Child pages
  • Transfer a file incrementally over a flapping connection

Versions Compared


  • This line was added.
  • This line was removed.
  • Formatting was changed.

Shipboard outages of network can happen when the ship turns.  This can be unpredictable.  I use this technique to "set and forget" transfer data over HiSeasNet, using a combination of rsync, SSH and the Bourne-Again SHell (BASH) on a UNIX-type system.  You'll need to set up password-less SSH keys to do this.


3. On the local shipboard system, use rsync to grab the data in a loop that will execute forever until rsync succeeds.  The -P flag will move resume a partially transferred file, so once data is moved once, it will stay on board and be updated; the -c flag will ensure the shore-side and shipboard final file(s) checksum to be the same.