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165 lines
16 KiB
YAML
165 lines
16 KiB
YAML
---
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# project information
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project_name: wireguard
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project_url: "https://www.wireguard.com/"
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project_logo: "https://www.wireguard.com/img/wireguard.svg"
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project_blurb: "[WireGuard®]({{ project_url }}) is an extremely simple yet fast and modern VPN that utilizes state-of-the-art cryptography. It aims to be faster, simpler, leaner, and more useful than IPsec, while avoiding the massive headache. It intends to be considerably more performant than OpenVPN. WireGuard is designed as a general purpose VPN for running on embedded interfaces and super computers alike, fit for many different circumstances. Initially released for the Linux kernel, it is now cross-platform (Windows, macOS, BSD, iOS, Android) and widely deployable. It is currently under heavy development, but already it might be regarded as the most secure, easiest to use, and simplest VPN solution in the industry."
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project_lsio_github_repo_url: "https://github.com/linuxserver/docker-{{ project_name }}"
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# supported architectures
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available_architectures:
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- { arch: "{{ arch_x86_64 }}", tag: "amd64-latest"}
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- { arch: "{{ arch_arm64 }}", tag: "arm64v8-latest"}
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# development version
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development_versions: true
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development_versions_items:
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- { tag: "latest", desc: "Stable releases based on Alpine *without* support for compiling Wireguard modules." }
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- { tag: "legacy", desc: "Stable releases with support for compiling Wireguard modules for older kernels." }
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# container parameters
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common_param_env_vars_enabled: true
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param_container_name: "{{ project_name }}"
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param_usage_include_vols: true
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param_volumes:
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- { vol_path: "/config", vol_host_path: "/path/to/appdata/config", desc: "Contains all relevant configuration files." }
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opt_param_usage_include_vols: true
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opt_param_volumes:
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- { vol_path: "/lib/modules", vol_host_path: "/lib/modules", desc: "Host kernel modules for situations where they're not already loaded." }
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param_usage_include_ports: true
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param_ports:
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- { external_port: "51820", internal_port: "51820/udp", port_desc: "wireguard port" }
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param_usage_include_env: true
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param_env_vars:
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- { env_var: "TZ", env_value: "Europe/London", desc: "Specify a timezone to use EG Europe/London"}
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cap_add_param: true
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cap_add_param_vars:
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- { cap_add_var: "NET_ADMIN" }
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opt_cap_add_param: true
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opt_cap_add_param_vars:
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- { cap_add_var: "SYS_MODULE" }
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custom_params:
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- { name: "sysctl", name_compose: "sysctls", value: ["net.ipv4.conf.all.src_valid_mark=1"], desc: "Required for client mode.", array: "true" }
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# optional container parameters
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opt_param_usage_include_env: true
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opt_param_env_vars:
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- { env_var: "SERVERURL", env_value: "wireguard.domain.com", desc: "External IP or domain name for docker host. Used in server mode. If set to `auto`, the container will try to determine and set the external IP automatically"}
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- { env_var: "SERVERPORT", env_value: "51820", desc: "External port for docker host. Used in server mode."}
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- { env_var: "PEERS", env_value: "1", desc: "Number of peers to create confs for. Required for server mode. Can also be a list of names: `myPC,myPhone,myTablet` (alphanumeric only)"}
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- { env_var: "PEERDNS", env_value: "auto", desc: "DNS server set in peer/client configs (can be set as `8.8.8.8`). Used in server mode. Defaults to `auto`, which uses wireguard docker host's DNS via included CoreDNS forward."}
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- { env_var: "INTERNAL_SUBNET", env_value: "10.13.13.0", desc: "Internal subnet for the wireguard and server and peers (only change if it clashes). Used in server mode."}
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- { env_var: "ALLOWEDIPS", env_value: "0.0.0.0/0", desc: "The IPs/Ranges that the peers will be able to reach using the VPN connection. If not specified the default value is: '0.0.0.0/0, ::0/0' This will cause ALL traffic to route through the VPN, if you want split tunneling, set this to only the IPs you would like to use the tunnel AND the ip of the server's WG ip, such as 10.13.13.1."}
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- { env_var: "PERSISTENTKEEPALIVE_PEERS", env_value: "", desc: "Set to `all` or a list of comma separated peers (ie. `1,4,laptop`) for the wireguard server to send keepalive packets to listed peers every 25 seconds. Useful if server is accessed via domain name and has dynamic IP. Used only in server mode."}
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- { env_var: "LOG_CONFS", env_value: "true", desc: "Generated QR codes will be displayed in the docker log. Set to `false` to skip log output."}
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optional_block_1: false
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optional_block_1_items: ""
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# application setup block
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app_setup_block_enabled: true
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app_setup_block: |
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During container start, it will first check if the wireguard module is already installed and loaded. Kernels newer than 5.6 generally have the wireguard module built-in (along with some older custom kernels). However, the module may not be enabled. Make sure it is enabled prior to starting the container.
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This can be run as a server or a client, based on the parameters used.
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## Note on iptables
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Some hosts may not load the iptables kernel modules by default. In order for the container to be able to load them, you need to assign the `SYS_MODULE` capability and add the optional `/lib/modules` volume mount. Alternatively you can `modprobe` them from the host before starting the container.
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## Server Mode
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If the environment variable `PEERS` is set to a number or a list of strings separated by comma, the container will run in server mode and the necessary server and peer/client confs will be generated. The peer/client config qr codes will be output in the docker log if `LOG_CONFS` is set to `true`. They will also be saved in text and png format under `/config/peerX` in case `PEERS` is a variable and an integer or `/config/peer_X` in case a list of names was provided instead of an integer.
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Variables `SERVERURL`, `SERVERPORT`, `INTERNAL_SUBNET`, `PEERDNS`, `INTERFACE`, `ALLOWEDIPS` and `PERSISTENTKEEPALIVE_PEERS` are optional variables used for server mode. Any changes to these environment variables will trigger regeneration of server and peer confs. Peer/client confs will be recreated with existing private/public keys. Delete the peer folders for the keys to be recreated along with the confs.
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To add more peers/clients later on, you increment the `PEERS` environment variable or add more elements to the list and recreate the container.
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To display the QR codes of active peers again, you can use the following command and list the peer numbers as arguments: `docker exec -it wireguard /app/show-peer 1 4 5` or `docker exec -it wireguard /app/show-peer myPC myPhone myTablet` (Keep in mind that the QR codes are also stored as PNGs in the config folder).
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The templates used for server and peer confs are saved under `/config/templates`. Advanced users can modify these templates and force conf generation by deleting `/config/wg_confs/wg0.conf` and restarting the container.
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The container managed server conf is hardcoded to `wg0.conf`. However, the users can add additional tunnel config files with `.conf` extensions into `/config/wg_confs/` and the container will attempt to start them all in alphabetical order. If any one of the tunnels fail, they will all be stopped and the default route will be deleted, requiring user intervention to fix the invalid conf and a container restart.
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## Client Mode
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Do not set the `PEERS` environment variable. Drop your client conf(s) into the config folder as `/config/wg_confs/<tunnel name>.conf` and start the container. If there are multiple tunnel configs, the container will attempt to start them all in alphabetical order. If any one of the tunnels fail, they will all be stopped and the default route will be deleted, requiring user intervention to fix the invalid conf and a container restart.
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If you get IPv6 related errors in the log and connection cannot be established, edit the `AllowedIPs` line in your peer/client wg0.conf to include only `0.0.0.0/0` and not `::/0`; and restart the container.
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## Road warriors, roaming and returning home
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If you plan to use Wireguard both remotely and locally, say on your mobile phone, you will need to consider routing. Most firewalls will not route ports forwarded on your WAN interface correctly to the LAN out of the box. This means that when you return home, even though you can see the Wireguard server, the return packets will probably get lost.
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This is not a Wireguard specific issue and the two generally accepted solutions are NAT reflection (setting your edge router/firewall up in such a way as it translates internal packets correctly) or split horizon DNS (setting your internal DNS to return the private rather than public IP when connecting locally).
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Both of these approaches have positives and negatives however their setup is out of scope for this document as everyone's network layout and equipment will be different.
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## Maintaining local access to attached services
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** Note: This is not a supported configuration by Linuxserver.io - use at your own risk.
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When routing via Wireguard from another container using the `service` option in docker, you might lose access to the containers webUI locally. To avoid this, exclude the docker subnet from being routed via Wireguard by modifying your `wg0.conf` like so (modifying the subnets as you require):
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```ini
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[Interface]
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PrivateKey = <private key>
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Address = 9.8.7.6/32
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DNS = 8.8.8.8
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PostUp = DROUTE=$(ip route | grep default | awk '{print $3}'); HOMENET=192.168.0.0/16; HOMENET2=10.0.0.0/8; HOMENET3=172.16.0.0/12; ip route add $HOMENET3 via $DROUTE;ip route add $HOMENET2 via $DROUTE; ip route add $HOMENET via $DROUTE;iptables -I OUTPUT -d $HOMENET -j ACCEPT;iptables -A OUTPUT -d $HOMENET2 -j ACCEPT; iptables -A OUTPUT -d $HOMENET3 -j ACCEPT; iptables -A OUTPUT ! -o %i -m mark ! --mark $(wg show %i fwmark) -m addrtype ! --dst-type LOCAL -j REJECT
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PreDown = HOMENET=192.168.0.0/16; HOMENET2=10.0.0.0/8; HOMENET3=172.16.0.0/12; ip route del $HOMENET3 via $DROUTE;ip route del $HOMENET2 via $DROUTE; ip route del $HOMENET via $DROUTE; iptables -D OUTPUT ! -o %i -m mark ! --mark $(wg show %i fwmark) -m addrtype ! --dst-type LOCAL -j REJECT; iptables -D OUTPUT -d $HOMENET -j ACCEPT; iptables -D OUTPUT -d $HOMENET2 -j ACCEPT; iptables -D OUTPUT -d $HOMENET3 -j ACCEPT
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```
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## Site-to-site VPN
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** Note: This is not a supported configuration by Linuxserver.io - use at your own risk.
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Site-to-site VPN in server mode requires customizing the `AllowedIPs` statement for a specific peer in `wg0.conf`. Since `wg0.conf` is autogenerated when server vars are changed, it is not recommended to edit it manually.
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In order to customize the `AllowedIPs` statement for a specific peer in `wg0.conf`, you can set an env var `SERVER_ALLOWEDIPS_PEER_<peer name or number>` to the additional subnets you'd like to add, comma separated and excluding the peer IP (ie. `"192.168.1.0/24,192.168.2.0/24"`). Replace `<peer name or number>` with either the name or number of a peer (whichever is used in the `PEERS` var).
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For instance `SERVER_ALLOWEDIPS_PEER_laptop="192.168.1.0/24,192.168.2.0/24"` will result in the wg0.conf entry `AllowedIPs = 10.13.13.2,192.168.1.0/24,192.168.2.0/24` for the peer named `laptop`.
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Keep in mind that this var will only be considered when the confs are regenerated. Adding this var for an existing peer won't force a regeneration. You can delete wg0.conf and restart the container to force regeneration if necessary.
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Don't forget to set the necessary POSTUP and POSTDOWN rules in your client's peer conf for lan access.
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# changelog
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changelogs:
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- { date: "10.03.24:", desc: "Use iptables-legacy on Alpine 3.19." }
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- { date: "05.03.24:", desc: "Rebase master to Alpine 3.19." }
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- { date: "03.10.23:", desc: "**Potentially Breaking Change:** Support for multiple interfaces added. Wireguard confs moved to `/config/wg_confs/`. Any file with a `.conf` extension in that folder will be treated as a live tunnel config and will be attempted to start. If any of the tunnels fail, all tunnels will be stopped. Tunnels are started in alphabetical order. Managed server conf will continue to be hardcoded to `wg0.conf`." }
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- { date: "28.06.23:", desc: "Rebase master to Alpine 3.18 again." }
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- { date: "26.06.23:", desc: "Revert master to Alpine 3.17, due to issue with openresolv." }
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- { date: "24.06.23:", desc: "Rebase master to Alpine 3.18, deprecate armhf as per [https://www.linuxserver.io/armhf](https://www.linuxserver.io/armhf)." }
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- { date: "26.04.23:", desc: "Rework branches. Swap alpine and ubuntu builds." }
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- { date: "29.01.23:", desc: "Rebase to alpine 3.17." }
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- { date: "10.01.23:", desc: "Add new var to add `PersistentKeepalive` to server config for select peers to survive server IP changes when domain name is used." }
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- { date: "26.10.22:", desc: "Better handle unsupported peer names. Improve logging." }
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- { date: "12.10.22:", desc: "Add Alpine branch. Optimize wg and coredns services." }
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- { date: "04.10.22:", desc: "Rebase to Jammy. Upgrade to s6v3." }
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- { date: "16.05.22:", desc: "Improve NAT handling in server mode when multiple ethernet devices are present." }
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- { date: "23.04.22:", desc: "Add pre-shared key support. Automatically added to all new peer confs generated, existing ones are left without to ensure no breaking changes." }
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- { date: "10.04.22:", desc: "Rebase to Ubuntu Focal. Add `LOG_CONFS` env var. Remove deprecated `add-peer` command." }
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- { date: "28.10.21:", desc: "Add site-to-site vpn support." }
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- { date: "11.02.21:", desc: "Fix bug related to changing internal subnet and named peer confs not updating." }
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- { date: "06.10.20:", desc: "Disable CoreDNS in client mode, or if port 53 is already in use in server mode." }
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- { date: "04.10.20:", desc: "Allow to specify a list of names as PEERS and add ALLOWEDIPS environment variable. Also, add peer name/id to each one of the peer sections in wg0.conf. Important: Existing users need to delete `/config/templates/peer.conf` and restart" }
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- { date: "27.09.20:", desc: "Cleaning service binding example to have accurate PreDown script." }
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- { date: "06.08.20:", desc: "Replace resolvconf with openresolv due to dns issues when a client based on this image is connected to a server also based on this image. Add IPv6 info to readme. Display kernel version in logs." }
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- { date: "29.07.20:", desc: "Update Coredns config to detect dns loops (existing users need to delete `/config/coredns/Corefile` and restart)." }
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- { date: "27.07.20:", desc: "Update Coredns config to prevent issues with non-user-defined bridge networks (existing users need to delete `/config/coredns/Corefile` and restart)." }
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- { date: "05.07.20:", desc: "Add Debian updates and security repos for headers." }
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- { date: "25.06.20:", desc: "Simplify module tests, prevent iptables issues from resulting in false negatives." }
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- { date: "19.06.20:", desc: "Add support for Ubuntu Focal (20.04) kernels. Compile wireguard tools and kernel module instead of using the ubuntu packages. Make module install optional. Improve verbosity in logs." }
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- { date: "29.05.20:", desc: "Add support for 64bit raspbian." }
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- { date: "28.04.20:", desc: "Add Buster/Stretch backports repos for Debian. Tested with OMV 5 and OMV 4 (on kernel 4.19.0-0.bpo.8-amd64)." }
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- { date: "20.04.20:", desc: "Fix typo in client mode conf existence check." }
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- { date: "13.04.20:", desc: "Fix bug that forced conf recreation on every start." }
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- { date: "08.04.20:", desc: "Add arm32/64 builds and enable multi-arch (rpi4 with ubuntu and raspbian buster tested). Add CoreDNS for `PEERDNS=auto` setting. Update the `add-peer`/`show-peer` scripts to utilize the templates and the `INTERNAL_SUBNET` var (previously missed, oops)." }
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- { date: "05.04.20:", desc: "Add `INTERNAL_SUBNET` variable to prevent subnet clashes. Add templates for server and peer confs." }
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- { date: "01.04.20:", desc: "Add `show-peer` script and include info on host installed headers." }
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- { date: "31.03.20:", desc: "Initial Release." }
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