This may not be easy to search for or do, but we can give it a try. ;)

1. Forbidden substrings are going to take some upstream noggin work. CC: @abompard
   Might be good if it was made a config file option, so we can adjust it over time.

2. Finding all users with fedora in uid isn't something ipa is good at searching for. You can search for a substring in all fields easily, but not just uid. ;( I'm sure we can figure out how to do this...

This may not be easy to search for or do, but we can give it a try. ;)

1. Finding all users with fedora in uid isn't something ipa is good at searching for. You can search for a substring in all fields easily, but not just uid. ;( I'm sure we can figure out how to do this...
   

This can be done with fasjson, e.g.:

curl --negotiate -u : https://fasjson.fedoraproject.org/v1/search/users/?username=fedora

however, it's paginated, and can't seem to get any other page than page 1, or make the pages bigger :(

However, there are currently 348 users with fedora as a substring.

I talked with @abompard and have refiled this upstream: https://github.com/fedora-infra/noggin/issues/957

Once it's implemented there, we can add fedora to it and look at the existing users.

The noggin feature is now implemented and deployed. We can configure a set of regexps that registering usernames will be checked against and blocked if they match. I've taken the liberty to add .*fedora.* already.

As far as listing existing users, this command will give their UIDs:

ldapsearch -LLL -o ldif_wrap=no 'uid=*fedora*' -b cn=accounts,dc=fedoraproject,dc=org uid | grep ^uid: | cut -d' ' -f2

There are currently 369 accounts containing fedora.