Fix lỗi sau khi clone máy ảo CentOS bị ăn card eth1

Sau khi bạn clone máy ảo CentOS (Redhat…) gặp hiện tượng card mạng chuyển sang eth1, hoặc không vào được mạng luôn. Cách fix như sau:

Mở file:

sudo nano /etc/udev/rules.d/70-persistent-net.rules

Nội dung file như sau:

# This file was automatically generated by the /lib/udev/write_net_rules # program, run by the persistent-net-generator.rules rules file. # # You can modify it, as long as you keep each rule on a single # line, and change only the value of the NAME= key. # net device () (custom name provided by external tool) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<strong><span style="color: #008000;">54:52:00:ff:ff:dd</span></strong>", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<span style="color: #ff0000;"><strong>54:52:00:ff:ff:de</strong></span>", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

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# This file was automatically generated by the /lib/udev/write_net_rules # program, run by the persistent-net-generator.rules rules file. # # You can modify it, as long as you keep each rule on a single # line, and change only the value of the NAME= key.   # net device () (custom name provided by external tool) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<strong><span style="color: #008000;">54:52:00:ff:ff:dd</span></strong>", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<span style="color: #ff0000;"><strong>54:52:00:ff:ff:de</strong></span>", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"