Linux-Networking Digest #779, Volume #11 Sun, 4 Jul 99 12:13:39 EDT
Contents:
Re: Why are transceivers so expensive? (Gary Heston)
Re: W95 + RH6.0 + Samba = Almost ?? ("Jeffrey S. Kline")
Finding kppp (dkselich)
Private addresses and the internet (dkselich)
Killer Server Program for Linux ("Alvin")
Re: Modifing the MTU??? Where in the kernel is it? (Ashok Aiyar)
Re: triggering pppd through external phone call (Georg Schwarz)
Re: help with IP masq ("bahall")
UTP vs coax ("Verheijen")
Re: Network Programming (Jonathan Guthrie)
Re: Two user accounts w/ different ISPs (Jonathan Guthrie)
Re: triggering pppd through external phone call (Georg Schwarz)
Need libproc.so.2.0.0 ([EMAIL PROTECTED])
Re: Two user accounts w/ different ISPs (dkselich)
Let's do the SAMBA ("Noisebrother")
Re: d-link card (Rod Smith)
NFS exports (Eran Dvey-Aharon)
Re: another @home/linux/network problem (Travis Dixon)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Gary Heston)
Crossposted-To: comp.dcom.lans.ethernet
Subject: Re: Why are transceivers so expensive?
Date: 4 Jul 1999 08:11:34 -0500
In article <[EMAIL PROTECTED]>,
Christopher R. Barry <[EMAIL PROTECTED]> wrote:
[ ... ]
>The fact that things magically work sometimes but most of the time
>don't make me think its a hardware problem. I thought I'd begin by
>replacing the transceiver (which is really large and old looking) but
>the cheapest one I can find is $50. Why are they so expensive, and
>since the transceiver still lights up when I try to do things do any
>of you know of a way to debug the connection at a lower-level (like
>via hardware addresses or something...)?
Look for used transceivers on Ebay (Computers>Hardware>Network) or other
auction sites. You should be able to find them for under $10. We have a
bunch left over at work--I use them for spacers between stacked hubs, to
permit better airflow.
For debugging, when things stop working, see if the workstation can ping
itself. If not, it's a cable or transceiver problem. Let the ping continue
trying to run, then wiggle each connector and T-adapter in your cable and
watch to see if it suddenly starts working. T-adapters do go bad, as do
connectors. Use crimp connectors and avoid the twist-on connectors; they're
always trouble.
Gary
--
Gary Heston [EMAIL PROTECTED] spamfodder: root@localhost [EMAIL PROTECTED]
sync@localhost daemon@localhost lp@localhost mail@localhost news@localhost
"CHKDSK.EXE - Corrupt File The file or directory \$Mft is corrupt or
unreadable. Please run the Chkdsk utility." NT Server 4.0 error message
------------------------------
From: "Jeffrey S. Kline" <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux
Subject: Re: W95 + RH6.0 + Samba = Almost ??
Date: Sun, 4 Jul 1999 07:12:53 -0500
Looks like hardware failures there and I never network with IP's starting at
192.168.0.x. I usually start at 1 and go from there eg: 192.168.1.1...255.
[EMAIL PROTECTED] wrote in message
<[EMAIL PROTECTED]>...
>After about 100 hours of reading and trying several
>different "guaranteed-to-work" setups that have been
>mentioned here and in other NG's - 'think' I'm close to
>having a network that functions.
> Here's what I'm seeing:
>1) W95 box (192.168.0.2) "talking" like crazy, (can see
>thru-put on hub)
>2) Linux box (192.168.0.1) says Samba being a server at the
>correct address (192.168.0.1)
>3) can ping local loop, and linux box, fine
>4) W95 box doesn't connect
>5) [ifconfig] shows eth0 not active
>6) [ifconfig -a] shows eth0 configured properly (?)
>7) [ifconfig eth0 up] gives me resource not available.
> SOooooo - what am I missing ??
>(betting the answer makes me feel more ignorant)
> Need to know why the network won't activate - do I need to
>re-build the kernel ???
>
------------------------------
From: dkselich <[EMAIL PROTECTED]>
Subject: Finding kppp
Date: Sun, 04 Jul 1999 07:19:13 -0700
I've looked through my distribution (RH 5.2) and can't find any
reference to kppp. Where can I find it?
Andrew Williams wrote:
I do the whole lot with kppp and use 1 linux user-account for each ISP.
dkselich wrote:
> I have one linux box with two users and two different ISPs. I have no
> problem setting up one ISP and PPP0 and PPP1.But I have not found any
> documentation on how to handle the DNS of the other ISP.
------------------------------
From: dkselich <[EMAIL PROTECTED]>
Subject: Private addresses and the internet
Date: Sun, 04 Jul 1999 07:08:15 -0700
If I set up my computers with a private network using private addresses
(ethernet), will I still be able to connect to the internet through my
ISP (modem)? From what I read in the RedHat guide it dosen't appear
so.
Dennis
>From Red Hat Linux 5.2 The Official Red Hat Linux Installation Guide
If you're setting up a private network that won't ever be connected to
the Internet, then you can
choose any primary name + domain name you would like and have several
choices for IP addresses
(See Figure 78).
Addresses available
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
Figure 78: Private Address Ranges
The three sets of numbers above, correspond to class a, b, and c
networks respectively. The classes are
used to describe the number of IP addresses available as well as the
range of numbers used to described
each. The numbers above have been set aside for private networks.
Please Note: You cannot use these IP addresses if you connect to the
Internet. If you want your
network to be connected to the Internet, or think you might want to at
some point in the future, do
yourself a favor, and get yourself non-private addresses now.
------------------------------
From: "Alvin" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.misc
Subject: Killer Server Program for Linux
Date: Sun, 4 Jul 1999 22:11:08 +0800
Hi,
I'm interested to setup an initiative for a killer server program for linux
and would like to gather some response from this group.
After some survey, I found that many organisation use Windows NT because
they like or love using Microsoft Outlook.
If we can come up with an Exchange Server alternative for Linux, I believe
we will be able to push more Linux out to these organisations.
The Exchange alternative should be Open Source to make things extremely
attractive.
Please give me your feedback and for those who would like to help/support,
please feel free to mail me.
We need lots of ideas and programmers.
Thank you for reading.
------------------------------
From: [EMAIL PROTECTED] (Ashok Aiyar)
Subject: Re: Modifing the MTU??? Where in the kernel is it?
Date: 4 Jul 1999 14:27:09 GMT
Reply-To: [EMAIL PROTECTED]
On Tue, 29 Jun 1999 09:55:58 -0400,
Christopher Lynn ([EMAIL PROTECTED]) wrote:
>Or if there is a neat little hack I would appreciate that .
>
>
man ifconfig
Later,
Ashok
--
Ashok Aiyar, Ph.D.
McArdle Laboratory for Cancer Research
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Georg Schwarz)
Crossposted-To: alt.os.linux.dial-up,yale.users.linux
Subject: Re: triggering pppd through external phone call
Date: 4 Jul 1999 15:09:37 GMT
[EMAIL PROTECTED] (Bill Unruh) writes:
>Why do you not just connect via ppp to your home machine? YOur procedure
he might have a phone and an Internet access at his disposal, but not a
modem connected to a computer with PPP.
>sounds a very roundabout way of doing things. Ie, set up mgetty, dial in
>from our work machine, mgetty answers, you log on and run ppp on the
>home machine and then ppp on your work machine. Or set up AutoPPP and
>use pap, or...
maybe this is not the scenario that fits to his situation.
--
Georg Schwarz ([EMAIL PROTECTED], [EMAIL PROTECTED], PGP 2.6ui)
Institut f�r Theoretische Physik +49 30 314-24254 FAX -21130 IRC kuroi
Technische Universit�t Berlin http://home.pages.de/~schwarz/
------------------------------
From: "bahall" <[EMAIL PROTECTED]>
Subject: Re: help with IP masq
Date: Sun, 4 Jul 1999 08:15:37 -0700
I added the following to the end of my script and now it works!
ipfwadm -F -a accept -m
The instructions I read did not have the above line in them. But after
adding the
above line as the last line of the script everything works just fine.
Thanks for all your help.
CodeWright <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> bahall wrote:
> >
> > Hi,
> > I just upgraded my harddrive. Now, my IP masq does not work!
> > I have RD 5.2 and my linux box can ping the win98 machines and win98 can
> > ping the linux box.
> > The Linux box can ping outside and i can browse with the linux box but
not
> > with win98 machines. Win98 machines can ping each other.
> >
> > Anybody can tell me where I should be looking for problems?
> >
> > TIA
>
> Have you enabled "IP Forwarding" on the Linux box?
>
> Lets have more detail please.
>
>
> --
> Lew Pitcher
>
> Master Codewright and JOAT-in-training
------------------------------
From: "Verheijen" <[EMAIL PROTECTED]>
Crossposted-To:
alt.irc.networks,alt.os.linux,cmh.network,comp.sys.ibm.pc.hardware.networking,cruzio.network,de.comp.os.unix.networking,fj.os.linux.networking,han.comp.os.linux.networking,nl.comp.os.linux.discussie
Subject: UTP vs coax
Date: Sun, 4 Jul 1999 17:05:11 +0200
Why would I take UTP instead of coax?
It's about 10Mb; maximum number of computers: 8.
Running Linux and Windows95
Thanks in advance.
Wouter Verheijen
[EMAIL PROTECTED]
------------------------------
From: Jonathan Guthrie <[EMAIL PROTECTED]>
Subject: Re: Network Programming
Date: 4 Jul 1999 14:17:47 GMT
Taylor Collins <[EMAIL PROTECTED]> wrote:
> I'm not really new to C/C++ and would like to dive into the world of
> network (Inter/Intranet) programming with Linux. Are there any good
> internet (i.e. free) resources one could turn to so as to learn the
> ways??? Anything good on client/server programming? I want the good
> stuff. Thanks. Please C.C. to this email address.
If you want the good stuff, you want the book UNIX NETWORK PROGRAMMING by
W. Richard Stevens. If you want the free stuff, try "apropos socket".
Client server is no big thing. You define the tasks of the client, define
the tasks of the server, and specify a protocol to go between them. A lot
of people use things like RPC for that sort of thing. Expect to screw it
up a few times before you get it right.
--
Jonathan Guthrie ([EMAIL PROTECTED])
Brokersys +281-895-8101 http://www.brokersys.com/
12703 Veterans Memorial #106, Houston, TX 77014, USA
------------------------------
From: Jonathan Guthrie <[EMAIL PROTECTED]>
Subject: Re: Two user accounts w/ different ISPs
Date: 4 Jul 1999 14:59:03 GMT
dkselich <[EMAIL PROTECTED]> wrote:
> Does having this link to /etc/resolv.conf present any security concerns?
Not really, but why do that? Most distributions allow you to set up a
simple DNS server without any difficulty. That DNS server doesn't need to
know the DNS servers that your upstream uses. Instead, it knows about the
root-level name servers, which are going to be the same for all providers.
Then, you just put 127.0.0.1 in your resolv.conf, and it works with any
provider.
--
Jonathan Guthrie ([EMAIL PROTECTED])
Brokersys +281-895-8101 http://www.brokersys.com/
12703 Veterans Memorial #106, Houston, TX 77014, USA
------------------------------
From: [EMAIL PROTECTED] (Georg Schwarz)
Crossposted-To: alt.os.linux.dial-up,yale.users.linux
Subject: Re: triggering pppd through external phone call
Date: 4 Jul 1999 15:18:37 GMT
Marc Mutz <[EMAIL PROTECTED]> writes:
>I guess he cannot really dial in from his working place, but instead
>just rings his home and touchtone-dials some numbers so the computer
>knows that he wants this or that. Then the box hangs up, connects to his
>ISP and mails him it's new IP addr., so that he can now use the
if cost/availability of the ISP or phone line does not deny it, the
easiest thing would be to leave the home system online 24h, or at least
while the owner is at work and potentially wants to connect to it.
>company's Internet gateway to log into his home box. Would be a really
>nice thing if that worked somehow. I could use it myself...
so it's not really a ppp issue at all.
>Maybe one should study one's modem documentation to check, if it is
>poosible to tell the modem to report dialtone'd numbers. A voice modem
yes, that would be the way to do it, or to have an extra device connected
to the computer and to the phone line that can pick up on ring signals (an
answring machine might do so already) and monitor the line for DTMF
signals, which it decodes and reports to the computer.
In principle an answering machine to pick up the line plus an audio in
for the computer (sound card or something) plus DTMF decoding software
should do the trick.
>at least should be able to do that, thinking about those intelligent
>automated call answer machines that I obviously do not know the english
>name for :-)
>Hello, this is the ...(see one line above) of Marc.
>If it is important, type 1 to be redirected to my non-existant mobile
>phone.
>If you want to ask questions about linux, type 2 to get to my voice
>recorder.
>If you are my girl friend: Where have you been last night.
>etc etc.
>How do they do such things?
simple DTMF detection.
--
Georg Schwarz ([EMAIL PROTECTED], [EMAIL PROTECTED], PGP 2.6ui)
Institut f�r Theoretische Physik +49 30 314-24254 FAX -21130 IRC kuroi
Technische Universit�t Berlin http://home.pages.de/~schwarz/
------------------------------
From: [EMAIL PROTECTED]
Subject: Need libproc.so.2.0.0
Date: Sun, 04 Jul 1999 10:56:24 -0400
Where can I get libproc.so.2.0.0
I just tried to update my procps (ps) and now it needs a lib
which I can't find.
HELP!!!!!!!!!!
--
Come Visit Our Website
http://www.freeyellow.com/members/creative-services
Please Visit Our Sponsers (We get paid per visit)
------------------------------
From: dkselich <[EMAIL PROTECTED]>
Subject: Re: Two user accounts w/ different ISPs
Date: Sun, 04 Jul 1999 07:29:26 -0700
Does having this link to /etc/resolv.conf present any security concerns?
Dennis
[EMAIL PROTECTED] (Bill Unruh) wrote:
Have a script to change the /etc/resolv.conf when youstart up each users
ppp.
ln -sf ~/resolv.conf /etc/resolv.conf.
This would mean that you would have to make /etc/writeable by everyone
(not a great idea).
make a subdirectory
etc/resolver
into which you put a file /etc/resolver/resolv.conf
make this directory writeable by everyone.
Then do
( as root)
ln -s /etc/resolver/resolv.conf /etc/resolv.conf
and as above put
ln -sf ~/resolv.conf /etc/resolver/resolv.conf
(Note each user then has his/her own resolv.conf in the home directory)
In <[EMAIL PROTECTED]> dkselich <[EMAIL PROTECTED]> writes:
>I have one linux box with two users and two different ISPs. I have no
>problem setting up one ISP and PPP0 and PPP1.But I have not found any
>documentation on how to handle the DNS of the other ISP.
------------------------------
From: "Noisebrother" <[EMAIL PROTECTED]>
Subject: Let's do the SAMBA
Date: Sun, 4 Jul 1999 16:19:55 +0200
Got hughe probs with configuring SMB printer and network.
by the way, is there way to get on the net through a win98 box without a
proxyserver???
------------------------------
From: [EMAIL PROTECTED] (Rod Smith)
Subject: Re: d-link card
Date: Sun, 04 Jul 1999 15:06:36 GMT
Reply-To: [EMAIL PROTECTED]
[Posted and mailed]
In article <[EMAIL PROTECTED]>,
"David C. DiNucci" <[EMAIL PROTECTED]> writes:
> I don't see any such thing as a DFE-50TX. Do you maybe mean DFE-530TX?
> If so, I have been having MUCH trouble getting this to go. During boot,
> as soon as the driver loads, the system hangs, just after giving a
> cryptic message--i.e. (from /var/log/messages):
>
> kernel: via-rhine.c:v1.00 9/5/98 Written by Donald Becker
> kernel: http://cesdis.gsfc.nasa.gov/linux/drivers/via-rhine.html
> kernel: via-rhine.c:v1.00 9/5/98 Written by Donald Becker
> kernel: http://cesdis.gsfc.nasa.gov/linux/drivers/via-rhine.html
> kernel: eth0: VIA VT3043 Rhine at 0x6100, 00:80:c8:e1:03:b6, IRQ 10.
> kernel: eth0: MII PHY found at address 8, status 0x7809 advertising
> 05e1 Link 0000.
> kernel: PCI latency timer (CFLT) is unreasonably low at 32. Setting
> to 64 clocks.
>
> (I'm running SuSE 6.1 (2.2.7) on an old Pentium 200MHz system.) I've
> tried both the driver that came with the SuSE system and a newer version
> downloaded from http://cesdis.gsfc.nasa.gov/linux/drivers/via-rhine.c
> The only difference in behavior that I see is that the new driver only
> introduces itself once instead of twice (as above).
>
> So, if you ARE using a DFE-530TX, and you are successful in getting it
> to work, could you let me know?
I'm not the original poster, but I do have a D-Link DFE-530TX, in a
system running Mandrake Linux 6.0. It works just fine in my system.
Here's how it announces itself:
via-rhine.c:v1.00 9/5/98 Written by Donald Becker
http://cesdis.gsfc.nasa.gov/linux/drivers/via-rhine.html
via-rhine.c:v1.00 9/5/98 Written by Donald Becker
http://cesdis.gsfc.nasa.gov/linux/drivers/via-rhine.html
eth0: VIA VT3043 Rhine at 0xec00, 00:80:c8:fa:3b:0a, IRQ 3.
eth0: MII PHY found at address 8, status 0x782d advertising 05e1 Link 0000.
There's no message on my system about the PCI latency timer.
> The SuSE people could only guess that
> maybe my problems had to do with the fact that the card is supposed to
> be in a "bus master" slot, according to comments, but my BIOS or other
> documentation doesn't seem to make it clear how to ensure this.
Try swapping the board into another PCI slot (moving another board to the
one the D-Link previously occupied, if necessary). If you get the same
problem with all PCI slots, then it's not a bus master problem. (Though
it could be a bus master problem if you have problems with OTHER
components when they're swapped into the D-Link's current slot.)
Another possibility that occurs to me is that there's some BIOS setting on
your motherboard relating to PCI latency that you could change. You could
try checking out all your BIOS options and see what can be changed.
Yet another possibility is that D-Link or VIA has introduced a change in
their product that's messing up the existing driver, in which case you'll
either have to wait for an updated driver or replace the board. FWIW, I
just got my D-Link board a couple of weeks ago, so if this hypothesis is
correct, it's either a VERY recent change or my board was sitting on a
shelf for a while.
Anyhow, best of luck tracking this down.
--
Rod Smith
[EMAIL PROTECTED]
http://www.channel1.com/users/rodsmith
NOTE: Remove the "uce" word from my address to mail me
Author of _Special Edition Using WordPerfect for Linux_, from Que;
see http://www.channel1.com/users/rodsmith/books.html
------------------------------
From: Eran Dvey-Aharon <[EMAIL PROTECTED]>
Subject: NFS exports
Date: Sun, 04 Jul 1999 18:12:39 +0300
I can't export NFS's. I use Redhat 6.0.
When I start the nfs service by:
/etc/rc.d/init.d/nfs start
I get :
nfssvc: function not implemented.
What am I missing *today* ?
------------------------------
From: Travis Dixon <[EMAIL PROTECTED]>
Subject: Re: another @home/linux/network problem
Date: Sun, 04 Jul 1999 15:42:22 GMT
Larry Irons <[EMAIL PROTECTED]> wrote:
>> You might say that as I can just use a static address I haven't really
>> got a problem but it's very convenient for me to use DHCP to
>> automatically determine the PC's location fromthe network it's on.
>>
>> Do TCI@home use a strange type of DHCP that Linux doesn't know about?
>> I've heard rumours about this (WIDE DHCP?) but nothing helpful.
>>
POssibly the DHCP leases are only handed out to known MAC addressess?
If the Wondoze box and Linux box are different (well, unsing different' NIC's)
then @home's DHCP server might not be recognizing it.
------------------------------
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End of Linux-Networking Digest
******************************
