HDTenEightyP/NetNews huggingface dataset:
From: herman@nosc.mil (John W. Herman)
Subject: Re: How do you back up a terabyte?
Organization: Naval Ocean Systems Center, San Diego, CA
Date: Thu, 17 Dec 1992 01:43:33 GMT

twl10@ccc.amdahl.com (Tom Littauer) writes:

>In article <1992Dec16.161430.1109@cc.ic.ac.uk> cmaae47@imperial.ac.uk writes:
>>In article <ericw.724459057@hobbes>, ericw@hobbes.amd.com (Eric Wedaa) writes:
>>- 
>>- The subject says it all.  "How do you back up a terabyte?"
>>
>>With great care.

Paper tape.  There is a company which advertizes the ability to back up
1 terabyte to a paper tape real.  Honest
Newsgroups: comp.unix.admin
From: efros@leopard.east-slc.edu (Alyosha Efros)
Subject: Re: managing passwd on two systems
Organization: East High School, Utah
X-Newsreader: TIN [version 1.1 PL7]
Date: Wed, 16 Dec 92 03:20:16 GMT

Thanks to everyone who answered my original question.  Most responces
suggest that I should use NIS (Yellow Pages in my case) to get the job
done. I installed YP on both machines one acting as a server, the other as
a slave.  Everything works fine if I don't touch the passwords. But here
is my problem:
  First, I installed YP by copying /etc/passwd to /var/yp/src/passwd,
making passwd on yp, and cleaning up /etc/passwd file from any user
entries. Then I aliased passwd to yppasswd and everything was fine until
my teacher decided to create a new account. It appeared that yppasswd
ALWAYS asked for the old password even on the brand new account.  So this
didn't work...
  Second, somebody suggested to me to link /etc/passwd and
/var/yp/scr/passwd.  The hard link didn't work because they are on
different devices so I did a soft link.  But this doesn't work either
because to set up an account one writes to /etc/passwd and to change a
password with yppasswd one uses /var/yp/src/passwd... So, what do I do?  

Thanks in advance,
-Alyosha
==========
Alyosha (Alexei) Efros Jr. (12th grade!)	efros@leopard.east-slc.edu
System Manager & Computer Club President	efros@peruvian.utah.edu
East High School, Salt Lake City, Utah		(801) 272-5948
	"Don't let school interfere with your education"

Newsgroups: comp.unix.admin,comp.dcom.lans.ethernet,comp.dcom.lans,comp.dcom.lans.misc
From: tdphette@mke.ab.com (Thad Phetteplace x4461)
Subject: Re: How to network 3-4 home machines cheaply?
Organization: Allen-Bradley Co.
X-Newsreader: Tin 1.1 PL4
Date: Sat, 12 Dec 1992 18:38:03 GMT

bair@telebit.com (Scott Bair) writes:
[bunch of stuff deleted]
: 
: I've not seen this solution appear yet. Why not get a multiport tranceiver
: like an MT800 from cabletron or a delni and set it in local mode, run
: aui drops where needed and be done with it.
: 
: Scott Bair 
: Systems Engineer for Telebit
: bair@telebit.com
: 

This is kind of what I was refering to in an earlier post when I used
the buzz phrase *passive multi-drop hub*.

In an earlier post I wrote.
: >
: >You cannot connect two endpoint thicknet nodes directly together.
: >There must be a properly terminated bus between the nodes.  This
: >means a multi-drop hub, a backbone with vampire taps, or something
: >like that.  A passive multi-drop hub might work.  A lot places have
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
: >been converting from thicknet to twisted pair and may have some old
: >stuff in a storage room they would be willing to unload.  Thicknet
: >cable is more expensive then twisted pair or thinnet, however, so you
: >should compare the cost of the cable to the cost of transceivers and
: >other media (thinnet ot twisted pair).
: >

By *might work* I really meant *could be affordable*.  We have a lot of
Delni and TCLs sitting in storage here at Allen-Bradley that we
occasionally use when we need a quick, temporary network.  Though the
original poster said he had thicknet ports on his computers, I assumed
he meant AUI,  Many people (me included) incorrectly talk about thicknet
when they are really refering to an AUI drop cable.  

So, rewording my earlier statement, shielded AUI cable is more expensive
then twisted pair or thinnet.  It also cannot be run for as long a
distance.  This is not really a problem unless you have a really big
house or you try to get by with cheaper cable that is under spec.

--
Thad Phetteplace
Network Systems Analyst, Allen-Bradley Co.
Phone: (414)382-4461
Email: tdphette@mke.ab.com

The opinions expressed here are entirely my own and not that of my employer.
I am not a slob, I am simply doing an experiment in domestic entropy!

Newsgroups: comp.unix.admin,comp.dcom.lans.ethernet,comp.dcom.lans,comp.dcom.lans.misc
From: les@chinet.chi.il.us (Leslie Mikesell)
Subject: Re: How to network 3-4 home machines cheaply?
Organization: Chinet - Public Access UNIX
Date: Fri, 11 Dec 1992 18:22:45 GMT

In article <CSS.92Dec9123539@tron.stx.com> css@tron.stx.com (Chris Shenton) writes:

>My housemate and I want to network our machines (3 UNIX and 1 LISP)
>together. Three of these have Thicknet connectors, one has no ethernet
>yet. What's the cheapest way to connect 'em all up?

>I could get a few Thick-to-10BaseT transceivers, but wouldn't I then
>have to buy a 10BaseT hub to interconnect them? What would be the
>price on a 4-8 channel hub? Could I at least connect two machines by a
>direct (point-to-point) 10BaseT line?

If the machines have AUI connectors you need a tranceiver in any case
and you can get thick/thin/10BT on the other end for about the same
price.  You should be able to find an 8 port unmanaged 10BT hub for
$400 or less, and I'd go that route if at all possible because:
 (a) If you already have 4 machines you'll probably end up with more.
 (b) You probably like to move them around - twisted pair wire is cheap.
 (c) You'll probably get portable units in the future.
With 10BT you can disconnect any unit without bothering anything else.
For example I have a lunchbox size 486 on my desk at work (w/500M disk
and a tape drive...) that I can unclip and take home or set up a temporary
network elsewhere without worrying about re-terminating any cables.

Les Mikesell
  les@chinet.chi.il.us
Newsgroups: comp.unix.admin
From: wllarso@sandia.gov (William L Larson)
Subject: Re: How do you back up a terabyte?
Organization: Sandia National Laboratories
Date: Wed, 16 Dec 92 16:23:26 GMT

In article <ericw.724459057@hobbes> ericw@hobbes.amd.com (Eric Wedaa) writes:
>And does anyone remember the real reason why dump/tar/cpio is not 
>a good thing on an acitve filesystem?

There was a presentation at the USENIX-LISA V (1991) on this issue, I
have a copy from the proceedings.  Look at "Issues in On-line Backup" by
Steve Shumway - SunSoft, Inc.  The problem with on-line backups is the
possibility of modification of the filesystem structure during backups
(to hopefully paraphrase Steve's article).  If the structure is modified
while the backup is in process, then the structure cannot be preserved.
For example, dump uses a two pass procedure, first find all of the files
and directories, and then second copy the files and directories.  What
would happen if a directory were added/deleted/moved after pass one but
before pass two?  Steve did an excellent analysis of the possibilities.
Similar possibilities also occur when using tar and cpio.

Steve, if you are out there, are copies of your analysis available
on-line?
Newsgroups: comp.unix.admin
From: dwj@sactoh0.sac.ca.us (Daniel W. James)
Subject: Re: Management of Jr. Unix Sys Admin
Reply-To: ccpoabt!dan@sactoh0.SAC.CA.US (Daniel James)
Organization: CCPOA Benefit Trust Fund
Distribution: na
Date: Fri, 11 Dec 92 16:58:19 GMT

raj2@ra.msstate.edu (rex allan jones) writes:

>	I would appreciate advice from Sys Admins in some kind
>of lead or supervisory position.  This is my first shot at
>such a position, and I don't want to screw it up.

I think this is an interesting question myself.  I'm in a somewhat related
position, in that I am the only Unix person, but my boss wants a back-up in
case of system troubles.  I've sent her to training, but in my experience,
I took spanish for several years, never used it, shortly thereafter forgot
it.

I need some simple tasks to keep her knowledgable.  Obviously, there is no
simple answer, but I'd be interested in hearing some similar experiences
that others have been through.
-- 
_______________________________________________________________________________
Daniel W. James      In Cal: (800) 468-6486 |  ccpoabt!dan@sactoh0.SAC.CA.US
CCPOA Benefit Trust Fund     (916) 923-6080 | ...!pacbell!sactoh0!ccpoabt!dwj
3780 Rosin Court, Suite 250                 +----------------------------------
Newsgroups: comp.unix.admin
From: tma@encore.com (Thanh Ma)
Subject: How to move a filesytem?
Organization: Encore Computer Corporation
Date: Thu, 17 Dec 1992 22:02:59 GMT

My /usr filesystem is full and I would like to move it to a newly-
installed second hard disk with the same name /usr. Please show
me how to do it. Also how do i reuse the space that /usr on the
1st disk occupied?

Thank you.

Thanh Ma
tma@encore.com
From: raymond@nic.cerf.net (Raymond Roque)
Newsgroups: comp.unix.admin
Subject: restricted ftp account
Date: 12 Dec 92 05:00:10 GMT
Organization: CERFnet

Dear Sir/Madam:

I'm trying to setup a restricted ftp login account with the use of the "chroot" command. I'm still new at this and needs some help.

Got some notes in the Internet on setting it up.

I created a subdirectory /var/spool/rftp.  Underneat it was the following directories: bin, dev, usr, /usr/lib, tmp, and etc.  
This will be my new root.  

I then copied ls, pwd, and mkdir from /bin to /var/spool/rftp/bin.  Copied the passwd and group file into /var/spool/rftp/etc 
and edited out the other accounts with password. 

Since I'm using a Sun Station, I created the /dev/zero files 
and copied /usr/lib/lib.so* to ~rftp/usr/lib.

Added the line "rftp   22/tcp" on my /etc/services NIS map file. 
Typed "rftp   stream   tcp   nowait   root    /etc/in.rftpd   in.ftpd" on my /etc/inetd.conf file and issue kill -HUP pid of inetd to reset the network deamons.

Following the short note, I then typed the shell script it told me into a file /etc/in.rftpd

 #!/bin/sh 
 /usr/etc/chroot /var/spool/rftp /usr/etc/in.ftpd $* 

Lastly, in the /etc/passwd and /var/spool/rftp/etc/passwd files - I created an account:
  testacct:*:160:60:FTP account:/var/spool/rftpd:/etc/in.rftp

But when I logged into the ftp account, it gave me a message
"530 User testacct Access denied".

I noticed that when I boot up my machine and the inetd deamon starts, it flags me "rftpd/tcp: service unknown" even when it was define in the /etc/services file.

The note also mentioned to "give them (ftp account) a shell that is in /var/spool/rftp/etc/shells.  
My entry in this file are:
  /bin/sh
  /bin/csh

Can you please explain more on this please?  

There is probably a simple step that I neglected to do.

Sincerely,
Raymond Roque

Systems Administrator
International Documentation

raymond@cerfnet.com
Newsgroups: comp.unix.admin
From: rich@endeavor.storage.tandem.com (Richard Sanders)
Subject: Re: O'Reilly DNS book
Reply-To: rich@endeavor.storage.tandem.com
Organization: Tandem Computers Inc.
Date: Mon, 14 Dec 1992 21:04:30 GMT

Yes, I bought one at Computer Literacy, $29.95. 
ISBN 1-56592-010-4

---

Rich Sanders
UNIX Systems Support
rich@storage.tandem.com
sanders_rich@esp.tandem.com
408-285-7752


Newsgroups: comp.unix.admin
From: tucker@bedford.progress.COM (Kyle Tucker)
Subject: Re: Best method for filesystem copy?
Reply-To: tucker@bedford.progress.COM
Organization: Progress Software Corp.
Date: Tue, 15 Dec 1992 16:04:58 GMT

The best way I've found to do this, thanks to some DEC tech rep, is right
in the tar man page. It keeps all permissions, ownership and links fully
intact.

cd fromdir; tar cf - . | (cd todir; tar xf -)

- Kyle
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Kyle Tucker - Email Administrator  | 		Progress Software Corporation
tucker@bedford.progress.com 	   |		14 Oak Park
(617)280-4565			   |		Bedford, Mass. 01730
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Newsgroups: comp.unix.admin
From: subbarao@fc.hp.com (Kartik Subbarao)
Subject: Re: How to move a filesytem?
Originator: news@nimaster
Reply-To: subbarao@fc.hp.com
Organization: putchar('I'); for (i = 0; i < 3; i++) putchar('E');
Date: Fri, 18 Dec 1992 15:30:31 GMT

In article <1992Dec18.110817.6773@ghost.dsi.unimi.it> serini@ghost.dsi.unimi.it (Piero Serini) writes:
>tma@encore.com (Thanh Ma) writes:
>
>>My /usr filesystem is full and I would like to move it to a newly-
>>installed second hard disk with the same name /usr. Please show
>>me how to do it. Also how do i reuse the space that /usr on the
>>1st disk occupied?
>
>In single user mode:
>
># cd /
># mkdir usr2
># mount /dev/newdisk /usr2
># cd usr
># tar cf - . | compress | (cd /usr2 ; uncompress | tar xf - )
>
>this will be quite long ...

Of course it will, if you put compress and uncompress there. Why do that?

	-Kartik
Newsgroups: comp.unix.admin,comp.dcom.lans.ethernet,comp.dcom.lans,comp.dcom.lans.misc
From: montjoy@thor.ece.uc.edu (Robert Montjoy)
Subject: Re: How to network 3-4 home machines cheaply?
Organization: University of Cincinnati
Date: Fri, 11 Dec 1992 22:14:18 GMT

css@tron.stx.com (Chris Shenton) writes:
>: 
>: My housemate and I want to network our machines (3 UNIX and 1 LISP)
>: together. Three of these have Thicknet connectors, one has no ethernet
>: yet. What's the cheapest way to connect 'em all up?
>: 
>: Seems like running a thicknet rib in the attic and buying all the
>: transceivers and cables would be real pricey. And I can't even
>: directly connect two machines, can I?

You want to use twisted pair or thinnet...

You can get a thinnet transciver for around $75 Each. Check St. Clair
or Milan...  These transievers come with the ability to be connectect
directily to the AUI port(elminating th need for trans cables).
You should be able to pick up some pre-made thinnet cable
from the above also... 

If you want to go twisted pair. Milan Sells a 8-Port twisted pair Hub that
costs around $450 list. You will still need to get 3 Twisted pair Transcivers
St Clair has them for $39 until the end of Decemember. 

Avoid at all costs using transciver cables. Bad connections caused
by transciver cables cause the majority of Network problems.




-- 
Rob Montjoy                   		- Rob.Montjoy@UC.Edu
Computer Engineer    	      		- montjoy@ucbeh.BITNET
University of Cincinnati      		- montjoy@babbage.ece.uc.edu
Electrical and Computer Engineering	- uunet!uceng!rmontjoy

--  To Save the Earth. The Humans must die.

Newsgroups: comp.unix.admin
From: phan@gla.ecoledoc.ibp.fr (Eric Phan-Kim)
Subject: Format.dat for Micropolis 1578
Reply-To: phan@gla.ecoledoc.ibp.fr (Eric Phan-Kim)
Organization: Universite Pierre & Marie Curie  Paris 6
Date: Wed, 16 Dec 1992 12:40:32 GMT

	I need a format.dat for an old micropolis 1578.
	Does anybody have connected one to a Sun4 ?

	Thank's
From: samuel@cs.ubc.ca (Stephen Samuel)
Newsgroups: comp.unix.admin
Subject: Re: Argh! localhost is unknown host
Date: 11 Dec 1992 14:21:23 -0800
Organization: Computer Science, University of B.C., Vancouver, B.C., Canada
NNTP-Posting-Host: chaplin.cs.ubc.ca

tpm@ecs (TP Monks) writes:

>subbarao@fc.hp.com (Kartik Subbarao) writes:

>>>One of our SGIs (an Indigo) is trying to run Quanta which uses
>>>the remote shell for some things. When trying to use it, we get
>>>a localhost unknown host error. /usr/bsd is before /bin in the
>>>path so it is finding the remote shell, not the restricted shell.
>>>Even though localhost is in /etc/hosts as 127.0.0.1 (as it is
>>>supposed to be), I can't even ping localhost.

>>Strange. Do do you have hostresorder set in /usr/etc/resolv.conf? If so, does
>>it mention 'local'? If not, then the resolver won't even look at
>>/etc/hosts.

It's often a good idea to make sure that whoever is administering your 
domain, under NIS, or DNS, has localhost defined IN YOUR DOMAIN.
having localhost.ubc.ca does me no good if my domain is cs.ubc.ca .
-- 
Stephen Samuel 		(604)822-9248		samuel@cs.ubc.ca
The first prerequisite to winning is playing the game.
Newsgroups: comp.unix.admin
From: mba@controls.ccd.harris.com (Belinda Asbell)
Subject: Re: Management of Jr. Unix Sys Admin
Originator: mba@sp1
Organization: Harris Controls
Distribution: na
Date: Fri, 18 Dec 1992 13:31:36 GMT


Hrm.  trying to remember my own days as a jr. admin.

One way to increase or maintain knowledge is by writing little scripts.  Give her
a Unix shellscript book and let her write a few little ones.  Think of little
tasks that it would be nice to have scripts for, and have her write them. 
Nothing really major (yet), just minor things.  I remember one of my first
scripts was a very simple "monitoring" script, to see if any of our Suns had
rebooted overnight.  It consisted, basically, of taking the last 5 lines of
/var/adm/messages and mailing them to ourselves, and it got put in cron so we had
mail every morning.  After a while of writing simple scripts for tasks at work, I
was writing my own scripts to do little personal things.  (I still am basically a
script person :)

Step-by-step, looking over her shoulder tasks may be good to get her learning a
new task, but at some point, you should let her do something like an upgrade or
software installation by herself.

One of the things with system admin is that you learn more through
"trial-by-fire" than you do from books (at times).


Just my $.02...

Belinda
-- 
=============================================================================
Belinda Asbell        +  System Administrator, Harris Controls Division
mba@ccd.harris.com    +      Any opinions presented are mine alone.
  Good judgment comes from experience.  Experience comes from bad judgment.
Newsgroups: comp.unix.admin
From: crobshaw@rd.hydro.on.ca (Catharine Robshaw)
Subject: Re: Management of Jr. Unix Sys Admin
Organization: "Ontario Hydro - Research Division"
Distribution: na
Date: Mon, 14 Dec 92 20:01:35 GMT

: I think this is an interesting question myself.  I'm in a somewhat related
: position, in that I am the only Unix person, but my boss wants a back-up in
: case of system troubles.  I've sent her to training, but in my experience,
: I took spanish for several years, never used it, shortly thereafter forgot
: it.
: I need some simple tasks to keep her knowledgable.  Obviously, there is no
: simple answer, but I'd be interested in hearing some similar experiences
: that others have been through.

I am in the opposite position.  I am in the learning process, and so far
I have gone on a course, and gone through several crashes and upgrades with
the main system administrator telling me step by step what to do.  What 
suggestions have you received about simple tasks that *I* could do on my
own to give me some real hands-on work that I do not need the full-time
sys admin watching me do.

I would be interested in reading e-mail you received about your original
post.  I could show to our sys admin for some suggestions on how to get
me started with basic admin problems.

Catharine
crobshaw@rd.hydro.on.ca
From: ahalim@ics.uci.edu
Subject: mysterious permission mode change
Date: 15 Dec 92 17:31:29 GMT
Newsgroups: comp.unix.admin


I have noticed that after changing the permission bits for a char device
[like /dev/ttyb] to 666 from 600, the systems will turn the mode back
to 600 automatically. This is quite strange and annoying.
Is this somekind of security feature of SunOS (4.1.2) or something else?

/aha
Newsgroups: comp.unix.admin
From: osycs@giac1.oscs.montana.edu (Craig Spannring)
Subject: Re: Best method for filesystem copy?
Keywords: n
Organization: Geographic Information & Analysis Center Montana State University
Date: Wed, 16 Dec 1992 09:32:55 GMT

In article <ericw.724458671@hobbes> ericw@hobbes.amd.com (Eric Wedaa) writes:
>markb@news.gsfc.nasa.gov (Mark R. Baith) writes:
>>I need to copy a filesystem currently housed on a 1 Gb disk to a 2 Gb
>>disk.  dump seemed like a good idea, but the procedure kept asking for

I still think dump is your best choice.  Try something that looks like

   dump 0f - | (cd /destination ; restore xf -)

Disclaimer-  It works on Ultrix.  Other systems might differ.


>Well, Considering that I do this sort of stuff every week (Or so it 
>seems...) here's what I do...
>
>cd from_dir
>tar -cf - |(cd target_dir; tar -xfBp -)
>
>Their are two things to remember though:
>1) core files grow because of tar  (They are "holey" files.)
>2) device files/pipes do not get copied.

tar will archive and extract device files.  You do have to
be root to do it though.

-- 
=========================================================================
 Six of one, 110 (base 2) of | Craig Spannring --- (406) 994-6128
 another.                    | osycs@giac1.oscs.montana.edu
 ----------------------------+ Geographic Information & Analysis Center
Newsgroups: comp.unix.admin
From: dan@lamar.ColoState.EDU (Danilo Silva)
Subject: Re: How to move a filesytem?
Date: Fri, 18 Dec 1992 14:29:41 GMT
Organization: Colorado State University, Fort Collins, CO  80523

Hi There,

Here is what I do on  my HP9000-835 to move /users file system to a new one:

Create the file system (if you haven't yet):

# newfs -n /dev/rdsk/c5d0s2 hpXXXX    <--- Depends on your disk

Create a working directory:

# mkdir /users_new

Mount new disk:
# mount /dev/dsk/c5d0s2 /users_new
# cd /users

Copy the files without changing dates or permissions:

# find . -print | cpio -pdum /users_new

Clean up:
# cd /
# rm -rf /users/*
# umount /users_new  
# mount /dev/dsk/c5d0s2 /users
# rmdir /users_new
  

  You're ready to go,

  DAn Silva
  dan@lamar.colostate.edu

  Disclaimer:  All apply. This is what I do. It works for me, period.
Xref: sparky comp.unix.admin:6691 comp.dcom.lans.ethernet:2828 comp.dcom.lans.misc:1060
From: shwake@nearside.UUCP (Raymond Shwake)
Newsgroups: comp.unix.admin,comp.dcom.lans.ethernet,comp.dcom.lans.misc
Subject: Re: How to network 3-4 home machines cheaply?
Date: 16 Dec 92 13:32:55 GMT
Followup-To: comp.unix.admin
Organization: A/C International


	Though I'm inclined toward thin net in this environment, yet another
twisted-pair solution might be Cabletron's E2 HubCard-4UI, an ISA bus card
providing four 10 BASET ports plus a BNC connector on one slot. Don't know
the cost. Of course, make sure your application knows how to support that
card.

-- 

uunet!media!ka3ovk!nearside!shwake			shwake@rsxtech
From: dla@se05.wg2.waii.com (Doug Acker)
Newsgroups: comp.unix.admin
Subject: How to do a lpq of all queques on printer at once
Date: 16 Dec 92 00:46:03 GMT
Organization: western geophysical exploration products

We  have  a  printer  with  multiple  print queues, one for landscape,
duplex etc ...

How do we do a lpq so we can see what the printer is waiting for ... a
lpq of once queue can be empty and another one can have tons of jobs waiting.
--
Douglas L.Acker                Western Geophysical Exploration Products
____    ____     ____          a division of Western Atlas International Inc.
\   \  /   /\   /   /\         A Litton / Dresser Company
 \   \/   /  \ /   /  \        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  \  /   / \  /   /\   \       Internet  :  acker@wg2.waii.com
   \/___/   \/___/  \___\      Voice     :  (713) 964-6128
Newsgroups: comp.unix.admin