To change #MTU size in #Linux:
If your network interface is configured to obtain a static IP address, then you can change the MTU size by configuring the /etc/network/interfaces file.
Make sure to replace <interface-name> with the actual interface name and <mtu_size> with the MTU size you want to set on the network interface.
More Info > https://linuxapt.com/blog/21-how-to-change-mtu-size-in-linux