X-Git-Url: https://git.xinqibao.xyz/slock.git/blobdiff_plain/a9eddbd94fb03a36186ef2b1e784468dfcddbc19..refs/heads/master:/slock.1

diff --git a/slock.1 b/slock.1
index 2b2b7c8..946165f 100644
--- a/slock.1
+++ b/slock.1
@@ -6,6 +6,8 @@
 .Sh SYNOPSIS
 .Nm
 .Op Fl v
+.Op Fl f
+.Op Fl m Ar message
 .Op Ar cmd Op Ar arg ...
 .Sh DESCRIPTION
 .Nm
@@ -16,7 +18,24 @@ is executed after the screen has been locked.
 .Bl -tag -width Ds
 .It Fl v
 Print version information to stdout and exit.
+.It Fl f
+List all valid X fonts and exit.
+.It Fl m Ar message
+Overrides default slock lock message.
+.TP
 .El
+.Sh SECURITY CONSIDERATIONS
+To make sure a locked screen can not be bypassed by switching VTs
+or killing the X server with Ctrl+Alt+Backspace, it is recommended
+to disable both in
+.Xr xorg.conf 5
+for maximum security:
+.Bd -literal -offset left
+Section "ServerFlags"
+	Option "DontVTSwitch" "True"
+	Option "DontZap"      "True"
+EndSection
+.Ed
 .Sh EXAMPLES
 $
 .Nm