Capturing snapshots

To study how a box changes its log over time (folded entries, reboots, timestamps before time sync), --capture DIR also stores what the box sends, next to the normal output:

fritzlogextractor --config config.yaml --capture ./capture > /dev/null

Each device gets a directory below DIR. Every poll adds a line to polls.jsonl with poll time, uptime, model, firmware and the SHA-256 of the log, or with error if the log could not be read (for example while the device reboots). The log itself is stored once per distinct content as <sha256 prefix>.xml, so a log that does not change costs one line per poll.

In the container, use a directory in the volume, for example --capture /var/lib/fritzlogextractor/capture.

Not redacted

The snapshots hold what the box sent: addresses, host and user names and DynDNS tokens. Redact them before you share them.

To see what happens around a reboot, set poll_interval to 10 for the time of the test.