Solid walkthrough on a tool that often gets overlooked. The zero-I/O mode for scanning is pragmatic, especially when nmap isn't availabel or overkill for a quick connectivity check. One thing I've found helpful when troubleshooting intermittent issues is combining nc with watch to poll ports repeatedly and catch transient failures that aone-off check would miss.
Solid walkthrough on a tool that often gets overlooked. The zero-I/O mode for scanning is pragmatic, especially when nmap isn't availabel or overkill for a quick connectivity check. One thing I've found helpful when troubleshooting intermittent issues is combining nc with watch to poll ports repeatedly and catch transient failures that aone-off check would miss.
Thank you!