NIO CommKit Host Interface Installation and System Administration Manual

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Control Tables (from AT&T 255-110-127)
srvtab
originating group, while the pattern 1c/sporty/*.0 would match the user root
from any group in the area/exchange, 1c/sporty. A question mark is used to
match the null user ID. Since TY6 and TY12 ports do not generate a user
ID as part of the dialstring, the pattern *.? may be used to match requests
from an originating terminal or modem group. Finally, the pattern 1c/
sporty/*!.0 on the host hotrod would match the user root from any group
except 1c/sporty/hotrod.
Service Field
The service field contains the name of the service the caller may request.
This field consists of a single word or abbreviation and is used to match the
service string that appears after the first period in the requester’s dialstring.
A single asterisk may be used to match any requested service and the special
entry “-” is used to match the case where no specific service was requested
by the dialstring.
You may add additional unique services to the server table, but the following
alphabetically listed services are distributed as part of the standard product:
- The null service name is used to match requests not spec-
ifying a specific service. This default service normally
maps to an invocation of the login.dk program which is
used to provide login initiation services. A user-friendly
system in a trusted environment might invoke a directory
assistance or application program directly as the default.
* The wild card service name is used to match any
requested service name. This facility may be used in con-
junction with the T flag (described later) to reject calls by
classes of users or from classes of sites.
authorize The authorize service is used to establish preauthorized
user name mapping between called hosts. When a local
user requests authorization on a remote host, the remote
host is requested to invoke the authorize sevice. See
authorize(1M) for the proper way to invoke the authorize
command. The pre-authorized user mapping facility is
described in more detail in the User Field section, later in
this chapter.