How to set MTU on Linux interface

The MTU can be set with:

$ sudo ip link set dev tun0 mtu 1350

It can be tested with

$ ip a s 

And will show something like the below:

5: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1350 qdisc pfifo_fast state UNKNOWN group default qlen 100

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