SOME INTERESTING SYSCTL MIBS
This appendix is a dictionary of some useful sysctl MIBs, as well as some sysctl MIBs that are no longer useful but have long been discussed in FreeBSD forums. Chapter 5 discusses tools for manipulating sysctl MIBs. When a MIB is discussed in detail elsewhere in the book, a reference is made to the appropriate chapter. Your system certainly has many more sysctls than these, but described here are those that I’ve tripped over repeatedly.
Remember, thoughtless use of sysctls can easily damage or destroy a working system. For example, if you set a limit on resource usage below the value needed at that moment, you can crash ...
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