https://www.vulnhub.com/entry/bob-101,226/ Bob: 1.0.1This mentions the name of this release, when it was released, who made it, a link to 'series' and a link to the homepage of the release. It's common for an author to release multiple 'scenarios', making up a 'series' of machines to attack.www.vulnhub.com ReconnaissanceDiscovery└─$ sudo nmap -sn 172.16.1.0/24 ..