Failed to check remote checksum: unknown url type: 'u.md5' ??

[Crash0v3r1de]

So I have my SecurityOnion node in my homelab to watch my lab traffic just to be safe. I have not made any changes to the ruleset except adding some additional rule URLS but I tested the update with those completely removed and that changed nothing.

Is there a known bug for SecurityOnion right now for this type of rule update failure? This box sits and just watches so I have no clue why this randomly stopped working.

2021-08-22 03:34:30,671 - - Loading ./rulecat.conf.
2021-08-22 03:34:30,694 - - Forcing Suricata version to 6.0.
2021-08-22 03:34:30,694 - - Fetching /.
Traceback (most recent call last):
File "/usr/local/bin/idstools-rulecat", line 12, in
sys.exit(main())
File "/usr/local/lib/python3.9/site-packages/idstools/scripts/rulecat.py", line 845, in main
files = Fetch(args).run()
File "/usr/local/lib/python3.9/site-packages/idstools/scripts/rulecat.py", line 329, in run
files.update(self.fetch(url))
File "/usr/local/lib/python3.9/site-packages/idstools/scripts/rulecat.py", line 317, in fetch
idstools.net.get(
File "/usr/local/lib/python3.9/site-packages/idstools/net.py", line 55, in get
remote = urlopen(url)
File "/usr/local/lib/python3.9/urllib/request.py", line 214, in urlopen
return opener.open(url, data, timeout)
File "/usr/local/lib/python3.9/urllib/request.py", line 501, in open
req = Request(fullurl, data)
File "/usr/local/lib/python3.9/urllib/request.py", line 320, in init
self.full_url = url
File "/usr/local/lib/python3.9/urllib/request.py", line 346, in full_url
self._parse()
File "/usr/local/lib/python3.9/urllib/request.py", line 375, in _parse
raise ValueError("unknown url type: %r" % self.full_url)
ValueError: unknown url type: '/'

[weslambert]

Could you please provide some more information as to how/where you modified the rule URLs?