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Samuel Philipp 2024-03-30 03:09:13 +01:00
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---
layout: article.njk
title: Setup Captive Portal Check
service: connectivitycheck
tags:
- Tutorial
- Captive Portal Check
---
# Setup Captive Portal Check
In this article, you will learn how to set up your own captive portal check on different devices.
## Android
To change the Captive Portal Check in Android, you need a terminal app or a connection via ADB to a computer.
To use `http` you can run the following commands with the respective method:
```
# settings put global captive_portal_use_https 0
# settings put global captive_portal_http_url "http://connectivitycheck.sp-codes.de/generate204"
```
To use `https` you can use the following two commands:
```
# settings put global captive_portal_use_https 1
# settings put global captive_portal_https_url "https://connectivitycheck.sp-codes.de/generate204"
```
Maybe you have to reboot your phone after updating the settings.
If you are using AFWall+ you need to give access to _[1000] Android-System_ and in some cases _[10040] CaptivePortalLogin_ to make it work.
## Ubuntu
In Ubuntu, the file `/etc/NetworkManager/NetworkManager.conf` must be changed. Add or change the following lines:
```
[connectivity]
uri=https://connectivitycheck.sp-codes.de/generate204
```
Restart the network-manager:
```
sudo service network-manager restart
```
## Fedora
In Fedora, the file `/etc/NetworkManager/NetworkManager.conf` must be changed. Add or change the following lines:
```
[connectivity]
uri=https://connectivitycheck.sp-codes.de/generate204
```
Restart the _NetworkManager_:
```
sudo service NetworkManager restart
```
## Firefox
Type [about:config](about:config) in the Firefox address bar and search for `captivedetect.canonicalURL` and `network.connectivity-service`. Set the URL values to `https://connectivitycheck.sp-codes.de/generate204`, the domain values to `connectivitycheck.sp-codes.de`. That's it.
## Sources
* [Setup on Android](https://android.stackexchange.com/a/186995/288049)
* [Setup on Ubuntu](https://askubuntu.com/q/1167177/920103)
* [Captive Portal Kuketz Blog](https://www.kuketz-blog.de/android-captive-portal-check-204-http-antwort-von-captiveportal-kuketz-de/)