the FQDN is resolvable
by a DNS server.
You can use the nslookup command to verify that the DNS reverse lookup service returns an FQDN
when queried with the IP address and to verify that the FQDN is resolvable.
nslookup -nosearch -nodefname FQDN_or_IP_address
If you use DHCP instead of a static IP address for the vCenter Server Appliance or
Platform Services Controller appliance, verify that the appliance name is updated in the domain name
service (DNS). If you can ping the appliance name, the name is updated in DNS.
vSphere Installation and Setup
VMware, Inc. 229