Creating a Virtual Interface
You must have two Ethernet connections, identified by the "eth0" label. To add a virtual interface on a Linux server, with a second IP address, to the existing Ethernet interface, use the following command:
ifconfig eth0:0 111.222.333.444
where
111.222.333.444 is the new IP address for the virtual interface.
You must add a file to the network scripts to recreate the virtual interface when the server is rebooted. If the IP address assigned to the eth0 interface is static, make a copy of the ifcfg-eth0 file in /etc/sysconfig/network-scripts and name it ifcfg-eth0:0. Update the IP address in ifcfg-eth0:0 to be the new IP address assigned to the virtual interface.
If the IP address in the eth0 interface is dynamically assigned, as indicated by the line "BOOTPROTO=dhcp" in the ifcfg-eth0 file, create a file named ifcfg-eth0:0 with the following lines:
DEVICE=eth0:0
IPADDR=111.222.333.444
Finally, update your DNS server so that the new IP address is mapped to data collection URL (i.e., aptareagent.company.com).