Script Dump: Live Epoch Time QR Code

This is a script that I needed to investigate a certain security method. Not needed any more, so here ya go!

<!DOCTYPE html>
<html>
<head>
    <title>Live Epoch Time QR Code</title>
    <style>
        .qr-code {
            display: inline-block;
            width: 128px;
            height: 128px;
            border: 1px solid #000;
        }
    </style>
</head>
<body>
    <h1>Live Epoch Time QR Code</h1>
    <div id="epochTime"></div>
    <div id="qrcode" class="qr-code"></div>

    <script>
        // Function to update the epoch time and QR code
        function updateTimeAndQRCode() {
            var epochTime = Math.floor(Date.now() / 1000); // Current epoch time in seconds
            document.getElementById('epochTime').innerHTML = 'Epoch Time: ' + epochTime;

            // Generate QR code using CSS
            var qrCodeElement = document.getElementById("qrcode");
            qrCodeElement.style.backgroundImage = "url('https://api.qrserver.com/v1/create-qr-code/?data=" + epochTime + "&size=128x128')";
        }

        // Update the time and QR code every second
        setInterval(updateTimeAndQRCode, 1000);

        // Initial call to display time and QR code
        updateTimeAndQRCode();
    </script>
</body>
</html>

 

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Update for bot blocker

Update for bot blocker as mentioned here: https://3xn.nl/projects/2023/09/20/crude-solution-to-ban-bots-by-their-user-agent/

My website is still being kicked around sometimes, but I’m winning D:

'ubermetrics-technologies', 'seokicks', 'ClaudeBot', 'serpstatbot', 'Barkrowler', 'YisouSpider', 'babbar.tech', 'AwarioBot', 'bytespider', 'amazonbot', 'MJ12bot', 'YandexBot', 'SemrushBot', 'dotbot', 'AspiegelBot', 'DataForSeoBot', 'DotBot', 'Pinterestbot', 'PetalBot', 'HeadlessChrome', 'GPTBot', 'Sogou', 'ALittle Client', 'fidget-spinner-bot', 'intelx.io_bot', 'Mediatoolkitbot', 'BLEXBot', 'AhrefsBot'

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How to switch back to the old UI in TeamViewer 15

It can happen that your TeamViewer instance is not starting any more after switching over to the new interface or that you really do not like the new looks of the new interface.

  1. Windowskey + R
  2. Type RegEdit and press enter
  3. Copy the following line and paste it into the “address bar” of RegEdit and press enter.
    Computer\HKEY_CURRENT_USER\Software\TeamViewer
  4. Double click on the entry named “UIVersion”
  5. Change the value 4 to 2
  6. Press OK

Done.

 

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More tweaks for the .htaccess file!

Here’s a list of stuff that I have in my .htaccess files on various websites.

I want to work on my website, but any other visitor should be booted to another website so I can work in peace. Sidenote: It's forever since I last used this, so it might work. Or not.

---

# YOUR IP address goes here:
RewriteCond %{REMOTE_ADDR} !^000\.000\.000\.000$
# And provides you access to:
RewriteCond %{REQUEST_URI} !^https://DOMAIN.TLD$ [NC]
# Fine, go have all the media as well
RewriteCond %{REQUEST_URI} !\.(jpg|jpeg|png|gif|svg|swf|css|ico|js)$ [NC]
# Any other visitor can go visit the following website:
RewriteRule .* https://DOMAIN.TLD/ [R=302,L]

# Hey, no viewing access to this file
<FilesMatch "^.ht">
Order deny,allow
Deny from all
</FilesMatch>

# Disable Server Signature
ServerSignature Off

# SSL all the things!
RewriteCond %{HTTPS} !=on
RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R,L]

# No WWW
RewriteCond %{HTTP_HOST} ^www\.DOMAIN\.TLD$
RewriteRule ^/?$ "https\:\/\/DOMAIN\.TLD\/" [R=301,L]

# Do we like Symlinks? Yeah we do.
Options +FollowSymlinks

# No open directories or directory listings. What is this... 1998?
Options All -Indexes
IndexIgnore *

# Rewrite rules to block out some common exploits.
RewriteCond %{QUERY_STRING} base64_encode[^(]*\([^)]*\) [OR]
RewriteCond %{QUERY_STRING} (<|%3C)([^s]*s)+cript.*(>|%3E) [NC,OR]
RewriteCond %{QUERY_STRING} GLOBALS(=|\[|\%[0-9A-Z]{0,2}) [OR]
RewriteCond %{QUERY_STRING} _REQUEST(=|\[|\%[0-9A-Z]{0,2})
RewriteRule .* index.php [F]

# PHP doohickies
php_flag register_globals off 
php_flag safe_mode off 
php_flag allow_url_fopen off 
php_flag display_errors off 
php_value session.save_path '/tmp' 
php_value disable_functions "exec,passthru,shell_exec,system,curl_multi_exec,show_source,eval"

# File Injection Protection, or a code-condom. What.
RewriteCond %{REQUEST_METHOD} GET
RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=http:// [OR]
RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=(\.\.//?)+ [OR]
RewriteCond %{QUERY_STRING} [a-zA-Z0-9_]=/([a-z0-9_.]//?)+ [NC]
RewriteRule .* - [F]

# /proc/self/environ? Go away!
RewriteCond %{QUERY_STRING} proc/self/environ [NC,OR]

# Disallow Access To Sensitive Files. Enter your own file names.
RewriteRule ^(htaccess.txt|configuration.php(-dist)?|joomla.xml|README.txt|web.config.txt|CONTRIBUTING.md|phpunit.xml.dist|plugin_googlemap2_proxy.php)$ - [F]

# Don't allow any pages to be framed - Defends against CSRF
<IfModule mod_headers.c>
Header set X-Frame-Options SAMEORIGIN
</IfModule>

# Disallow Php Easter Eggs
RewriteCond %{QUERY_STRING} \=PHP[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12} [NC]
RewriteRule .* index.php [F]

# Libwww-perl Access Block
RewriteCond %{HTTP_USER_AGENT} libwww-perl.* 
RewriteRule .* ? [F,L]

# Uh. I forgot.
<IfModule mod_autoindex.c>
IndexIgnore *
</IfModule>

# NO SNIFFYWIFFY OwO
<IfModule mod_headers.c>
Header always set X-Content-Type-Options "nosniff"
</IfModule>

# NEEDS TESTING
# Turn on IE8-IE9 XSS prevention tools
#Header set X-XSS-Protection "1; mode=block"

# NEEDS TESTING TOO
# Only allow JavaScript from the same domain to be run.
# Don't allow inline JavaScript to run.
#Header set X-Content-Security-Policy "allow 'self';"

# Example if you don't like Russia and Turkey (Optional A1 is to block anonymous proxies)
RewriteCond %{ENV:GEOIP_COUNTRY_CODE} ^(RU|TR)$
RewriteRule .* https://DOMAIN.TLD/directorywithindexdothtml/ [R=302,L]

# Caching stuff
<FilesMatch "\.(ico|jpg|jpeg|png|gif|js|css|swf)$">
Header set Cache-Control "public, max-age=3600"
</FilesMatch>

# Compress text, html, javascript, css, xml!
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/html text/xml text/css text/plain
AddOutputFilterByType DEFLATE image/svg+xml application/xhtml+xml application/xml
AddOutputFilterByType DEFLATE application/rdf+xml application/rss+xml application/atom+xml
AddOutputFilterByType DEFLATE text/javascript application/javascript application/x-javascript application/json
AddOutputFilterByType DEFLATE application/x-font-ttf application/x-font-otf
AddOutputFilterByType DEFLATE font/truetype font/opentype
</IfModule>

# Joomla! core SEF Section.
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
RewriteCond %{REQUEST_URI} !^/index\.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* index.php [L]

# PHP TWEAKS 
php_value upload_max_filesize 200M
php_value post_max_size 200M
php_value max_input_vars 2000
php_value max_execution_time 120
php_value memory_limit 1024M

## BEGIN EXPIRES CACHING 
<IfModule mod_expires.c>
ExpiresActive on
ExpiresDefault "access plus 1 month"
ExpiresByType text/cache-manifest "access plus 0 seconds"
ExpiresByType text/html "access plus 0 seconds"
ExpiresByType text/xml "access plus 0 seconds"
ExpiresByType application/xml "access plus 0 seconds"
ExpiresByType application/json "access plus 0 seconds"
ExpiresByType application/rss+xml "access plus 1 hour"
ExpiresByType application/atom+xml "access plus 1 hour"
ExpiresByType image/x-icon "access plus 1 week"
ExpiresByType image/gif "access plus 1 month"
ExpiresByType image/png "access plus 1 month"
ExpiresByType image/jpg "access plus 1 month"
ExpiresByType image/jpeg "access plus 1 month"
ExpiresByType video/ogg "access plus 1 month"
ExpiresByType audio/ogg "access plus 1 month"
ExpiresByType video/mp4 "access plus 1 month"
ExpiresByType video/webm "access plus 1 month"
ExpiresByType text/x-component "access plus 1 month"
ExpiresByType application/x-font-ttf "access plus 1 month"
ExpiresByType font/opentype "access plus 1 month"
ExpiresByType application/x-font-woff "access plus 1 month"
ExpiresByType image/svg+xml "access plus 1 month"
ExpiresByType application/vnd.ms-fontobject "access plus 1 month"
ExpiresByType text/css "access plus 1 year"
ExpiresByType text/javascript "access plus 1 year"
ExpiresByType application/javascript "access plus 1 year"
<IfModule mod_headers.c>
Header append Cache-Control "public"
</IfModule>
</IfModule>
## END EXPIRES CACHING

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Increasing the character limit on Mastodon 4.1.x and 4.2.x

There is a very small difference between the two Git branches, so pay attention.

su - mastodon

Edit if your Mastodon instance is v4.1.x

nano live/app/javascript/mastodon/features/compose/components/compose_form.js

Edit if your Mastodon instance is v4.2.x

nano live/app/javascript/mastodon/features/compose/components/compose_form.jsx

In this file, you will find the number “500” twice. Replace that number with your desired character limit and save the file.

nano live/app/validators/status_length_validator.rb

In this file, you will find the number “500” once. Replace that number with your desired character limit and save the file.

nano live/app/serializers/rest/instance_serializer.rb

FIND the line that reads:

:languages, :registrations,

ADD the following to that line:

:max_toot_chars

Pay attention if a comma is used at the end or not.

Scroll down to the end of the file until you reach the “private” section.

ADD

def max_toot_chars 
[the number of your desired character limit without the brackets]
end

EXAMPLE

def max_toot_chars 
5000
end

Go back to the live directory and enter the following commands, one by one:

RAILS_ENV=production bundle exec rails assets:precompile
exit
systemctl restart mastodon-sidekiq
systemctl reload mastodon-web
[OPTIONAL] systemctl restart mastodon-streaming

Done.

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Bot Block Party

A snippet from my .htaccess file to list the blocked bots:

RewriteCond %{HTTP_USER_AGENT} ^BlackWidow [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Bolt\ 0 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Bot\ mailto:craftbot\@yahoo\.com [NC,OR]
RewriteCond %{HTTP_USER_AGENT} CazoodleBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^ChinaClaw [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Custo [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Default\ Browser\ 0 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^DIIbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^DISCo [NC,OR]
RewriteCond %{HTTP_USER_AGENT} discobot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Download\ Demon [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^eCatch [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ecxi [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EirGrabber [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailCollector [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailSiphon [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EmailWolf [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Express\ WebPictures [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^ExtractorPro [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^EyeNetIE [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^FlashGet [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^GetRight [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^GetWeb! [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Go!Zilla [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Go-Ahead-Got-It [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^GrabNet [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Grafula [NC,OR]
RewriteCond %{HTTP_USER_AGENT} GT::WWW [NC,OR]
RewriteCond %{HTTP_USER_AGENT} heritrix [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^HMView [NC,OR]
RewriteCond %{HTTP_USER_AGENT} HTTP::Lite [NC,OR]
RewriteCond %{HTTP_USER_AGENT} HTTrack [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ia_archiver [NC,OR]
RewriteCond %{HTTP_USER_AGENT} IDBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} id-search [NC,OR]
RewriteCond %{HTTP_USER_AGENT} id-search\.org [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Image\ Stripper [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Image\ Sucker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Indy\ Library [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^InterGET [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Internet\ Ninja [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^InternetSeer\.com [NC,OR]
RewriteCond %{HTTP_USER_AGENT} IRLbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ISC\ Systems\ iRc\ Search\ 2\.1 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Java [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^JetCar [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^JOC\ Web\ Spider [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^larbin [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^LeechFTP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} libwww [NC,OR]
RewriteCond %{HTTP_USER_AGENT} libwww-perl [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Link [NC,OR]
RewriteCond %{HTTP_USER_AGENT} LinksManager.com_bot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} linkwalker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} lwp-trivial [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Mass\ Downloader [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Maxthon$ [NC,OR]
RewriteCond %{HTTP_USER_AGENT} MFC_Tear_Sample [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^microsoft\.url [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Microsoft\ URL\ Control [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^MIDown\ tool [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Mister\ PiX [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Missigua\ Locator [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Mozilla\.*Indy [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Mozilla\.*NEWT [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^MSFrontPage [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Navroad [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^NearSite [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^NetAnts [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^NetSpider [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Net\ Vampire [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^NetZIP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Nutch [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Octopus [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Explorer [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Offline\ Navigator [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^PageGrabber [NC,OR]
RewriteCond %{HTTP_USER_AGENT} panscient.com [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Papa\ Foto [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^pavuk [NC,OR]
RewriteCond %{HTTP_USER_AGENT} PECL::HTTP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^PeoplePal [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^pcBrowser [NC,OR]
RewriteCond %{HTTP_USER_AGENT} PHPCrawl [NC,OR]
RewriteCond %{HTTP_USER_AGENT} PleaseCrawl [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^psbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^RealDownload [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^ReGet [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Rippers\ 0 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} SBIder [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SeaMonkey$ [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^sitecheck\.internetseer\.com [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SiteSnagger [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SmartDownload [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Snoopy [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Steeler [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperBot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^SuperHTTP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Surfbot [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^tAkeOut [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Teleport\ Pro [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Toata\ dragostea\ mea\ pentru\ diavola [NC,OR]
RewriteCond %{HTTP_USER_AGENT} URI::Fetch [NC,OR]
RewriteCond %{HTTP_USER_AGENT} urllib [NC,OR]
RewriteCond %{HTTP_USER_AGENT} User-Agent [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^VoidEYE [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\ Image\ Collector [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Web\ Sucker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Web\ Sucker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} webalta [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebAuto [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^[Ww]eb[Bb]andit [NC,OR]
RewriteCond %{HTTP_USER_AGENT} WebCollage [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebCopier [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebFetch [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebGo\ IS [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebLeacher [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebReaper [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebSauger [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Website\ eXtractor [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Website\ Quester [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebStripper [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebWhacker [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WebZIP [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Wells\ Search\ II [NC,OR]
RewriteCond %{HTTP_USER_AGENT} WEP\ Search [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Wget [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Widow [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WWW-Mechanize [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^WWWOFFLE [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Xaldon\ WebSpider [NC,OR]
RewriteCond %{HTTP_USER_AGENT} zermelo [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Zeus [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ^Zeus\.*Webster [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ZyBorg [NC,OR]
RewriteCond %{HTTP_USER_AGENT} JSimplepieFactory [NC]
RewriteRule ^.* - [F,L]

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Crude solution to ban bots by their user-agent

Okay, this is a very crude way to block bots, spiders and crawlers by their user-agent, but so far, this has been very, very efficient.

Even when one chooses ” yes “, the question will be repeated. This is not a problem, because no one in their right mind is going to add “bot”, “spider” or “crawler” as their user-agent.

So here’s the PHP script that I rammed into a certain website to prevent it from being DDOSsed by (malicious) bots.

<?php

// CC-BY-NC (2023)
// Author: FoxSan - fox@cytag.nl
// This is a functional but dirty hack to block bots, spiders and indexers by looking at the HTTP USER AGENT.
// The form is, iirc, not even working, but that's fine if you only want human visitors.
// It can also throw a 403, but the effect is the same.

////////////////////////////////////////////////////////////////////////////////
// Emergency bypass
// goto end;
////////////////////////////////////////////////////////////////////////////////

// Function to check if the user agent appears to be a bot or spider.
// Enter the bots you would like to block in a list as shown below.
function isBot()
{
    $user_agent = $_SERVER["HTTP_USER_AGENT"];
    $bot_keywords = ['bytespider', 
                     'amazonbot', 
                     'MJ12bot', 
                     'YandexBot', 
                     'SemrushBot', 
                     'dotbot', 
                     'AspiegelBot',
                     'DataForSeoBot',
                     'DotBot',
                     'Pinterestbot',
                     'PetalBot',
                     'HeadlessChrome', 
                     'AhrefsBot'];

    foreach ($bot_keywords as $keyword) {
        if (stripos($user_agent, $keyword) !== false) {
            return true;
        }
    }

    return false;
}

// Check if the visitor is a bot or spider
if (isBot()) {
    // This visitor appears to be a bot or spider, so display a choice.
    // Check if the choice form is submitted
    if (isset($_POST["submit"])) {
        // Check the choice made by the visitor
        $choice = isset($_POST["choice"]) ? $_POST["choice"] : "";

        if ($choice === "yes") {
            // User selected "Yes," block access
            echo "Access denied. If you believe this is an error, please contact us by writing the word [MAILBOX] before the at sign, followed by [DOMAIN.TLD]";
        } elseif ($choice === "no") {
            // User selected "No," proceed to end
            goto end;
        }
    } else {
        // Output the message to the user and make the choice mandatory
        echo "Your user agent suggests you might be a bot, spider, or crawler. Are you one of these three?";

        // Output the radio button choices within a form
        echo '</p>
<form method="post" action="">';
        echo ' <label><input type="radio" name="choice" value="yes" required>Yes</label>';
        echo ' <label><input type="radio" name="choice" value="no">No</label>';
        echo ' <button type="submit" name="submit">Proceed</button>';
        echo "</form>
<p>";
    }

    // Exit to prevent further processing
    exit();
}
end:
// Original website code starts from here.
/////////////////////////////////////////////////////////////
?>

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CloudPanel website causing “Too many redirects”

I have installed CloudPanel and the new website caused a “Too many redirects” bug. This is because my SSL certificates are controlled by a proxy and this can cause some confusion between the systems. Also, because CloudPanel installs its own certificates.

This application can also install a Let’s Encrypt certificate, but this works only in more conventional systems. Mine is going through a DNS to a Proxy that listens to a certain IP address and that proxy redirects the request to a Virtual Machine on one of my servers.

So, here is my, probably unconventional method of disabling the SSL certificates on my CloudPanel installation:

  1. Open the CloudPanel controlpanel.
  2. Select the website you want to edit
  3. Choose the Vhost tab
  4. Change the following code into the new code:
server {
listen 80;
listen [::]:80;
listen 443 ssl http2;
listen [::]:443 ssl http2;
{{ssl_certificate_key}}
{{ssl_certificate}}
server_name subdomain.3xn.nl;
{{root}}

{{nginx_access_log}}
{{nginx_error_log}}

if ($scheme != "https") {
rewrite ^ https://$host$uri permanent;
}
server {
listen 80;
listen [::]:80;
# listen 443 ssl http2;
# listen [::]:443 ssl http2;
# {{ssl_certificate_key}}
# {{ssl_certificate}}
server_name subdomain.3xn.nl;
{{root}}

{{nginx_access_log}}
{{nginx_error_log}}

# if ($scheme != "https") {
# rewrite ^ https://$host$uri permanent;
# }

Done! Your website should now say “Hello world :-)”

You can see that I have disabled the listen to port 443, the certificate keys, the forced https and the path to the keys. I chose to switch off the forced HTTP, because my proxy is already taking care of that.

This post is subject to change, but this helps you along your way!

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