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udev 70-persistent-net.rules lines removed

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0

I administer an EC2 instance running Ubuntu 18.04 for a client's app. The app expects network interface names that begin with enp. EC2 instances have network interfaces named eth0, eth1, etc.

To rename the interfaces at launch I added rules to /etc/udev/rules.d/70-persistent-net.rules (MAC addresses obfuscated).

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="cc:cc:cc:cc:cc:cc", NAME="enp2s0"



SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="ee:ee:ee:ee:ee:ee", NAME="enp26s0f0"



SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="dd:dd:dd:dd:dd:dd", NAME="enp26s0f1"

This worked fine and the interfaces have the expected names, but when I cat /etc/udev/rules.d/70-persistent-net.rules only one rule remains.

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="cc:cc:cc:cc:cc:cc", NAME="enp2s0"

My question is how and why were the other two rules removed? And how can I prevent this from happening so that the interfaces are consistently renamed after each reboot?

amazon-ec2 ubuntu-18.04 udev

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asked 2 mins ago

bmccordbmccord

11

add a comment | 

0

I administer an EC2 instance running Ubuntu 18.04 for a client's app. The app expects network interface names that begin with enp. EC2 instances have network interfaces named eth0, eth1, etc.

To rename the interfaces at launch I added rules to /etc/udev/rules.d/70-persistent-net.rules (MAC addresses obfuscated).

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="cc:cc:cc:cc:cc:cc", NAME="enp2s0"



SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="ee:ee:ee:ee:ee:ee", NAME="enp26s0f0"



SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="dd:dd:dd:dd:dd:dd", NAME="enp26s0f1"

This worked fine and the interfaces have the expected names, but when I cat /etc/udev/rules.d/70-persistent-net.rules only one rule remains.

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="cc:cc:cc:cc:cc:cc", NAME="enp2s0"

My question is how and why were the other two rules removed? And how can I prevent this from happening so that the interfaces are consistently renamed after each reboot?

amazon-ec2 ubuntu-18.04 udev

share

asked 2 mins ago

bmccordbmccord

11

add a comment | 

I administer an EC2 instance running Ubuntu 18.04 for a client's app. The app expects network interface names that begin with enp. EC2 instances have network interfaces named eth0, eth1, etc.

To rename the interfaces at launch I added rules to /etc/udev/rules.d/70-persistent-net.rules (MAC addresses obfuscated).

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="cc:cc:cc:cc:cc:cc", NAME="enp2s0"



SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="ee:ee:ee:ee:ee:ee", NAME="enp26s0f0"



SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="dd:dd:dd:dd:dd:dd", NAME="enp26s0f1"

This worked fine and the interfaces have the expected names, but when I cat /etc/udev/rules.d/70-persistent-net.rules only one rule remains.

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="cc:cc:cc:cc:cc:cc", NAME="enp2s0"

My question is how and why were the other two rules removed? And how can I prevent this from happening so that the interfaces are consistently renamed after each reboot?

amazon-ec2 ubuntu-18.04 udev

share

asked 2 mins ago

bmccordbmccord

11

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="cc:cc:cc:cc:cc:cc", NAME="enp2s0"



SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="ee:ee:ee:ee:ee:ee", NAME="enp26s0f0"



SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="dd:dd:dd:dd:dd:dd", NAME="enp26s0f1"

SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="cc:cc:cc:cc:cc:cc", NAME="enp2s0"

share

asked 2 mins ago

bmccordbmccord

11

share

asked 2 mins ago

bmccordbmccord

11

asked 2 mins ago

bmccordbmccord

11

asked 2 mins ago

bmccordbmccord

11