I'm trying to remove eth0.x and keep eth0. While ifconfig lists both eth0.1 and eth0.500, I didn't find their configuration files /etc/sysconfig/network-scripts/ifcfg-eth0.x.I tried ifconfig eth0.1 down and it worked.  But after restarting the network, both eth0.1 and eth0.500 came back.Is there a way to permanently remove these two interfaces?
How to permanently remove eth0.x in CentOS
networking;network interface;ethernet;ifconfig