Notes/Networking/wireGuard/ubuntu-server.md

Ubuntu Server WireGuard Setup

1. update and install

sudo apt update
sudo apt install -y wireguard

2. validate that its installed

wg --version

3. WireGuard configs live here:

/etc/wireguard/

Filename must NOT match the interface name

# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host noprefixroute
       valid_lft forever preferred_lft forever
2: enp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 52:54:00:4f:6e:1b brd ff:ff:ff:ff:ff:ff
    inet 192.168.50.47/24 metric 100 brd 192.168.50.255 scope global dynamic enp1s0
       valid_lft 86009sec preferred_lft 86009sec
    inet6 2404:4400:4181:9200:5054:ff:fe4f:6e1b/64 scope global dynamic mngtmpaddr noprefixroute
       valid_lft 86331sec preferred_lft 86331sec
    inet6 fe80::5054:ff:fe4f:6e1b/64 scope link
       valid_lft forever preferred_lft forever
# touch /etc/wireguard/wg0.conf
#

I made a blank file and will copy and paste the data from the wireguard conf I have into the blank one I created.

Set permissions

sudo chmod 600 /etc/wireguard/wg0.conf

Bring up WireGuard

sudo wg-quick up wg0

Validate

sudo wg

Can enable at boot if that is your bag

sudo systemctl enable wg-quick@wg0