Then create separate torrc files for each version, ensuring they run on distinct SocksPorts (e.g., 9050 for v17, 9150 for v18, 9052 for v19).

Before diving into the technical implementation, let’s break down the keyword into its constituent parts:

Thus, "fu10 night crawling 17 18 19 tor top" describes a methodology: using an FU10-based firewall configuration to run persistent, low-profile network crawling operations through Tor versions 17–19, with Tor positioned as the top routing layer.

The phrase "night crawling" implies automation during low-activity hours (typically 00:00–06:00 UTC). To operationalize this:

A sample crontab entry:

0 1 * * * /usr/local/bin/fu10-nightcrawler.sh && /opt/tor19/bin/tor -f /etc/tor/torrc.19 && python3 /opt/crawler/main.py --tor-top