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Dialing into a UNIX box via a modem

Posted on 1997-05-08
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Last Modified: 2013-12-23
I am trying to setup up my UNIX box running HP-UX 9.07 for
dial-up connection using a modem. I currenly have a US Rob.
28.8 modem connected to serial port on the back of my box
via a "Smart Cable". I have successfully set up the modem
for dial-out. Meaning I have set up uucp, to down/upload email from a local ISP. I can also use cu successfully. But now I want to be able to dial-in to the UNIX box from a remote site. I know that there is a init-getty-login-shell
sequence, but I'm having trouble finding information on
editing my inittab and gettdefs files. I'm also having trouble trying to have my modem pick up the phone when I dial into it. I have flipped the DIP switch #5 on the modem,
to enable auto-answer, but it doesn't want to seem to answer
incoming calls still. But once it does, how does the OS know
to spawn the getty to start the login sequence?

Any help would be great,

- Rudy.
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Question by:rudyxiv
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Accepted Solution

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saji042497 earned 100 total points
ID: 1582064
I haven't really worked with this falvour of unix. But I don't think its going to be a lot different.

You have to first get your modem to accept incomming calls. This has to be done either with the dip switchs or the AT command set.

During the UUCP configuration(from the sysadm menu) you will be prompted for an option to select receive/receive & send/send option. Your uucp configuration will be automatically set based on this option you select.

The 'uugetty' program will be respawned in the inittab for the particular serial line. You can try this manualy. The gettydef entry has to be matched with the baud rate of your modem. You you may have to play around with RTSFLOW/CTSFLOW/IXON/IXOFF to match your setting.

Also important is the cable you will be using to connect the modem to the system. This has to be a full handshake cable.



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