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| author | mux <mux@FreeBSD.org> | 2003-02-27 18:25:26 +0000 |
|---|---|---|
| committer | mux <mux@FreeBSD.org> | 2003-02-27 18:25:26 +0000 |
| commit | b67c360759d60e0ef995fccbe053c74540b206f8 (patch) | |
| tree | 838e3c4340c7845b6e2bfe2af1a1de93bb3e93ba /usr.sbin/vidcontrol | |
| parent | edbd8f786fe2081a98edc021531df96ec6846c18 (diff) | |
| download | FreeBSD-src-b67c360759d60e0ef995fccbe053c74540b206f8.zip FreeBSD-src-b67c360759d60e0ef995fccbe053c74540b206f8.tar.gz | |
Document the fact that VTY locking is easily bypassable when DDB
is compiled in the kernel. Also add some useful xrefs to lock(1).
Diffstat (limited to 'usr.sbin/vidcontrol')
| -rw-r--r-- | usr.sbin/vidcontrol/vidcontrol.1 | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/usr.sbin/vidcontrol/vidcontrol.1 b/usr.sbin/vidcontrol/vidcontrol.1 index edde901..63252c0 100644 --- a/usr.sbin/vidcontrol/vidcontrol.1 +++ b/usr.sbin/vidcontrol/vidcontrol.1 @@ -228,6 +228,10 @@ Turn vty switching on or off. When vty switching is off, attempts to switch to a different virtual terminal will fail. (The default is to permit vty switching.) +This protection can be easily bypassed when the kernel is compiled with +the DDB option. +However, you probably shouldn't compile the kernel debugger on a box which +is supposed to be physically secure. .It Fl s Ar number Set the current vty to .Ar number . |
