What is the best to have 2 internet connectinons to one linux box on 2 different ethernet interfaces and if the web can not be accessed over one nic for Linux to then use the other nic for Internet access?

 

Basically nic A is for intrnal network and to access the Internet

nic B is only to access the internet which should be used for Internet access as the primary.

 

Basically I would like to configure the Linux box to have redundant Internet access.

 

 

Jim