[CentOS] Cannot set alias IP address

From: Nikolaos Milas <nmilas at noa.gr>

> Following the above error, I thought that I should change config as 
> follows:
> 
> DEVICE="eth0:1"
> NM_CONTROLLED="yes"
> ONBOOT="yes"
> ONPARENT="yes"
> BOOTPROTO=none
> IPADDR=xxx.xxx.xxx.131
> NETMASK=255.255.255.248
> 
> Now, I get the error (in /var/log/messages):
> 
> Jun 18 15:31:30 vpnserver NetworkManager[1125]:    ifcfg-rh: updating 
> /etc/sysconfig/network-scripts/ifcfg-eth0:1
> Jun 18 15:31:31 vpnserver NetworkManager[1125]:    ifcfg-rh: updating 
> /etc/sysconfig/network-scripts/ifcfg-eth0:1
> Jun 18 15:31:37 vpnserver NetworkManager[1125]: <info> (eth0): device 
> state change: 8 -> 3 (reason 39)
> Jun 18 15:31:37 vpnserver NetworkManager[1125]: <info> (eth0): 
> deactivating device (reason: 39).
> 
> Please advise.

Do you really need NetworkManager...?

JD