I'm using EasyTether to tunnel network traffic over USB through my phone. It works great.
$ ifconfig tun-easytether
tun-easytether: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST> mtu 1500
inet 192.168.117.0 netmask 255.255.255.254 destination 192.168.117.1
inet6 fe80::f476:bf20:ab51:d533 prefixlen 64 scopeid 0x20<link>
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 500 (UNSPEC)
RX packets 154278 bytes 156290109 (156.2 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 93661 bytes 13448935 (13.4 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
I would like to set the nameserver on that interface to Google's public 8.8.8.8/8.8.4.4.
After looking through various how-to's on google it seems that I need to configure netplan.
The guides reference a yaml file at /etc/netplan/01-netcfg.yaml. This file doesn't exist for me. Another AskUbuntu question indicated that this file needs to be created by the user (me).
The man page shows some examples of this yaml file, but the use cases don't match mine, so I feel dubious about guessing.
If all I want to do is set the nameserver on this interface, is there a simple bit of yaml I can put in that file that achieves my goal?
My guess would be this:
network:
version: 2
renderer: NetworkManager
ethernets:
tun-easytether:
nameservers:
addresses: [8.8.8.8,8.8.4.4]
But I really really have no idea what I'm doing in that file, so I'm hoping I can find some guidance or a guide that specifically addresses my use case.
