Sun-Spots Digest, v6n70
William LeFebvre
Sun-Spots-Request at RICE.EDU
Thu May 5 01:53:22 AEST 1988
SUN-SPOTS DIGEST Tuesday, 3 May 1988 Volume 6 : Issue 70
Today's Topics:
Re: mail from uuxqt
New Calculator Tool
Kerberos documents available
Magic Number for running Diag on 4/110
Experience with New LaserWriter II NTX?
CPC TAPEMASTER on Sun-4?
4/110 vs. 3/60 which would you choose?
Image Aquisition, Processing, and Display?
Eight inch removable drives?
How do you unmap, then re-map, a big chunk of memory?
Need info about Systech Unplug and similar devices
Looking for users of NFS (or similar things) for PCs and Macs
Looking for great CASE tool
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----------------------------------------------------------------------
Date: 23 Apr 88 00:13:20 GMT
From: tekbspa!tss!joe at uunet.uu.net (Joe Angelo)
Subject: Re: mail from uuxqt
brad at cayman.cayman.com, in Sun-spots vol6no57 writes...
> I'm on a 3/50 with SUNOS 3.2. Every night root gets mail from uuxqt as...
The problem might be that you have a stray or bad X.* file in
/usr/lib/uucp. Being used to 4.2 UUCP, when I first setup UUCP here, I
created a directory named "X." in the formentioned directory. WHENEVER
uuxqt [BTW: uuxqt is started by uucp and uucico] ran, it would scan this
directory as a file and see lots of binary data when it was expecting the
``text'' of a remote XQT request. Since reading of control characters
usually ends up in a NULL string, uuxqt gets confused and considers a NULL
command an error; uuxqt then mails a message to root -and/or- the starter
of uuxqt, not sure which.
When your UUCP queue is clear, remove any X.* files and directories from
/usr/spool/uucp. The directories that exists here are C., D.$host, and
D.$hostX; all owned and writeable by the same account uuxqt/uucico are
setuid to (uucp).
Joe Angelo -- Senior Systems Engineer/Systems Manager
at Teknekron Software Systems, Palo Alto 415-325-1025
uunet!tekbspa!joe -OR- tekbspa!joe at uunet.uu.net
------------------------------
Date: Thu, 21 Apr 88 11:05:43 EDT
From: Chuck Musciano <chuck at trantor.harris-atd.com>
Subject: New Calculator Tool
After seeing a recent request in Sun-Spots asking about other calculator
tools, I decided to package up our local calculator and release it to
Sun-Spots readers. Hope you like it!
Chuck Musciano
Advanced Technology Department
Harris Corporation
(305) 727-6131
ARPA: chuck at trantor.harris-atd.com
[[ Placed in the archives as two files: "sun-source/calctool.shar.1" and
"sun-source/calctool.shar.2". It can be retrieved via anonymous FTP from
the host "titan.rice.edu" or via the archive server. For more information
about the archive server, send a mail message containing the word "help"
to the address "archive-server at rice.edu". --wnl ]]
------------------------------
Date: Fri, 22 Apr 88 13:01:09 EDT
From: steiner at athena.mit.edu
Subject: Kerberos documents available
Documentation on MIT Project Athena's authentication service, Kerberos, is
available for anonymous ftp on "athena-dist.mit.edu" (currently at IP
address 18.71.0.38), in ~ftp/pub/kerberos.
Documents include the paper given at the Winter 1988 Usenix Conference
(text or postscript), a detailed design document (text or postscript), and
manual pages.
If you can't ftp, and would like a hardcopy, send your request (and US/PTT
mail address) to info-kerberos at athena.mit.edu.
We are currently running a beta test of the software. When the beta test
has been completed, we plan to distribute the code under a free license
(although the encryption library is limited to distribution within the
U.S.). I'll post a pointer when the code is available.
Please post any followup messages to comp.misc.
Jennifer Steiner
Project Leader, Kerberos Development
MIT Project Athena
Below is the abstract from the Usenix paper:
In an open network computing environment, a workstation cannot be trusted
to identify its users correctly to network services. Kerberos provides an
alternative approach whereby a trusted third-party authentication service
is used to verify users' identities. This paper gives an overview of the
Kerberos authentication model as implemented for MIT's Project Athena. It
describes the protocols used by clients, servers, and Kerberos to achieve
authentication. It also describes the management and replication of the
database required. The views of Kerberos as seen by the user, programmer,
and administrator are described. Finally, the role of Kerberos in the
larger Athena picture is given, along with a list of applications that
presently use Kerberos for user authentication. We describe the addition
of Kerberos authentication to the Sun Network File System as a case study
for integrating Kerberos with an existing application.
------------------------------
Date: Fri, 22 Apr 88 14:20:52 CDT
From: arisco at cadillac.cad.mcc.com (John Arisco)
Subject: Magic Number for running Diag on 4/110
Forwarded-by: Jim Knutson <knutson%sw.MCC.COM at mcc.com>
We were unable to run Diag on our new 4/110. A call to Mountain View
revealed that at the time the documentation was printed, the 4/110 had not
been announced, and Sun does not make statements of any kind about
unannounced products.
The address of the Emulex SCSI controller on the mainbus is A000000.
That's (A for apple and Six Zeros). I hope this helps somebody.
arisco
------------------------------
Date: Fri, 22 Apr 88 11:14:06 EDT
From: Chuck Musciano <chuck at trantor.harris-atd.com>
Subject: Experience with New LaserWriter II NTX?
Does anyone have any experience using this new laser printer with their
Sun workstation? Is it faster? Completely compatible? Hold more paper?
Replies sent directly to me will be sumamrized and reposted.
Chuck Musciano
Advanced Technology Department
Harris Corporation
(305) 727-6131
ARPA: chuck at trantor.harris-atd.com
------------------------------
Date: Fri, 22 Apr 88 13:41:44 EDT
From: evans%shanghai-gate.Princeton.EDU at princeton.edu
Subject: CPC TAPEMASTER on Sun-4?
Does anyone out there know if a CPC TAPEMASTER 1/2" tape controller board
from a Sun-2/170 can be used in a Sun-4/280? We would like to move a CDC
1/2" 1600 bpi tape drive from our Sun-2 to a new Sun-4, but save the
expense of a new controller. Thanks in advance.
Joe Evans
ivy.princeton.edu
..!allegra!princeton!ivy!evans
------------------------------
Date: Fri, 22 Apr 88 12:38:56 PDT
From: darrell%cs at ucsd.edu (Darrell Long)
Subject: 4/110 vs. 3/60 which would you choose?
Hello. I am trying to decide whether I should get a 4/110 or a 3/60 with
lots of memory. My work is very CPU and memory intensive. I have heard
that the 4/110 is fixed at 8meg, and cannot be expanded -- is this true?
What about software: are there any special problems that I should know
about with the 4/110?
Thanks, all replies appreciated -- via mail though please.
DL
------------------------------
Date: 22 Apr 88 21:05:09 GMT
From: jensen%gt-eedsp at gt-eedsp.UUCP (P. Allen Jensen)
Subject: Image Aquisition, Processing, and Display?
I am in the process of evaluating Image Processing systems. The
application is an Image Processing laboratory for graduate level research.
We are interested in real-time aquistion and display of video sequences of
up to 10 seconds in length in mono. (and possibly color).
I would be interested in any information and remarks on the various
components of such a system - Camera, Video Tape, Digitizers, Image
processing workstations, etc...
If I get enough replies, I will re-post a summary. Please e-mail all
replies directly to me.
Thanks,
P. Allen Jensen
Georgia Tech, School of Electrical Engineering, Atlanta, GA 30332
USENET: ...!{allegra,hplabs,ihnp4,ulysses}!gatech!gt-eedsp!$me
INTERNET: $me at gteedsp.gatech.edu
------------------------------
Date: Fri, 22 Apr 88 14:34:32 EDT
From: Huong Ton <hton at vax.bbn.com>
Subject: Eight inch removable drives?
I am looking for 8-inch removable drives for a 3/260. Any Sun users out
there know or have heard of 3rd-party vendors for these? Any Sun users
have experience with these ? References, comments, recommendations will
be greatly appreciated.
Please email me directly ( hton at vax.bbn.com) or call me.
Huong Ton
BBN Labs, San Diego (619) 224-3240
------------------------------
Date: Fri, 22 Apr 88 09:47:44 MDT
From: ucbcad!boulder!cadnetix.COM!beres at ucbvax.berkeley.edu (Tim Beres)
Subject: How do you unmap, then re-map, a big chunk of memory?
My question is this: I want to be able to valloc(3) a large chunk of
memory (8 Mb), then mmap(2) this to a device. Depending on circumstances,
I then desire to munmap this memory, free it, then re-allocate a smaller
amount of memory (4 Mb) and mmap that. After scrutinizing the manuals, I
am quite confused. Specifically, the paragraph in mmap(2):
When mapping an area of 128K or more, the kernel releases
the swap area associated with it. Consequently, when the
pages are unmapped, they are marked invalid; the next call
to valloc(2) returns the invalid pages, and any attempt to
refer to those pages results in a segmentation violation.
To avoid this, do not free(2) such large areas; instead,
call valloc(2) again without calling free(2).
It appears that if I call valloc(2) without calling free, I will get a
segv. This I don't want. Has anyone been able to alloc/map, unmap,
remap?
-Tim:
------------------------------
Date: 20 Apr 88 21:15:04 GMT
From: rochester!tropix!scmhcx!tropix!mjs at rutgers.edu (Michael J Shon)
Subject: Need info about Systech Unplug and similar devices
I am looking for information concerning the Systech Unplug terminal
controller, or any similar equipment. Any help will be greatly
appreciated.
Does anyone out there use the Systech Unplug, particularly with the Sun
3/2xx or Sun 4 computers? I have read the ads and I know what it is
supposed to do, but how well does it do it?
Does its performance drop miserably when used to handle uucp traffic? How
many heavy uucp lines do you think it could handle? Will it starve normal
users if uucp traffic gets high, or does it handle increasing load
smoothly? Is it "bursty" or otherwise annoying to use? Does it work
properly with modems? How much does it REALLY cost?
Thanks in advance for any comments. If I get lots of info (and anyone
else cares) I will summarize to the net.
Mike Shon
{rochester, ihnp4, allegra}!tropix!mjs
------------------------------
Date: 20 Apr 88 21:17:53 GMT
From: rochester!tropix!scmhcx!tropix!mjs at rutgers.edu (Michael J Shon)
Subject: Looking for users of NFS (or similar things) for PCs and Macs
I am looking for information from users of Sun's PC-NFS or other similar
products, like TOPS.
How useful are they REALLY? Can you pretend your (potentially diskless)
PC is a workstation, and and keep your files (including executables) on
the NFS server? If you are running MS-Windows or some such thing, can you
have multiple remote logins (or telnets or whatever) active while doing
file transfers and other networky things? If they support systems with
only serial ports, can you do all of the same things (albeit significantly
more slowly)? Speaking of speed- how does ethernet access to NFS files
compare to local access with a typical PC disk (40-80ms ST506)? Is there
a particularly good (or bad) ethernet board for the PC?
Thanks in advance for any comments. If I get lots of info (and anyone
else cares) I will summarize to the net.
Mike Shon
{rochester, ihnp4, allegra}!tropix!mjs
------------------------------
Date: Fri, 22 Apr 88 10:49:05 PDT
From: celeste at coherent.com (Celeste C. Stokely)
Subject: Looking for great CASE tool
I'm trying to locate a good source code control/change management CASE
tool for my Suns (3/280, 3/60s, and 3/50s). I have a small development
group that could grow to as many as 50 people building code in every
language imaginable for all sorts of delivery platforms. The version
control/release engineering problems can grow to be enormous!
I've looked at Aide-de-Camp and CCC (from Softtool), but am distinctly
unimpressed by those products and by the level of support the vendor seems
willing to offer. I looked at Sun's NSE, but it is too immature for our
multi-language, multi-platform needs. In a few more releases it may have
the kind of power we need.
What do you use in your company? What do you think of it? How good is the
vendor support? How easy is it for developers to use?
The following is a [long] list of the features/capabilities I'm looking
for in this product. The ">>>" lines are critical features.
Please email any responses to me, and I'll summarize to the the group if
there is sufficient interest.
CHANGE MANAGEMENT:
>>>-Manages parallel change activities, allowing concurrent changes
>>>-Supports change control at the line, program, application, and system
level
-Tracks changes to any machine readable info, in any language or format
-Labels and records every change
-Reconstructs previous versions
-Gives lots of reporting capability on each of these items
CONFIGURATION MANAGEMENT:
>>>-Supports multiple configurations of product evolving in parallel
>>>-Controls dependencies between all components of a configuration
>>>-Permits selected changes to be applied across all or some configurations
-Allows all components of given product or application to be organized and
managed as a single configuration
-Identifies and controls all configurations (version)
-Stores data by differences to a baseline
-Can report on all statuses, components, and dependencies
-Permit selected changes to be applied across some or all configurations
-Configuration-ease of including/not including items in a set
(for building, editing, etc.)
CONTROL:
>>>-Adjustable level of archiving
>>>-Executes test cases and compares test results
>>>-record changes can be made with any editor, word processor, workstation, or
remote computer system
>>>-defines different levels of authority and functional responsibility
for different users
>>>-controls who gets to access what information
-selective reports based on criteria like differences, changes,
dependencies, users, dates, times, etc.
-audit trails
-Creates reports on control data
ENGINEERING USE:
>>>-Ability to tailor the tool to meet our specific needs
>>>-Programming language independance
>>>-Support of Parallel development, and the merging of parallel development
tracks
>>>-Ability to undo any change
>>>-Concurrency control (lock item when it's being modified)
-Support of serial development
-Storing non-ascii data, such as graphics and screen displays
MANAGERIAL USE:
>>>-Tool maintains more than source (documents and other info)
-Reporting capability based on selected criteria
ADMINISTRATIVE:
>>>-Tool is extremely well supported by the vendor
>>>-Ability to read non-tool created files into the tool
>>>-Assign different levels of authority and functional responsibility
for different users(not everyone can edit a file, for instance)
>>>-Reasonably small amount of disk space consumed by the tool itself
-Reasonably small amount of disk space needed for the data for the tool (src,
reports, etc.)
-Automatically provide audit trails
-Adjustable level of archiving
-Disaster recovery
..Celeste Stokely
Coherent Thought Inc.
UUCP: ...!{ames,sun,uunet}!coherent!celeste Domain: celeste at coherent.com
Internet: coherent!celeste at ames.arpa or ... at sun.com or ... at uunet.uu.net
VOX: 415-493-8805
SNAIL:3350 W. Bayshore Rd. #205, Palo Alto CA 93404
------------------------------
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