Linux-Networking Digest #950, Volume #11 Tue, 20 Jul 99 11:13:44 EDT
Contents:
Re: ARP requesting on IP address ("Holger van Koll")
Re: Firewall forwarding NetBios? ("Holger van Koll")
Re: Large files choke Samba Print queue ("steve epstein")
Pop server very slow ("Zoltan Pittner")
linux + route (Kostis Mentzelos)
Re: Help! Alcatel ADSL modem locks up? (Bryan)
Re: Windows laptop connected to Linux->without networkcard (Lew Pitcher)
Re: Linux as a server (John Schmerold)
Re: Samba losing connection to NT server (Thomann KH)
Re: Weird ppp problem...fixed... (Vishnu Swaminathan)
Sending emails over a network (VBF-Ratingen GmbH)
DHCP & Mediaone's cable modem. ("Doug O'Leary")
PPP connection doesn't work (nelson cheung)
----------------------------------------------------------------------------
From: "Holger van Koll" <[EMAIL PROTECTED]>
Subject: Re: ARP requesting on IP address
Date: Tue, 20 Jul 1999 13:43:20 +0200
Doyen Klein schrieb in Nachricht <[EMAIL PROTECTED]>...
>I posted this to redhat, but no one there has any clue? Can anyone point
>me towards a howto or faq that mentions this error ARP: arp is
>requesting on ip address
>
Are you sure this is an error?
Is the requested IP-Adress on the net (collision domain)?
What does tcpdump exactly tell you?
>Is this because I have not setup reverse DNS?, or setup DNS incorrectly?
I dont think.
------------------------------
From: "Holger van Koll" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.security
Subject: Re: Firewall forwarding NetBios?
Date: Tue, 20 Jul 1999 13:46:12 +0200
Johannes Hettig schrieb in Nachricht <[EMAIL PROTECTED]>...
>Hi all,
>
>I�ve got a Problem with my Linux-Firewall. I am in a large Domain with
>my NT-maschine behind a Linux Firwall.
>
>NT-Comp----------------Linux-Firewall--------------Domain------------gatewa
y
>
>129.168.12.78 abc.cdf.bla.251
>abc.cdf.bla.xxx abc.cdf.bla.254
>
>The firewall works with ipfwadm and masquerading. I want to access the
>other computers of the domain via SMB, but this does not work. I
>noticed that my NT-workstation sends the UDP packets concerning NetBIOS
>(Port 137-119) to the Broadcast address of its net. But they are not
>masqueraded and routed
What would happen if all routers would route all broadcasts??? Br.c. must
noch be routed.
I am not sure, but i think you need a WINS server.
Did you try file://ip-of-the-computer/ ? Do you get a listing?
------------------------------
From: "steve epstein" <[EMAIL PROTECTED]>
Subject: Re: Large files choke Samba Print queue
Date: Tue, 20 Jul 1999 06:57:13 -0500
Here is the printcap and the line you mention is in there
Steve
Allen Wong <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Steve,
>
> I think the problem may be in your printcap file. Do you have this
> line?
>
> :mx#0:
>
> This sets the maximum size of the file you want to print. The above
> line defines an unlimited file size. Please post your printcap file.
>
> Allen
> --
> Linux: If you're not careful, you might actually learn something.
begin 666 printcap.dat
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E7 H).FEF/2]V87(O<W!O;VPO;'!D+U1E:S<T,"]F:6QT97(Z"@``
`
end
------------------------------
From: "Zoltan Pittner" <[EMAIL PROTECTED]>
Subject: Pop server very slow
Date: Tue, 20 Jul 1999 08:05:58 -0400
Hi.
I'm trying to use the Red Hat 6 as internet gateway in a corporate
environment. I don't have internet connection just yet, but the server is
set up, ready to go. In the server I have two network cards (100Mbs) one
is connected to the internal network, the other one will be connected to
the ADSL (2.5Mbs) router (perhaps tomorrow). The computers on the
network are configured (through an NT DHCP server) to have the default
gateway pointing to the internal network card in the Linux machine.
Whenever I try to telnet from a workstation to the Linux I have to wait
3-5 minutes while it is connecting properly. Same with the FTP and POP3
servers.
the Linux originally was set up to use as default gateway it's own
(internal) IP, but I took that out, hoping that the whole thing will
speed up a little bit.
Any idea what's going on?
thanks, Zoltan
------------------------------
From: Kostis Mentzelos <[EMAIL PROTECTED]>
Subject: linux + route
Date: Tue, 20 Jul 1999 16:06:34 +0300
Hi everybody,
what do I need to set up my linux box as a router?
I have a linux box with two ethernet cards, and two local networks.
Kostis Mentzelos
------------------------------
From: Bryan <Bryan@[EMAIL PROTECTED]>
Subject: Re: Help! Alcatel ADSL modem locks up?
Crossposted-To: comp.dcom.xdsl
Date: Tue, 20 Jul 1999 13:23:37 GMT
Vipin Malik <[EMAIL PROTECTED]> wrote:
: I have ADSL at home with SWBell, and they have provided me with an Alcatel
: 1000 ADSL external modem.
my condolences ;-(
: I'm running it, connected to a 10base-T ethernet card in a 486 Linux 2.2.5
: computer, which serves as an IP masquerading server for my home LAN.
: There is another ethernet card that is connected to a hub on which all my
: other computers reside.
: The computers on my side has 172.16.17.x addresses and the card connected to
: the ADSL modem gets it's IP address via DHCP.
: Most of the time stuff works fine :), However (ther's always a however :( )
: Now the problem that I am having is this: Every so often, I cannot get
: packets out to the internet, even though DHCP has not timed out and my ISP
: connection light is still green.
it does hang every so often. its known as the 'CRASHcatel effect'.
most of us have seen it. alcatel should be taken out and shot for
producing such a shitty product.
: details: ifconfig still shows both network cards working ok, with the
: card connected to the ADSL modem still having the IP address.
: However I cannot even ping to the router on the otherside of the ADSL modem.
: All lights are green and I can see the ADSL TX/RX light
: flash as I try to ping outside.
: This problem is pretty sporadic, and usually occures only when I have
: packets going through (i.e. never found the system in said state even after
: prolonged idle times (>1 day), and also happened to me thrice in 1 hour ).
: The only solution (i have found) is to power cycle the modem and request
: another DHCP IP address (ifdown eth1, then ifup eth1). Incindently just
: requesting another IP address via DHCP does not help without the modem power
: cycle.
: Any ideas?
of course. run a ping/control loop like I do. see my netmgt web page
for a demo. while my crashcatel still hangs, I have a 'bot that
notices when things have gone to hell and executes a
(shutdown..wait..test) procedure. it uses the remote X10 controller
(power line remote control) to powercycle the damned thing, wait a
minute, power it up again, wait 45secs (to come alive again) and start
polling all over again. and it logs events graphically so I can keep
pachell honest.
just today I noticed a major hang in the pacbell cloud - but my
default router behind the dslam was fine so for once, the
crashcatel1000 wasn't at fault. HOWEVER, we just had business-dsl
installed (on friday) and while it worked quite well yesterday, today
at 4am or so, it went to hell. I called in to pachell and showed them
my graphs and said 'fix it dammit'. without data there's no way to
keep a carrier honest. this is the ultimate defense in the SLA war, I
think ;-)
anyway, see my website for info. the code isn't the prettiest but
I'll release it to anyone who wants it. you need to run linux (or
some unix variant) and you'll need some kind of remote power
controller/relay device. its a GOOD idea to get in on that X10 promo
they're running right now. I paid $50 for my remote box, but now
they're giving it away for $6 or so!!
http://snmptools.org/ping.html
enjoy (if that's possible) ;-)
--
Bryan, http://www.Grateful.Net - Linux/Web-based Network Management
->->-> to email me, you must hunt the WUMPUS and kill it.
------------------------------
From: [EMAIL PROTECTED] (Lew Pitcher)
Subject: Re: Windows laptop connected to Linux->without networkcard
Reply-To: [EMAIL PROTECTED]
Date: Tue, 20 Jul 1999 12:49:24 GMT
On Tue, 20 Jul 1999 01:28:03 +0300, Pasi <[EMAIL PROTECTED]> wrote:
>I have a serial cabel that connects my windows(for Workgrups)laptop to
>Linux
>machine. I have PLIP in use and Interlink attached to Win Config.sys.
====
PLIP (Parallel Line Internet Protocol) works with parallel (printer)
ports. At worst, you've either used the wrong cable or the wrong port),
while at best, either the serial cable or PLIP is not relevant.
>What do I have to do to get this "network" to work???
Serial-to-serial:
- read the Serial-HOWTO and the PPP-HOWTO
- cable your windows machine serial port to
your linux machine serial port using a "null-modem"
serial cable
- configure a linux ppp 'server' to talk to the
serial port in ppp
- configure your windows Winsock dialer to talk to
the serial port, and to pass the Linux login info
- go to it
Parallel-to-parallel:
- compile the PLIP support into your Linux kernel
- cable your windows machine parallel port to
your linux machine parallel port
- configure your linux ppp 'server' to talk to the
plip device
- get and install the Crynwr PLIP packet driver for
your Windows machine
- ? write a howto ?
>
>T:Pasi
Lew Pitcher
System Consultant, Integration Solutions Architecture
Toronto Dominion Bank
([EMAIL PROTECTED])
(Opinions expressed are my own, not my employer's.)
------------------------------
From: John Schmerold <[EMAIL PROTECTED]>
Subject: Re: Linux as a server
Date: Tue, 20 Jul 1999 09:07:50 -0500
One of the things you are looking for is a NWADMN32.EXE program for LINUX. As
best I can tell this does not exist yet. But, it seems like LDAP will be
solution. It appears we can use this technology to store user names, passwords,
rights to directories, volumes etc, email information, roaming profiles etc
I wish I had the brains & time to implement this concept.
Gerry Kerr wrote:
> Hi all
>
> I have been watching Linux grow in features, depth, ease of installation for
> the last couple of years. I use linux at home (more to be familiar with the
> os than in anger). We are now looking at Linux as a "File" server OS for
> small business. I alway thought that there were a number of key areas that
> needed to be address before Linux became a viable option.
>
> The key areas as I see them are:
>
> 1. Ability to map network drives/printers onto the client PCs
> 2. Mail / Fax and web access solution
> 3. Automated Backup solutions
> 4. A network client for the workstations.
>
> Typically our small businesses customers do not care what is running on the
> server as long as it works. Most of them never thoch the damn thing - they
> rely on us to be their system administrators.
>
> Of the 4 key areas above the only piece missing is no 4 (at least I am not
> aware of one).
>
> Ideally the client should be capable of running scripts to automate drive
> mapping, home directories, printer access etc.
>
> I would be interested to know other peoples views on Linux in this capacity
> and anny info or suggestions on client software
>
> Regards.......Gerry
--
John Schmerold
Katy Computer, LLC
20 Meramec Station Rd
Valley Park, MO 63088
314-316-9000
314-316-9200 fax
------------------------------
From: Thomann KH <[EMAIL PROTECTED]>
Crossposted-To: comp.protocols.smb
Subject: Re: Samba losing connection to NT server
Date: Tue, 20 Jul 1999 15:33:26 +0200
I tried this, but connection got lost again.
Ayway, ist seems to last longer.
Adam Haeder wrote:
> I ran into the same problem. My fix was to add the line 'df -k' to my
> crontab and have it run every 15 minutes. This forces samba to refresh
> the connection, and it keeps it alive. A kludge, I know, but I've kept
> connections up for weeks with this.
>
> >>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<<
>
> On 7/19/99, 8:59:51 AM, Thomann KH <[EMAIL PROTECTED]> wrote regarding
> Samba losing connection to NT server:
>
> > I've got a strange behaviour when acessing our NT server using samba
> > 2.0.3 :
> > First, I mount 2 paths of the NT server under /server and /fax under
> > Suse Linux 6.1,
> > an everything works great.
> > Some time later, the /server directory appears empty and the mounted
> > path on the server
> > disappears.
>
> <--snip-->
>
> > I can get it to work again with
> > /sbin/init.d/smb restart
> > for some time, but this worked with samba 1.9 without any problems.
--
=====================================
I Karl-Heinz Thomann I
I Feingeraetebau Tritschler GmbH I
I Schoenaustrasse 10-12 I
I D - 79725 Laufenburg I
I T: 07763 9388 0 I
I F: 07763 9388 49 I
=====================================
------------------------------
From: Vishnu Swaminathan <[EMAIL PROTECTED]>
Subject: Re: Weird ppp problem...fixed...
Date: Tue, 20 Jul 1999 09:45:51 -0400
Yesterday, there was a post (from Morris(?) Maynard) saying that disabling
Van Jacobsen compression might do the trick, and it did!! Thanks a TON!! I
edited my /etc/sysconfig/network-scripts/ifcfg-ppp0 and included novj in
ppp-opts, and things worked beautifully from there.
I've noticed the neighbor table overflow message a few times myself, and
it appears to me that this message crops up when one has both eth0 and the
ppp0 enabled. It stops showing up after I do a ifconfig eth0 down.
-v
On Tue, 20 Jul 1999, Ken R. wrote:
> Date: Tue, 20 Jul 1999 01:49:10 GMT
> From: Ken R. <[EMAIL PROTECTED]>
> Newsgroups: comp.os.linux.networking
> Subject: Re: Weird ppp problem...
>
> I get the same problem, I have had it happen on a Novell LAN and a small
> Linux LAN I set up at home. If you log in as root and type " tail -f
> /var/log/messages" it may help. I did this and found a "nieghbour
> overflow table" error. Although I don't have an answer to this error, I
> have posted the question of this error and not recieved a response. I
> noticed numerous posts with the same error and also with no responses.
> If you figure this out, let me know, sorry I could not be of more help.
>
>
> Sent via Deja.com http://www.deja.com/
> Share what you know. Learn what you don't.
>
>
------------------------------
From: VBF-Ratingen GmbH <[EMAIL PROTECTED]>
Subject: Sending emails over a network
Date: Tue, 20 Jul 1999 15:28:55 +0200
Hi!!
I've got a network (TCP/IP) with one Linux-Server (Samba) and a few
Windows-Clients. As I have an ISDN-card in the Linux-Server, I want to
use it from the Windows-CLients. That means, I want to be able to send
an email from a Windows-Client over the ISDN-card in the Linux-Server.
Basically, I think it can't be a too big problem: the mail is sent over
the network to the server, and it transmits it... But, I have now idea
how to get that working :-)
Thanks for any help!!
Rainer.
PS: How I access the Internet form the Linux-PC??? I have a fixed
IP-adress (192.168.1.1)!!
------------------------------
From: "Doug O'Leary" <[EMAIL PROTECTED]>
Subject: DHCP & Mediaone's cable modem.
Date: Tue, 20 Jul 1999 08:58:00 -0500
Hi;
I just loaded RedHat 6.0 and tried out my new cable modem with the same
results as the previous versions of Linux. The dhcp client is 1.3 (which,
according to the documentaiton is supposed to fix some these problems). I
keep getting a time out waiting for valid DHCP reply message in my logs.
Mediaone doesn't provide any help for this; they say they only support MS
viruses - operating systems.
Does anyone have a cable modem working with MediaOne? Any tips on what I
might try now?
Thanks for any help.
Doug O'Leary
[EMAIL PROTECTED]
[EMAIL PROTECTED]
------------------------------
From: nelson cheung <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: PPP connection doesn't work
Date: Tue, 20 Jul 1999 22:31:01 +0800
Reply-To: [EMAIL PROTECTED]
Hi,
I used to connect my RH6.0 Linux box to my company (they are using NT
RAS) in order to access internet. After my company upgraded their RAS
and is using MSCHAP V2, I can no longer connect using this way. I
decided to setup another Linux Box in my office's desk and connect a
modem to it so it can act as my own PPP server.
After I set it up, I use a Win95 as client and dial up to the PPP
server. Everything looks good. I can telnet to the server; access the
intranet and internet just as if I am in the office. It is perfect, I
could say. However, I could not connect to any machine using RH6 linux
as a PPP client after I went home:
- I use kppp to dial to the server
- Modem connection is made (timer is start)
- If I ping the server, server doesn't respond (I can see the "TD" led
on modem blink so I assume the default route is set up correctly. There
is none activity on "RD" led so I believe the server just doesn't
respond to the ping request)
- ping to other hosts inside intranet failed just as ping the server.
I don't understand why the server doesn't respond to my ping requests
(and telnet requests etc.) The physical connection (modem) seems good
and routing are correct (at least request are sending through the
modem).
Here are some information I captured from PPP client after connection is
made:
[root@yamato /root]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
16.157.0.10 0.0.0.0 255.255.255.255 UH 0 0 0
ppp0
192.168.0.10 0.0.0.0 255.255.255.255 UH 0 0 0
eth0
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0
eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0
lo
0.0.0.0 16.157.0.10 0.0.0.0 UG 0 0 0
ppp0 <-- default gateway
[root@yamato /root]# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:60:97:72:A8:E1
inet addr:192.168.0.10 Bcast:192.168.0.255
Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:154 errors:0 dropped:0 overruns:0 frame:0
TX packets:23 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
Interrupt:10 Base address:0xe000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:48 errors:0 dropped:0 overruns:0 frame:0
TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
ppp0 Link encap:Point-to-Point Protocol
inet addr:16.157.0.131 P-t-P:16.157.0.225
Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:296 Metric:1
RX packets:8 errors:3 dropped:0 overruns:0 frame:3
TX packets:13 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
IP (16.57.0.131) is got from server (16.157.0.225).
The .ppprc of the PPP account in PPP server is:
[root@hgcs55 pppuser]# more .ppprc
-detach
modem
crtscts
lock
16.157.0.225:16.157.0.131
proxyarp
Finally I setup another PPP server using Tru64 UNIX but the symptom is
exactly the same.
I then use pppd instead of kppp but the result is the same!
Summary:
Server Client OK?
===== ===== =====
Linux Win95 Y
Linux kppp N
Linux pppd N
Tru64 Win95 Y
Tru64 kppp N
Tru64 pppd N
Can anybody help?
I will appreicate if you can send a copy of your reply to
[EMAIL PROTECTED]
thank in advance
-Nelson
------------------------------
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End of Linux-Networking Digest
******************************
