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Thread View: comp.protocols.ibm
2 messages
2 total messages Started by Peter Karrer Mon, 17 Jan 1994 19:57
Sockets on MVS
#1750
Author: Peter Karrer
Date: Mon, 17 Jan 1994 19:57
30 lines
2145 bytes
Hello,

We have a set of existing APPC appliciation which we would like to convert
to TCP/IP sockets. The applications in question run NS/DOS under Windows
and talk to APPC/MVS. They are very simple (only one-to-one conversations).

Writing a simple sockets server program on MVS is easy; however, I
see two administrative problems implementing a sockets solution:

(1) Before a client connects to a server program, the server program
must be running. As far as I know, there is no such thing as an inetd
- which would schedule servers on demand - in TCP/IP for MVS.

(2) The server program must run under the security context of the connecting
user. Of course, we would like to avoid to ask for userid/password each time
a connection is made; but we must take care not to break security rules (e.g.
store an unencrypted password on the PC).

Both these issues are no real problem with APPC; APPC/MVS has a scheduler,
and an NS/DOS user can specify a userid/password pair which is sent to a
particular partner node each time a conversation is allocated.

However, we would like to use sockets because we have more options for
client software on PCs (and Macs; NS/DOS is a memory hog and not 100%
stable under Windows).

Any ideas?

-- 
Peter Karrer                                   pkarrer@bernina.ethz.ch
Re: Sockets on MVS
#1749
Author: Jim Eberle
Date: Fri, 21 Jan 1994 19:11
8 lines
1198 bytes
    If your application is running on CICS, IBM has a product called
    Sockets for CICS which includes COBOL & C API's for CICS programs. It
    also has a listener transaction which can be started automatically
    when the region is brought up. I know there is a competing product,
    but I can't remember its name.

    Cheers
    JimE
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