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Solaris™ Internals: Core Kernel Components by Richard McDougall, Jim Mauro

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A.5. Miscelaneous Parameters

Table A-7 lists miscellaneous kernel parameters. You can read more about many of the tunable parameters in “Kernel Bootstrap and Initialization” .

Table A-7. Miscellaneous Parameters
Parameter Default Category Description/Notes
maxusers MB of RAM Limit Generic tunable for sizing various kernel resources.
ngroups_max 16 Limit Maximum number of supplementary groups a user can belong to.
npty 48 Limit Number of pseudodevices, /dev/pts slave devices, and /dev/pty controller devices.
pt_cnt 48 Limit Number of pseudodevices, /dev/pts slave devices, and /dev/ptm master devices.
rstchown 1 Switch Enables POSIX_CHOWN_RESTRICTED behavior. Only a root process can change file ownership. A process must be a current member of the ...

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