diff options
Diffstat (limited to 'usr.sbin/ypbind/ypbind.8')
| -rw-r--r-- | usr.sbin/ypbind/ypbind.8 | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/usr.sbin/ypbind/ypbind.8 b/usr.sbin/ypbind/ypbind.8 index dcd47af..4748a21 100644 --- a/usr.sbin/ypbind/ypbind.8 +++ b/usr.sbin/ypbind/ypbind.8 @@ -29,7 +29,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.\" $Id: ypbind.8,v 1.1 1995/04/09 21:59:06 wpaul Exp $ +.\" $Id: ypbind.8,v 1.2 1995/04/26 19:03:15 wpaul Exp $ .\" .Dd April 9, 1995 .Dt YPBIND 8 @@ -42,6 +42,7 @@ .Op Fl ypset .Op Fl ypsetme .Op Fl s +.Op Fl S Ar domainname,server1,server2,... .Sh DESCRIPTION .Nm ypbind is the process that maintains NIS binding information. At startup, @@ -103,6 +104,35 @@ flag causes to run in secure mode: it will refuse to bind to any NIS server that is not running as root (i.e. that is not using privileged TCP ports). +.It Fl S Ar domainname,server1,server2,server3,... +The +.Fl S +flag allows the system administrator to lock ypbind to a particular +domain and group of NIS servers. Up to ten servers can be specified. +There must not be any spaces between the commas in the domain/server +specification. This option is used to insure that that the system binds +only to one domain and only to one of the specified servers, which +is useful for systems that are both NIS servers and NIS +clients: it provides a way to restrict what machines the system can +bind to without the need for specifying the +.Fl ypset +or +.Fl ypsetme +options, which are often considered to be security holes. The specified +servers must have valid entries in the local +.Pa /etc/hosts +file. IP addresses may be specified in place of hostnames. If +.Nm ypbind +can't make sense ouf of the arguments, it will ignore +the +.Fl S +flag and continue running normally. +.Pp +Note that +.Nm ypbind +will consider the domainname specified with the +.Fl S +flag to be the system default domain. .Sh NOTES .Nm ypbind will not make continuous attempts to keep secondary domains bound. @@ -118,6 +148,9 @@ client programs reference it ot not. .Bl -tag -width Pa -compact .It Pa /var/yp/binding/[domainname].[version] The files used to hold binding information for each NIS domain. +.It Pa /etc/sysconfig +System configuration file where the system default domain and +ypbind startup options are specified. .El .Sh SEE ALSO .Xr syslog 3 , |
