Disable TCP offloading on all Interfaces in Linux

We had a customer that was experiencing severe issues with checksum failures and it was causing many retransmissions to occur on the virtual machine.

My colleague was able to come up with a oneliner to disable offloading on all the interfaces.

# for iface in $(cd /sys/class/net; echo *); do ethtool -k $iface | awk -F: '/offload: on$/{print$1}' | sed 's/^\(.\).*-\(.\).*-\(.\).*/\1\2\3/' | xargs --no-run-if-empty -n1 -I{} ethtool -K $iface {} off; done

Nice. Thanks D 😀