Sun-Spots-Request@RICE.EDU (William LeFebvre) (05/04/88)
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 Send contributions to: sun-spots@rice.edu Send subscription add/delete requests to: sun-spots-request@rice.edu Bitnet readers can subscribe directly with the CMS command: TELL LISTSERV AT RICE SUBSCRIBE SUNSPOTS My Full Name Recent backissues are available via anonymous FTP from "titan.rice.edu". For volume X, issue Y, "get sun-spots/vXnY". They are also accessible through the archive server: mail the request "send sun-spots vXnY" to "archive-server@rice.edu" or mail the word "help" to the same address for more information. ---------------------------------------------------------------------- Date: 23 Apr 88 00:13:20 GMT From: tekbspa!tss!joe@uunet.uu.net (Joe Angelo) Subject: Re: mail from uuxqt brad@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@uunet.uu.net ------------------------------ Date: Thu, 21 Apr 88 11:05:43 EDT From: Chuck Musciano <chuck@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@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@rice.edu". --wnl ]] ------------------------------ Date: Fri, 22 Apr 88 13:01:09 EDT From: steiner@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@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@cadillac.cad.mcc.com (John Arisco) Subject: Magic Number for running Diag on 4/110 Forwarded-by: Jim Knutson <knutson%sw.MCC.COM@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@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@trantor.harris-atd.com ------------------------------ Date: Fri, 22 Apr 88 13:41:44 EDT From: evans%shanghai-gate.Princeton.EDU@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@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@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@gteedsp.gatech.edu ------------------------------ Date: Fri, 22 Apr 88 14:34:32 EDT From: Huong Ton <hton@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@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@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@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@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@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@coherent.com Internet: coherent!celeste@ames.arpa or ...@sun.com or ...@uunet.uu.net VOX: 415-493-8805 SNAIL:3350 W. Bayshore Rd. #205, Palo Alto CA 93404 ------------------------------ End of SUN-Spots Digest ***********************