Linux-Networking Digest #218, Volume #11 Thu, 20 May 99 20:13:42 EDT
Contents:
Re: Small private network woes (James R. Barnett, Jr.)
mix hub and bnc (peter)
LINUX ability to handle large beowulf clusters (Jon Roberts)
Red Hat 5.2 (Arthur Merar)
Re: Colors... (vagrant)
Re: Slow PPP connection with RH 6.0 (G.R. Svenddal)
Re: RHL6, Samba 2.0.3 NO Workee! - SUCCESS!!! ("W.A. Scheer")
Re: Lost my NIC (Kwan Lowe)
Re: Redhat 6.0 pump/dhcp woes... (Alba)
Re: trafic loging ("Curt")
Squid Fatal Error (Bob Fitzgerald)
PPP Slow ? A possible solution... worked for me. (G.R. Svenddal)
Re: Problem telnetting to a machine ("emenso")
Re: Tulip.c Linux and Win98 (Jim Roberts)
Re: routing problems with Redhat 5.2 ("Curt")
Re: sendmail ("Ian")
Samba_2.0 NT4_SP3 and Linux SuSE6.1 (Matt)
What is minimal machine to run as router/gateway/web-/mail-server? (N. Santoro)
Re: Wireless Bridge ("Curt")
----------------------------------------------------------------------------
From: James R. Barnett, Jr. <[EMAIL PROTECTED]>
Subject: Re: Small private network woes
Date: Thu, 20 May 1999 16:59:31 -0500
On Wed, 19 May 1999, [EMAIL PROTECTED] wrote:
>Also make sure that you can ping the other machines first -- if you cannot, even
>with the numbers ('ping 192.168.1.1'), then the basic network or the ip is not
>working -- fix that first.
>
Actually, I can't ping by name or ip. That is the problem.
here is the output of route -n by arson (192.168.1.1):
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
208.128.7.17 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 3 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo
0.0.0.0 208.128.7.17 0.0.0.0 UG 0 0 8 ppp0
here is ifconfig:
lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
RX packets:47 errors:0 dropped:0 overruns:0 frame:0
TX packets:47 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
eth0 Link encap:Ethernet HWaddr 00:10:5A:0B:50:2F
inet addr:192.168.1.1 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:56 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
Interrupt:10 Base address:0x300
ppp0 Link encap:Point-to-Point Protocol
inet addr:208.128.7.90 P-t-P:208.128.7.17 Mask:255.255.255.0
UP POINTOPOINT RUNNING MTU:1500 Metric:1
RX packets:342 errors:1 dropped:1 overruns:0 frame:0
TX packets:318 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
Memory:12ec038-12ecc04
here is the output of route -n by tireiron (192.168.1.2):
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.1 0.0.0.0 255.255.255.255 UH 0 0 144 eth0
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 5 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 15 lo
0.0.0.0 192.168.1.254 0.0.0.0 UG 0 0 26 eth0
Here is the ifconfig for tireiron:
lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
RX packets:104337 errors:0 dropped:0 overruns:0 frame:0
TX packets:104337 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
eth0 Link encap:Ethernet HWaddr 00:10:5A:0C:9E:1C
inet addr:192.168.1.2 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:258 errors:0 dropped:0 overruns:0 carrier:0
collisions:0
Interrupt:10 Base address:0x300
I think the gateway is wrong on tireiron's route, but I am not sure how to
change it. I know it is not the ethernet cards. What am I missing? Thanks for
the help.
James
------------------------------
From: [EMAIL PROTECTED] (peter)
Subject: mix hub and bnc
Date: Thu, 20 May 1999 22:16:06 GMT
is this possible ?
+---+
| |------machine1
| | ...
| H |------machine7
| U |
| B |------ADAPTER2BNC----machine8---machine9---TERMINATION
+---+
what kind of adapter do I need ? (I dont even know the name of the term
for the cables ...)
are there disadvantages (beside the fact that machine8, machine9 are
connected with 10Mbit instead of 100Mbit)
peter
=================
pilsl@
ANTISPAM
goldfisch.atat.at
------------------------------
From: Jon Roberts <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.system,comp.os.linux.advocacy
Subject: LINUX ability to handle large beowulf clusters
Date: Thu, 20 May 1999 15:01:43 -0700
I was talking with a friend who is researching a supercomputer design
that may become one of the top 10 machines in the world. I mentioned
Beaowulf Linux clustering and the response was that Linux is good but
can't support more than about 300 nodes in a cluster (and they plan on
being larger than that). Is this true? If there IS a way around this
limitation I'd like to know so I can make further recommendations for
Linux to him.
------------------------------
From: [EMAIL PROTECTED] (Arthur Merar)
Subject: Red Hat 5.2
Date: Thu, 20 May 1999 04:06:33 GMT
Hello,
I have a 3COM 3C509B and I'm running Linux Red Hat
5.2. I cannot seem to do anything with the card.
I have a Windows 98 machine and they are all on
the hub and each has it's own IP. I cannot seem
to ping anything.
Does Red Hat not like this type of NIC or do I
need a new driver??
Please send e-mail.....
Thanks,
Arthur
[EMAIL PROTECTED]
------------------------------
From: vagrant <[EMAIL PROTECTED]>
Subject: Re: Colors...
Date: Wed, 19 May 1999 23:14:49 -0500
root wrote:
> How can I set the back/foreground colors for each of my console screens
> (F1 through F6)??
>
> I remember doing this when setting up SCO Unix boxes YEARS ago....
>
> Any suggestions???
>
> Thanks!
man console_codes . that has all of the info on setting console
properties.
------------------------------
From: G.R. Svenddal <[EMAIL PROTECTED]>
Subject: Re: Slow PPP connection with RH 6.0
Date: 20 May 1999 22:31:03 GMT
Re: It must be interupt related..
I just installed RH 6.0 and found the same thing : very very slow PPP (
like 10 bytes/sec average ! ) I think I saw some comment somewhere that it
might be interupt related and sure enough : open kppp statistics and watch
what happens when you move your mouse : the data stops when your mouse does
and comes in when you move your mouse !
When I set up the PPP I was forced to use dev/ttys1 as there was no
dev/modem, I wonder if that has anything to do with it.......
================== Posted via SearchLinux ==================
http://www.searchlinux.com
------------------------------
Date: Wed, 19 May 1999 21:26:21 -0700
From: "W.A. Scheer" <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: Re: RHL6, Samba 2.0.3 NO Workee! - SUCCESS!!!
Well, I'm not really sure why things weren't working in the first place but
here's what I did to get things working:
1) UNINSTALLED Samba from my RHL6.0 'workstation' using RPM.
2) REINSTALLED Samba ... using RPM.
3) CHECKED my /etc/inetd.conf file to be certain that this line existed:
swat stream tcp nowait.400 root /usr/sbin/swat
swat
This enables using the 'SWAT' (Samba Web Admin Tool) to configure
SAMBA.
4) OPENED SWAT in Netscape Navigator by going to:
http://192.168.0.5:901
Note that '192.168.0.5' is the IP address of my machine. The ':901'
part tells Navigator to talk
to port #901
5) CONFIGURED my 'Global' settings as follows (make sure to 'commit
changes'):
workgroup = MYGROUP
netbios name = LINUX
security = user
encrypt passwords = yes
6) Created a directory called /export/share1. You can do this either the
GNOME File Manager tool or
with the mkdir command.
7) USED the 'Shares' section in SWAT to create a new share called 'share1'
and configured it as follows
(remember to 'commit changes'):
path = /export/share1
read only = no
guest ok = no
browseable = yes
available = yes
8) I then went to the 'Status' page of SWAT and started the smbd an nmbd
services.
Magically, my new 'share1' now works, and I can access it from my Win98
workstation!!! Sorry for a long post, but I wanted to be as helpful as
possible to others in this 'group having problems with SAMBA as well.
W.A. Scheer
------------------------------
From: Kwan Lowe <[EMAIL PROTECTED]>
Subject: Re: Lost my NIC
Date: Thu, 20 May 1999 22:48:05 +0000
Reply-To: [EMAIL PROTECTED]
Chad Cunningham wrote:
>
> My NIC has stopped working... Had it going for several months now, then
> the other day I booted into windows to resize some partitions. Went back
> to linux and the NIC isn't working now... When I try to activate eth0
> (via dhcp), I get the error
>
> insmod: /lib/modules/2.2.5-15/net/3c509.o: init_module: Device or
> resource busy
> dhcpcd[558]: ioctl SIOCGIFHWADDR (ifConfig): No such device
>
It sounds like the card got pushed into PnP mode. If you boot with a
DOS diskette, run the 3com utility and manually set the configurations
(IRQ, address, etc) it should start working.
------------------------------
Date: Fri, 21 May 1999 01:02:43 +0200
From: Alba <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: Redhat 6.0 pump/dhcp woes...
I'm using RedHat 6.0 and a cable modem without problems.
I don't use pump. I have dhcpcd in use. My two directives in the start
boot file are:
ifconfig eth0 up
dhcpcd
This was enough to get connected. Just try it.
Good luck!
Alberto
[EMAIL PROTECTED] escribi�:
>
> In article <7hrukk$[EMAIL PROTECTED]>,
> "Jeff Volckaert" <[EMAIL PROTECTED]> wrote:
> > Hello Everybody,
> >
> > Last weekend I downloaded the pump update and tried to get my cable
> modem
> > working. No such luck. I tried the "ln -s /sbin/dhcpcd /sbin/pump"
> trick,
> > still nothing. I did the edit ifup file as well, no luck.
> >
> > The odd thing is that I can't get my Redhat 5.2 DHCP sever to work
> with my
> > 6.0 box when I switch to dhcpcd either. I just get the red failed.
> >
> > I emailed my cable modem provider (Bresnanlink) and they said they use
> the
> > Cisco CDM package. You would think that Cisco would be right up to
> spec on
> > this stuff.
> >
> > Any help?
> >
> > TIA,
> > Jeff Volckaert
> >
>
> I bought the official Red Hat distribution of 6 and have had the same
> problems.
>
> The new pump just locks out my ethernet card. After waiting a week for
> RH tech support to respond (still waiting!) I solved the problem myself
> by switching to Caldera OpenLinux 2.2. Pulled my DHCP info first time
> flawlessly.
>
> Timo
> >
>
> --== Sent via Deja.com http://www.deja.com/ ==--
> ---Share what you know. Learn what you don't.---
------------------------------
Reply-To: "Curt" <[EMAIL PROTECTED]>
From: "Curt" <[EMAIL PROTECTED]>
Subject: Re: trafic loging
Date: Fri, 14 May 1999 06:33:25 -0500
mrtg http://ee-staff.ethz.ch/~oetiker/webtools/mrtg/mrtg.html
Also in RPM form on RH distribution.
ntop http://www-serra.unipi.it/~ntop/
Xavier Garcia <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Hi there :)
>
> I' ve just a little question : I have a gateway ( IP masquerading) and I
> would like to know the traffic (how many bytes pass throug my server
> down/up load). Is there a tool for that ?
>
> Thanx a lot in advance
>
> xg
>
>
------------------------------
From: [EMAIL PROTECTED] (Bob Fitzgerald)
Subject: Squid Fatal Error
Date: Thu, 20 May 1999 04:54:10 GMT
Hello,
I'm trying to install Squid (Stable 2.2) and when the program
starts, it fails with the following error:
FATAL: none: (2) No such file or directory
I've checked the squid.conf file for possibly bad paths but
without some general idea of where to look, I haven't made much
progress. There are subdirectories under /var/spool/squid/ from
an earlier installation.
Suggestions appreciated!
Thanks,
Bob
------------------------------
From: G.R. Svenddal <[EMAIL PROTECTED]>
Subject: PPP Slow ? A possible solution... worked for me.
Date: 20 May 1999 23:31:01 GMT
If you have a plug and play modem and use Windows on another partition,
it's possible your modem uses a different interrupt line. One way to check;
with PPP connected, open the kppp statistics window. If the packets arrive
when your mouse moves, then your mouse is activating your modem interrupt
handler !
In Windows, check out the port section in the device section of "My
Computor" properties. ( "My Computor".... how childish. What an insult !)
In the resources associated with the comm port that your modem uses is an
IRQ setting. If it is different then the usual ( IRQ 3 for Com 2 & 4 , IRQ
4 for com 1 & 3 , mine was com 3 => IRQ 5 ! ) then you will need to use
setserial as root to set your serial port IRQ to that value in Linux. A
script ( rc.script ) can be used to set it that way each boot, if you don't
wanna recompile your kernal...
I think this is because Plug and Play unlinked the traditional association
between COM port and its IRQ and COM port
================== Posted via SearchLinux ==================
http://www.searchlinux.com
------------------------------
From: "emenso" <[EMAIL PROTECTED]>
Subject: Re: Problem telnetting to a machine
Date: Wed, 19 May 1999 12:13:55 -0500
Try a hostname/dns entry for the machine that fails, so that it is known to
the target machine.
Amit Margalit wrote in message <[EMAIL PROTECTED]>...
>Hello!
>
>I am having a problem with a machine that won't let me
>telnet into it.
>
>When I try I get this:
>
>$ telnet 10.0.0.2
>Trying 10.0.0.2...
>Connected to 10.0.0.2.
>Escape character is '^]'.
>Connection closed by foreign host.
>$
>
>And that's it. The interfaces are set up properly, the
>IPs are indeed 10.0.0.1 and 10.0.0.2 over a plip line.
>
>Pings work, and from the machine's console I am able to
>telnet to its peer. I have even set up the peer as a
>router for it, and doing masquerading for it. The
>problem machine can telnet over the internet without
>problem.
>
>I am also able to open X apps from the problem machine
>to its peer, without trouble.
>
>Any ideas?
>
>I'd appreciate direct emails and promise to post the
>solution when found.
>
>Thanks,
>
> Amit Margalit
------------------------------
From: [EMAIL PROTECTED] (Jim Roberts)
Subject: Re: Tulip.c Linux and Win98
Date: Wed, 19 May 1999 17:27:42 GMT
In article <[EMAIL PROTECTED]>,
Matthew Sabo <[EMAIL PROTECTED]> writes:
> I've set up a little network with two link-sys cards, but I've
> been experiencing packet loses when Win98 and Linux communicate
> together.
> Causing telnet sessions and the like to stop responding.
> I brought my Linux machine up in win95 and the two machine work together
> fine. I've downloaded the latest version of tulip.c and installed it.
> I was wondering if there are any driver variables that might be set
> on my Linux box to allow better communication with Win98 through the
> tulip.c
> driver. I was playing with ping -s, and testing different packet sizes
> and
> managed to get to about 4% error, which was better then the previous
> 18%.
>
>
>
> Matthew
It would appear that your problem is in WIN98, not the tulip driver
for linux.
My guess is that WIN98 is setting the NIC for full duplex opperation.
Check the properties for the card in device manager and select 10base
T.
--
Jim Roberts
[EMAIL PROTECTED] Never enough time!
------------------------------
Reply-To: "Curt" <[EMAIL PROTECTED]>
From: "Curt" <[EMAIL PROTECTED]>
Subject: Re: routing problems with Redhat 5.2
Date: Thu, 20 May 1999 18:30:09 -0500
The comment about rc.local was just a GENERAL comment. Under RH5.2, the
network configuration is usually handled by files in
/etc/sysconfig/network-scripts . Most of these scripts are data driven from
files written by netcfg.
At startup /etc/rc.d/init.d/network runs and inturn executes many of the
scripts in /etc/sysconfig/network-scripts .
John Taylor <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
>
> In article <XF_03.60$[EMAIL PROTECTED]>, [EMAIL PROTECTED]
> says...
> > In general if you want things to rerun everytime you reboot, add them to
> > /etc/rc.d/rc.local
> >
> >
> > Although, if you have been able to get Xwindows going, run the network
> > configurator.
> > netcfg
>
>
> Thanks for the quick reply Curt. I did fire up netcfg and *thought* that
> I had added the static route correctly. Obviously, I didn't do it right.
>
> I checked the rc.local file on my system and didn't find any other
> network configuration options, so they must be stored somewhere else in
> RH 5.2. The search continues....
>
>
> John
>
------------------------------
From: "Ian" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: sendmail
Date: Fri, 21 May 1999 11:33:26 +1200
You need a pop3 server (in the imap package), and to add the approptiate
entry to your /etc/inetd.conf. That's all there is to it.
I think there is a commented out entry in /etc/inetd.conf which will do the
job unless you use a different pop3 server.
I use ids-ipop3d, which works well, though the ipop3d from the imap package
also seems ok.
Ian
Nick wrote in message <[EMAIL PROTECTED]>...
>I have a linux box running RedHat 6.0. How do I set up Sendmail to
>become a POP3 server. I have heard about how it is supposed to work,
>but every time I try to connect, I get an error message. I am trying to
>connect with the Netscape Communicator mail service.
>
>--Nick
>
------------------------------
Date: Fri, 21 May 1999 00:26:48 +0100
From: Matt <[EMAIL PROTECTED]>
Subject: Samba_2.0 NT4_SP3 and Linux SuSE6.1
Crossposted-To:
comp.os.linux.misc,comp.os.ms-windows.nt.misc,comp.os.ms-windows.networking.tcp-ip,comp.protocols.smb
Hi,
I have just configured SuSE 6.1 with the updated
samba.rpm. The NT box can see Linux and can logon
to the Linux box using NT4 SP3 (using the active
descktop).
However when I attempt to copy a file to Linux
from NT I get a permissions error. I have
added full permissions to the user on NT.
even with the option of
security=share or security=user in the smb.conf
If I attempt to change the permissions on NT
just in case (to ckeck the permissions)
I get an active desktop explorer error exception.
The active desktop then reverts to the recovery
desktop.
I can copy files from Linux to the NT directory
but not the other way (NT to Linux).
Is there another problem in samba, or is there
another setting in the smb.conf that I have
missed ?
Many thanks
Matt
------------------------------
From: N. Santoro <[EMAIL PROTECTED]>
Subject: What is minimal machine to run as router/gateway/web-/mail-server?
Date: 20 May 1999 23:45:29 GMT
Hello, I am trying to set up a Linux machine on a pentium to use with a DSL line
as a router/gateway/web/mail server. I am trying to keep costs down. What would
you recommend as an adequate system? The web page will probably be pretty basic, no
dhtml,
or major auctions going on. BUt I do want to run a mail server off it, maybe even POP.
Can
I get by with a PI-200? Is a Pentium II 233 overkill? Is this possible to do in around
$350?
(2 NICs, 4 GB, 32 RAM, CDROM, no monitor [have one already])? Is Celeron the way to go?
Thanks for any info or suggestions.
------------------------------
Reply-To: "Curt" <[EMAIL PROTECTED]>
From: "Curt" <[EMAIL PROTECTED]>
Subject: Re: Wireless Bridge
Date: Thu, 20 May 1999 18:50:18 -0500
On the PC, if IP forwarding is on and the routes are defined it seems like
it should work.
is /proc/sys/net/ipv4/ip_forward 1 ?
what is the routing table?
netstat -nr
how are the interfaces defined?
ifconfig
Same for libereto except forwarding isn't needed.
Donald R. McGregor <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
>
> A student dumped the following problem on my desk:
>
> There's a libereto hand-held running linux with a WaveLAN wireless
> adaptor, and a linux box with another wireless adaptor and a
> standard ethernet card connected to the world.
>
> +----------+ +----+ +-------+
> |Libereto |-------------| PC |-------|Da Net |
> +----------+ +----+ +-------+
>
> The PC and the Libereto communicate via the wavelan card
> in each. The PC is dual-homed with both a wireless and
> standard PCMCIA ethernet card. All the machines have IP
> numbers on the same network, x.x.7.x.
>
> The Libereto and the PC can ping back and forth, but of
> course the Libereto can't get to anything beyond the
> wireless interface on the PC. The ARP lookups will fail,
> since those won't go across the PC, and stuff from the
> net won't get to the Libereto, for the same reason.
>
> It seems to me that what's needed is a bridge, so that
> the ethernet frames can get across the PC.
>
> Before I get too deeply into this, I'm wondering if anyone
> has done something like this before, and knows of any
> gotchas. (For example I'd like to keep IP numbers on the PC, so
> that it can still be used for useful things, and the
> how-to on linux bridging suggests keeping IPs off the interfaces.)
>
> --
> Don McGregor | "It's deja-vu and amnesia at the same time--
> [EMAIL PROTECTED] | I've forgotten this before."
------------------------------
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End of Linux-Networking Digest
******************************
