[comp.sys.atari.st] The PC7 Archive

dyer@math.lsa.umich.edu (Jon Brode) (12/02/88)

In article <2590@m2-net.UUCP> moses@m-net.UUCP (Eric Doggett) writes:
>Hello, I was wondering if anyone knows what happened to him1 (35.1.1.43) I
>have tried to get on, but it gives me an invalid p[assword and kicks me out.
>Did they do this on purpose, if so what reason..

     Hello all. We've been forced to make some changes here at PC7. Apparently,
our systems group didn't appreciate the way Howard kludged the anonymous ftp.
It was actually sort of a security hole, but enough of that. In its place, we
have real anonymous ftp. The new procedure (and hopefully last) goes like this...

	      ftp him1.cc.umich.edu              (or 35.1.1.43)
	      name: anonymous
	      pass: whatever
	      cd PC7:
	      ls ?                               (NB: The wildcard is ? not *)

     Do not try to ftp the old way, it just won't work. Also, as a reminder,
the archive on Clio isn't supported anymore, it will be destroyed in a few
days. Everything on there is on PC7. Many people have sent me mail about
problems with accessing PC7. I'm sorry I couldn't answer all of your messages,
but the problems should be fixed now. PC7 is not on a unix machine, it needs
a special piece of hardware (the HIM) to be able to ftp. The HIM is not a
production model yet, thus it is flakey sometimes. Be patient and try again
later if you have problems. If you are still having problems, then send me
a message. 

     Still working on the mail access, and still having problems...

Jon Brode  --  dyer@math.lsa.umich.edu                Jesse '92!
         Moderator of PC7

dyer@math.lsa.umich.edu (Jon Brode) (03/17/89)

A few months ago, I posted this to help out the people who were
having trouble accessing our archive. This is a revised version.
If you can already get files from us, then this article is
pretty much pointless for you.

                         Presenting....
 
 
                    Jon Brode's PC7 Cookbook
 
    The PC7 archive is stored on an IBM 3090-600e mainframe. It uses an
ugly, awful, old operating system called MTS. It doesn't like talking to
un*x machines and such, as a matter of fact it couldn't until our systems
group installed the HIM, the host interface machine. We have two of them,
but only the first one is available for anonymous ftp. This ugly little
kludge has been just recently installed, thus it is still buggy. If you
have trouble connecting or trouble with dropped connections, that's what's
wrong. When that happens, try again later when the HIM is in a better mood.
 
    We used to run this archive on Clio and Euterpe. They were Suns and 
performed ftp transactions relatively well. We outgrew those machines
so we had to transfer external archive retrievals to the 3090. (the
archive was always available on the 3090 for local users) Rumor has it
that we will be moving back to some Suns, but that may be a few months
off.
 
    You can only access PC7 (the name of the archive) if you have ftp. We'd
like to set up mail access, but we're having some problems with that. Anyway,
if you have ftp, type 'ftp him1.cc.umich.edu' or 'ftp 35.1.1.43', some
systems prefer one over the other, but they both get you to the same place.
Once you are connected, our system will prompt you for a name. Type
'anonymous'. Then you will be prompted for a password. Type whatever you
want, its not picky. Then you will be given a nice 'ftp>' prompt. 
Congratulations! You have just entered the realm of MTS. (the him1
name will be going away soon, but it still works. the new name will
be posted as soon as it goes into effect)
 
     That will put you in the directory of the FTP account. There's nothing
there, so you will have to change to the PC7 directory. Type 'cd pc7:'. That
will put you in our directory. Actually, directory is a misleading term
because MTS doesn't have a hierarchical filing system, thus all of our files
are clumped together into one huge mass. We don't like it either, but there's
nothing we can do about it. If you want to see all of the files that we have,
type 'ls ?'. Note: MTS uses a ? as a wildcard, not a *. This will flood
your screen with filenames. To get a more manageable listing, use a prefix
with the wildcard characters. For example, 'ls disk?' lists all of the
filenames that start off with the letters 'disk'.
 
     Unfortunately, our mainframe limits us to 12 character filenames, which
means that they aren't all that descriptive, but luckily allows us to name
them with ST compatible names. If you want to find out what the files are,
you could read the '!index' file. The only problem is that it is pitifully
out of date. I would like to get it updated soon, but I just don't have the
copious amounts of spare time that I once did. Until I find the time to 
update the index, you'll have to try to determine what the programs are
by the filename. Incidentally, this file is not binary, do not try to
transfer it as such. Expect an update in May.
 
     And now, the fun part, how to get our files down to your local system.
After you've 'cd'ed to PC7, and found the file you want to get, type
'binary'. This will let you transfer the arc files properly. You *must*
set binary when you ftp arc files. To get the file you want, type
'get filename', where filename is the name of the file you want. Then you
can sit back and wait for the transfer to complete. There is a command
called 'mget' to let you get multiple files. Remember when you use it that
the MTS wildcard is ?, not *. Some ftp implementations have a 'hash'
command that lets you know how much has transfered. Other ftp implementations
have a 'bell' command that beeps at you when your transfer is complete.
 
     Now comes the tough part, transfering the file to your ST. There are
many, many ways to do this. The most popular seems to be kermit, so I'll
describe how to use Uniterm's kermit. Ask your local sysadmin how to run
kermit. Then, make sure that you have parity and stop bits set properly
on both sides. If they aren't, you'll get bad CHK's and other nasty errors.
After that, type 'set file type binary'. (On VMS systems, you have to 
set file type fixed, instead of binary) Then type 'send filename', and
things should be set on that side. From Uniterm, hit Alt-T and click the
box that says binary. Then click the box that says 'receive' and supply
the fsel box with a filename. From there you can sit back and relax again.
 
     Once you have the file on your ST, you have to unarc it. Most of
the files on PC7 were arced with the old version of arc, but a lot of
the newer stuff is done with the new version. To unarc the old stuff, 
use dcopy, to unarc the new stuff use arc 5.21b. Arc 5.21b will unarc
the old stuff too, but dcopy is *much* faster. 
 
     That just about wraps it up, folks. If you have anymore problems,
send me some e-mail. If you want to say hello, send me some e-mail. If
you want to compliment the fine job (IMHO) that I'm doing, send me some
e-mail. If you want to flame me or complain, I'll give your name to my
father, the IRS auditor. :-)
 
 
Jon Brode  --  dyer@math.lsa.umich.edu     usercptb@umichub.BITNET
 Moderator of PC7, Atari-God :-)