• Recent
    • Unsolved
    • Tags
    • Popular
    • Users
    • Groups
    • Search
    • Register
    • Login

    Multicast Issues on Centos 7

    Scheduled Pinned Locked Moved Solved
    FOG Problems
    5
    61
    43.8k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Wayne WorkmanW
      Wayne Workman @BedCruncher
      last edited by

      @BedCruncher If you find that the command I posted - or any command - allows you to multicast, I will immediately update all firewalld documentation we have in the wiki to reflect your success.

      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!
      Daily Clean Installation Results:
      https://fogtesting.fogproject.us/
      FOG Reporting:
      https://fog-external-reporting-results.fogproject.us/

      D B 2 Replies Last reply Reply Quote 0
      • D
        dvchuyen @Wayne Workman
        last edited by

        @Wayne-Workman said in Multicast Issues on Centos 7:

        Yes, I confirm the command work. I found it and solved my problem few days ago.

        https://forums.fogproject.org/topic/7194/could-not-pxe-boot-input-output-error-when-do-multicast/31

        Wayne WorkmanW 1 Reply Last reply Reply Quote 1
        • B
          BedCruncher @Wayne Workman
          last edited by BedCruncher

          @Wayne-Workman
          Sorry… I reread over what I had posted and it didn’t seem clear. The command above that I had ran was “supposed” to make it permanent, but failed to do so. I had to specify it statically in the NIC interface file. I will also double check the command you posted and test to see if it persists across reboots.

          1 Reply Last reply Reply Quote 0
          • Wayne WorkmanW
            Wayne Workman @dvchuyen
            last edited by

            @dvchuyen I’ve updated the Fedora 23 and the CentOS 7 Wiki articles.

            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!
            Daily Clean Installation Results:
            https://fogtesting.fogproject.us/
            FOG Reporting:
            https://fog-external-reporting-results.fogproject.us/

            B 1 Reply Last reply Reply Quote 0
            • B
              BedCruncher @Wayne Workman
              last edited by

              @Wayne-Workman
              I am not quite experiencing the same perfect results as @dvchuyen with regards to that firewall rule. I got it to work once, but since then it’s been extremely problematic.

               firewall-cmd --permanent --direct --add-rule ipv4 filter INPUT 0 -m udp -p udp -m pkttype --pkt-type multicast -j ACCEPT
              

              verified it was in there with ipdtable-save and ran firewall-cmd --reload and systemctl restart firewalld. This was to ensure that it was all properly in there and correct. I even rebooted the server to ensure that there wasn’t something in the network service that was gumming it up. I have also deleted the tasks out of FOG and manually triggered it again and still hang.

              Wayne WorkmanW 1 Reply Last reply Reply Quote 0
              • Wayne WorkmanW
                Wayne Workman @BedCruncher
                last edited by

                @BedCruncher can you turn off your firewall and see if multicast works then?

                systemctl stop firewalld

                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!
                Daily Clean Installation Results:
                https://fogtesting.fogproject.us/
                FOG Reporting:
                https://fog-external-reporting-results.fogproject.us/

                B 1 Reply Last reply Reply Quote 0
                • B
                  BedCruncher @Wayne Workman
                  last edited by

                  @Wayne-Workman
                  I will do that really quick, but it seems like it might be a different issue with firewalld now. I got it to work again if I ran systemctl restart firewalld.service after a reboot. then it would start the imaging seemingly consistently. For some reason the rules aren’t correctly applying at boot time.

                  Wayne WorkmanW 1 Reply Last reply Reply Quote 0
                  • Wayne WorkmanW
                    Wayne Workman @BedCruncher
                    last edited by

                    @BedCruncher From the behaviour you’ve been describing - I no longer believe this is a firewall issue.

                    Please just turn off firewall until we can complete troubleshooting with some sort of conclusive findings:

                    systemctl stop firewalld
                    systemctl disable firewalld

                    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!
                    Daily Clean Installation Results:
                    https://fogtesting.fogproject.us/
                    FOG Reporting:
                    https://fog-external-reporting-results.fogproject.us/

                    B 1 Reply Last reply Reply Quote 0
                    • B
                      BedCruncher @Wayne Workman
                      last edited by BedCruncher

                      @Wayne-Workman
                      God, I feel like I’m crying wolf all the time now. I disabled the firewalld service and it was hanging there as before. I then ran the commands

                      systemctl stop FOGMulticastManager
                      killall udp-sender
                      killall udp-sender
                      killall udp-sender
                      mysql -u root fog
                      TRUNCATE TABLE multicastSessionsAssoc;
                      TRUNCATE TABLE multicastSessions;
                      TRUNCATE TABLE tasks;
                      quit;
                      systemctl start FOGMulticastManager
                      

                      I then tested it, and ran the multicast test. I again ran the commands to do all that above. I rebooted and ran the above commands again to ensure I was working clean and disabled the firewall and tested and so far it seems to be working. Please disregard.

                      1 Reply Last reply Reply Quote 1
                      • Wayne WorkmanW
                        Wayne Workman @BedCruncher
                        last edited by

                        @BedCruncher said in Multicast Issues on Centos 7:

                        @Wayne-Workman

                        Using one of the links, can’t remember which. I was able to get the server and client to send using the udp-sender and udp-receiver. So I know they can talk, but I had to use the command.

                        udp-sender --file /opt/fog/.fogsettings --log /opt/fog/log/multicast.log  --ttl 32 --nopointopoint --interface em2
                        

                        if I dropped the last bit off then it would still try to grab em1 instead of em2.

                        An example now exists in two different places in the wiki. I want to merge the articles but it will be an involved process to do that - I’ll get it done.

                        For now, here are the two articles:

                        https://wiki.fogproject.org/wiki/index.php?title=Troubleshoot_Downloading_-_Multicast
                        2.
                        https://wiki.fogproject.org/wiki/index.php?title=Multicast

                        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!
                        Daily Clean Installation Results:
                        https://fogtesting.fogproject.us/
                        FOG Reporting:
                        https://fog-external-reporting-results.fogproject.us/

                        1 Reply Last reply Reply Quote 0
                        • 1
                        • 2
                        • 3
                        • 4
                        • 4 / 4
                        • First post
                          Last post

                        198

                        Online

                        12.0k

                        Users

                        17.3k

                        Topics

                        155.2k

                        Posts
                        Copyright © 2012-2024 FOG Project