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+#Certificate
+
+Certificate are used to certify that your server is the good one, not a falsified one.
+
+YunoHost provide a self-signed certificate.
+
+On your clients software, like your web browser, your heavy email client, your heavy XMPP client you will need to add an exception for that self-signed certificate.
+
+You can have a certificate signed by an autority.
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