Changing IP address of websphere installation

hostnameipmigrationwebsphere

i am not a websphere expert.
we are migrating our websphere application to a different server (which has a different IP and hostname). we use WAS network deployment v 6.1. I came across some articles which describes the steps to change the hostname of the WAS installation but does not say anything about changing IP addresses.

http://pic.dhe.ibm.com/infocenter/wasinfo/v8r0/index.jsp?topic=%2Fcom.ibm.websphere.nd.doc%2Finfo%2Fae%2Fae%2Ftagt_hostname.html

There are few files such as plugin-cfg.xml file where I see the server IP is hard-coded.
Is it like, after the new hosts file is placed in the server, changing the hostname through these steps and it will automatically update the IP addresses?

please advice.

Best Answer

You can restore configuration of WAS to new server instead of changing hostname and IP. Commands are: *backupConfig.sh* and *restoreConfig.sh*.

Firstly you can install WAS 6.1 and create cells, profiles, nodes and servers. Do not configure them. Then restore your backup which is taken from old server. All the configurations and applications will be installed.

But the key point is that, all the *profile/cell/node/server* names must be the same..

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Difference Between IP Address 0.0.0.0 and 127.0.0.1

The only thing is that you're not saying "all addresses should have access" -- that's done in your firewall(s) and/or the server software and/or other security layers like tcpwrappers.

0.0.0.0, in this context, means "all IP addresses on the local machine" (in fact probably, "all IPv4 addresses on the local machine"). So, if your webserver machine has two IP addresses, 192.168.1.1 and 10.1.2.1, and you allow a webserver daemon like apache to listen on 0.0.0.0, it will be reachable at both of those IP addresses. But only to what can contact those IP addresses and the web port(s).

Note that, in a different context (routing) 0.0.0.0 usually means the default route (the route to "the rest of" the internet, aside from routes in your local network etc.).

MySQL Configuration – How to Bind MySQL Server to Multiple IP Addresses

No, there isn't (I just checked 1 hour ago). You can comment the bind-address in my.cnf:

Note: « 1 hour ago » is now more than 10 years ago.

#skip-networking
#bind-address                   = 127.0.0.1

If you want only 2 IPs, you will then have to use a firewall.

For MySql version 8.0.13 and above, you can specify a list of comma-separated IP addresses.

bind-address = 10.0.0.1,10.0.1.1,10.0.2.1

Relevant MySql documentation.

Remember to restart your MySQL instance after changing the config file.

Best Answer

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Difference Between IP Address 0.0.0.0 and 127.0.0.1

MySQL Configuration – How to Bind MySQL Server to Multiple IP Addresses

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