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    Idea

    Scheduled Pinned Locked Moved IT Discussion
    linuxramdisk
    22 Posts 6 Posters 2.0k Views
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    • wirestyle22W
      wirestyle22 @stacksofplates
      last edited by wirestyle22

      @johnhooks That's an interesting idea. I've never done it though

      stacksofplatesS 1 Reply Last reply Reply Quote 1
      • stacksofplatesS
        stacksofplates @wirestyle22
        last edited by

        @wirestyle22 said in Idea:

        @johnhooks That's an interesting idea. I've never done it though

        Thanks. I'm sure someone at some point has created something like this. But I'd like to do it with our high end workstations.

        1 Reply Last reply Reply Quote 0
        • thwrT
          thwr
          last edited by

          Sounds valid, but keeping things up to date might be an issue.

          stacksofplatesS 1 Reply Last reply Reply Quote 1
          • DashrenderD
            Dashrender
            last edited by

            4-8 GB for the OS? what OS are you running so lean on?

            stacksofplatesS thwrT scottalanmillerS travisdh1T 4 Replies Last reply Reply Quote 0
            • stacksofplatesS
              stacksofplates @Dashrender
              last edited by stacksofplates

              @Dashrender said in Idea:

              4-8 GB for the OS? what OS are you running so lean on?

              A full RHEL Workstation install only uses around 4GB of space. Depending what packages you add on after it's somewhere between 4-8.

              1 Reply Last reply Reply Quote 0
              • stacksofplatesS
                stacksofplates @thwr
                last edited by

                @thwr said in Idea:

                Sounds valid, but keeping things up to date might be an issue.

                ya good point. That might be a hurdle.

                thwrT 1 Reply Last reply Reply Quote 1
                • thwrT
                  thwr @Dashrender
                  last edited by thwr

                  @Dashrender said in Idea:

                  4-8 GB for the OS? what OS are you running so lean on?

                  4GB is plenty in a core Linux system, even with a full blown desktop and a running LibreOffice for example.

                  1 Reply Last reply Reply Quote 2
                  • thwrT
                    thwr @stacksofplates
                    last edited by

                    @johnhooks I thought about something like this myself, but more in the context of LUKS on a Pi without storing the key on the SD-Card. Would be interesting to see your approach 😉

                    1 Reply Last reply Reply Quote 2
                    • scottalanmillerS
                      scottalanmiller @Dashrender
                      last edited by

                      @Dashrender said in Idea:

                      4-8 GB for the OS? what OS are you running so lean on?

                      That's plenty for an OS.

                      1 Reply Last reply Reply Quote 0
                      • scottalanmillerS
                        scottalanmiller
                        last edited by

                        This is a pretty standard set up. This is basically how we ran the school that I built in the early 2000s. The system image was pulled fresh over the network and ran in memory. Very effective.

                        stacksofplatesS wirestyle22W 2 Replies Last reply Reply Quote 3
                        • stacksofplatesS
                          stacksofplates @scottalanmiller
                          last edited by

                          @scottalanmiller said in Idea:

                          This is a pretty standard set up. This is basically how we ran the school that I built in the early 2000s. The system image was pulled fresh over the network and ran in memory. Very effective.

                          Is that the one you used SUSE for?

                          1 Reply Last reply Reply Quote 0
                          • wirestyle22W
                            wirestyle22 @scottalanmiller
                            last edited by

                            @scottalanmiller said in Idea:

                            This is a pretty standard set up. This is basically how we ran the school that I built in the early 2000s. The system image was pulled fresh over the network and ran in memory. Very effective.

                            In the modern world how would you accomplish this? What would you use?

                            travisdh1T scottalanmillerS 2 Replies Last reply Reply Quote 0
                            • travisdh1T
                              travisdh1 @Dashrender
                              last edited by

                              @Dashrender said in Idea:

                              4-8 GB for the OS? what OS are you running so lean on?

                              RHEL/CentOS can do useful things with ~500MB for a complete system. Depending on what they're doing, 4GB for the system drive could be more than enough for years to come.

                              @johnhooks Do you use a separate partition or mount point for /home? Generally you'd encrypt the home (data) sections and leave the OS as a standard install. Things like encfs make this easy to do. Encrypting everything takes more work and monkeying around with LVM, copying everything, etc.

                              At least with LVM, you should be able to get everything done on a live system. Yeah, it lets you do things like this.

                              stacksofplatesS 1 Reply Last reply Reply Quote 0
                              • stacksofplatesS
                                stacksofplates @travisdh1
                                last edited by

                                @travisdh1 said in Idea:

                                @Dashrender said in Idea:

                                4-8 GB for the OS? what OS are you running so lean on?

                                RHEL/CentOS can do useful things with ~500MB for a complete system. Depending on what they're doing, 4GB for the system drive could be more than enough for years to come.

                                @johnhooks Do you use a separate partition or mount point for /home? Generally you'd encrypt the home (data) sections and leave the OS as a standard install. Things like encfs make this easy to do. Encrypting everything takes more work and monkeying around with LVM, copying everything, etc.

                                At least with LVM, you should be able to get everything done on a live system. Yeah, it lets you do things like this.

                                We automount home from NFS. Only thing that's actually on these systems is the root partition and we have to separate /var, /var/log, and a couple others for SCAP.

                                1 Reply Last reply Reply Quote 0
                                • travisdh1T
                                  travisdh1 @wirestyle22
                                  last edited by

                                  @wirestyle22 said in Idea:

                                  @scottalanmiller said in Idea:

                                  This is a pretty standard set up. This is basically how we ran the school that I built in the early 2000s. The system image was pulled fresh over the network and ran in memory. Very effective.

                                  In the modern world how would you accomplish this? What would you use?

                                  All you need is a PXE capable network interface on the workstations. It's not exactly easy, but very doable for anyone that knows Linux.

                                  wirestyle22W 1 Reply Last reply Reply Quote 1
                                  • stacksofplatesS
                                    stacksofplates
                                    last edited by

                                    So it's kind of ridiculous that we need to encrypt the drive on the workstation since there is nothing on it. But we are forced to. Logs are also sent to an rsyslog server, so if I can just do away with the drive that would be nice ha.

                                    travisdh1T 1 Reply Last reply Reply Quote 2
                                    • scottalanmillerS
                                      scottalanmiller @wirestyle22
                                      last edited by

                                      @wirestyle22 said in Idea:

                                      @scottalanmiller said in Idea:

                                      This is a pretty standard set up. This is basically how we ran the school that I built in the early 2000s. The system image was pulled fresh over the network and ran in memory. Very effective.

                                      In the modern world how would you accomplish this? What would you use?

                                      Like this for example:

                                      https://help.ubuntu.com/community/DisklessUbuntuHowto

                                      1 Reply Last reply Reply Quote 2
                                      • travisdh1T
                                        travisdh1 @stacksofplates
                                        last edited by

                                        @johnhooks said in Idea:

                                        So it's kind of ridiculous that we need to encrypt the drive on the workstation since there is nothing on it. But we are forced to. Logs are also sent to an rsyslog server, so if I can just do away with the drive that would be nice ha.

                                        I'd almost just setup network boot then. Everything uses the same system image/software. If you need to add/update software, you do that and then save the results as the new system image.

                                        1 Reply Last reply Reply Quote 1
                                        • wirestyle22W
                                          wirestyle22 @travisdh1
                                          last edited by

                                          @travisdh1 said in Idea:

                                          @wirestyle22 said in Idea:

                                          @scottalanmiller said in Idea:

                                          This is a pretty standard set up. This is basically how we ran the school that I built in the early 2000s. The system image was pulled fresh over the network and ran in memory. Very effective.

                                          In the modern world how would you accomplish this? What would you use?

                                          All you need is a PXE capable network interface on the workstations. It's not exactly easy, but very doable for anyone that knows Linux.

                                          So I'm building a pretty robust VM host server to be used as a test environment. Any recommendations as far as a multi-port PXE capable NIC? Not to highjack the thread.

                                          travisdh1T 1 Reply Last reply Reply Quote 0
                                          • travisdh1T
                                            travisdh1 @wirestyle22
                                            last edited by

                                            @wirestyle22 said in Idea:

                                            @travisdh1 said in Idea:

                                            @wirestyle22 said in Idea:

                                            @scottalanmiller said in Idea:

                                            This is a pretty standard set up. This is basically how we ran the school that I built in the early 2000s. The system image was pulled fresh over the network and ran in memory. Very effective.

                                            In the modern world how would you accomplish this? What would you use?

                                            All you need is a PXE capable network interface on the workstations. It's not exactly easy, but very doable for anyone that knows Linux.

                                            So I'm building a pretty robust VM host server to be used as a test environment. Any recommendations as far as a multi-port PXE capable NIC? Not to highjack the thread.

                                            I'd challenge you to find a multi-port NIC that doesn't support PXE! I stick with Intel NIC add in cards when I have the choice, I've had some driver headaches with Broadcom cards over the years. xByte and Stallard Tech are where I'd be looking if I just needed the add in card(s), or the entire server for that matter.

                                            wirestyle22W 1 Reply Last reply Reply Quote 1
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