[debian-edu-commits] [Debian Wiki] Update of "DebianEdu/Documentation/Stretch/Architecture" by WolfgangSchweer

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The "DebianEdu/Documentation/Stretch/Architecture" page has been changed by WolfgangSchweer:
https://wiki.debian.org/DebianEdu/Documentation/Stretch/Architecture?action=diff&rev1=13&rev2=14

Comment:
LTSP now uses NBD instead of NFS.

  === Thin clients ===
  A thin client setup enables ordinary PCs to function as (X-)terminals. This means that the machine boots from a diskette or directly from the server using network-PROM (or PXE) without using the local client hard drive. The thin client setup used is that of the Linux Terminal Server Project (LTSP).
  
- Thin clients are a good way to make use of older, weaker machines as they effectively run all programs on the LTSP server. This works as follows: the service uses DHCP and TFTP to connect to the network and boot from the network. Next, the file system is mounted via NFS from the LTSP server, and finally the X Window System is started.
+ Thin clients are a good way to make use of older, weaker machines as they effectively run all programs on the LTSP server. This works as follows: the service uses DHCP and TFTP to connect to the network and boot from the network. Next, the file system is mounted from the LTSP server using NBD, and finally the X Window System is started.
  The display manager (LDM) connects to the LTSP server via SSH with X-forwarding. This way all data is encrypted on the network.
  For very old thin clients which are too slow for the encryption this can be set to the behavior from former versions, which is to use a direct X connection via XDMCP.