Linux-Networking Digest #737, Volume #10 Sat, 3 Apr 99 23:13:25 EST
Contents:
Re: How do I monitor my modem (Gary Momarison)
NFS Problems ("Brian Fernald")
Aliased IP usage moderation (Rajak)
Re: pppd woes (the eternal saga) (Bill Unruh)
Re: Linux Networking Performance Question? ("Curt")
Re: [Help] PPP worked but now fails [modem q] (Lee McKusick)
Re: Best Free X Windows Server for Win95/98 Box on Samba/Linux Network? (yan seiner)
Re: recursive catching of www-pages? ([EMAIL PROTECTED])
Netscape bus error when I click on "email" tag (Lee McKusick)
Re: pppd woes (the eternal saga) (Bill Unruh)
Re: Best Free X Windows Server for Win95/98 Box on Samba/Linux Network? (yan seiner)
RH5.2 and 3c509b trouble (Dave Fanjoy)
----------------------------------------------------------------------------
From: Gary Momarison <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.misc
Subject: Re: How do I monitor my modem
Date: 03 Apr 1999 19:12:23 -0700
"Stephen Thomas" <[EMAIL PROTECTED]> writes:
> I am using diald to dial up a ppp account with my ISP. I would like to
> monitor the modem connection rate, time connected, bytes sent, bytes
> received, etc. Is there a utility to do this?
See "pload" and other stuff at
http://www.aa.net/~swear/pedia/networking.html#monitoring
and you might find something for that in
http://www.aa.net/~swear/pedia/ppp.html
--
Look for Linux info at http://www.dejanews.com/home_ps.shtml and in
Gary's Encyclopedia at http://www.aa.net/~swear/pedia/index.html
------------------------------
From: "Brian Fernald" <[EMAIL PROTECTED]>
Subject: NFS Problems
Date: Fri, 2 Apr 1999 18:30:50 -0800
Does anyone know if NFS Servers under linux are stable. We tried running a
Linux machine as a file server running NFSserver2.2b40.. It seemed to
work okay with 1 or two people using it... but as soon as the load grew
larger it failed in so many ways I don't know where to begin. One problem
is, rpc.nfsd quit about every other hour... We had to write a script to keep
checking for its process and restart everytime it quit. Then, we were
continuously receiving file corruption problems, and I/O errors on the
clients. It got to the point that if I installed an executable on the file
server, it would be corrupt within a day.. Is Linux just not stable enough
to be a heavy use server?? We have returned to Solaris as our server and
are having no problems.. however I have more faith in linux... does anyone
have any suggestions...
File Servers :
Pentium II 350 Machines,
Adaptec 2940UW2 SCSI
Quantem 9.1 GB SCSI Drives
Redhat Linux 5.2 (tried 2.036, 2.2.3,2.2.4,2.2.5)
Clients : Sun Workstations, Linux Workstations
Thanks for any suggestions,
Brian Fernald
[EMAIL PROTECTED]
------------------------------
From: Rajak <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.admin,alt.uu.comp.os.linux.questions,alt.os.linux
Subject: Aliased IP usage moderation
Date: Sat, 3 Apr 1999 21:17:22 -0500
Ok, what the hell does the subject mean you ask? Let me explain.
(This is all theoretical btw)
I have a commercial shell provider/web hosting box, connected to the i-net
@ T1 speed, and have a large number of IPs (100, 256,512, take your pick).
Currently, they are all aliased to my eth card, and any user can bind to
any IP and proceed to connect to IRC from there. However, I have a few
domains/hosts on my eth card that should NOT be used for any purposes,
except by a few users. For example, one user likes to IRC with this
specific vhost (some.leetoid.host.com) and gets very upset if anyone else
uses this host. How can I prevent the majority of users from being able to
bind to this IP/host, but still allow one or two users access? I've been
kicking this problem around for a while and I'm not seeing an obvious
solution. Preferably the solution would work on a 2.2 Linux box, however a
2.0 solution would be welcome as well.
raj
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Bill Unruh)
Crossposted-To: comp.os.linux.setup,comp.os.linux.questions,comp.os.linux
Subject: Re: pppd woes (the eternal saga)
Date: 4 Apr 1999 02:20:31 GMT
In <rwzN2.147$[EMAIL PROTECTED]> [EMAIL PROTECTED] (Mike Graham)
writes:
>On Wed, 31 Mar 1999 20:51:59 -0900, [EMAIL PROTECTED] wrote:
>>Well, I've configured the proper files, I've contacted my ISP to find out
>>whether it uses PAP or CHAP, set that stuff up, and I am still running
>>into trouble.
> Use the scripts. Look in the directory /usr/doc/ppp-*.*.*/scripts and
>you'll find a few demo scripts. Copy ppp-on, ppp-off, and ppp-on-dialer
The problem is that those are old scripts which assume that
authentication proceeds via logon. However many ISPs nowadays do not use
login authentication. They use PAP or CHAP, and those scripts do not do
much for that situation.So if you are lucky they work, if not you are
again left high and dry.
>>This does not work; it prints the pppd help stuff, suggesting I improperly
>>typed something. I suspect this is because my user name has a space in it,
Yes, that would be a problem. But if you enclose it in quotes (
/usr/sbin/pppd /dev/ttyS1 115200 user 'your user name' connect ....)
it should be OK.
Make sure that you use the same quotes in your pap or chap secrets file
'your user name' * 'your password' *
>know is that the ppp scripts in /usr/doc/ppp-*.*.*/scripts work for me with
>very minimal screwing around.
You were lucky you have an old fashioned ISP who uses login
authentication. The problem comes when even teh ISP does not know what
they use (Joe, who left three months ago, set it all up and wrote the
software to allow a Win95 box to connect. But nobody now knows or cares
what it was he did). There are systematic ways of finding out what to
do even without your ISPs help.
Some will actually use both login and pap or chap, and a few will use
Microsofts brand new non-standard version of chap (chap 81) in which
case you are really out of luck. The problem is that none of the
standard scripts cover all the bases. Each will work for some people and
not for others-- those for whom it works will swear by it, and those for
whom it does not will curse the world, not realising that it is their
ISP which is different. It was because of this that I wrote the page
http://axion.physics.ubc.ca/ppp-linux.html
to try to present a systematic attack on the problem.
A script which did what that page suggests would be nice, but not
trivial towrite. wvdial claims to do it, but I, and others, have not
been able to get it to work (I don;t know why). It is also a compiled
program, and altering how it works is non-trivial.
------------------------------
From: "Curt" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.hardware,comp.periphs.scsi
Subject: Re: Linux Networking Performance Question?
Date: Sat, 3 Apr 1999 21:27:40 -0500
I would guess the NFS link would be the bottleneck. Even if this is a
separate 100MB ethernet
connection.
I would be interested in learning what you find out.
David Travers wrote in message ...
>Please take the time to read this post
>
>Server 1 : HP9000 K200 with 384MB Ram
> HP-UX 10.30
> InfoFlo 7.0 (Enterprise Resource Planning) System running
>on UniData 3 database
> 14GB Hard Disk Ultra Wide SCSI
> 100BaseT Network Card
>
>
>Server 2 : Linux Server with 128MB Ram
> Linux 2.0.36 kernel + FreeBSD NFS Lock Deamon
> 25GB Hard Disk Ultra2 SCSI
> 100BaseT PCI Network Card
>
>
>--------------- Switched 100BaseT Network ---------------
>| Server 1 | ------------------------------------------------------ |
>Server 2 |
>---------------
> ---------------
> |
> |
> -----------------------
> | PC Network | (40 PC's)
> -----------------------
>
> It would cost us over �10,000 pounds to upgrade the HP9000 hard disks and
>controller to Ultra2 SCSI (80Mbs) and have considered storing the data on
>linux boxes over the 100BaseT network.
>Our primary data is UniData database files. A linux box with Ultra2 drives
>and controller can be purchased for under �2000 with increased storage
>space.
>
>The data would be shared between the boxes using an NFS link.
>
>Questions I Have
>
>1) What would the performance increase be like if I were to go for this
>method, considering our current local HP drives are rated at 20Mbs.
>
>2) Where would the primary bottleneck be.
>
>3) As the network is switched, would there be a degredation in network
>performance.
>
>Any tips or information would be most appreciated.
>
>David Travers
>[EMAIL PROTECTED]
>IT Department
>Blairs of Scotland, UK : Manufacturer of quality timber double glazed
>windows and doors
>
>
>
>
>
------------------------------
Date: Sun, 04 Apr 1999 02:25:39 +0000
From: Lee McKusick <[EMAIL PROTECTED]>
Subject: Re: [Help] PPP worked but now fails [modem q]
Matt, Check your modem manual for the specified initialization string,
compare that string with what minicom does when you use minicom
to dial up your ISP with the problem modem.
My somewhat oddball Motorola Modem Surfer external modem did strange
things
until I removed the ATZ initialization string from my PPP script.
I was able to start Minicom, type ATZ and see trouble.
Without ATZ I was able to manually dial my Internet Service Provider and
manually go through the connection dialogue and get confidence that the
connection ought to work.
Another dialup gotcha... the ISP seemed to be failing to catch the first
character of my login and password text strings. Simple fix: Add five
blank spaces ahead of my login name and five blank spaces ahead of my
password in the PPP script.
Matt wrote:
>
> Hi,
>
> I have PPP working ok on another box and it works fine
> however I have come accross another problem on this box
>
> My modem is a 3com message 56k v90 external
> Linux SUSE 5.3 (connection vi cua0 (com1).
>
>> Apr 3 08:15:27 compuserve chat[200]: ATDT08450801000^M^M
> Apr 3 08:15:27 compuserve chat[200]: CONNECT -- got it
> Apr 3 08:15:27 compuserve chat[200]: send (^M)
> Apr 3 08:15:27 compuserve chat[200]: expect (Host Name:)
> Apr 3 08:15:27 compuserve chat[200]: 49333/ARQ^M
> Apr 3 08:16:12 compuserve chat[200]: ^\@`^N^\^\GG^\G^N^\@
> Apr 3 08:16:12 compuserve pppd[197]: Connect script failed
> Apr 3 08:16:12 compuserve pppd[197]: Exit.
> Apr 3 08:16:12 compuserve chat[200]: alarm
> Apr 3 08:16:12 compuserve chat[200]: Failed
> Apr 3 08:17:04 compuserve kernel: PPP: ppp line discipline successfully
> unregistered
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------------------------------
From: yan seiner <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.x,alt.os.linux,comp.os.linux.misc,comp.os.linux.setup
Subject: Re: Best Free X Windows Server for Win95/98 Box on Samba/Linux Network?
Date: Sun, 04 Apr 1999 01:43:36 +0000
VNC, formerly from oracle research (www.orl.co.uk) now something else as
AT&T has bought them. The best server you'll find, fits on a floppy, I
run 2 sessions on my NT WS (one for the linux server, one for the NT
server) and have three desktops for the price of one. Never crashed.
Source is available and they even post some of the mods people have
made.
BTW, to the original poster:
Don't cross post to the universe. It's not polite.
Yan
Eugene VonNiederhausern wrote:
>
> Cyrus Mehta wrote:
>
> > Hi,
> >
> > I am creating a dual Windows/Linux environment using Samba for file serving
> > on a standard Ethernet network. I was wondering what kind of X server software
> > for the Windows side I could use to run some X windows apps off of the LInux Box.
> >
> > Reliability is the most important factor, windows will crash often enough without
> > the help of the X server.
> >
> > Any ideas?
> >
> > CKM
>
> Yesterday, I found the best X server/viewer for windows (and linux) that I have
> seen yet and it is free (GNU Public License). It is called VNC from Olivetti and
> Oracle research laboratory. You can connect from linux->windows, windows->linux,
> linux->linux, windows->windows. It is a lot better than any of the other products
> I have seen ot this kind. I don't have the URL (it is at work) you can email me or
> post a reply and I will get it and reply.
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: recursive catching of www-pages?
Date: Sun, 04 Apr 1999 02:37:35 +0000
EZ E wrote:
>
> Use wget. It should be included in most distributions. If not, you can get it
> by FTP off sunsite.unc.edu. Lots of HTMLized man pages are available, too.
Unfortunately, metalab.unc.edu (formerly sunsite) is going down, and
will be resurrected as a mirror for download.com :(
If you're into writing code, there are modules for Perl that will
do what you want. Else use wget.
Regards,
Ed
Q: Why do PCs have a reset button on the front?
A: Because they are expected to run Microsoft operating systems.
------------------------------
From: Lee McKusick <[EMAIL PROTECTED]>
Subject: Netscape bus error when I click on "email" tag
Date: Sun, 04 Apr 1999 02:38:49 +0000
When I run the Netscape 4.5 browser, Netscape crashes when I click on
one of those "email address tags".
I think I have a setup problem because I am using a Netscape 4.5 version
I directly downloaded from netscape.
I have set the MOZILLA_HOME variable, I am running RedHat 5.2, and I
even had this problem when I was running RedHat 4.2 and the Netscape 4.0
of a few years ago.
I'd like to fix this, or can you tell me, does your Netscape from the
RedHat distribution disk click on the "email address" tag OK?
Thanks for a reply. Lee McKusick
------------------------------
From: [EMAIL PROTECTED] (Bill Unruh)
Crossposted-To: comp.os.linux.setup,comp.os.linux.questions,comp.os.linux
Subject: Re: pppd woes (the eternal saga)
Date: 4 Apr 1999 02:52:14 GMT
In <[EMAIL PROTECTED]> "Kevin P. Miller" <[EMAIL PROTECTED]> writes:
>Typically, when a program requires a single parameter, and that parameter
>contains white space, you can use quotes to make it a sigle argument. ie:
>/usr/sbin/pppd /dev/ttyS1 57600 debug user "James Fannin" connect \
"/usr/sbin/chat -v '' ATD5555555 CONNECT '' ogin: James Fannin assword: passwd"
^^^^^^^^^^^^
You had better put quotes around this as well-- 'James Fannin'
or it will send James after it receives ogin: and then expect Fannin,
which is liable never to happen.
------------------------------
From: yan seiner <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.x,alt.os.linux,comp.os.linux.misc,comp.os.linux.setup
Subject: Re: Best Free X Windows Server for Win95/98 Box on Samba/Linux Network?
Date: Sun, 04 Apr 1999 01:47:39 +0000
The cool thing about VNC is that it runs in a web server if you want
it. And it's proxyable. Pretty cool when you can bring up a windows
app in a web server window.
I've run Autocad (no lite app) from a 486/100 win95 laptop, dialing into
a Linux box, geting forwarded to, and controlling, an NT workstation
over phone lines. Poor but acceptable performance.
Yan
dproc wrote:
>
> Eugene VonNiederhausern wrote:
>
> > Cyrus Mehta wrote:
> >
> > > Hi,
> > >
> > > I am creating a dual Windows/Linux environment using Samba for file serving
> > > on a standard Ethernet network. I was wondering what kind of X server software
> > > for the Windows side I could use to run some X windows apps off of the LInux Box.
> > >
> > > Reliability is the most important factor, windows will crash often enough without
> > > the help of the X server.
> > >
> > > Any ideas?
> > >
> > > CKM
> >
> > Yesterday, I found the best X server/viewer for windows (and linux) that I have
> > seen yet and it is free (GNU Public License). It is called VNC from Olivetti and
> > Oracle research laboratory. You can connect from linux->windows, windows->linux,
> > linux->linux, windows->windows. It is a lot better than any of the other products
> > I have seen ot this kind. I don't have the URL (it is at work) you can email me
>or
> > post a reply and I will get it and reply.
>
> That sounds really interesting. At the moment I use MIX, which is not free (binary
> only and other restrictions) but it costs nothing.
>
> I downloaded it from MicroImages <http://www.microimages.com>
>
> It doesn't crash my Windows 95* system. It includes a Window Manager (twm) and its
>own
> fonts which run as native on the Windows box taking some load off the network. This
> is important to me as I don't have a real network, just a serial cable between two
>COM
> ports running PPP (pppd) and the X client applications on the Linux* system, and
> Dial-Up Networking on Windows. It is only 115200 bits per second! That is not
>enough
> for Netscape, but performance is excellent for large xterms and lynx.
>
> If for some reason the GPL X Server recommended by Eugene doesn't work, why not try
> MIX?
>
> Yours, dproc
>
> * Windows 95 is a registered trademark of Microsoft Corporation.
> * Linux is a registered trademark of Linus Torvalds
------------------------------
From: Dave Fanjoy <[EMAIL PROTECTED]>
Subject: RH5.2 and 3c509b trouble
Date: Sat, 3 Apr 1999 22:00:32 -0500
Hi, I was wondering if I could get some input on a problem with
RH5.2 and a 3c509b NIC. I've read the FAQs, this newsgroup, and the
HOWTOs, and I'm stuck.
My system is a dual boot NT / RH5.2. NT sees and uses the NIC
correctly, but linux doesn't. PnP is turned off on both the BIOS and the
card. When booting, linux recognizes the NIC and sets the right hardware
addresses, then says "Network Unreachable".
When I type ifconfig or netstat, it shows eth0 as up and working
with no errors. However, I can't get anything to work over the network.
I know all of the network addresses are right, because I have run a test
computer from the same port with the same settings, and it works.
Has anyone seen this sort of behaviour? I'm relatively new to
networking, so I might have overlooked something. Feel free to post here
or email me directly.
Dave Fanjoy
------------------------------
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End of Linux-Networking Digest
******************************
