What is the impact on RSA IGL server IP change?

[MekalaSubramani]

Have a full blown latest RSA IGL 7.2 P01 working server. This server is getting disconnected now & then, Network couldn't solve the issue. All servers on that sub net is having this issue. They want to change the sub net of this server.

1. Is it possible to have #IPchange & take it up from the same state?
2. Do we have any property files where IP is getting saved that needs to be modified?

[MHelmy · Accepted solution]

The IP address change isn't a huge problem. Assuming that the network team setup all OS related settings for the IP address, subnet and default gateway … you only need to make ensure the following:

1. Update the entries in /etc/hosts to now reflect the correct IP address.
2. Ensure your DNS server now has updated entries to reflect the new IP address for the server's hostname.

If you need to change the hostname thought, make sure you use the modifyhostname.sh script. Any attempts to modify the hostname without this script will break the database and application server installation.

[MekalaSubramani]

Thanks for clarifying both IP & Server Name change related info. We are doing DNS change alone.

Thanks & Stay Safe!

Mekala

[RakheeTarar]

Including network interface files that is,  ifcfg-bond0 will need to update with new IP 

( if you are not using bonding then ifcfg-etho ) and /etc/resolv.conf for dns .
then restart network. (service network restart)

[MekalaSubramani]

What is  ifcfg-bond0? Do we have any KB article for this?

[MekalaSubramani]

With version 6.9.1 cloning & changing of IP didn't work for me... Is the IP change been tested in any of RSA IGL 7+ versions?

[PradeepKadambar]

Since you have a software bundle with local DB, the IP change will break the Oracle database. You need to follow these steps from the Appendix section of the https://community.rsa.com/docs/DOC-110895 

[MHelmy]

Pradeep the modifynetworksettings.sh script only applies to the RSA Appliance. The script assumes the default network interface names and configuration files (ifcfg-eth0, ifcfg-bond0) that exist on the RSA Appliance settings and rarely exist on any non-RSA OS.

Changing the only IP address without the script will not break the oracle database as long as DNS and the hosts file are modified accordingly.

Changing the hostname must be done using the modifyhostname.sh if you have a local database, otherwise it will definitely break the Oracle database.

[MHelmy]

This is the default network interface configuration file that comes with the RSA Appliance or OVA installation. If you installed IGL on your own OS, then this file (probably) may not exist in your environment.

Refer to your OS admins to change the IP address, then just make sure the hosts file and DNS records are modified accordingly.

[MekalaSubramani]

As Pradeep suggested for bundled up version, didn't want to spend much time on debugging Oracle issue. Went with new install.