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    Individual message instead of 1x1 pixel

    Scheduled Pinned Locked Moved pfBlockerNG
    19 Posts 10 Posters 6.0k Views
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    • E
      esquire1968
      last edited by

      Hi!

      When a user tried to Access a blocked web-site, he gets a blank screen. How can I change this to a simple text?

      Thanks!

      Thomas

      1 Reply Last reply Reply Quote 1
      • J
        javcasta
        last edited by

        Hi.

        Try it this.

        At file: /usr/local/www/pfblockerng/www/index.php

        comment the line

        //echo base64_decode('R0lGODlhAQABAJAAAP8AAAAAACH5BAUQAAAALAAAAAABAAEAAAICBAEAOw==');

        And put other gif image encode at bas64. For example, my: /usr/local/www/pfblockerng/www/index.php

        code /usr/local/www/pfblockerng/www/index.php

        
/*
	index.php

	pfBlockerNG (DNSBL)
	Copyright (c) 2015-2016 BBcan177@gmail.com
	All rights reserved.
*/
header("Cache-Control: private, no-store, no-cache, must-revalidate, max-age=0");
header("Cache-Control: post-check=0, pre-check=0", false);
header("Pragma: no-cache");
header("Expires: Sat, 26 Jul 2014 05:00:00 GMT");
header("Content-Type: image/gif");
//echo base64_decode('R0lGODlhAQABAJAAAP8AAAAAACH5BAUQAAAALAAAAAABAAEAAAICBAEAOw==');
echo base64_decode('R0lGODlh8wD0APcAAO7T060yMr5dXeS7u8Rra/Xl5ct+frE8PPju7vHc3OfDw5YAAMu8u97e3pEA
ANTU1KtFQ96srKEVFc2CgtDa2uGzs7tVVczKys7W1+rLy9jY2Ofn58bGxtWVlaYiIvDZ2dqioszO
zvz4+NDe3pQAAMasq6orK/v6+qo7Ovv19e7u7sOcm8m0s83Q0LV1dbdKStGMjJ8REdDQ0OvNzbVc
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4Gbf4hw8AQrQRS6qGA5E6AKkUINwNA0vwIjnQ/NoLk5dowke4CayFjCPdFBAGZzChgaW4FGPluML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');

// Record DNSBL HTTP Alert to logfile
$datereq = date('M d H:i:s', time());
$req_agent = str_replace(',', '', "{$_SERVER['HTTP_REFERER']} | {$_SERVER['REQUEST_URI']} | {$_SERVER['HTTP_USER_AGENT']}");
$log = htmlspecialchars("DNSBL Reject,{$datereq},{$_SERVER['HTTP_HOST']},{$_SERVER['REMOTE_ADDR']},{$req_agent}\n");
if (!empty($log)) {
	@file_put_contents('/var/log/pfblockerng/dnsbl.log', "{$log}", FILE_APPEND | LOCK_EX);
}

// Query DNSBL Alias for Domain List.
$query = str_replace('.', '\.', htmlspecialchars($_SERVER['HTTP_HOST']));
exec("/usr/bin/grep -l ' \"{$query} 60 IN A' /var/db/pfblockerng/dnsblalias/*", $match);
$pfb_query = strstr($match[0], 'DNSBL', FALSE);

// Query for a TLD Block
if (empty($pfb_query)) {
	$idparts	= explode('.', $query);
	$idcnt		= (count($idparts) -1);

	for ($i=1; $i <= $idcnt; $i++) {
		$d_query = implode('.', array_slice($idparts, -$i, $i, TRUE));
		exec("/usr/bin/grep -l '^{$d_query}$' /var/db/pfblockerng/dnsblalias/DNSBL_TLD", $match);

		if (!empty($match[0])) {
			$pfb_query = 'DNSBL_TLD';
			break;
		}
	}
}

if (!empty($pfb_query)) {
	// Increment DNSBL Alias Counter
	$dnsbl_info = '/var/db/pfblockerng/dnsbl_info';
	if (($handle = @fopen("{$dnsbl_info}", 'r')) !== FALSE) {
		flock($handle, LOCK_EX);
		$pfb_output = @fopen("{$dnsbl_info}.bk", 'w');
		flock($pfb_output, LOCK_EX);

		// Find line with corresponding DNSBL Aliasname
		while (($line = @fgetcsv($handle)) !== FALSE) {
			if ($line[0] == $pfb_query) {
				$line[3] += 1;
			}
			@fputcsv($pfb_output, $line);
		}

		@fclose($pfb_output);
		@fclose($handle);
		@rename("{$dnsbl_info}.bk", "{$dnsbl_info}");
	}
}
?>

        Regards

        Javier Castañón
        Técnico de comunicaciones, soporte y sistemas.

        Mi web: https://javcasta.com/

        Soporte scripting/pfSense https://javcasta.com/soporte/

        1 Reply Last reply Reply Quote 1
        • E
          esquire1968
          last edited by

          Thanks!

          It works great!

          Regards,
          Thomas

          1 Reply Last reply Reply Quote 0
          • BBcan177B
            BBcan177 Moderator
            last edited by

            Keep in mind that this will also show that image for all ADvertisements in the page… Somewhat not practical....  I have in mind to add an option to allow customization of the image depending on the DNSBL Group...

            "Experience is something you don't get until just after you need it."

            Website: http://pfBlockerNG.com
            Twitter: @BBcan177  #pfBlockerNG
            Reddit: https://www.reddit.com/r/pfBlockerNG/new/

            1 Reply Last reply Reply Quote 0
            • J
              javcasta
              last edited by

              Hi.

              So it's a 1x1 gif (for advs, only one pixel, for not disturb), but if the user knows it is an administrative block will not make complaint to the IT department  :)

              Regards.

              Javier Castañón
              Técnico de comunicaciones, soporte y sistemas.

              Mi web: https://javcasta.com/

              Soporte scripting/pfSense https://javcasta.com/soporte/

              1 Reply Last reply Reply Quote 0
              • E
                esquire1968
                last edited by

                Hi!

                @BBcan77: As you worte, I have now a lot of "Forbidden"-Pics on some web-sites instead of blank pics. This looks a little bit confusing. It would be a great improvement to differentiate between a full blocked web-site and an adv. as an element of a site.

                Best regards,
                Thomas

                1 Reply Last reply Reply Quote 0
                • BBcan177B
                  BBcan177 Moderator
                  last edited by

                  DNSBL will block the DNS request. It can't manipulate the browser page. In future, I plan to add the option for the user to define what gets displayed when DNSBL blocks a domain. So any domain listed in a particular group can be configured accordingly.

                  "Experience is something you don't get until just after you need it."

                  Website: http://pfBlockerNG.com
                  Twitter: @BBcan177  #pfBlockerNG
                  Reddit: https://www.reddit.com/r/pfBlockerNG/new/

                  1 Reply Last reply Reply Quote 1
                  • J
                    javcasta
                    last edited by

                    Hi.

                    Maybe in the next pfBlockerNG release?
                    We are waiting, great work!! :)

                    Regards.

                    Javier Castañón
                    Técnico de comunicaciones, soporte y sistemas.

                    Mi web: https://javcasta.com/

                    Soporte scripting/pfSense https://javcasta.com/soporte/

                    1 Reply Last reply Reply Quote 0
                    • B
                      BoxMacNCheese
                      last edited by

                      @BBcan177:

                      In future, I plan to add the option for the user to define what gets displayed when DNSBL blocks a domain. So any domain listed in a particular group can be configured accordingly.

                      This would be a fantastic feature and would help address some of my other issues. I appreciate all of the work that you have put into this great package!

                      1 Reply Last reply Reply Quote 0
                      • F
                        frankvh
                        last edited by

                        @BBcan177:

                        DNSBL will block the DNS request. It can't manipulate the browser page. In future, I plan to add the option for the user to define what gets displayed when DNSBL blocks a domain. So any domain listed in a particular group can be configured accordingly.

                        pfBlockerNG is wonderful. Adding this would make it even better. Sure it would be great for making it clear to users why they can't see something. But it will also be great for troubleshooting. I've had to whitelist a few domains, and each time it's been tricky to work out exactly what was going on. One example was a popular retailer (REI.com) and although their products were showing up, user reviews of those products were not. Turns out REI links to a different server for handling their product reviews, and that reviews server was being blocked. Having an easy way to replace the (invisible) 1x1 gif with a more visible "site blocked" image (or similar) would make that kind of troubleshooting go faster.

                        1 Reply Last reply Reply Quote 0
                        • M
                          MrGlasspoole
                          last edited by

                          Hm, maybe some SVG that scales…

                          As somebody who comes from uBlock I'm not really understanding how stuff here works.
                          But i see now ads on YouTube i never saw before. There are not loaded but it shows:

                          Your connection is not secure.
                          The owner of googleads.g.doubleclick.net has configured their website improperly.

                          1 Reply Last reply Reply Quote 0
                          • G
                            Gerard64
                            last edited by

                            @BBcan177:

                            DNSBL will block the DNS request. It can't manipulate the browser page. In future, I plan to add the option for the user to define what gets displayed when DNSBL blocks a domain. So any domain listed in a particular group can be configured accordingly.

                            Is this added in the latest dnsbl version?

                            1 Reply Last reply Reply Quote 0
                            • BBcan177B
                              BBcan177 Moderator
                              last edited by

                              Yes it will be :)

                              "Experience is something you don't get until just after you need it."

                              Website: http://pfBlockerNG.com
                              Twitter: @BBcan177  #pfBlockerNG
                              Reddit: https://www.reddit.com/r/pfBlockerNG/new/

                              1 Reply Last reply Reply Quote 0
                              • B
                                BeerCan
                                last edited by

                                Thank you, I really need this feature :)

                                I am going to send a donation for all your work.  :)  Not as much as you deserve but it is what I can get approved.

                                1 Reply Last reply Reply Quote 0
                                • BBcan177B
                                  BBcan177 Moderator
                                  last edited by

                                  @BeerCan:

                                  Thank you, I really need this feature :)

                                  I am going to send a donation for all your work.  :)  Not as much as you deserve but it is what I can get approved.

                                  Here is a screenshot of the next release:
                                  https://www.patreon.com/posts/dnsbl-default-15734180

                                  Thanks for the support! Its very appreciated!

                                  "Experience is something you don't get until just after you need it."

                                  Website: http://pfBlockerNG.com
                                  Twitter: @BBcan177  #pfBlockerNG
                                  Reddit: https://www.reddit.com/r/pfBlockerNG/new/

                                  1 Reply Last reply Reply Quote 0
                                  • wgstarksW
                                    wgstarks
                                    last edited by

                                    @BBcan177:

                                    @BeerCan:

                                    Thank you, I really need this feature :)

                                    I am going to send a donation for all your work.  :)  Not as much as you deserve but it is what I can get approved.

                                    Here is a screenshot of the next release:
                                    https://www.patreon.com/posts/dnsbl-default-15734180

                                    Thanks for the support! Its very appreciated!

                                    Is this feature now working?

                                    I installed 2.1.2_2 a couple of days ago and keep seeing this in "alerts"-

                                    I generated this alert by browsing to the DNSBL VIP but the browser still just shows a blank page.

                                    Box: SG-4200

                                    1 Reply Last reply Reply Quote 0
                                    • BBcan177B
                                      BBcan177 Moderator
                                      last edited by

                                      This feature has not been released yet as its part of the next release.

                                      "Experience is something you don't get until just after you need it."

                                      Website: http://pfBlockerNG.com
                                      Twitter: @BBcan177  #pfBlockerNG
                                      Reddit: https://www.reddit.com/r/pfBlockerNG/new/

                                      1 Reply Last reply Reply Quote 0
                                      • T
                                        ttsumak
                                        last edited by

                                        @BBcan177:

                                        This feature has not been released yet as its part of the next release.

                                        Any idea when it will be released?

                                        1 Reply Last reply Reply Quote 0
                                        • G
                                          Gerard64
                                          last edited by

                                          What version of DNSBL will this be implemented?

                                          1 Reply Last reply Reply Quote 0
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