We're getting ready to install several SAP applications (ERP, Portal, SolMan, etc.) on Windows 2012 R2/SQL Server 2012 SP1/VMWare environment. We are going through the prequisite checks. We would like to install the systems on virtual hosts as mentioned in SAP Notes 962955, 1282975, and 1564275. We are using DNS for hostname resolution for all of our systems.
We have followed the steps in the notes including creating the DNS A-record and the PTR record pointing to the reverse lookup zone file for the virtual hostname mentioned in SAP Note 129997. However, it seems after a short period of time that the virtual hostname in PTR record is overwritten with the physical hostname. Thus, the niping test is failing as is is coming back with the physical hostname. Nslookup looks OK, though. Here is the niping and nslookup commands:
C:\>niping -v -H <virtual_hostname>
Hostname/Nodeaddr verification:
===============================
Hostname of local computer: <local_pc_hostname> (NiMyHostName)
Lookup of hostname: <local_pc_hostname> (NiHostToAddr)
--> IP-Addr.: <local_pc_ip_address>
Lookup of IP-Addr.: <local_pc_ip_address> (NiAddrToHost)
--> Hostname: <local_pc_hostname>.corporation.com
Lookup of hostname: <virtual_hostname> (NiHostToAddr)
--> IP-Addr.: <virtual_server_IP_Address>
Lookup of IP-Addr.: <virtual_server_IP_Address> (NiAddrToHost)
--> Hostname: <physical_hostname>.corporation.com
We expect to see <virtual_hostname>.corporation.com in the last line instead of <physical_hostname>.corporation.com per the SAP notes I mentioned.
Here is nslookup:
C:\>nslookup <virtual_hostname>
Server: <dns_server_hostname>.corporation.com
Address: <dns_server_ip_address>
Name: <virtual_hostname>.corporation.com
Address: <virtual_server_ip_address>
Has anyone ran into this issue? Please advise if there are some checks we can run to make sure things look OK.
Thank you!
Avi