Page Comparison

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Install and configure Wireguard

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Update the repo

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Install wireguard

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Create the config file

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Start and test

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Configure auto-start

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1. Update the repo

   Code Block

   [root@pikvm pisugar-archlinux]# rw + mount -o remount,rw / + mount -o remount,rw /boot + set +x === PiKVM is in Read-Write mode === [root@pikvm pisugar-archlinux]# sudo pacman -Syy :: Synchronizing package databases... core 239.0 KiB 79.1 KiB/s 00:03 [###################################] 100% extra 9.0 MiB 414 KiB/s 00:22 [###################################] 100% community 45.0 B 121 B/s 00:00 [###################################] 100% alarm 94.8 KiB 243 KiB/s 00:00 [###################################] 100% aur 9.3 KiB 12.1 KiB/s 00:01 [###################################] 100% pikvm 10.7 KiB 3.00 KiB/s 00:04 [###################################] 100%

2. Install wireguard

   Code Block

   [root@pikvm pisugar-archlinux]# pacman -S wireguard-tools resolving dependencies... looking for conflicting packages... Packages (1) wireguard-tools-1.0.20210914-2 Total Download Size: 0.08 MiB Total Installed Size: 0.22 MiB :: Proceed with installation? [Y/n] Y :: Retrieving packages... wireguard-tools-1.0.20210914-... 80.4 KiB 45.4 KiB/s 00:02 [###################################] 100% (1/1) checking keys in keyring [###################################] 100% (1/1) checking package integrity [###################################] 100% (1/1) loading package files [###################################] 100% (1/1) checking for file conflicts [###################################] 100% (1/1) checking available disk space [###################################] 100% :: Processing package changes... (1/1) installing wireguard-tools [###################################] 100% Optional dependencies for wireguard-tools openresolv: for DNS functionality [installed] sudo: elevate privileges [installed] :: Running post-transaction hooks... (1/2) Reloading system manager configuration... (2/2) Arming ConditionNeedsUpdate...

3. Create private and public keys

   Code Block
   wg genkey | tee privatekey | wg pubkey > publickey

4. Create the config file
   Now you can configure the server, just add a new file called /etc/wireguard/wg0.conf. Insert the following configuration lines and replace the <server-private-key> placeholder with the previously generated private key.

   You need to insert a private IP address for the <server-ip-address> that doesn't interfere with another subnet. Next, replace the <public-interface> with your interface the server should listen on for incoming connections.

5. Code Block
   vi /etc/wireguard/wg0.conf [Interface] PrivateKey=<server-private-key> Address=<server-ip-address>/<subnet> SaveConfig=true PostUp = iptables -A FORWARD -i wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o <public-interface> -j MASQUERADE; PostDown = iptables -D FORWARD -i wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o <public-interface> -j MASQUERADE; ListenPort = 51820

6. Configure the wireguard client
   Now, we need to configure the client. Create a new file called /etc/wireguard/wg0.conf. Insert the following configuration lines and replace the <client-private-key> placeholder with the previously generated private key.

   You need to insert a private IP address for the <client-ip-address> in the same subnet like the server's IP address. Next, replace the <server-public-key> with the generated servers public key. And also replace <server-public-ip-address> with the IP address where the server listens for incoming connections.

   Note that if you set the AllowedIPs to 0.0.0.0/0 the client will route ALL traffic through the VPN tunnel. That means, even if the client will access the public internet, this will break out on the server-side. If you don't want route all traffic through the tunnel, you need to replace this with the target IP addresses or networks.

   Code Block
   [Interface] PrivateKey = <client-private-key> Address = <client-ip-address>/<subnet> SaveConfig = true [Peer] PublicKey = <server-public-key> Endpoint = <server-public-ip-address>:51820 AllowedIPs = 0.0.0.0/0

7. Start and test
   enable the wg0 interface with the following command

8. Code Block
   wg-quick up wg0

   You can check the status of the connection with this command.

   Code Block
   wg

   Next, you need to add the client to the server configuration file. Otherwise, the tunnel will not be established. Replace the <client-public-key> with the clients generated public key and the <client-ip-address> with the client's IP address on the wg0 interface.

   Code Block
   wg set wg0 peer <client-public-key> allowed-ips <client-ip-address>/32

   Now you can enable the wg0 interface on the server.

   Code Block
   wg-quick up wg0

   Code Block
   wg

9. Configure auto-start

Install and configure Lets Encrypt Certificates for the PiKVM

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