For sure Dmitriy, now i' am using windows, but probably i will use on Redhat too. but as i know, there is no way i can use only ".CSP" termination. Studio verify the name, i can't create the same file with this variation, for example:i can't create a file "teste.CSP" and "Teste.csp", Studio validate this information and don't let me create the file. but i don't have a way to force the usage of ".CSP" type.
can you try to log using the terminal, go do "%SYS" and run the ^SECURITY command,
if your instance security is locked down, just see if the UnknownUser is enabled, and if not, enable it and restart the instance.
here is the docs:
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