This article gives you a comprehensive understanding of Java object serialization and deserialization>>> 
First, record an error
[root@vpn-server wireguard]# wg-quick up wg0
[#] ip link add wg0 type wireguard
RTNETLINK answers: Operation not supported
Unable to access interface: Protocol not supported
[#] ip link delete dev wg0
Cannot find device "wg0"
At this point, pay attention to update the kernel and restart
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