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Problems.DOC
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1991-06-01
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PROBLEMS.DOC
Matthew Dillon
891 Regal Rd.
Berkeley, Ca. 94708
USA
uunet.uu.net!overload!dillon or
dillon@overload.Berkeley.CA.US
CED
Those of you using the CED editor need to use the sticky option.
Unfortunately, CED requires that STICKY be the last argument so
what you really need to do is set the editor command in UULIB:Config
to execute a script file that runs CED with the filename and STICKY
option.
The format for CED is: CED file -sticky
A script file can be found in UUCP:SC/UUCed
MODEMS AND GETTY
There are several possible sources of problems in setting up
UUCP. The major problem areas in order of likelyhood are
listed below:
(1) The modem is expecting a protocol that Getty has not
been told to use (XON/XOFF, 7WIRE, none)
If the modem uses 7-wire use the -7 option for Getty, else it is
assumed the modem uses no protocol. Normally you specify -7 but
the modem will probably work just fine whether you specify it or
not.
(2) The modem does not hangup when DTR is dropped
All modern modems hangup when DTR is dropped. Usually a dip switch
enables/disables the option. If it is impossible to drop a
connection by dropping DTR you can use the -d0 option to make Getty
use the +++ sequence. This only works if you do not specify a dumb
modem in the -M option.
NOTE: older versions of the A2232 multi-port serial.device do not
drop DTR when the device is closed. There is no way to drop DTR
with these devices.
When you cannot use DTR to drop a connection you must use the -d0
option so Getty will use +++ ATH0 instead.
(3) The modem does not understand simple AT commands or does
not generate a CONNECT message.
If the modem does understand dropping DTR but does not understand
simple AT commands or generate a CONNECT message use -c0 -Md (no
connect msg and dumb modem). In this case the baud rate must be
known and specified with one or more -B options. When no CONNECT
message is available Getty does not know what the connect baud rate
actually is. It will begin by trying the first -B option and
switch to the next whenever a line-break is received.
(4) Baud rate problems
The default modem type when no -M option is specified for Getty is
a hays modem. If you have a multimodem you can use -Mm and the
baud adjust options for Getty. Normally you specify a -B option
for each baud rate the modem is capable of connecting at. If the
modem generates a CONNECT message you need only specify one -B
option that is used to reset the modem and Getty will automatically
handle the CONNECT messages.
If your modem always talks to your Amiga at a given baud rate no
matter what the CONNECT message says then use a single -B option to
specify that baud rate then the -A option which tells getty to
ignore any baud rate specified in the CONNECT message.
(5) GETTY CRASHES or FREEZES, TERMINAL PROGRAMS or UUCICO FREEZES
Due to bugs in the serial.device, it is possible that Getty
and/or another program using the serial.device while Getty is
active will crash or freeze.
To get around these problems you MUST use the -d0 option to
disconnect (+++ sequence), both for Getty and for UUCico.
OUTGOING CALLS
Unfortunately Getty handles only incomming calls. UUCico deals without
outgoing calls itself. Currently you must specify the proper baud rate
in the L.Sys file for uucico to work properly. UUCico currently ignores
any connect message.
Disconnecting will work the same way Getty handles it. If there is no
Getty running disconnecting works by dropping DTR.
NEWS
RNews supposedly takes less memory now. It still takes quite a
hunk and you may run out, which will cause queue files to be
left in your spool directory and possible temporary files in
your news directory.
POSTING NEWS
If your feed does not accept posted articles there are two possible
problems.
(1) you have set your timezone incorrectly, not likely but at least
one person has done that.
(2) The feed does not accept the ordering of the news headers, meaning
it is probably running outdated news software. Currently no solution
for this but I am making an attempt to organize headers such that
older software will accept them.
MAIL ADDRESSES
If you have problems queuing mail check your L.sys file. Try emailing
to the adjacent node directly. E.G. if you can connect to 'foo' try
emailing a test message to 'foo!postmaster'. If you do not wind
up with three queue files in UUSPOOL: then your L.sys file
probably has a corrupted entry for foo. Whenever you email to somebody
three files should end up being added to UUSPOOL: and whenever you
UUCico to a given machine the spool files in question should be deleted
as they are sent. When UUCico receives mail from the remote machine it
will download the remote queue files to UUSPOOL: then uuxqt them. That
is, the remote queue files should will be placed temporarily in
UUSPOOL:, unpacked with rmail and placed in UUMAIL:, then deleted.
The most common of all problems is an address like this:
a!b!c!d!e!user%g
In UUCP land this means: a->b->c->d->e->g->user
In ARPA land this means: g->a->b->c->d->user
To get around the problem you must determine the proper sequence
and convert the address to SOLELY bang-paths (!). DMail has a
special variable ('help set' from dmail) that specifies fields to
find the return address in which may be helpful. For especially
strange addresses you may have to look at the mail headers with
the 'h' command from dmail.
REMOTE SHELL STARTUP
You can cause Getty to start up a remote CLI with the following entry:
<login>,<password>,<gid-dummy>,0,(AuxShell),ram:,execute uucp:sc/UUShell
where uucp:sc/UUShell is a simple script file.