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- Newsgroups: biz.sco.general
- Path: sparky!uunet!spool.mu.edu!umn.edu!csus.edu!beach.csulb.edu!elliottm
- From: elliottm@csulb.edu (Mike Elliott)
- Subject: Trying to get dial in on COM2
- Message-ID: <ELLIOTTM.92Dec31161849@beach.csulb.edu>
- Lines: 121
- Sender: elliottm@csulb.edu (Mike Elliott)
- Organization: Cal State Long Beach
- Date: Fri, 1 Jan 1993 00:18:52 GMT
-
- I continue to be astounded at the difficulty in using modems with SCO
- version 3.2.2. Having a 2400 baud Hayes compatible modem on COM2 seems
- like the most common possible setup. However, the ODT manuals only give
- hints as to minimum requirements -- they don't just state what has to be in
- existence. However, since others have undoubtedly solved this problem, I
- appeal to the informed to endow me with the mystical arcania required to
- complete the job. I have done the following:
-
- 1) As per page 216 in Administering ODT-NET:
- Changed owner and group of /dev/tty2a and /dev/tty2A to uucp.
- ls -l now shows:
-
- crw-r----- 1 uucp uucp 5,136 Dec 28 12:41 /dev/tty2A
- crw-r----- 1 uucp uucp 5, 8 Dec 28 12:40 /dev/tty2a
-
- 2) As per page 216 in Administering ODT-NET:
- Modified the last two lines in /etc/inittab to read:
-
- t2a:2:off:/usr/lib/uucp/uugetty -t60 tty2a 2
- t2A:2:off:/usr/lib/uucp/uugetty -t60 tty2A 3
-
- 3) As per page 217 in Administering ODT-NET:
- Modified /usr/lib/uucp/Devices to read
-
- # Standard modem line also used for dialin
- Direct tty2a - 1200-2400 direct
- ACU tty2A - 1200-2400 /usr/lib/uucp/dialHA24
-
- 4) As suggested by a knowledgeable user:
- Modified the setuid of kermit to allow arbitrary users to dial out:
-
- chmod u+s /usr/local/bin/kermit
-
- I was able to confirm at that point that users could use kermit to dial
- out.
-
- 6) As per step 15, page 221 in Administering ODT-NET:
-
- enable tty2A
-
- which responded:
- enable: tty2A not enabled : already enabled
-
- 7) Attempted to dial in from another computer. The modem did not answer.
-
- 8) I verified that the electrical connections were correct, by rebooting the
- computer to MS-DOS and running Procomm+ in host mode. Procomm+ was able
- to make the modem answer without any intervention, and upon answering,
- Procomm+ displayed its login prompt.
-
- 9) Rebooted to Unix, and used cu to set the Procomm modem initialization
- string in two steps:
-
- cu -ltty2a dir
- ATE1V1X4Q0&C1&D2 S7=255 S0=0
-
- cu -ltty2a dir
- ATS0=1
-
- 10) Redialed from another computer. The modem answered, eventually lighting
- the MR TR -- -- OH CD AA HS lights. No prompt was displayed. When the
- remote computer sent a character, the RD light flashed. The SD light
- never displayed any activity.
-
- 11) As per page 98, TIPS section of the User's Guide, under the heading
-
- Modem Answers, But No Login Prompt
-
- . . . use the AT&C1 command
-
- which was interpreted to mean
-
- cu -ltty2a
- AT&C1
-
- This caused the TR light to go off briefly, then return. The modem
- still answered, and no login prompt appeared. No change in behavior.
-
- 12) Continuing from page 98,
-
- enable /dev/tty2A
-
- responded with
-
- enable: tty2A not enabled : already enabled
-
- 13) The manual then suggests veriifying that the modem is using the
- correct /etc/gettydefs entry and is selecting the proper baud rate. It
- suggests that the modem port device line in /etc/inittab should look like
-
- t2A:2:off:/usr/lib/uucp/uugetty -t60 tty2A 3
-
- which is what it was set to in step (2). However, the line now reads:
-
- t2A:2:respawn:/usr/lib/uucp/uugetty -t60 tty2A 3
-
- which I assume is a harmless difference (since Unix made the change).
-
- 14) Finally, the last bit of advice is to verify that entry 3 in
- /etc/gettydefs is the 2400 baud entry. The _fourth_ entry is the
- 2400 baud entry (after 19200 9600 and 4800) which looks like
-
- 2400# B2400 OPOST ONLCR TAB3 BRKINT IGNPAR IXON IXANY PARENB ISTRIP\
- ECHO ECHOE ECHOK ICANON ISIG CS7 CREAD # B2400 OPOST ONLCR\
- TAB3 BRKINT IGNPAR IXON IXANY PARENB ISTRIP ECHO ECHOE ECHOK\
- ICANON ISIG CS7 CREAD #login: #1200
-
- So, at this point, I ran out of manuals to look in. However, this is such
- a common situation that lots of folks must have solved it, so ... could
- some kind soul give me a clue as to what to do next?
-
- Thanks,
- Mike Elliott
- elliottm@csulb.edu
-
-
-
-
-
-
-
- --
-
-
- Mike Elliott
- elliottm@beach.csulb.edu
-