Linux-Networking Digest #592, Volume #11 Sat, 19 Jun 99 18:13:59 EDT
Contents:
linux masq + win 98 = yucky latency (Bill =?iso-8859-1?Q?S=E1nchez?=)
Can't locate module ppp-compress (Arthur)
Re: (Q) Seeing if Ethernet is working (Andrzej Filip)
Re: terminal emulation through TCP/IP ("T.E.Dickey")
Network performance/benchmarking (Rod Smith)
Re: 3Com Ethernet Card ("Dr. Joachim Neudert")
Re: Monitoring access for virtual hosts ("Dr. Joachim Neudert")
Re: How do I create a custom (Menuing) Shell? (Monte Phillips)
Network/samba...got it working, but??? (LinuxFool)
Re: Samba/win98 (LinuxFool)
Re: Linksys LNE100TX & Tulip? (Rod Smith)
Re: Monitoring access for virtual hosts (Matt Gostick)
NETWARE in LINUX ("andres")
Re: BNC Cable Limit in a peer to peer n/w (Dietrich Grell)
Re: NETWARE in LINUX ("Gregory D. Horne")
Re: Question >> How to have one machine for everything ("Gregory D. Horne")
wvdial and ISDN-useless? ("Peer Oehlschl�gel")
Re: (Q) Seeing if Ethernet is working ("Gregory D. Horne")
Re: running ppp as non-root ("Gregory D. Horne")
----------------------------------------------------------------------------
From: Bill =?iso-8859-1?Q?S=E1nchez?= <[EMAIL PROTECTED]>
Crossposted-To: athome.users-unix
Subject: linux masq + win 98 = yucky latency
Date: Sat, 19 Jun 1999 19:46:28 GMT
Hiiiiiidey ho!
Well, I've been masq'ing since 2.0.35, and never had any
probs. Now I'm running into a strange problem. I mean...a FRIEND of
mine who has @home has been running into this strange problem.
HARDWARE:
Gateway machine: P75 40MbRAM RedHat 6.0, 2.2.9 kernel,
3c509 to cable modem, 3c905 to internal network (not that it
matters, but so's you know).
LAYOUT:
Inside the network, there's a coupla unix boxes running
various and sundry tasks...usually with netscape running on X.
There's also the win98 machine my friend uses for games, running
Office, etc.
THE PROBLEM:
The unix machines (slackware, redhat, solaris 7,
solaris 2.6) *never* have any problems connecting to the outside.
The win98 box, however, experiences these occasional, and
sometimes frequent, "seizures". I call them that because they
are unpredictable in frequency and length, and I'm basically
cut off from the outside world until they clear up...sometimes
a matter of 30 seconds, sometimes 4 minutes or more.
During a seizure, the win98 box can communicate with
any other machines inside the internal network, using any
protocol. Also, the unix boxes have no similar problems during
these events. They can talk to the outside world just as easily
as before.
It's *very* puzzling. I need to fix this, though, for the
obvious reason that an unreliable internet connection is not
acceptable.
RELEVANT HISTORY:
This used to happen much more frequently. When I first
established this setup, the seizure frequency and length were
outrageously high. I hit the books and discovered a likely
candidate: I was using the RH 6 stock kernel, and wasn't sure
if defragmentation was set to 1. Sure enough, recompiling the
kernel did wonders. I rarely noticed seizures after that...
Until now.
REQUEST FOR COMMENTS:
Has anyone experienced a similar situation? How
was it solved? Does anyone have recommendations on lowering
or eliminating the number of these incidents? My friend
could really use the help. Thanks.
-Bill
------------------------------
From: [EMAIL PROTECTED] (Arthur)
Subject: Can't locate module ppp-compress
Date: 18 Jun 1999 16:13:30 GMT
Reply-To: [EMAIL PROTECTED]
A beginner question - If I look at /var/log/messages after connecting
to my ISP, I see 3 lines towards the end:
modprobe: can't locate module ppp-compress-21
modprobe: can't locate module ppp-compress-26
modprobe can't locate module ppp-compress-24
Everything seems to work fine, and I connect with no problem. I was
just wondering what these messages mean, is it anything i should be
concerned about, and, if so, how do I correct them?
If it matters, the system is RH 6.0.
Thanks
------------------------------
From: Andrzej Filip <[EMAIL PROTECTED]>
Subject: Re: (Q) Seeing if Ethernet is working
Date: Sat, 19 Jun 1999 20:58:37 +0200
You may use tcpdump to dump all packets your ether net card sees.
(Packets between other computers too).
Timothy Murphy wrote:
> This is a theoretical enquiry, rather than a practical one.
>
> Is there any way of knowing if one's Ethernet is connected
> which does not assume that IP addresses are properly set up?
>
> I know one can look at the lights on the card
> in most if not all cases,
> but that is a bit hit-and-miss.
>
> It would be nice to know, in the case of problems,
> that the bottom layer at least was OK.
>
> --
> Timothy Murphy
> e-mail: [EMAIL PROTECTED]
> tel: +353-1-2842366
> s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland
--
Andrzej (Andrew) A. Filip
mailto:[EMAIL PROTECTED] http://www.bigfoot.com/~anfi
Postings: http://www.deja.com/profile.xp?author=Andrzej%20Filip&ST=PS
------------------------------
From: "T.E.Dickey" <[EMAIL PROTECTED]>
Subject: Re: terminal emulation through TCP/IP
Date: Sat, 19 Jun 1999 20:03:55 GMT
Andy Marks <[EMAIL PROTECTED]> wrote:
> Is there a way of running terminal emulation software on a win9x box to
> connect to a Linux box over TCP/IP.
there are a number of terminal emulators (Kermit, Tera Term come to mind)
--
Thomas E. Dickey
[EMAIL PROTECTED]
http://www.clark.net/pub/dickey
------------------------------
From: [EMAIL PROTECTED] (Rod Smith)
Subject: Network performance/benchmarking
Date: Sat, 19 Jun 1999 20:22:01 GMT
Reply-To: [EMAIL PROTECTED]
Hi,
I was wondering how one would go about benchmarking Linux network
performance. I ask because I've got a three-computer network (one Red
Hat 6.0 server with a LinkSys 10/100 NIC using a PNIC Tulip clone
chipset; one x86 box that boots between Windows 98, Windows NT, OS/2, and
Mandrake Linux 6.0, which had a Kingston NIC with a Tulip 21143 chipset,
but that board went south recently and I've replaced it with a D-Link
DFE-530TX with a VIA Rhine chipset; and one iMac that boots between MacOS
and LinuxPPC pre-R5, using whatnever NIC is built into the iMac), and
when I time transfers of large files (~50MB), I get speeds of only 10-35
Mbps, depending upon what protocols, machines, and OSes are involved.
I've tried ftp, NFS, Samba, Appletalk/netatalk, and scp for the
transfers. Sometimes the collision light on my LinkSys 10/100 hub
flickers during these transfers, but not always.
So, is a maximum of 35% of theoretical performance reasonable in a small
100 Mbps network like this, or should I be seeing better? If it should
be better, any ideas on where the problem might lie?
--
Rod Smith
[EMAIL PROTECTED]
http://www.channel1.com/users/rodsmith
------------------------------
From: "Dr. Joachim Neudert" <[EMAIL PROTECTED]>
Subject: Re: 3Com Ethernet Card
Date: Sat, 19 Jun 1999 22:09:05 +0200
Gregory Conron <[EMAIL PROTECTED]> schrieb in im Newsbeitrag:
[EMAIL PROTECTED]
> Hi John,
> You're correct. I'm running SuSE 6.1 with Kernel 2.2.10. There is indeed
> support for the card there. However, I'll be damned if I can get the
network
> running. Using Yast I can config the card, but within the network section
> DHCP is disabled. Andara (my cable modem supplier) runs a DHCP server. I
> also have an error the eth0eth0 (yep, there twice in the error message) is
> unsupported by this card. I've checked rc.config and there is only on eth0
> entry within it. I'm doing something wrong, I just don't quite know what.
> Cheers,
> Greg Conron
Sorry that I may not be very helpful identifying your problem, but anyway I
can assure you that SuSE 6.1 (well, in fact my distribution is still 6.0)
with the kernel 2.2.10 works with this card. Just compiled it. I will try to
telnet over to this machine of mine and send you a copy of my configuration
file (.config in /usr/src/linux).
Kind regards
Dr. Joachim Neudert
> John Hovell wrote:
>
> > What kernel version are you booting? I think everything north of 2.0.x
> > has support for this card (maybe even earlier).
> >
> > say yes to CONFIG_VORTEX under CONFIG_NET_VENDOR_3COM
> > If you use menuconfig, this is 3c90x support (Vortex/Boomerang).
> >
> > I am running 2.2.5-22 and have 3 3c905b's all running quite happily.
> >
> > Good luck
> > Write back if you need more specifics.
> >
> > -John
>
------------------------------
From: "Dr. Joachim Neudert" <[EMAIL PROTECTED]>
Subject: Re: Monitoring access for virtual hosts
Date: Sat, 19 Jun 1999 22:28:42 +0200
Karel Bemelmans <[EMAIL PROTECTED]> schrieb in im Newsbeitrag:
7kffqt$n3t$[EMAIL PROTECTED]
> Hello,
>
> In a few weeks, I'm going to run my own webserver. It will have a lot of
> virtual hosts, all assigned to the box by a CNAME in the DNS records. I
> also would like to keep stats of what traffic goes to what hosts. At this
> moment I use Accesswatch2 on another server to go through the apache log
> of the virtual hosts to analyse the accesses.
>
> But now someone told me told I better gave each virtual hosts a dedicated
> IP adres because you can do better logging that way.
>
> I've already found out how to assign all the different IP addresses to my
> eth0 (+ routing), but how about the logging ? What program can I use to
> log the traffic on all the different eth0:x devices ?
>
> Some tips from more expirienced users are also very welcome !
>
webalizer does the trick. Its GNU-software, available in SuSE and in all the
other major distributions as well, i think.
Look at www.5sl.org/webalizer/5sl and click the detailled links. And look
at www.5sl.org/webalizer, where you find some directories leading to their
virtual webserver logs. It is all done with only one IP. No need to waste
IPs (we have only one half class c net).
Every night, the apache log files are analyzed automatically.
And have a look at webmin: www.webmin.com. Its extremely easy to set up
virtual apaches and cnames in bind4 or bind 8 with it.
We are some amateurs in an Internet club (B�rgernetz, kind of a citizens
net) and are managing about 20 domains as a non-profit organisation.
Kind regards
Dr. Joachim Neudert
Herrsching, Germany
[EMAIL PROTECTED]
www.5sl.org/webcam
------------------------------
From: [EMAIL PROTECTED] (Monte Phillips)
Crossposted-To: comp.os.linux.admin,comp.os.linux.misc
Subject: Re: How do I create a custom (Menuing) Shell?
Date: Sat, 19 Jun 1999 19:31:23 GMT
I presume you are referring to menus like the old DOS batch file menus
that looked somewhat like this
Welcome to the DOS Slave Menu
1. Appications
2. Time Wasters
3. Quit & Go to Work
(pick a number u ,may get lucky)
You can write such a script in several of the shells or in Perl. put
the menu script in each particular groups dir, if you have cuspomized
them by group.
the prev gentleman seemed to misunderstand your request.
>"John Rappold" <[EMAIL PROTECTED]> wrote:
>
>>Our VMS system allows lets certain groups of users telnet into a custom
>>shell that has a menuing system....they can cursor to items to start an app
>>or press a number.
>>
>>Can someone point me in the right direction on how to setup something like
>>this in Linux? I'm a newbie.
>>
>Set the default shell for the user, either by using chsh or by
>editing /etc/passwd directly.
>
>Norman
------------------------------
From: [EMAIL PROTECTED] (LinuxFool)
Subject: Network/samba...got it working, but???
Date: Sat, 19 Jun 1999 19:33:42 GMT
Okay I can ping from one machine to another, but in win98 network
group I cant see the linux machine ???
linuxfool
------------------------------
From: [EMAIL PROTECTED] (LinuxFool)
Subject: Re: Samba/win98
Date: Sat, 19 Jun 1999 19:19:43 GMT
On Sat, 19 Jun 1999 17:01:12 GMT, [EMAIL PROTECTED] (Monte Phillips)
wrote:
Nice words of encoragment...thanks
>Well given your track record with ppp, its slightly iffy...
>BUT This site has a step by step howto for complete setup of samba.
>steps for both linux and the win machine. (and they really work <G>)
>http://www.sfu.ca/~yzhang/linux/samba/index.html
>
>g'Luk
>On Sat, 19 Jun 1999 11:02:41 GMT, [EMAIL PROTECTED]
>(LinuxFool) wrote:
>>I've given up on my ppp problems for now...
>>I have my Linux box hooked into my network (win98), now what do I have
>>to do to get these machines to see one another ???
>>LinuxFool
>
------------------------------
From: [EMAIL PROTECTED] (Rod Smith)
Subject: Re: Linksys LNE100TX & Tulip?
Date: Sat, 19 Jun 1999 20:11:36 GMT
Reply-To: [EMAIL PROTECTED]
[Posted and mailed]
In article <[EMAIL PROTECTED]>,
root <[EMAIL PROTECTED]> writes:
> Hi ,
>
> Just installed Redhat 6.0. The HOWTO on Ethernet says the tulip driver
> will work with the Etherfast 10/100 cards, with the exception of some
> proprietary PNIC chipsets.
The PNIC chipsets are a Tulip clone chipset. Boards with these chipsets
don't work well with the version of the kernel included with RH 6.0
(though I've seen some reports of success, so perhaps RH patched their
install kernel -- but your experience suggests otherwise).
> Apparently the DEC chipsets work with
> tulip. The Linksys support page doesn't say anything about chipsets,
> but simply states the tulip driver works.
The LinkSys site includes the updated Tulip drivers that work with the
PNIC chipset.
> Is there another driver for LNE100TX cards? I do not have the DEC
> chipset (The large chip on the card has a Linksys stamp).
The PNIC chip in the LinkSys board doesn't have "PNIC" on it; it's
silkscreened with LinkSys's name. (I've also got one of these boards in
one of my computers. With the updated drivers, Linux does recognize it as
a PNIC chipset.)
> Any advice?
It sounds like you don't need this for installation, so you need to get
the updated tulip.c file, replace the tulip.c file in a kernel source
tree, recompile, and use the new kernel and/or kernel modules. This
process is a bit much to explain to a newbie in a newsgroup posting, so I
suggest you get a Linux book that explains kernel compilation and follow
the directions there, after you replace the tulip.c file (it should be in
the /usr/src/linux/drivers/net directory). Alternatively, you can get
the information you need on kernel compilation from various web sites,
though I don't have any URLs offhand, aside from pointing you at
http://www.linux.org, which will probably have some good links.
If all this is a bit much, you could replace the NIC, but IMHO the kernel
compilation dance is something every Linux user (or administrator,
anyhow, which is often the same thing) should know how to do. If you go
with replacing the board, the 3COM 3c905b and Intel EtherExpress are both
often recommended, though I've never used either myself. They're also
relatively expensive boards. The D-Link DFE-530TX uses the VIA Rhine
chipset, for which Linux drivers do exist in RH 6.0. This board is less
expensive, but I get the impression it's not a blazing performer in terms
of speed. I've recently installed one in one of my systems, though, and
it at least works reliably.
--
Rod Smith
[EMAIL PROTECTED]
http://www.channel1.com/users/rodsmith
NOTE: Remove the "uce" word from my address to mail me
------------------------------
From: [EMAIL PROTECTED] (Matt Gostick)
Subject: Re: Monitoring access for virtual hosts
Date: Sat, 19 Jun 1999 20:46:51 GMT
>But now someone told me told I better gave each virtual hosts a dedicated
>IP adres because you can do better logging that way.
I do the same thing.. a bunch of virtual hosts off ONE IP address.
I use httpd 1.3.6 and with the virtual hosts I can specify differnt
log files for each virtual host.
ie. in httpd.conf
<VirtualHost 111.222.333.444>
ServerAdmin [EMAIL PROTECTED]
DocumentRoot /www/www.domain.com
ServerName www.domain.com
ErrorLog /var/log/apache/www.domain.com-error_log
CustomLog /var/log/apache/www.domain.com-access_log common
</VirtualHost>
For the next I would just give a different log file names... they
both use the same IP addresses.
Enjoy!
-Matt
------------------------------
From: "andres" <[EMAIL PROTECTED]>
Subject: NETWARE in LINUX
Date: Sat, 19 Jun 1999 16:53:33 -0400
hello everyone:
Has anybody tried to install netware client from caldera in a redhat 5.2
(I mean the free 3-users license). ?
Any idea how to do it?
Should I compile the kernel with ipx support or not ?
Thanks for any help.
------------------------------
From: Dietrich Grell <[EMAIL PROTECTED]>
Crossposted-To: alt.os.linux
Subject: Re: BNC Cable Limit in a peer to peer n/w
Date: Sat, 19 Jun 1999 21:00:19 GMT
Manohar Singh wrote:
> hi there,
> I use a small office LAN comprising of 4nodes running on a Linux
> server.I now need to connect another computer into this LAN which is about
> 25 mtrs away from the server. I cannot afford to use repeaters or expensive
> hardware and so can i use a BNC cable to induct this computer into the peer
> to peer thingy? I use the LAN in a cyber cafe setup to surf the net through
> a 56 kbps dial up line
>
> Secondly : what is the maximum distance that a Hub-NIC-BNC cable peer
> to peer network can sustain at 10base 100 Ethernet LAN ?
>
> I would be grateful to anyone who would help me out in this .
>
> Warm regards,
> Manohar Singh.
The last place I looked for this answer was in the book that came with my
Lynksys
"network in a box". They say the maximum for 10BaseT (twisted pair/RJ45) is 100
meters,
and the max for 10Base2 (BNC/RG58 Coax) is 200 meters. Not sure about 100BaseT
limits,
but as long as you use quality Cat. 5 cable you _should_ be ok with 75 meters.
My friend's house is about 100 meters away, and I'm thinking about running some
cable between his house and mine for some Quake/Quake2 deathmatch mayhem :P
My planned setup consists of my current network connected to his through some
inexpensive
486's and a whole lot of RG58 cable. I figure if any lighning hits the cable,
it'll only kill the 486's.
I'm still looking for some lightning arrestors just in case....
If I remember, I'll let everyone know how it comes out.
------------------------------
From: "Gregory D. Horne" <[EMAIL PROTECTED]>
Subject: Re: NETWARE in LINUX
Date: Sat, 19 Jun 1999 17:27:11 -0400
andres wrote:
> hello everyone:
>
> Has anybody tried to install netware client from caldera in a redhat 5.2
> (I mean the free 3-users license). ?
>
> Any idea how to do it?
>
> Should I compile the kernel with ipx support or not ?
>
If I remember correctly, it has been awhile since rebooting this Linux
box, the IPX support is compiled into the kernel as distributed. Correct
me if I am mistaken as I have had no reason yet to interface with a Novell
Netware server or workstation running the NW client.
Gregory D. Horne
Information Technology Architect
The Network Laboratorium (NetLab)
Ottawa ON
CA
>
> Thanks for any help.
------------------------------
From: "Gregory D. Horne" <[EMAIL PROTECTED]>
Subject: Re: Question >> How to have one machine for everything
Date: Sat, 19 Jun 1999 17:40:07 -0400
Top Cat wrote:
> This might be an easy question for somebody but I really need it
> badly. If out network is not up soon, my boss will be very upset.
>
> I have one machine only running RH 5.2 connected to the internet thru
> an NT gateway. Now I need this machine to act as our domain name
> server (both ns1 and ns2). Also this machine should be our mail server
> AND a mail server. This setup is only temp till I can get my hands on
> another machine and split these services between them.
>
> Our domain lets say abc.com and I have almost a full class c address
> to play with.
>
> Reaaly appreciate any help.
>
> TIA
Read the How-TOs. Most distributions come with the full compliment of
HOW-TOs and these can also be read from the Internet. The exact
URL escapes me at the moment but a search engine check on 'Linux HOW-TO'
should point you in the right direction.
Otherwise, hire an experienced Linux consultant to get you over the
hurdle.
Good luck!
Gregory D. Horne
Information Technology Architect
The Network Laboratorium (NetLab)
Ottawa ON
CA
------------------------------
From: "Peer Oehlschl�gel" <[EMAIL PROTECTED]>
Subject: wvdial and ISDN-useless?
Date: Sat, 19 Jun 1999 23:27:47 +0200
Why does wvdial not find my correctly installed ISDN-card?
anyone kows?
------------------------------
From: "Gregory D. Horne" <[EMAIL PROTECTED]>
Subject: Re: (Q) Seeing if Ethernet is working
Date: Sat, 19 Jun 1999 17:34:01 -0400
Timothy Murphy wrote:
> This is a theoretical enquiry, rather than a practical one.
>
> Is there any way of knowing if one's Ethernet is connected
> which does not assume that IP addresses are properly set up?
At the command prompt:
$ ping localhost
This should respond with successful acknowledgements if the card is in
fact installed and being recognized by Linux. Of course this does
assume IP is enabled on your system which in Linux is the default.
Gregory D. Horne
Information Technology Architect
The Network Laboratorium (NetLab)
Ottawa ON
CA
>
> I know one can look at the lights on the card
> in most if not all cases,
> but that is a bit hit-and-miss.
>
> It would be nice to know, in the case of problems,
> that the bottom layer at least was OK.
>
> --
> Timothy Murphy
> e-mail: [EMAIL PROTECTED]
> tel: +353-1-2842366
> s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland
------------------------------
From: "Gregory D. Horne" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.misc
Subject: Re: running ppp as non-root
Date: Sat, 19 Jun 1999 17:46:18 -0400
scable wrote:
> Hi all.
>
> Can anybody out there tell me how to make a ppp interface available to
> non-root users in RH6.0?
> The Red Hat FAQ page on this question was not very helpful. Thanks.
At the command prompt:
$ chmod u+s /usr/sbin/pppd
And assuming all else is properly configured all users should be able to
use the ppp interface.
Gregory D. Horne
Information Technology Architect
The Network Laboratorium (NetLab)
Ottawa ON
CA
------------------------------
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