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mail-archive/linux-admin/Volume2/digest196
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From: Digestifier <Linux-Admin-Request@senator-bedfellow.mit.edu>
|
||||
To: Linux-Admin@senator-bedfellow.mit.edu
|
||||
Reply-To: Linux-Admin@senator-bedfellow.mit.edu
|
||||
Date: Fri, 14 Oct 94 19:14:07 EDT
|
||||
Subject: Linux-Admin Digest #196
|
||||
|
||||
Linux-Admin Digest #196, Volume #2 Fri, 14 Oct 94 19:14:07 EDT
|
||||
|
||||
Contents:
|
||||
Re: New Motif lib's for use with XFree 3.1 ? (Frank Hofmann)
|
||||
Telnet in is slow (Orjan Stromberg)
|
||||
Re: more LEDs? (Steven M. Doyle)
|
||||
Re: Linux [c]fdisk vs DOS (Greg Cisko)
|
||||
Re: Please fix your domain! (Greg Cisko)
|
||||
Re: Ftape works. mt doesn't :( (Mikel Beck)
|
||||
Absurd backup problem with tar (David Kastrup)
|
||||
Kernel getting too big ? (was: Re: LILO error message question) (Werner Almesberger)
|
||||
Re: Big IDE- fdisk 'different phys/log...' (Allan Wind)
|
||||
Re: Recommendation: Partitioning Linux (David - Morris)
|
||||
Re: ISDN and Linux (Robin D. Wilson)
|
||||
Re: New Motif lib's for use with XFree 3.1 ? (John Gotts)
|
||||
linux bootable on second SCSI-HD (Waldmann)
|
||||
|
||||
----------------------------------------------------------------------------
|
||||
|
||||
From: cip574@wpax01.physik.uni-wuerzburg.de (Frank Hofmann)
|
||||
Crossposted-To: comp.windows.x.i386unix,comp.windows.x.motif
|
||||
Subject: Re: New Motif lib's for use with XFree 3.1 ?
|
||||
Date: 14 Oct 1994 13:41:26 GMT
|
||||
|
||||
Shannon Hendrix (shendrix@escape.widomaker.com) wrote:
|
||||
: Rajesh Raj (rxr401@huxley) wrote:
|
||||
|
||||
: : People know that R4 libraries would be needed to compile/run R4 apps
|
||||
: : under X11R5. I am sure that there are many people running old versions of
|
||||
: : Motif with XFree86 3.1.
|
||||
|
||||
: The problem here is that if an R5 and an R6 program is running then you
|
||||
: have a lot more RAM used for shared libs than you would with a pure R5
|
||||
: or R6 system.
|
||||
|
||||
: : Again, thanks for the advice. What about reshuffling config (templates, cf,
|
||||
: : rules) files and includes ? Do you imply that Motif apps can be compiled
|
||||
: : with R6 includes and templates without any problem ? My experience
|
||||
: : suggests otherwise.
|
||||
|
||||
: I found fonts, pathnames, and some includes to be a problem for me too.
|
||||
|
||||
: : Does it mean that Motif 2.0 would also need X11R5 libraries ?
|
||||
|
||||
: I got Motif just 3 or 4 weeks ago from ACC (SWiM). Now I'm wondering if
|
||||
: it will even work when I upgrade and what they'll charge for an upgrade
|
||||
: of Motif. And if Motif 2.0 will not run on R6... ?????
|
||||
|
||||
|
||||
: : Raj
|
||||
|
||||
I didn't have 'religious wars' in mind when starting this thread. I only
|
||||
wanted to know if there will be an update that uses XFree86 3.1 libs.
|
||||
It's a technical problem for me - I want to use X11R6 features within the
|
||||
Motif environment. As X11R5 apps still work (and I've got an awful lot of
|
||||
them since I update my system no more than once a year) and as I don't want
|
||||
to recompile them all, I don't see the point in maintaining X11R5 sharedlibs.
|
||||
It's a pity that I have to wait even longer ... in the meantime, I'll
|
||||
do X11R6 testing with Athena widgets.
|
||||
|
||||
For what I've tested myself, I can compile Motif apps with X11R6 includes;
|
||||
but when linking, I have to use the 'old' R5 libs. And I don't see any
|
||||
reason why Motif apps (or any old X11R5 apps) shouldn't compile with R6
|
||||
includes - R4 apps compile with R5 includes very well, and added entrys
|
||||
withing the include file usually don't make troubles - just changed entrys.
|
||||
|
||||
But there's one major problem that should be fixed (somehow). With Metrolink
|
||||
Motif, there came the mxmkmf script that correctly called imake with Motif
|
||||
templates. This no longer works for me. I don't know enough about configuring
|
||||
imake, I'm just using it, so please could someone point me out what to do ?
|
||||
|
||||
Hey guys: don't just flame Metrolink - I'm more angry about the Slackware
|
||||
distribution originator. Why the hell does he have to create such a chaos
|
||||
like /usr/X11, /var/X11 -> ../../X11, /usr/X386 -> X11, and so on ?
|
||||
This difference /usr <-> /var and the gigantic amount of softlinks between
|
||||
these dirs cost me half a day to clean up; I just don't want to install
|
||||
X11R6 (Xfree86 3.1) in /usr/X11 when I still need Xfree86 2.x; but when I
|
||||
wanted to make sure X11R6 stuff is used preferably, I had to recurse all these
|
||||
subtrees to delete unecessary things - I now think it would have been easier
|
||||
to remove all X11R5 stuff, then setup X11R6 and after that, untarring the
|
||||
needed files from X11R5 to /tmp and selecting the necessary things - But
|
||||
how should I know before ?
|
||||
|
||||
One more thing:
|
||||
Is there already a release date for Motif 2.0 ?
|
||||
|
||||
ok, I've got to go now, it's lunch time -- see you on monday.
|
||||
|
||||
Bye
|
||||
|
||||
Frank
|
||||
|
||||
------------------------------
|
||||
|
||||
From: connor@tekla (Orjan Stromberg)
|
||||
Subject: Telnet in is slow
|
||||
Date: 14 Oct 1994 13:54:43 GMT
|
||||
|
||||
Yes, I know this is subject to another thread, but I couldn't find it at the
|
||||
moment, and wanted to get this posted.
|
||||
|
||||
My problem seems slightly different though.
|
||||
|
||||
The lines out are as fast as you can possible wish, but as soon as I try to
|
||||
telnet in to the machine it goes SLOOW. People have been telnetting into the
|
||||
machine, and stopped at the login for five minutes. If I check locally, they
|
||||
are logged in, but they are still stuck on the login-screen.
|
||||
|
||||
Anybody know what it could be? Or perhaps how to solve it at least?
|
||||
A friend said it might be better if I bought more memory. Reflections?
|
||||
|
||||
Any help in the matter gratefully accepted.
|
||||
|
||||
/Orjan
|
||||
|
||||
------------------------------
|
||||
|
||||
From: wcreator@kaiwan.com (Steven M. Doyle)
|
||||
Subject: Re: more LEDs?
|
||||
Date: 14 Oct 1994 13:50:46 -0700
|
||||
|
||||
In <37e6si$v0@eddy.frmug.fr.net> zarkdav@eddy.frmug.fr.net (Benjamin Ryzman) writes:
|
||||
|
||||
>>>>>> Au sujet de "Re: SCSI vs IDE", Alan Cox <20>crivait r<>cemment:
|
||||
|
||||
>AC> In article <36t84s$pb0@dhp.com> panzer@dhp.com (Panzer Boy)
|
||||
>AC> writes:
|
||||
>>> Umm, I have three LED's on my computer, plus a panel for stupid
|
||||
>>> speed. I have 3 drive controllers hooked up to the "HD, Turbo,
|
||||
>>> and Power" LED's. I don't anyone who uses turbo for more than
|
||||
>>> minor kicks, and if you can't tell you're computer is on, maybe
|
||||
>>> you need your head examined. Of course, if you only have 1 led,
|
||||
>>> this could be a problem.
|
||||
|
||||
>AC> Definitely we need more LEDs. I've got the turbo wired to the
|
||||
>AC> carrier detect on the amateur radio PI2 card 8)
|
||||
|
||||
>Yep!
|
||||
>In fact, we'd need a user programmable LCD (2x40?) screen for:
|
||||
>-disk status
|
||||
>-serial port status
|
||||
>-system load
|
||||
>-custom peripheral status (like your amateur radio...)
|
||||
|
||||
I am interested in undertaking a programmable LCD project, perhaps using /dev/lcd
|
||||
device name, connected to parallel port if possible or bus if necessary. All I
|
||||
would need is someone to write the kernel driver :)
|
||||
|
||||
If interested, mail me. I'll post the information here if I get enough responses,
|
||||
and perhaps we can build a few :)
|
||||
|
||||
--
|
||||
| Steven Doyle, AKA World Creator | #include <std_disclaimer> |
|
||||
| Sysop, NETDimension (818)592-6279 | For information on Artificial Worlds |
|
||||
| wcreator@kaiwan.com | send email to wcreator@kaiwan.com for |
|
||||
| wcreator@axposf.pa.dec.com | an information package. |
|
||||
|
||||
------------------------------
|
||||
|
||||
From: cisko@d0tokensun.fnal.gov (Greg Cisko)
|
||||
Subject: Re: Linux [c]fdisk vs DOS
|
||||
Date: 12 Oct 1994 12:51:54 GMT
|
||||
Reply-To: cisko@d0tokensun.fnal.gov
|
||||
|
||||
In article cg9@agate.berkeley.edu, johnm@cory.EECS.Berkeley.EDU (John D. Mitchell) writes:
|
||||
> The 1.7 GB machine is running MS-DOS v6.20 and Linux 1.1.47 (the Yggdrasil
|
||||
> Fall '94 CD). I partitioned this using the cfdisk program that was
|
||||
> installed with Linux creating the following partitions:
|
||||
> /dev/sda1 500 MB for DOS
|
||||
> /dev/sda2 32 MB for swap
|
||||
> /dev/sda3 448 MB for Linux root
|
||||
> /dev/sda4 700+ MB for Linux home
|
||||
>
|
||||
> When I boot into DOS on that machine DOS correctly states that it's got 500
|
||||
> MB of disk space (and whatever I have left (110+ MB :-) is correct too).
|
||||
>
|
||||
>
|
||||
> The 1.0 GB machine is running MS-DOS v6.21 and the same Linux as above. I
|
||||
> partitioned this using the cfdisk from Linux as follows:
|
||||
> /dev/sda1 384 MB for DOS
|
||||
> /dev/sda2 32 MB for swap
|
||||
> /dev/sda3 384 MB for Linux root
|
||||
> /dev/sda4 200+ MB for Linux home
|
||||
>
|
||||
> When I boot to DOS on this machine DOS says that it's got all 1.0 GB of
|
||||
> disk space. I've tried re-partitioning the drive, reformatting it, etc.
|
||||
> but none of that made any difference. All of the partitions are primary
|
||||
> and I set the active/boot partition to the DOS partition. At this point
|
||||
> I'm inclined to believe that it's a 'feature' of MS-DOS v6.21 but...
|
||||
|
||||
|
||||
You want a DOS partition? Use DOS's fdisk. You want a linux partition
|
||||
(swap or native)? Use the linux fdisk. Period...
|
||||
|
||||
>
|
||||
> Thanks,
|
||||
> John
|
||||
>
|
||||
>
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
------------------------------
|
||||
|
||||
From: cisko@d0tokensun.fnal.gov (Greg Cisko)
|
||||
Subject: Re: Please fix your domain!
|
||||
Date: 12 Oct 1994 13:01:08 GMT
|
||||
Reply-To: cisko@d0tokensun.fnal.gov
|
||||
|
||||
In article hpr@astfgl.edb.tih.no, mortenst@colargol.edb.tih.no (Morten Steinvik) writes:
|
||||
> Thomas Koenig (ig25@fg70.rz.uni-karlsruhe.de) wrote:
|
||||
> : > (some name) @myhost.subdomain.domain
|
||||
|
||||
I have seen the above problem, when configuring news readers. So... Make sure
|
||||
the newsreader is set up properly...
|
||||
|
||||
>
|
||||
> When the answer is as easy as this one I certainly think you should post the
|
||||
> solution to the problem along with your two pages description of the
|
||||
> problem.
|
||||
>
|
||||
> The correct file is
|
||||
> /usr/local/lib/news/mailname
|
||||
>
|
||||
> on all standard slackware installations (I know of).
|
||||
>
|
||||
> Change the contents of this file to your mail-return-address.
|
||||
>
|
||||
> Morten Steinvik
|
||||
> --
|
||||
> (2b) || (!2b), that is the question...
|
||||
> Turn your 486 into an XT--just add Windows!
|
||||
> Morten Steinvik mortenst@edb.tih.no Jogger on IRC
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
------------------------------
|
||||
|
||||
From: mikel@avenger.netusa.net (Mikel Beck)
|
||||
Subject: Re: Ftape works. mt doesn't :(
|
||||
Date: 14 Oct 1994 10:27:49 -0400
|
||||
|
||||
Timothy Murphy (tim@maths.tcd.ie) wrote:
|
||||
: carlos@interport.net (Carlos Dominguez) writes:
|
||||
|
||||
: >Ftape is working OK now. But I'm trying to use mt to stash more than
|
||||
: >one tar archive per tape and It doesn't work.
|
||||
|
||||
: You have to use /dev/nftape for this:
|
||||
: nftape = non-rewinding ftape.
|
||||
|
||||
: Incidentally, if ftape is working for you, please tell us:
|
||||
|
||||
: 1. Version of Linux kernel
|
||||
: 2. Version of ftape
|
||||
: 3. Exact backup command given
|
||||
: 4. Size (approx) of backup
|
||||
|
||||
1. 1.1.52
|
||||
2. 1.13b-patched
|
||||
3. tar -xvz *
|
||||
4. 110MB
|
||||
|
||||
--
|
||||
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
||||
Mikel Beck E-Mail: mikel@avenger.netusa.net
|
||||
Programmer/Analyst VAX/OpenVMS Specialist
|
||||
|
||||
------------------------------
|
||||
|
||||
From: dak@rama.informatik.rwth-aachen.de (David Kastrup)
|
||||
Subject: Absurd backup problem with tar
|
||||
Date: 12 Oct 1994 13:09:40 GMT
|
||||
|
||||
Well, we have a net setup here, and I want to make a backup using tar.
|
||||
tar clvf woody:/dev/rmt1 /usr
|
||||
will do the trick. Mostly. It will refuse to work if I'm super user,
|
||||
but of course, if I'm not, I cannot necessarily read all the files.
|
||||
|
||||
The problem lies with /usr/bin/rsh, which will require a password when
|
||||
logging in as super user (interactively) or just fail (non-interactively,
|
||||
as in
|
||||
rsh woody pwd
|
||||
|
||||
Now is there a possibility of getting this to work? At the moment, I have
|
||||
made a file /usr/ucb/rsh (first place tar looks) which is just root
|
||||
executable and has
|
||||
exec su nobody -c "exec /usr/bin/rsh $*"
|
||||
in it. Somewhat of a weak solution. Anybody know any better one?
|
||||
--
|
||||
David Kastrup dak@pool.informatik.rwth-aachen.de
|
||||
Tel: +49-241-72419 Fax: +49-241-79502
|
||||
Goethestr. 20, D-52064 Aachen
|
||||
--
|
||||
David Kastrup dak@pool.informatik.rwth-aachen.de
|
||||
Tel: +49-241-72419 Fax: +49-241-79502
|
||||
Goethestr. 20, D-52064 Aachen
|
||||
|
||||
------------------------------
|
||||
|
||||
From: almesber@nessie.cs.id.ethz.ch (Werner Almesberger)
|
||||
Subject: Kernel getting too big ? (was: Re: LILO error message question)
|
||||
Date: 12 Oct 1994 13:07:22 GMT
|
||||
|
||||
In article <eribrunoCxIzE6.70q@netcom.com> eribruno@netcom.com (Eric V. Bruno) writes:
|
||||
> Kernel vmlinuz too big!
|
||||
|
||||
Ugly. Either something's broken or your kernel is really too big (are we
|
||||
already at that point again ?). Maybe leaving out some non-essential
|
||||
device drivers and other kernel features would shrink it to a more
|
||||
reasonable size.
|
||||
|
||||
> What is this really telling me?
|
||||
|
||||
This tells you that LILO thinks your kernel would be too big to load.
|
||||
Either LILO is wrong or what it thinks is the kernel isn't or the
|
||||
(compressed) kernel is really bigger than half a megabyte. (Re-building
|
||||
the kernel and examining the paths listed in /etc/lilo.conf should help
|
||||
eliminating the first two (unlikely) possibilities.)
|
||||
|
||||
Has anybody seen this problem too ? Is it time to finally start the
|
||||
heavy rewrite to run LILO in protected mode ? :-(
|
||||
|
||||
> Do I need to leave more room before defining partition 1.
|
||||
|
||||
No, that's not a failing copy operation. LILO typically only allocates
|
||||
a few kB of disk space.
|
||||
|
||||
- Werner
|
||||
--
|
||||
_________________________________________________________________________
|
||||
/ Werner Almesberger, sending this from almesber@nessie.cs.id.ethz.ch /
|
||||
/______________________..._but_now_at_home_at________almesber@di.epfl.ch_/
|
||||
|
||||
------------------------------
|
||||
|
||||
From: wind@platinum.daimi.aau.dk (Allan Wind)
|
||||
Subject: Re: Big IDE- fdisk 'different phys/log...'
|
||||
Date: 14 Oct 1994 04:52:27 GMT
|
||||
|
||||
> In article <DELMAN.94Oct9193506@mipgsun.mipg.upenn.edu> delman@mipg.upenn.edu writes:
|
||||
> < [*] Delman Lee writes:
|
||||
> <
|
||||
> < ] Will try and fix it in the atdisk2 code....
|
||||
> <
|
||||
> <The 1.1.52-diffs in mipgsun.mipg.upenn.edu:pub/delman should fix the
|
||||
> <problem. It fakes the bios geometry from the real physical geometry by
|
||||
> <halving the cylinders (and doubling the heads) until cyl<=1024.
|
||||
>
|
||||
> Ugh! This will cause trouble.
|
||||
>
|
||||
> The correct solution for linux 1.1.x is to simply define the drive
|
||||
> as having 32 (or 64) heads in the BIOS CMOS setup. Then DOS, linux,
|
||||
> and most other stuff will handle it just fine.
|
||||
|
||||
When I use more then 16 heads in my BIOS CMOS setup it hangs before
|
||||
getting to the OS.
|
||||
|
||||
|
||||
Allan Wind Phone: (+45) 40 27 14 94
|
||||
Klamsagervej 45 e-mail: wind@daimi.aau.dk
|
||||
8230 Aabyhoej www: http://www.daimi.aau.dk/~u930528/index.html
|
||||
Denmark ------------------------------------------------
|
||||
--
|
||||
|
||||
Allan Wind Phone: (+45) 40 27 14 94
|
||||
Klamsagervej 45 e-mail: wind@daimi.aau.dk
|
||||
8230 Aabyhoej www: http://www.daimi.aau.dk/~u930528/index.html
|
||||
Denmark ------------------------------------------------
|
||||
|
||||
------------------------------
|
||||
|
||||
From: dwm@shell.portal.com (David - Morris)
|
||||
Subject: Re: Recommendation: Partitioning Linux
|
||||
Date: 14 Oct 1994 05:29:48 GMT
|
||||
|
||||
When laying out your Linux partitions, consider your 'distribution'
|
||||
guidelines.... For example, Yggdrasil suggests a dedicated
|
||||
root partition WITHOUT installation modified files as their
|
||||
upgrade to next release assumes they can reinstall the whole
|
||||
root partition but preserve the others. If you are installing
|
||||
with your own download or another distribution this may not
|
||||
apply.
|
||||
|
||||
Dave Morris
|
||||
|
||||
------------------------------
|
||||
|
||||
From: robin@pencom.com (Robin D. Wilson)
|
||||
Subject: Re: ISDN and Linux
|
||||
Date: 14 Oct 1994 15:05:49 GMT
|
||||
Reply-To: robin@pencom.com
|
||||
|
||||
In article <827@bjohns.win.net> writes:
|
||||
:In article <CxLDr2.LsI@info.uucp>, Serge Solski u (sols7520@mach1.wlu.ca)
|
||||
writes:
|
||||
:>
|
||||
:> I noticed some talk before here about ISDN. A local service
|
||||
:>provider is going to be using ISDN in the near future, and I'd like to
|
||||
:>use it (a lot cheaper than 56K.)
|
||||
:>
|
||||
:
|
||||
:Yes, it sure is. I am all so looking into ISDN and Linux..
|
||||
|
||||
Definately cheaper than 56Kbps, but still quite expensive all things
|
||||
considered. First, you need to install an ISDN line. The installation
|
||||
charges run anywhere from "normal line installation" to special install
|
||||
charges. Southwestern Bell charges ~$585 (they have a special going right
|
||||
now for ~$94 install, but it will go back up on Oct. 24). Second, you'll
|
||||
need (in the US) an NT1. This device is supplied by the telephone company in
|
||||
_other_ countries (outside the US), but in the US it is customer supplied
|
||||
equipment. Prices range from ~$200 to $700. (See below for a suggestion...)
|
||||
Next, you will need to purchase an ISDN "terminal adaptor" (T/A). The T/A
|
||||
can be anything from an ISDN ready phone, to an ISDN bridge, to an adaptor
|
||||
card for your PC. It simply connects a device to the ISDN line. Some T/A's
|
||||
even include the NT1 (of course, they cost extra for the luxury...). T/As
|
||||
range from ~$600 on up to several thousand. After you have all the
|
||||
equipment, you will need to purchase a connection to an Internet provider.
|
||||
In _most_ cases, they will provide you with a "dedicated" dialup (kind of
|
||||
defeats the purposed of "dialup") dialup line (i.e., your _own_ phone number
|
||||
to call for the service). Many of these will only allow you to connect on a
|
||||
single "B" channel as well. Given that you will (basically) be the only one
|
||||
using your dialup line -- you should expect to pay the full cost of the
|
||||
provider's ISDN service (for that line), plus their markup. Some of them
|
||||
cost as little as ~$100 (for a single-site line -- where you only get 1 IP
|
||||
address assigned to you) to ~$400 for a full Internet feed (say from "PSI",
|
||||
for example).
|
||||
|
||||
:> What is entailed in using ISDN with Linux? I take it there's an
|
||||
:>ISDN card for the computer. How does Linux use the card? Does it treat it
|
||||
:>like an ethernet card, or something else?
|
||||
:>
|
||||
:> Bell tells me I'll need an ISDN Terminal Adapter. What is that,
|
||||
:>and will I have that when I have the card? They give me an NT-1, whatever
|
||||
:>that is.
|
||||
:>
|
||||
:
|
||||
:Yes, You will get a NT1 card and power supply. The bell's do not supply
|
||||
:line power in the USA for ISDN. I think, in other counties they do.
|
||||
:
|
||||
:If you are running BRI (Bacis Rate Interface) That is what most home users
|
||||
:have. You will Need a NT1 card for your computer that will connect to the
|
||||
:U interface that you RBOC will install. plus the power for the NT1..
|
||||
|
||||
The NT1 converts the 2-wire "U" interface provided by the RBOC (Regoinal Bell
|
||||
Operating Company), to a 4-wire S/T interface used by the T/A. The T/A is
|
||||
simply the equipment on your side that connects to the ISDN line (as stated
|
||||
before: it can be a phone, bridge, adaptor card, etc.)
|
||||
|
||||
As for needing a "card" to do ISDN over Linux -- a simpler solution would be
|
||||
to use an _already_ supported Ethernet card and buying an ISDN-Ethernet
|
||||
bridge to the remote network. Then the Linux box _never_ has to know that it
|
||||
is talking over ISDN. As far as Linux is concerned, it _only_ has to talk
|
||||
"Ethernet"... Of course, it would probably depend a great deal on what your
|
||||
Internet provider can offer...
|
||||
|
||||
:> I get two "B" channels. Does one ISDN card only use one "B"
|
||||
:>channel? Can I use another ISDN card to have two 64K links to my service
|
||||
:>provider (assuming I pay them twice)?
|
||||
:>
|
||||
:
|
||||
:No, The NT1 will use both B Channels as well as the D channel.
|
||||
:With this you can have one link to your provider and be talking on your
|
||||
:ISDN Digital phone each on one B (64KPS) channel while downing a file
|
||||
:from your local BBS on the D 16 kps or (9600 or 14.4 modem speed) channel.
|
||||
|
||||
The NT1 doesn't really _do_ anything useful (as far as the user is
|
||||
concerned). It is _purely_ to convert the wiring to an appropriate spec for
|
||||
use with the T/A.
|
||||
|
||||
As stated before, the Internet provider (or remote site) you use will dictate
|
||||
how many "B" channels you can use. For example, we have some Combinet
|
||||
Ethernet to ISDN bridges here, we connect to a remote site. We have the
|
||||
bridges configured to "dynamically" dial the remote system on the first "B"
|
||||
channel when "more than 0 (zero) bytes are received". Then, when we are
|
||||
receiving more than 48Kbps for 10 seconds, we have it automatically start up
|
||||
the second channel (it automatically does load balancing and multiplexing).
|
||||
This configuration was intrinsic to the Combinet bridges (but most of the
|
||||
ISDN-Ethernet bridges we've seen do the same stuff).
|
||||
|
||||
As for using the 'D' channel for "modem-like" speeds... The "D" (Delta)
|
||||
channel is used to control the connection (initiate, tear-down, setup, etc.).
|
||||
In other words, when you attempt to call from one ISDN T/A to some other
|
||||
phone number, the phone number you are trying to reach is sent in a packet
|
||||
through the "D" channel. The remote side (if it is ISDN) recieves the
|
||||
incomming connection request on its "D" channel. Then both sides agree to
|
||||
open a "B" channel for voice or data. It is possible to have the phone
|
||||
company setup X.25 (Packet switched data) connections through the "D"
|
||||
channel, but it requires an X.25 PAD and some other specialized equipment.
|
||||
In the U.S., it would probably cost significantly more to get this
|
||||
configuration "workable"... So I doubt it would be worth it (also, you'd
|
||||
have to get someone else to setup for receiving X.25 packet-switched data.
|
||||
|
||||
:> Is there any other information about ISDN that I'll need. Anyone
|
||||
:>putting together a FAQ for this?
|
||||
:>
|
||||
:
|
||||
:Look over on comp.telcom.isdn or something like that.
|
||||
:I have a WWW address but, can not remember it right now.
|
||||
:I think you can gopher bellcore as well.
|
||||
|
||||
The _best_ ISDN site I've found (in the U.S.) is "Dan Kegel's ISDN Home Page"
|
||||
(found at: http://alumni.caltech.edu/~dank/isdn/). It is a fairly
|
||||
comprehensive list of ISDN equipment, FAQs, and other WWW home pages.
|
||||
|
||||
Now, a little tidbit of _useful_ information: IBM is selling a device called
|
||||
the: "IBM 7845 Network Terminator Extended" (found on Dan Kegel's home
|
||||
page...). This device is an NT1, plus a couple of _neat_ features. First,
|
||||
it is an NT1, and it only costs $350 (about $120 more than the cheapest NT1
|
||||
I've found so far). So it provides the same features as the standard NT1.
|
||||
Next, it provides ISDN-Analog (POTS) line conversion. This means that you
|
||||
can hook-up your standard house-wiring to the device and use your standard
|
||||
analog telephones (the one's you've always used). Third, it provides some
|
||||
"special" telco tricks: Speed dialing, last number re-dial, call hold, return
|
||||
last incoming call, call waiting, call retrieve, three-to-six way
|
||||
conferencing, etc. Finally, it has a battery back-up system, that provides
|
||||
18hours of "standby" (i.e., wait for a call), or 6-hours "off-hook" use.
|
||||
|
||||
So, you can hook your ISDN T/A to one output wiring system, and hookup your
|
||||
house telephone system to the other. You get _both_ ISDN and POTS service.
|
||||
This is _not_ a commercial, I am just excited about the possibility of such a
|
||||
device.
|
||||
|
||||
--
|
||||
=============================================================================
|
||||
*** These are my opinions... Mine! All Mine! Minemineminemineminemine! ***
|
||||
=============================================================================
|
||||
Robin D. Wilson robin@pencom.com Pencom Software
|
||||
701 Canyon Bend Dr. 9050 Capital of Texas Hwy
|
||||
Pflugerville, TX 78660 Austin, TX 78759
|
||||
|
||||
------------------------------
|
||||
|
||||
From: john@linux.reshall.umich.edu (John Gotts)
|
||||
Crossposted-To: comp.windows.x.i386unix,comp.windows.x.motif
|
||||
Subject: Re: New Motif lib's for use with XFree 3.1 ?
|
||||
Date: 14 Oct 1994 15:17:33 GMT
|
||||
|
||||
Frank Hofmann (cip574@wpax01.physik.uni-wuerzburg.de) wrote:
|
||||
: Hey guys: don't just flame Metrolink - I'm more angry about the Slackware
|
||||
: distribution originator. Why the hell does he have to create such a chaos
|
||||
: like /usr/X11, /var/X11 -> ../../X11, /usr/X386 -> X11, and so on ?
|
||||
: This difference /usr <-> /var and the gigantic amount of softlinks between
|
||||
: these dirs cost me half a day to clean up; I just don't want to install
|
||||
: X11R6 (Xfree86 3.1) in /usr/X11 when I still need Xfree86 2.x; but when I
|
||||
: wanted to make sure X11R6 stuff is used preferably, I had to recurse all these
|
||||
: subtrees to delete unecessary things - I now think it would have been easier
|
||||
: to remove all X11R5 stuff, then setup X11R6 and after that, untarring the
|
||||
: needed files from X11R5 to /tmp and selecting the necessary things - But
|
||||
: how should I know before ?
|
||||
--
|
||||
|
||||
Symbolic links are what makes Linux (and every other Unix) behave sanely with a
|
||||
variety of programs which expect different paths. For example, /usr/bin is
|
||||
linked to /usr/bsd because on some machines certain programs are located only
|
||||
in /usr/bsd. I've seen /var/adm as /usr/adm. There are many more examples of
|
||||
this. Theoretically, the Linux File System Standard dictates the directory
|
||||
structure, but until we stop having to use software not written specifically
|
||||
for the Linux directory hierarchy, the symbolic links will have to stay.
|
||||
|
||||
--
|
||||
John Gotts (jgotts@umich.edu) 73 de N8QDW URL: http://www.umich.edu/~jgotts
|
||||
GE -d+ H s+: g-- p? !au a-- w+ v C++++ UL++++ P+>++ L++ 3- E--- N+++ K- !W M--
|
||||
V-- -po+(---) Y+ t+ 5 j+ R- G? tv b+ D B- e+ u--- h f+ r n- y? <Linux rules!>
|
||||
|
||||
------------------------------
|
||||
|
||||
From: thinklab@rummelplatz.uni-mannheim.de (Waldmann)
|
||||
Crossposted-To: de.comp.os.linux,comp.os.linux.help
|
||||
Subject: linux bootable on second SCSI-HD
|
||||
Date: 14 Oct 1994 14:41:36 GMT
|
||||
|
||||
|
||||
Hello ot there,
|
||||
|
||||
I'm happily running Linux on my first SCSI-Disk (on sda3, to be true,
|
||||
with DOS on the first two partitions for those users in our lab that
|
||||
that can never really QUIT wordperfect and the like). Now, as large
|
||||
amounts of data are to be expected from a new experimental series,
|
||||
I will have to move my Linux to a second SCSI HD (using AHA1542).
|
||||
What I need to know is simply:
|
||||
|
||||
How do I make a bootable floppy (the "dd if=zImage of=/dev/fd0 ... style)
|
||||
which accesses the second drive as / ? Can I use "rdev.... or something ?
|
||||
I know that I need to reconfigure my *tabs in /etc to mount the whole
|
||||
fss', but how do I get Linux to start ?
|
||||
|
||||
Thanks in advance for your helpful comments !!!
|
||||
|
||||
|
||||
===========================================================================
|
||||
|
||||
message by : Hans-Christian Waldmann
|
||||
|
||||
| University of Mannheim
|
||||
| Dep. PPE / Section Clin. Psychology
|
||||
| EW 182
|
||||
| Schloss
|
||||
| 68131 Mannheim / Germany
|
||||
| Tel. (+49-621)-1126
|
||||
| -1416
|
||||
|
||||
I-NET / e-mail : thinklab@rummelplatz.uni-mannheim.de
|
||||
-------------------------------------------------------------------------
|
||||
-------------------------------------------------------------------------
|
||||
|
||||
|
||||
------------------------------
|
||||
|
||||
|
||||
** FOR YOUR REFERENCE **
|
||||
|
||||
The service address, to which questions about the list itself and requests
|
||||
to be added to or deleted from it should be directed, is:
|
||||
|
||||
Internet: Linux-Admin-Request@NEWS-DIGESTS.MIT.EDU
|
||||
|
||||
You can send mail to the entire list (and comp.os.linux.admin) via:
|
||||
|
||||
Internet: Linux-Admin@NEWS-DIGESTS.MIT.EDU
|
||||
|
||||
Linux may be obtained via one of these FTP sites:
|
||||
nic.funet.fi pub/OS/Linux
|
||||
tsx-11.mit.edu pub/linux
|
||||
sunsite.unc.edu pub/Linux
|
||||
|
||||
End of Linux-Admin Digest
|
||||
******************************
|
||||
Reference in New Issue
Block a user