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Former Member
Oct 04, 2011 at 06:45 PM

Hostname, Virtual Names and DNS.

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We're working on a deployment of SAP (many modules). I'm looking at solidifying a strategy for hostnames, virtual names and DNS naming.

We'll be deploying on Linux (SUSE) or AIX (platform hasn't been decided), just in case it makes a difference.

What I'm trying to gather is, what reverse entries are needed, what should they resolve to, do they have to resolve correctly only during the installation etc. This will help me understand how many IPs we'll require per instance of each module.

For instance:

(Physical Server Hostname)

RK01ROW0103.domain.com 10.10.10.10

Virtual Host Names

ERPDEVAPP.domain.com (can this be a cname to RK01ROW0103 or will the reverse return of RK01ROW0103 break this? I know it does during installation)

If the same host houses both DB and APP we'd have:

ERPDEVDBS.domain.com (can this be a cname to RK01ROW0103 or will the reverse return of RK01ROW0103 break this? I know it does during installation)

What I'd like to understand is, does the ERPDEVAPP.domain.app have to be a virtual alias within the host that'll have a different IP so that the reverse lookup was correct?

Can someone that's on linux provide a non company confidential output of what their /etc/hosts and dns strategies are? I'm really trying to grasp this prior to entering into our development lifecycle.

Thank you for the help.