@@ -15,18 +15,48 @@ select current_user();
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current_user()
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root@localhost
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set global debug= "+d,vio_peer_addr_fake_ipv4,getnameinfo_fake_ipv4,getaddrinfo_error_again";
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- ERROR HY000: Can't get hostname for your address
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+ ERROR HY000: Host '192.0.2.4' is not allowed to connect to this MySQL server
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show global status like "%peer%";
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Variable_name Value
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Peer_address_errors 0
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select * from performance_schema.host_cache;
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- IP HOST SUM_BLOCKING_ERRORS COUNT_NAMEINFO_ERRORS COUNT_FORMAT_ERRORS COUNT_ADDRINFO_ERRORS COUNT_FCRDNS_ERRORS COUNT_HOST_ACL_ERRORS COUNT_USER_ACL_ERRORS
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- ERROR HY000: Can't get hostname for your address
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+ IP 192.0.2.4
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+ HOST NULL
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+ HOST_VALIDATED NO
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+ SUM_BLOCKING_ERRORS 1
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+ COUNT_NAMEINFO_TRANSIENT_ERRORS 0
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+ COUNT_NAMEINFO_PERMANENT_ERRORS 0
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+ COUNT_FORMAT_ERRORS 0
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+ COUNT_ADDRINFO_TRANSIENT_ERRORS 1
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+ COUNT_ADDRINFO_PERMANENT_ERRORS 0
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+ COUNT_FCRDNS_ERRORS 0
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+ COUNT_HOST_ACL_ERRORS 1
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+ COUNT_HANDSHAKE_ERRORS 0
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+ COUNT_AUTHENTICATION_ERRORS 0
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+ COUNT_USER_ACL_ERRORS 0
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+ COUNT_LOCAL_ERRORS 0
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+ COUNT_UNKNOWN_ERRORS 0
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+ ERROR HY000: Host '192.0.2.4' is not allowed to connect to this MySQL server
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show global status like "%peer%";
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Variable_name Value
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Peer_address_errors 0
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select * from performance_schema.host_cache;
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- IP HOST SUM_BLOCKING_ERRORS COUNT_NAMEINFO_ERRORS COUNT_FORMAT_ERRORS COUNT_ADDRINFO_ERRORS COUNT_FCRDNS_ERRORS COUNT_HOST_ACL_ERRORS COUNT_USER_ACL_ERRORS
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+ IP 192.0.2.4
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+ HOST NULL
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+ HOST_VALIDATED NO
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+ SUM_BLOCKING_ERRORS 2
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+ COUNT_NAMEINFO_TRANSIENT_ERRORS 0
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+ COUNT_NAMEINFO_PERMANENT_ERRORS 0
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+ COUNT_FORMAT_ERRORS 0
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+ COUNT_ADDRINFO_TRANSIENT_ERRORS 2
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+ COUNT_ADDRINFO_PERMANENT_ERRORS 0
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+ COUNT_FCRDNS_ERRORS 0
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+ COUNT_HOST_ACL_ERRORS 2
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+ COUNT_HANDSHAKE_ERRORS 0
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+ COUNT_AUTHENTICATION_ERRORS 0
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+ COUNT_USER_ACL_ERRORS 0
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+ COUNT_LOCAL_ERRORS 0
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+ COUNT_UNKNOWN_ERRORS 0
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revoke select on test.* from 'root'@'santa.claus.ipv4.example.com';
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drop user 'root'@'santa.claus.ipv4.example.com';
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set global debug= default;
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