one server with two ip address

[Eric Crist]

On Jul 6, 2007, at 7:21 PMJul 6, 2007, Daniel A. A. wrote:

> Ray wrote:
>> Hello all,
>> I have a production server with two network interfaces.  The  
>> primary interface is up and running. (DHCP from the local Telco)  
>> The second interface is installed, but not yet active. It will run  
>> on a local network only. Can I do something as simple as ifconfig   
>> nfe1 192.168.0.100
>> to give myself access to the internal network? As this is a  
>> production server, I don't want to just play with it too much.   
>> Thanks,
>> Ray
> You'd have to
> ifconfig nfe1 192.168.0.100 netmask ###.###.###.###
> But don't worry - If you mistype, or make some other error (Like  
> forgetting to specify the gateway for the connection), nothing  
> happens. You'll just get an error printed to stdout and the netif  
> will remain untouched.
>

You can shorten that command using CIDR notation as well:

ifconfig nfe1 192.168.0.100/24

Eric Crist