/etc/host & /etc/hostname files and dual NIC server

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I have a rhel 7.0 system with two NICs. NIC-1 is "bound" to my public static IP addresss. The other NIC (NIC-0) is "bound" to an 192.168.xxx.xxx internal LAN address.
I have the Firewalld service enabled with the External Zone "bound" to NIC-1, and the Internal Zone "bound" to NIC-0.
NAT and IP masquerading is "turned on".
I have also defined two domains an external one (ids4zos.net) and an internal domain (richkids.net)
In the /etc/host file are the following entries:
69.54.xxx.xxx redriver01 redriver01.ids4zos.net
192.168.10.6 redriver00 redriver00.richkids.net
127.0.0.1 localhost localhost.localdomain

In the /etc/hostname ... :
69.54.xxx.xxx redriver01.ids4zos.net redriver01
192.168.10.6 redriver00.richkids.net redriver00

However I'm wondering if this is defined correctly
There are no apparent problems.
However if anyone has any suggestions an/or ideas on how better to config this environment I would be most appreciative.

Best Regards

Guy

2U

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