Differences

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--- omv7:omv7_plugins:wireguard [2025/08/31 08:21] – [Dynamic IP update with duckdns on OMV] chente
+++ omv7:omv7_plugins:wireguard [2025/12/31 06:39] (current) – [Update DuckDNS IP. Receive notifications only when it changes and restart WireGuard automatically] chente
@@ Line 51: / Line 51: @@
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 If your system is based on an <b>Armbian</b> image, installing this plugin may break the existing Kernel.<br>
-To solve it you must reinstall the Armbian Kernel once the plugin is installed and everything will work normally.
+To solve it you must reinstall the Armbian Kernel once the plugin is installed and everything will work normally.<br>
+Read this forum thread: https://forum.openmediavault.org/index.php?thread/54000-catastrophic-wireguard-install/
 </tr></table></body></html>
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         * This will have installed the ''curl'' package on the system. Now select the task again and press the **Edit** button. Delete the ''apt install curl'' command you wrote earlier.
   * Type the following command in the **Command** field of the dialog box.
-<html><body><pre><code>echo url="https://www.duckdns.org/update?domains=MY_DOMAIN&token=MY_TOKEN&ip=" | curl -k -o /var/log/duck.log -K -</code></pre></body></html>
+<html><body><pre><code>echo url="https://www.duckdns.org/update?domains=[MY_DOMAIN]&token=[MY_TOKEN]&ip=" | curl -k -o /var/log/duck.log -K -</code></pre></body></html>
-  * Replace ''MY_DOMAIN'' with the subdomain you chose in "''MY_DOMAIN''.duckdns.org".
+  * Replace ''[MY_DOMAIN]'' with the subdomain you chose in "''[MY_DOMAIN]''.duckdns.org".
-  * Replace ''MY_TOKEN'' with the token that has been assigned to your duckdns account.
+  * Replace ''[MY_TOKEN]'' with the token that has been assigned to your duckdns account.
   * In the **Time of execution** field, choose the Hourly option.
     * This will run the command every hour. If your IP changes frequently you can change this to run for shorter periods of time. Every 5 minutes may be reasonable.
@@ Line 537: / Line 538: @@
 ----
-=== Update IP in DuckDNS only when it changes and restart WireGuard if necessary ===
-You can add this script to a scheduled task so that your public IP is updated only if it changes.
-Additionally, if you are using a WireGuard tunnel between two servers and the public IP changes on one of them, the tunnel may drop (because it will still try to reach the old IP). By automatically restarting the service, the peer will receive a new handshake and the IP in the tunnel will be updated.
-Example command:
-<html><body><pre><code>IP=$(curl -s https://api.ipify.org); \
-[ "$IP" != "$(cat /root/last_ip 2>/dev/null)" ] && \
-curl -k "https://www.duckdns.org/update?domains=[MYDOMAIN]&token=[MYTOKEN]&ip=" && \
-echo "$IP" > /root/last_ip && \
-systemctl restart wg-quick@wgnet_[MYTUNNEL]</code></pre></body></html>
-  * Replace [MYDOMAIN] with your DuckDNS domain and [MYTOKEN] with your token.
-  * Replace [MYTUNNEL] with the name you assigned to your tunnel in the WireGuard plugin.
-  * Remember to enable notifications in OMV so you get an alert when this task runs.
-  * Add a descriptive label to the scheduled task so you can easily identify it.
-Once created, simply copy the command into Scheduled Tasks and set the execution interval.
-Make sure to run it as root (default).
-----
 ===== Common Problems =====