[redirects-web/proxy] Add nmcheck.gnome.org

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit 12278a5b8947d3cfb5c7133b7e95a23c47665001
Author: Bartłomiej Piotrowski <bpiotrowski gnome org>
Date:   Sun Feb 6 13:43:10 2022 +0100

    Add nmcheck.gnome.org

 conf.d/nmcheck.gnome.org.conf | 10 ++++++++++
 1 file changed, 10 insertions(+)
---
diff --git a/conf.d/nmcheck.gnome.org.conf b/conf.d/nmcheck.gnome.org.conf
new file mode 100644
index 0000000..082dc8f
--- /dev/null
+++ b/conf.d/nmcheck.gnome.org.conf
@@ -0,0 +1,10 @@
+server {
+    listen 8080;
+    listen [::]:8080;
+    server_name nmcheck.gnome.org;
+
+    location = /check_network_status.txt  {
+       add_header Content-Type text/plain;
+       return 200 "NetworkManager is online\n";
+    }
+}