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<h1>connectivity-check</h1>
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<h2>Setup Android</h2>
If you want to use <code>http</code>:
<pre># settings put global captive_portal_use_https 0</pre>
<pre># settings put global captive_portal_http_url "http://connectivitycheck.sp-codes.de/generate204"</pre>
If you want to use <code>https</code>:
<pre># settings put global captive_portal_use_https 1</pre>
<pre># settings put global captive_portal_https_url "https://connectivitycheck.sp-codes.de/generate204"</pre>
<p>Maybe you have to reboot your phone after updating the settings. For more information see <a href="https://android.stackexchange.com/a/186995/288049">this</a>.</p>
<p>If you are using AFWall+ you need to give access to [1000] Android-System and in some cases [10040] CaptivePortalLogin to make it work.</p>
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<h2>Setup Ubuntu</h2>
Open <code>/etc/NetworkManager/NetworkManager.conf</code>:
<pre># sudo nano /etc/NetworkManager/NetworkManager.conf</pre>
Add the following lines (or change them to this):
<pre>
[connectivity]
uri=https://connectivitycheck.sp-codes.de/generate204
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Restart the network-manager:
<pre># sudo service network-manager restart</pre>
<p>For more information see <a href="https://askubuntu.com/q/1167177/920103">this</a>.</p>
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