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332 B
Markdown
10 lines
No EOL
332 B
Markdown
[⬅️ Back to `index`](index.md)
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# Unknown command
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The Unknown Command error (421, ERR_UNKNOWNCOMMAND in [RFC 1459](https://datatracker.ietf.org/doc/html/rfc1459#section-6.1)) is when the server doesn't recognise a command a client sends.
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```
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↗️ UNKNOWNCMD :something
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↙️ :server 421 nick UNKNOWNCMD :Unknown command
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``` |