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Finding Oracle VM Manager Core Management Port After OVM Manager Installation

Recently I was working on integration of OVM Manager with Oracle EM Cloud Control 12cR4 and I had to enter the "Oracle VM Manager URL" a.k.a. as "Core management port" which is reported at the end of OVM Manager installation. The default value for this port is 54321. As I was not in position to get this post-installation report because the installation was performed by another company, I had to find out the right port. The definition should be entered in the form: tcp://:
.
EM Cloud Control and OVM Manager Integration Screen
OVM Manager Installation report sample

One of the the first ideas was to check local firewall configuration and see if there is anything for port 54321.

# iptables -L | grep 5432
ACCEPT     tcp  --  anywhere  anywhere   state NEW tcp dpt:54322

Search showed opened port 54322 which could also be one of the possibilities.
Searching with netstat revealed no acctivity on port 54322

# netstat -vatn | grep 54322

However, a lot of rows was returned when searching for port 54321:

# netstat -vatn | grep 54321
tcp        0      0 ::ffff:127.0.0.1:54321      :::*                        LISTEN
tcp        0      0 ::ffff:127.0.0.1:36797      ::ffff:127.0.0.1:54321      ESTABLISHED
tcp        0      0 ::ffff:127.0.0.1:51828      ::ffff:127.0.0.1:54321      ESTABLISHED
tcp        0      0 ::ffff:127.0.0.1:53096      ::ffff:127.0.0.1:54321      ESTABLISHED
tcp        0      0 ::ffff:127.0.0.1:55461      ::ffff:127.0.0.1:54321      ESTABLISHED
tcp        0      0 ::ffff:127.0.0.1:53017      ::ffff:127.0.0.1:54321      ESTABLISHED

But I was still not 100% sure, if the iptables showed the right port. So further digging through the documentation revealed the right port. The definition of the "Core management port"  is hidden in .config file under the name COREPORT in OVM Manager home directory /u01/app/oracle/ovm-manager-3/.config

The contents of this file in my case was:

# cat  /u01/app/oracle/ovm-manager-3/.config

DBTYPE=MySQL
DBHOST=localhost
SID=ovs
LSNR=49500
OVSSCHEMA=ovs
APEX=8080
WLSADMIN=weblogic
OVSADMIN=admin
COREPORT=54321
UUID=0004fb000001000075e54bae74172d82
BUILDID=3.3.1.1065

The explanation for the configuration items can be found in chapter "5.1 Backing up and Restoring Oracle VM Manager"  and obviously in my case the port used was actually the default one 54321.
The .config file should be part of the backup.

Hope this post will shorten search time for this kind of information to my readers.