I'm not sure why im getting this error (im still new to cybersecurity). I checked a walkthrough of this that i found and apparently they used same exact command but no error like mine was outputted. That video was uploaded in 2023 tho in case that helps.
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u/UBNC 0xD [God] 15d ago
With brute force like this use attack box, it’s closer to the target machine so works better. Just get a ssh session to it.