if one nic card goes down my website can be accessible from another nic card?

Hello kindest peoples,

i have 2 physical nic card.
for example: (Private IP)
one having ip 1.1.1.1
another having ip 2.2.2.2

now, how to configure cwp, if one nic card goes down my website can be accessible from another nic card?

please guide me step by step. i was searching for this for 7 days and unable to find any solution.

what i have done, i have configured my router to forward all traffic to both of these IPs. but if 1.1.1.1 goes down my websites also goes down. 2.2.2.2 ip not working.

in cwp > in IP manager both IPs are showing. i can access cwp admin panel locally from both ip. but from internet only working IP is 1.1.1.1.

in CWP info only one Server IP showing and it is 1.1.1.1 | cwp.example.com . 2nd ip not showing.

You can only forward NAT to one IP, not 2 at the same time.

There is no step by step guide, this is basic knowledge for any sys admin or network admin.
Sounds like you might need to hire one, or have a managed server or VPS.

You can setup network IP's using nmtui.
https://www.tecmint.com/nmtui-configure-network-connection/

But Again, you can't use NAT to point ports to 2 different IP's at the same time.

https://www.thegeekdiary.com/centos-rhel-7-how-to-configure-network-bonding-or-nic-teaming/