How do I block tons of failed SSH logins?

1132240 pts.
Tags:
Red Hat
SSH
On our Red Hat server, I keep getting tons of failed SSH logins each morning when I get into the office. How can I block these from coming in? It looks like it's coming from the same IP address but not entirely sure. Thank you for your help.
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  • TheRealRaven
    What exactly is the problem you want to solve?

    Do you simply not want to see the notices? Do you want to block a specific remote address? Do you want to allow only certain addresses? Are SSH connections the only ones you care about and other connections need no protection?

    Does the server need protection? Why is an unprotected server exposed for unprotected connections? Is there no staff trained in internet/network security?
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