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file-systems.md

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File Systems

FAT(16) - file allocation table FAT32 NTFS EXT4

Parity

  • Filesystem error handling

  • [reed-solomon]

    • NTFS VULNERABILITY CRITICALITY UNDERESTIMATED There is a specially nasty vulnerability in NTFS right now. Triggerable by opening special crafted name in any folder anywhere.' The vulnerability will instant pop up complaining about yuor harddrive is corrupted when path is opened

    • The vulnerability can be remotely triggered if having any kind of service allowing file opens of specific names to happen. Its embeddable in HTML, sharred folders etc. Until now only consequence have been running chkdsk on boot- but now the MFT have corrupted

    • Its triggerable as a low privileged user- no special credentials or write permissions are needed.

    • All that appears to be happening from this is that the volume dirty bits get flipped in the $Volume file. Until those bits are reset, Windows will see the volume as corrupted. The file system is not actually corrupted by .:$i30:$bitmap.

    • Seems like it can also be triggered when you paste the command in the URL of a browser except ie so far

didnt know where else to put this ...

  • tabfs

    • browser tabs (bi directional) as a filesystem mount

  • juicefs

    • A distributed POSIX file system built on top of Redis and S3

  • rsync

    • Sort of can be used like the copy command, but only copies the changed bits
    • [networks]
    • [terminal]
    • New
      • Bit-Sync - pure javascript rsync protocol to sync arbitrary binary data
      • zsync - rsync via [http]
        • zsync is a file transfer program. It allows you to download a file from a remote server, where you have a copy of an older version of the file on your computer already. zsync downloads only the new parts of the file. It uses the same algorithm as rsync
        • have a .zsync file with precalculated hash's

  • FSSPEC: Filesystem interfaces for Python #python

    • abstraction layer for file access

Proxy

Translate from one file system to another in realtime (mounting)

Novel Use

  • linux - devices are on the filesystem
  • ffs: the file fileystem
    • mount semi-structured data (like JSON) as a Unix filesystem