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Use serial number as hostname in Fog

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  • G
    george1421 Moderator @Xinzo
    last edited by Aug 17, 2022, 2:32 PM

    @xinzo Sorry it was late in the day yesterday and I was only running on a few brain cells.

    OK for #3 yes fog.man.reg is the manual registration script. That script is actually embedded into the FOS Linux OS that gets transferred to the target computer during imaging. But don’t worry about that. I have a tutorial here that kind of is the answer: https://forums.fogproject.org/topic/14278/creating-custom-hostname-default-for-fog-man-reg The script fog.customhostname is actually where most of the magic happens. There is more in this script than what you need because it first tries to determine where the computer is being installed at and prepends the site LUN code to the system name, second it also determines if the computer is a laptop or desktop and finally it reads the chassis serial number and then adds all of the strings together to make the host_default_name variable. That value then gets passed back to fog.man.reg to repopulate the system name in the field. You can still change it while you are in registration mode. But the default will be set to the formula I provided above. For your use case all you need to change is one line.

    this:

    # default host name is returned to the fog.man.reg script
    host_default_name="$zsitecode$zchtype$zserialno";
    

    to this

    # default host name is returned to the fog.man.reg script
    host_default_name="$zserialno";
    

    As for #2 you can find out more about that while reviewing these tutorials

    https://forums.fogproject.org/topic/11126/using-fog-postinstall-scripts-for-windows-driver-injection-2017-ed
    https://forums.fogproject.org/topic/8889/fog-post-install-script-for-win-driver-injection/2

    Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

    X 1 Reply Last reply Aug 19, 2022, 9:51 AM Reply Quote 0
    • X
      Xinzo @george1421
      last edited by Aug 19, 2022, 9:51 AM

      @george1421

      I’ve try the #3 it works !
      Thanks a lot 👏
      If I want to do this with Quick registration how to “fix” the fog.auto.reg ?

      G 1 Reply Last reply Aug 19, 2022, 2:40 PM Reply Quote 0
      • G
        george1421 Moderator @Xinzo
        last edited by Aug 19, 2022, 2:40 PM

        @xinzo I have not looked into it but in theory its possible.

        If we look at fog.man.reg: https://github.com/FOGProject/fos/blob/master/Buildroot/board/FOG/FOS/rootfs_overlay/bin/fog.man.reg at line 342 we see this registration.

        while [[ -z $res ]]; do
            res=$(curl -Lks --data "sysuuid=${sysuuid}&mac=$mac&advanced=$(echo -n 1 | base64)&host=$host&imageid=$imageid&primaryuser=$primaryuser&other1=$other1&other2=$other2&doimage=$realdoimage&doad=$blDoAD&location=$location64&username=$user64&groupid=$group64&snapinid=$snapin64&productKey=$productKey" ${web}service/auto.register.php 2>/dev/null)
            echo "$res"
            usleep 2000000
        done
        

        If we look at fogl.auto.reg in line 76 we see this call for registration.

        res=$(curl -Lks --data "sysserial=${sysserial}&sysuuid=${sysuuid}&mac=$mac&productKey=${productKey}" ${web}service/auto.register.php 2>/dev/null)
        

        It looks like both are calling the same script on the fog server.

        So one might wonder what would happen if we just passed the host variable to that script?

        making it look like this:

        res=$(curl -Lks --data "host=$host_default_name&sysserial=${sysserial}&sysuuid=${sysuuid}&mac=$mac&productKey=${productKey}" ${web}service/auto.register.php 2>/dev/null)
        

        Then of course we need to set the variable host_default_name to something using our fog.customhostname script.

        Where we might want to call it here before the host is registered

        productKey=""
        host_default_name=""
        
        if [[ -f "/bin/fog.customhostname" ]]; then
            . /bin/fog.customhostname
        fi
        
        if [[ -f /sys/firmware/acpi/tables/MSDM ]]; then
            productKey=$(tail -c+57 /sys/firmware/acpi/tables/MSDM | base64)
        fi
        

        Understand I have not tested or debugged this at all. I only glued some code together to make spaghetti.

        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

        X 1 Reply Last reply Aug 22, 2022, 2:03 PM Reply Quote 0
        • X
          Xinzo @george1421
          last edited by Aug 22, 2022, 2:03 PM

          @george1421
          I’ve try your solution but it’s not working.
          I can’t understand why the fog.customhostname only send the host_default_name to the fog.man.reg
          Your proposition seems good to me. Maybe the host is not recognize for the quick registraton ?
          Thanks for your help

          G 1 Reply Last reply Aug 22, 2022, 2:50 PM Reply Quote 0
          • G
            george1421 Moderator @Xinzo
            last edited by Aug 22, 2022, 2:50 PM

            @xinzo I did see a small type-o in what I told you.

            "host=$host_default_name&sysserial=${sysserial}&sysuuid=${sysuuid}
            

            should have been

            "host=${host_default_name}&sysserial=${sysserial}&sysuuid=${sysuuid}
            

            Note the appropriate use of the curly braces.

            What is it giving you for a host name a mac address or a sequential number like if you enabled auto numbering?

            I did give you a caveat that I did no debugging or testing. This might not work, but once we know what its doing we can look.

            Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

            X 1 Reply Last reply Aug 22, 2022, 3:05 PM Reply Quote 0
            • X
              Xinzo @george1421
              last edited by Aug 22, 2022, 3:05 PM

              @george1421 I did it too but nothing change.
              I have the auto numbering as hostname (PC-*)

              @george1421 said in Use serial number as hostname in Fog:

              I did give you a caveat that I did no debugging or testing. This might not work, but once we know what its doing we can look.

              Yes no problem, always a pleasure to fix some issue and (try to) add some feature to this project. 😊

              G 1 Reply Last reply Aug 22, 2022, 5:04 PM Reply Quote 0
              • G
                george1421 Moderator @Xinzo
                last edited by george1421 Aug 22, 2022, 11:39 AM Aug 22, 2022, 5:04 PM

                @xinzo Looking into the FOG programming code. I see here: https://github.com/FOGProject/fogproject/blob/171d63724131c396029992730660497d48410842/packages/web/lib/reg-task/registration.class.php#L328

                OK lets hack our way into a possible solution. Again the caveat here is I have not tried this so I have no clue if it works.

                But at this location: https://github.com/FOGProject/fogproject/blob/171d63724131c396029992730660497d48410842/packages/web/lib/reg-task/registration.class.php#L328 Line #328 there is this section of code.

                            $autoRegSysName = trim($autoRegSysName);
                            if (strtoupper($autoRegSysName) == 'MAC') {
                                $hostname = $this->macsimple;
                            } else {
                                $hostname = $autoRegSysName;
                            }
                            $hostname = trim($hostname);
                            if (!self::getClass('Host')->isHostnameSafe($hostname)) {
                

                I wonder if we can tweak it to look like this

                            $autoRegSysName = trim($autoRegSysName);
                            if (strtoupper($autoRegSysName) == 'MAC') {
                                $hostname = $this->macsimple;
                            } elseif (strtoupper($autoRegSysName) == 'SYSSERIAL') {
                                $hostname = base64_decode($_REQUEST['host']);
                            } else {
                                $hostname = $autoRegSysName;
                            }
                            $hostname = trim($hostname);
                            if (!self::getClass('Host')->isHostnameSafe($hostname)) {
                

                Inserting this code

                            } elseif (strtoupper($autoRegSysName) == 'SYSSERIAL') {
                                $hostname = base64_decode($_REQUEST['host']);
                

                The file can be found here.
                /var/www/html/fog/fog/lib/reg-task/registration.class.php

                So now if we turn on autoprop and set sys name to SYSSERIAL would it insert the hostname value we configured in the fog.auto.reg file?

                sysserial.png

                Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                X 1 Reply Last reply Aug 23, 2022, 10:25 AM Reply Quote 0
                • X
                  Xinzo @george1421
                  last edited by Xinzo Aug 23, 2022, 4:26 AM Aug 23, 2022, 10:25 AM

                  @george1421
                  I have the MAC adress of the computer instead of the ‘PC-*’.
                  The SYSSERIAL is defined somewhere in the php script ?

                  G 1 Reply Last reply Aug 23, 2022, 10:42 AM Reply Quote 0
                  • G
                    george1421 Moderator @Xinzo
                    last edited by Aug 23, 2022, 10:42 AM

                    @xinzo said in Use serial number as hostname in Fog:

                    The SYSSERIAL is defined somewhere in the php script ?

                    I made that variable up for the hack to the script.

                    In this specific code section I look for the word SYSSERIAL

                                } elseif (strtoupper($autoRegSysName) == 'SYSSERIAL') {
                                    $hostname = base64_decode($_REQUEST['host']);
                    

                    So if the autoRegSysName (the field where you have MAC now or PC*) equals SYSSERIAL then remember in the previous steps you added the value host to the curl call in fog.auto.reg?, It will take the value of host and assign it to the variable $hostname. Its a similar concept to the line above that looks for the word MAC and then assigns the mac address of the target computer to the $hostname variable. In the fog.auto.reg file you adjusted earlier the $host variable is created by the fog.customhost script, right. Its a bit of a complicated path but when all of the bits are in place it should give you the autonaming function as with the full registration process.

                    Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                    X 1 Reply Last reply Aug 23, 2022, 10:56 AM Reply Quote 0
                    • X
                      Xinzo @george1421
                      last edited by Aug 23, 2022, 10:56 AM

                      @george1421
                      Okay I understand.
                      In my fog.auto.reg the curl is sending to this script :

                      ${web}service/auto.register.php 2>/dev/null)
                      Maybe there’s something to do with this file ?

                      G 1 Reply Last reply Aug 23, 2022, 11:45 AM Reply Quote 0
                      • G
                        george1421 Moderator @Xinzo
                        last edited by Aug 23, 2022, 11:45 AM

                        @xinzo said in Use serial number as hostname in Fog:

                        auto.register.php

                        Yes that is the file you will edit on the FOG server itself. It should be in the path I provided previously. Now that I think about it I might want to change the auto prop value to CUSTOM instead of SYSSERIAL and then make a write up on this for those fog admins that want to create a custom auto name value. I always use the full registration on my campus so I never thought about the auto naming process. I think you are onto something that will be useful to other fog admins.

                        Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                        X 1 Reply Last reply Aug 23, 2022, 3:37 PM Reply Quote 0
                        • X
                          Xinzo @george1421
                          last edited by Aug 23, 2022, 3:37 PM

                          @george1421
                          I’ve done it !
                          The “old” fog.auto.reg is :

                          if [[ -f "/bin/fog.customhostname" ]]; then
                              . /bin/fog.customhostname
                          fi
                          
                          if [[ -f /sys/firmware/acpi/tables/MSDM ]]; then
                              productKey=$(tail -c+57 /sys/firmware/acpi/tables/MSDM | base64)
                          fi
                          while [[ -z $res ]]; do
                              res=$(curl -Lks --data "host=${host_default_name}&sysserial=${sysserial}&sysuuid=${sysuuid}&mac=$mac&productKey=${productKey}" ${web}service/auto.register.php 2>/dev/null)
                          

                          Here is the trick :

                          while [[ -z $res ]]; do
                                  host=${host_default_name}
                                  host=$(echo $host | base64)
                                  res=$(curl -Lks --data "host=$host&sysserial=${sysserial}&sysuuid=${sysuuid}&mac=$mac&productKey=${productKey}" ${web}service/auto.register.php 2>/dev/null)
                          

                          We have to convert to base64 and then send to the script. It works like a charm.
                          I suceeded when I inspected the fog.man.reg.fix Here is what helped me :

                          while [[ $res != "#!ok" ]]; do
                              if [[ $host_default_name != "" ]]; then
                                  read -p " * Enter hostname for this computer [$host_default_name]: " host
                              else
                                  read -p " * Enter hostname for this computer: " host
                              fi
                              host=${host:-$host_default_name}
                              if [[ ${#host} -gt 15 ]]; then
                                  host=${host:0:15}
                                  echo " | Truncated to 15 characters: $host"
                                  usleep 2000000
                              fi
                              host=$(echo $host | base64)
                              res=$(curl -Lks --data "host=$host" ${web}service/hostnameloop.php 2>/dev/null)
                              [[ $res != "#!ok" ]] && echo "$res"
                          
                          
                          done
                          

                          Those line
                          host=${host:-$host_default_name}
                          host=$(echo $host | base64)
                          res=$(curl -Lks --data "host=$host" ${web}service/hostnameloop.php 2>/dev/null)

                          Thank you very much for your help 😁

                          G 1 Reply Last reply Aug 23, 2022, 3:53 PM Reply Quote 1
                          • G
                            george1421 Moderator @Xinzo
                            last edited by Aug 23, 2022, 3:53 PM

                            @xinzo well done! Now just make sure you backup everything since you hacked the fog environment. That way when/if you upgrade you don’t lose your hacks. But really nice. I’m really more than willing to help someone help themselves success with FOG. This way you can get exactly what works for your situation.

                            Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                            X 1 Reply Last reply Aug 23, 2022, 4:31 PM Reply Quote 0
                            • X
                              Xinzo @george1421
                              last edited by Aug 23, 2022, 4:31 PM

                              Thanks 😁
                              For people who want to do this. Don’t forget to set the QUICKREG SYS NAME in the FOG SETTINGS to SYSSERIAL.
                              @george1421 Can I upload my file somewere for the people who want to implement the feature ?

                              G 1 Reply Last reply Aug 23, 2022, 6:24 PM Reply Quote 0
                              • G
                                george1421 Moderator @Xinzo
                                last edited by george1421 Aug 23, 2022, 12:25 PM Aug 23, 2022, 6:24 PM

                                @xinzo If you want to post them here, I’ll rewrite the instructions as a tutorial and then provide a link to this thread. You might need to change the extension of the files to .txt so they can be uploaded. I can see other wanting this feature too. I know I personally missed it since the FOG v0.30 days.

                                Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

                                X 1 Reply Last reply Aug 24, 2022, 8:44 AM Reply Quote 0
                                • X
                                  Xinzo @george1421
                                  last edited by Aug 24, 2022, 8:44 AM

                                  @george1421
                                  Here are my files, I’ve upload all the content of my postinitscripts folder:
                                  fog.postinit.txt
                                  fog.patch.customhostname.txt
                                  fog.man.reg.fix.txt
                                  fog.customhostname.txt
                                  fog.auto.reg.txt

                                  @george1421 said in Use serial number as hostname in Fog:

                                  I can see other wanting this feature too. I know I personally missed it since the FOG v0.30 days.

                                  Without you, impossible to implement this feature. Thanks a lot

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