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    More on Abnormally High CPU Usage

    Scheduled Pinned Locked Moved General pfSense Questions
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    • CourierdogC Offline
      Courierdog @NOCling
      last edited by

      @nocling
      I also have to ask, what exactly are we changing, and in what installed package is the change being applied to.
      Now, I also have to ask as I am very new to pfsense, why are we making this change and what is it intended change to the application intended to do.

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      • N Offline
        NOCling
        last edited by

        All information in the redmine, klick the link.

        Netgate 6100 & Netgate 2100

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        • S Offline
          SteveITS Rebel Alliance @Courierdog
          last edited by

          @courierdog said in More on Abnormally High CPU Usage:

          This programming change is performed from the console, rather than from the Dashboard GUI, correct.

          In the GUI you can use Diagnostics/Edit File.

          Per the redmine, there was a logging change in 22.05 which created a bug in pfB and that is the fix, since pfB hasn't been updated since then.

          Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
          When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
          Upvote ๐Ÿ‘ helpful posts!

          CourierdogC 1 Reply Last reply Reply Quote 0
          • CourierdogC Offline
            Courierdog @SteveITS
            last edited by

            @steveits
            Steve, I have to be very careful here as I said I am very new to pfsense.
            Diagnostics / Edit File
            Advanced Users Only
            The capabilities offered here can be dangerous.
            No support is available. Use them at your own risk!

            Save / Load a File from the Filesystem

            (Path to file to be edited) ..................................................
            Load - Browse - Save - GoTo Line #

            Sorry, but in my case I require exact instructions, so I can write it down, save it for potential future use, or to correct my mistakes.

            Thanks for being patient with a newbie

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            • S Offline
              SteveITS Rebel Alliance @Courierdog
              last edited by

              @courierdog
              in "file to be edited" enter /usr/local/pkg/pfblockerng/pfblockerng.inc
              click Load
              next to "go to line #" enter 4139 and press that "go to line #" button
              change the line as noted above
              click Save

              I believe at that point you should Diagnostics/Reboot to ensure the change has been loaded. Not sure that's required but it won't hurt.

              https://docs.netgate.com/pfsense/en/latest/diagnostics/edit-file.html

              Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
              When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
              Upvote ๐Ÿ‘ helpful posts!

              CourierdogC 2 Replies Last reply Reply Quote 0
              • CourierdogC Offline
                Courierdog @SteveITS
                last edited by

                @steveits
                Steve
                I followed your instructions however line 4139 does not have anything close to the previous code
                as noted bt NOCling https://redmine.pfsense.org/issues/13154

                File: /usr/local/pkg/pfblockerng/pfblockerng.inc
                Line: 4139
                From:
                $r = explode(')', $result, 2);
                To:
                $r = explode(' ', $result, 2);

                $r = explode(')', $result, 2);

                this coding is Not found plus or minus 50 lines in my version (22.05)

                Perhaps if you gave me the code line 10 line before and 10 line after the desired code I may be able to scan and locate the desired code of r = explode

                Or the Code sequence that this small change is part of.

                I will not just drop the suggested code anywhere as the instructions are very specific:
                FROM - $r = explode(')', $result, 2);
                TO - $r = explode(' ', $result, 2);

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                • N Offline
                  NOCling
                  last edited by

                  My 2100:
                  5ab7d838-a4f0-48e8-a7e5-373da7a05a94-image.png

                  Its there.

                  22.05-RELEASE (arm64)
                  pfBlockerNG-devel 3.1.0_4

                  Netgate 6100 & Netgate 2100

                  CourierdogC 1 Reply Last reply Reply Quote 0
                  • S Offline
                    SteveITS Rebel Alliance @Courierdog
                    last edited by

                    @courierdog What version of pfBlockerNG-devel do you have? 3.1.0_4 is the latest.

                    $rule_list		= array();
                    $rule_list['id']	= array();
                    $rule_list['other']	= array();
                    $rule_list['int']	= array();
                    
                    exec("{$pfb['pfctl']} -vvsr 2>&1", $results);
                    if (!empty($results)) {
                    	foreach ($results as $result) {
                    		if (substr($result, 0, 1) == '@') {
                    
                    			$r = explode(')', $result, 2);
                    
                    			// pfSense > v2.6 uses an 'ridentifier' string
                    			if (strpos($result, 'ridentifier') != FALSE) {
                    				$id = trim(strstr(strstr($r[1], 'ridentifier', FALSE), ' ', FALSE));
                    			} else {
                    				$id = ltrim(strstr($r[0], '(', FALSE), '(');
                    			}
                    
                    			// Find rule descriptions and type for pfBlockerNG Tracker IDs
                    			if (strpos($r[1], ' <pfB_') !== FALSE) {
                    				$descr	= ltrim(stristr($r[1], '<pfb_', FALSE), '<');
                    				$descr	= strstr($descr, ':', TRUE);
                    				$type	= strstr(trim($r[1]), ' ', TRUE);
                    				if ($type == 'match') {
                    					$type = 'unkn(%u)';
                    				}
                    

                    Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                    When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
                    Upvote ๐Ÿ‘ helpful posts!

                    CourierdogC 2 Replies Last reply Reply Quote 0
                    • CourierdogC Offline
                      Courierdog @SteveITS
                      last edited by

                      @steveits
                      pfBlockerNG-devel net 3.1.0_4

                      And I am not finding the coding you are listing.

                      This is beginning to scare the life out of me.
                      pfsense was recommend to be as a solution to all the crap I have been going through.
                      It certainly has removed 99.9% of the issues.
                      I noticed that I was getting notifications from MaxMind stating I required a license.
                      In another blog it suggested an update to the pfBlocker which I did, and it worked for about 30 minutes and then I noticed the increased CPU Usage.
                      Which has alarmed me, as I do not want to be running the CPU at excessive usage and possible risk overheating the device.
                      It was that the other day when I logged in I noticed the CPU usage had gone totally mad as it has bee typically less than ten with the occasional burst to 40% for a second.

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                      • CourierdogC Offline
                        Courierdog @SteveITS
                        last edited by

                        @steveits
                        I now notice the following notifications at the bottom of the page
                        = Update = Current

                        = Remove = Information = Reinstall

                        Newer version available

                        Package is configured but not (fully) installed or deprecated.

                        I have been working my way through the book SAFER @ Home by Michael Lines.
                        This is where he suggested I use PfBlocker as a means to block the obvious CyberAttack avenues.
                        So my setup ha only gone as far as he outlines in his book.

                        S stephenw10S 2 Replies Last reply Reply Quote 0
                        • S Offline
                          SteveITS Rebel Alliance @Courierdog
                          last edited by SteveITS

                          @courierdog The package page can be a bit confusing at first. The bottom is just a legend, but it doesn't say it's a legend. On this one the system patches package has an upgrade available, the others do not:
                          666b4cae-a099-461b-bf4b-35150787993d-image.png

                          re: file, you have the right file? Did you CTRL+F it? Once I typo'd the "4139" and got myself confused.

                          Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                          When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
                          Upvote ๐Ÿ‘ helpful posts!

                          1 Reply Last reply Reply Quote 1
                          • stephenw10S Offline
                            stephenw10 Netgate Administrator @Courierdog
                            last edited by

                            @courierdog said in More on Abnormally High CPU Usage:

                            I now notice the following notifications at the bottom of the page
                            = Update = Current
                            = Remove = Information = Reinstall
                            Newer version available
                            Package is configured but not (fully) installed or deprecated.

                            That's just the key to the list of installed packages.

                            I assume you are seeing the file existing?

                            CourierdogC S 2 Replies Last reply Reply Quote 0
                            • CourierdogC Offline
                              Courierdog @stephenw10
                              last edited by

                              @steveits
                              once I enter and load the file I receive the following:
                              <?php
                              /*

                              • pfblockerng.inc
                              • part of pfSense (https://www.pfsense.org)
                              • Copyright (c) 2015-2022 Rubicon Communications, LLC (Netgate)
                              • Copyright (c) 2015-2022 BBcan177@gmail.com
                              • All rights reserved.

                              This tells me I have loaded the pfblockerng
                              code
                              I enter the Line Number 4139 and press ENTER
                              I arrive at the following:
                              // Create update file indicator for update process
                              touch("{$pfb['dbdir']}/{$filename}/{$filename}.update");
                              } else {
                              pfb_logger('.', 1);
                              exec("/usr/bin/gunzip -c {$file_dwn}.raw > {$file_dwn}.orig", $output, $retval);
                              }
                              }
                              elseif ($file_type == 'application/x-bzip2') {
                              pfb_logger('.', 1);
                              exec("/usr/bin/bzip2 -dkc {$file_dwn}.raw > {$file_dwn}.orig", $output, $retval);
                              }
                              elseif ($file_type == 'application/zip') {

                              		// Extras - MaxMind/TOP1M downloads
                              		if ($type == 'geoip' || $type == 'top1m') {
                              			// Determine if Zip contains multiple files
                              			exec("/usr/bin/tar -tf {$file_dwn}.raw 2>&1", $archive_count, $retval);
                              			if ($archive_count[0] == 'tar: Failed to set default locale') {
                              				unset($archive_count[0]);
                              
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                              • S Offline
                                SteveITS Rebel Alliance @stephenw10
                                last edited by

                                You could always remove and reinstall the package. By default it keeps its settings.

                                CTRL+F should find "$r = explode(')', $result, 2);" only once. It's several scrolls/pages below the code you posted.

                                Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                                When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
                                Upvote ๐Ÿ‘ helpful posts!

                                CourierdogC 1 Reply Last reply Reply Quote 0
                                • CourierdogC Offline
                                  Courierdog @SteveITS
                                  last edited by

                                  @steveits
                                  Steve, I was just going to say the code you listed is several pages below where I came up at 4139 on my computer.
                                  I use a MacBook Pro
                                  And I stand corrected when I enter the page #4139 I hit enter (return)
                                  I will now go to the file as you described and wait for further instructions.

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                                  • CourierdogC Offline
                                    Courierdog @NOCling
                                    last edited by

                                    @nocling
                                    OK
                                    I finally did find the files as you and Steve posted.
                                    They are several pages below where I landed after entering 4139 and pressing enter.

                                    The FROM and TO that has been suggested.
                                    If I do this from the GUI
                                    FROM $r = explode(')', $result, 2);
                                    TO. $r = explode(' ', $result, 2);

                                    Is this a matter of typing over the existing code as displayed and pressing SAVE

                                    Or is there something else I must do.

                                    I have never edited the pfsense code directly only configured the install set up from the GUI

                                    S 1 Reply Last reply Reply Quote 0
                                    • S Offline
                                      SteveITS Rebel Alliance @Courierdog
                                      last edited by

                                      @courierdog said in More on Abnormally High CPU Usage:

                                      Is this a matter of typing over the existing code as displayed and pressing SAVE

                                      Yes.

                                      If it breaks, edit the file back again, or just uninstall/reinstall the package to get the original file. (you could, say, copy/paste the entire field into a file on your PC)

                                      Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                                      When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
                                      Upvote ๐Ÿ‘ helpful posts!

                                      CourierdogC 1 Reply Last reply Reply Quote 0
                                      • CourierdogC Offline
                                        Courierdog @SteveITS
                                        last edited by

                                        @steveits
                                        Steve:
                                        Thanks, I entered the code over the existing code, pressed save.
                                        Received the notification the file was saved successfully.

                                        Diagnostics -> Reboot

                                        Login.

                                        For the first few minutes the CPU Usage was 20-40%
                                        Now it is back at 99-100%
                                        I will recheck the code to verify if it was changed.

                                        The current code

                                        if (substr($result, 0, 1) == '@') {

                                        			$r = explode('', $result, 2);
                                        
                                        			// pfSense > v2.6 uses an 'ridentifier' string
                                        

                                        This is as I was instructed except I expected a space between the ' ',

                                        So any more suggestions?

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                                        • S Offline
                                          SteveITS Rebel Alliance @Courierdog
                                          last edited by

                                          @courierdog said in More on Abnormally High CPU Usage:

                                          $r = explode('', $result, 2);

                                          It should be a space:

                                          $r = explode(' ', $result, 2);

                                          Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
                                          When upgrading, allow 10-15 minutes to reboot, or more depending on packages, and device or disk speed.
                                          Upvote ๐Ÿ‘ helpful posts!

                                          CourierdogC 1 Reply Last reply Reply Quote 0
                                          • CourierdogC Offline
                                            Courierdog @SteveITS
                                            last edited by

                                            @steveits
                                            The edited text code had one space between the two '

                                            %(#000000)[Since it was still running CPU usage of 99-100% I decided to add a second space.]

                                            Result after 15 minutes of operation
                                            CPU Usage = 14-40%

                                            While not back to the 5-26% where was running before I began to get notification of a required License for MaxMind.

                                            S 1 Reply Last reply Reply Quote 0
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