# 保留用户名：支持通配符？
**URL:** https://meta.discourse.org/t/reserved-usernames-wildcard/110987
**Category:** Support
**Created:** [2019年三月7日 15:26 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987 "2019-03-07T15:26:34Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@DrBB](https://meta.discourse.org/u/DrBB)
#### Post date: [2019年三月7日 15:26 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/1 "2019-03-07T15:26:34Z")
We had someone register with a reserved username, getting around the restriction by the simple expedient of adding “1” to the end. I can’t tell if the system will accept a wildcard entry to prevent this, i.e., by declaring
reservedusername\*
in the list. I’m a little hesitant to use the “just try it and see” method. Can anyone enlighten me?
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### Author:  [@awesomerobot](https://meta.discourse.org/u/awesomerobot)
#### Post date: [2019年三月7日 15:35 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/2 "2019-03-07T15:35:52Z")
> [@DrBB](#):
>
> I can’t tell if the system will accept a wildcard entry to prevent this, i.e., by declaring
>
> reservedusername\*
It will, we mention it in the description below the setting
> Usernames for which signup is not allowed. Wildcard symbol \* can be used to match any character zero or more times.
`reservedusername*` should prevent `reservedusername1` from being registered
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### Author:  [@DrBB](https://meta.discourse.org/u/DrBB)
#### Post date: [2019年三月7日 16:03 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/3 "2019-03-07T16:03:59Z")
> [@awesomerobot](#):
>
> It will, we mention it in the description below the setting
–Ha! I should look more closely at what’s in front of me. Thanks!
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### Author:  [@RGJ](https://meta.discourse.org/u/RGJ)
#### Post date: [2019年三月7日 19:13 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/4 "2019-03-07T19:13:54Z")
But people will be able to register `reserved_username`.
Maybe it’s an idea to look at the Levenshtein distance instead of using a wildcard?
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### Author:  [@DrBB](https://meta.discourse.org/u/DrBB)
#### Post date: [2019年三月7日 21:04 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/5 "2019-03-07T21:04:20Z")
> [@RGJ](#):
>
> Maybe it’s an idea to look at the Levenshtein distance instead of using a wildcard?
Yow, that would probably be a lot more bulletproof, but I’m not sure it’s worth that degree of effort. Out of curiosity, would you use a reg ex test of some kind? Can you do that in the Discourse admin?
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### Author:  [@awesomerobot](https://meta.discourse.org/u/awesomerobot)
#### Post date: [2019年三月7日 22:37 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/6 "2019-03-07T22:37:15Z")
> [@RGJ](#):
>
> Maybe it’s an idea to look at the Levenshtein distance instead of using a wildcard?
This might be more effort than it’s worth… It would catch `reserved_username1` but it probably wouldn’t catch `official_reserved_username`, right? this is the type of thing that a motivated person would always find a way around.
> [@DrBB](#):
>
> would you use a reg ex test of some kind? Can you do that in the Discourse admin?
We have a regex setting for blocked/censored words, and that seems like a reasonable way to enhance reserved usernames (which only has the wildcard)… but does this problem come up often enough to justify prioritizing that? I don’t think it’s a complaint we’ve had often.
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### Author:  [@DrBB](https://meta.discourse.org/u/DrBB)
#### Post date: [2019年三月7日 23:01 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/7 "2019-03-07T23:01:56Z")
We only found the one instance when we searched our user names, so yeah, I don’t think it calls for anything too elaborate.
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### Author:  [@RGJ](https://meta.discourse.org/u/RGJ)
#### Post date: [2019年三月7日 23:11 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/8 "2019-03-07T23:11:39Z")
> [@awesomerobot](#):
>
> this is the type of thing that a motivated person would always find a way around.
Exactly, so why support wildcards then? 🤔
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### Author:  [@Stephen](https://meta.discourse.org/u/Stephen)
#### Post date: [2019年三月8日 00:19 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/9 "2019-03-08T00:19:21Z")
Isn’t that just reason to separately block `reserved` and `username`?
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### Author:  [@system](https://meta.discourse.org/u/system)
#### Post date: [2019年四月7日 00:19 UTC](https://meta.discourse.org/t/reserved-usernames-wildcard/110987/10 "2019-04-07T00:19:33Z")
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