/etc/ipa/html/unauthorized.html is in freeipa-server 4.7.0~pre1+git20180411-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48  | <!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>IPA: Identity Policy Audit</title>
    <script type="text/javascript" src="../ui/js/libs/loader.js"></script>
    <script type="text/javascript">
        (function() {
            var styles = [
                '../ui/css/patternfly.css',
                '../ui/css/ipa.css'
            ];
            ipa_loader.styles(styles);
        })();
    </script>
</head>
<body class="info-page">
    <nav class="navbar navbar-default navbar-pf" role="navigation">
    <div class="navbar-header">
        <a class="brand" href="../ui/index.html"><img src="../ui/images/header-logo.png" alt="FreeIPA"></a>
    </div>
    </nav>
    <div class="container-fluid">
    <div class="row">
    <div class="col-sm-12">
        <h1>Unable to verify your Kerberos credentials</h1>
        <p>
            Please make sure that you have valid Kerberos tickets (obtainable via <strong>kinit</strong>), and that you have configured your browser correctly.
        </p>
        <h2>Browser configuration</h2>
        <div id="first-time">
            <p>
                If this is your first time, please <a href="ssbrowser.html">configure your browser</a>.
            </p>
        </div>
    </div>
    </div>
    </div>
</body>
</html>
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