Oracle 5.0 Reference Manual page 510

Disables or enables automatic purging of relay log files as soon as they are not needed any more.
The default value is 1 (ON).
•
relay_log_space_limit
Command-Line Format
Option-File Format
Option Sets Variable
Variable Name
Variable Scope
Dynamic Variable
The maximum amount of space to use for all relay logs.
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secure_auth
Command-Line Format
Option-File Format
Option Sets Variable
Variable Name
Variable Scope
Dynamic Variable
If this variable is enabled, the server blocks connections by clients that attempt to use accounts that
have passwords stored in the old (pre-4.1) format.
Enable this variable to prevent all use of passwords employing the old format (and hence insecure
communication over the network).
Server startup fails with an error if this variable is enabled and the privilege tables are in pre-4.1
format. See Section C.5.2.4,
•
secure_file_priv
Version Introduced
Command-Line Format
Option-File Format
Server System Variables
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--relay_log_space_limit=#
relay_log_space_limit
Yes,
relay_log_space_limit
relay_log_space_limit
Global
No
Permitted Values
Platform
32
Bit Size
Type
numeric
Default
0
Range
0 .. 4294967295
Permitted Values
Platform
64
Bit Size
Type
numeric
Default
0
Range
0 .. 18446744073709547520
--secure-auth
secure-auth
Yes,
secure_auth
secure_auth
Global
Yes
"Client does not support authentication
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5.0.38
--secure-file-priv=path
secure-file-priv=path
490
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protocol".