Document that securelevel >= 2 clamps time changes to at most one second.

PR: docs/14449 Submitted by: James FitzGibbon <james@targetnet.com>
1999-12-16 02:15:53 +00:00 · 1999-12-16 02:15:53 +00:00 · c695346248
commit c695346248
parent 0f14f262e7
1 changed files with 4 additions and 0 deletions
--- a/sbin/init/init.8
+++ b/sbin/init/init.8
@ -119,6 +119,10 @@ This level precludes tampering with filesystems by unmounting them,
 but also inhibits running
 .Xr newfs 8
 while the system is multi-user.
+.Pp
+In addition, kernel time changes are restricted to less than or equal to one
+second.  Attempts to change the time by more than this will log the message
+.Dq Time adjustment clamped to +1 second .
 .It Ic 3
 Network secure mode \- same as highly secure mode, plus
 IP packet filter rules (see