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https://github.com/kevinveenbirkenbach/client-playbook.git
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Solved wireguard bugs
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parent
efe2efd739
commit
028e94d282
@ -4,7 +4,6 @@
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roles:
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- system-pacman
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- collection-administrator-base
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- application-caffeine
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- driver-non-free
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- name: application-wireguard
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@ -1,3 +1,2 @@
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dependencies:
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- system-aur-helper
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- system-gnome
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- system-aur-helper
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@ -10,35 +10,6 @@ Manages wireguard on a client.
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echo "PresharedKey: $(wg genpsk)"
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```
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## Debug
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### RTNETLINK answers: Permission denied
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When ```systemctl restart wg-quick@wg0.service``` returns __RTNETLINK answers: Permission denied__, modify _/etc/sysctl.conf_:
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```bash
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net.ipv6.conf.all.disable_ipv6 = 0
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net.ipv6.conf.default.disable_ipv6 = 0
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net.ipv6.conf.lo.disable_ipv6 = 0
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```
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Afterwards reload:
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```bash
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sysctl -p
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systemctl restart wg-quick@wg0.service
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```
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### SSH
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When the SSH connection over wireguard is buggy try:
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```bash
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ip li set mtu 1400 dev eth0
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ip li set mtu 1400 dev wlo1
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```
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This can be connected to the [MTU](https://www.imperva.com/learn/application-security/what-is-mtu-mss/)
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## Other
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- https://golb.hplar.ch/2019/01/expose-server-vpn.html
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- https://wiki.archlinux.org/index.php/WireGuard
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@ -50,4 +21,8 @@ This can be connected to the [MTU](https://www.imperva.com/learn/application-sec
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- https://forum.openwrt.org/t/cannot-ssh-to-clients-on-lan-when-accessing-router-via-wireguard-client/132709/3
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- https://serverfault.com/questions/1086297/wireguard-connection-dies-on-ubuntu-peer
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- https://unix.stackexchange.com/questions/624987/ssh-fails-to-start-when-listenaddress-is-set-to-wireguard-vpn-ip
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- https://serverfault.com/questions/210408/cannot-ssh-debug1-expecting-ssh2-msg-kex-dh-gex-reply
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- https://serverfault.com/questions/210408/cannot-ssh-debug1-expecting-ssh2-msg-kex-dh-gex-reply
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- https://www.thomas-krenn.com/de/wiki/Linux_ip_Kommando
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- https://wiki.archlinux.org/title/dhcpcd
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- https://wiki.ubuntuusers.de/NetworkManager/Dispatcher/
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- https://askubuntu.com/questions/1024916/how-can-i-launch-a-systemd-service-at-startup-before-another-systemd-service-sta
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10
roles/application-wireguard/files/set-mtu.service
Normal file
10
roles/application-wireguard/files/set-mtu.service
Normal file
@ -0,0 +1,10 @@
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[Unit]
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Description=set MTU
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Before=wg-quick@wg0.service
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[Service]
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Type=oneshot
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ExecStart=set-mtu.sh
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[Install]
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RequiredBy=wg-quick@wg0.service
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8
roles/application-wireguard/files/wireguard-ip.conf
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8
roles/application-wireguard/files/wireguard-ip.conf
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@ -0,0 +1,8 @@
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# This file is created by
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# https://github.com/kevinveenbirkenbach/client-playbook/tree/main/roles/application-wireguard
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net.ipv6.conf.all.disable_ipv6 = 0
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net.ipv6.conf.default.disable_ipv6 = 0
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net.ipv6.conf.lo.disable_ipv6 = 0
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net.ipv6.conf.all.forwarding = 1
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net.ipv4.ip_forward = 1
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@ -1,6 +1,13 @@
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- name: "restart set-mtu.service"
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systemd:
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name: set-mtu.service
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state: restarted
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enabled: yes
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daemon_reload: yes
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- name: "restart wireguard"
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systemd:
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name: wg-quick@wg0.service
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state: restarted
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enabled: yes
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daemon_reload: yes
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daemon_reload: yes
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@ -3,11 +3,25 @@
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name: wireguard-tools
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state: present
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- name: enable ipv4-forwarding
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shell: sysctl net.ipv4.ip_forward=1
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- name: create set-mtu.service
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copy:
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src: set-mtu.service
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dest: /etc/systemd/system/set-mtu.service
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notify: restart set-mtu.service
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- name: enable ipv6-forwarding
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shell: sysctl net.ipv6.conf.all.forwarding=1
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- name: create set-mtu.sh
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template:
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src: set-mtu.sh.j2
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dest: /usr/local/bin/set-mtu.sh
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notify: restart set-mtu.service
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- name: create wireguard-ip.conf
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copy:
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src: "wireguard-ip.conf"
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dest: /etc/sysctl.d/wireguard-ip.conf
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owner: root
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group: root
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notify: reload sysctl configuration
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- name: create /etc/wireguard/wg0.conf
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copy:
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4
roles/application-wireguard/templates/set-mtu.sh.j2
Normal file
4
roles/application-wireguard/templates/set-mtu.sh.j2
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@ -0,0 +1,4 @@
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#!/bin/bash
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ip li set mtu 1400 dev eth0
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ip li set mtu 1400 dev wlo1
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sysctl -p
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@ -1,2 +1,3 @@
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dependencies:
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- application-git
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- application-git
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- application-caffeine
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