Linux-Networking Digest #123, Volume #10 Sat, 6 Feb 99 01:13:57 EST
Contents:
IP Masq /IP Forwarding (setsockopt error) (DKM)
Re: FTP .... H O W !!!! (Joerg Klaas)
ftp attempt = 421 Service not available (Mark)
Re: Help: One way Cable Modems ("Jim Orfanakos")
Re: lan and different ip adresses (Luca Filipozzi)
Re: linux error (Doug Nordwall)
Any Help for my network ! (ilyes)
Re: using redirect (Brian Bergstrand)
pppd 2.3.5 working under kernel 2.0.36, not 2.2.1 (Joe Pfeiffer)
Re: Sendmail bounces mail ... please help! (Andrzej Filip)
Stats on internet use (Thomas Beardshear)
Re: Linux DNS (Michael Jenner)
Re: Linux DHCP vs NT (Stephen Carville)
printing large number of jobs (Mate Wierdl)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (DKM)
Subject: IP Masq /IP Forwarding (setsockopt error)
Reply-To: [EMAIL PROTECTED]
Date: Fri, 05 Feb 1999 05:32:33 GMT
Hi, have trouble with this. Keep getting "setsockopt" error message
when trying to use IPPORTW or IPMASQADM. I upgraded from 2.0.36 to
2.2.1 and couldn't even use IPFWADM (got setsockopt error messages).
I reverted back to 2.0.36 but still no luck. HELP!
------------------------------
From: Joerg Klaas <[EMAIL PROTECTED]>
Subject: Re: FTP .... H O W !!!!
Date: Fri, 05 Feb 1999 07:15:38 +0100
...look in "/etc/inetd.conf" and uncomment the line with "ftpd", and -HUP
the "inetd"...
Morten Andersen wrote:
> I need to disable my FTP server witch is build in Redhat 5.1....
>
> I'm trying to set up an FTP-forwarder..... it says that the address is
> allready used....
>
> Thanx.. .:o)
------------------------------
From: Mark <[EMAIL PROTECTED]>
Subject: ftp attempt = 421 Service not available
Date: Thu, 04 Feb 1999 23:23:13 -0700
I have installed wu-ftp, but am having problems with logging in. I can
telnet and ping fine. When I try to login as a regular user I get the
error "421 Service not available" after I enter my password. I have
tried logging in as all of my regular users and receive the same
results. I am running red-hat 5.2, kernel 2.0.36
Any help would be appreciated, thank you
Info from my system;
/etc/ inetd.conf for ftp reads:
ftp stream tcp nowait root /usr/sbin/tcpd in.ftpd
I removed the default "-l -a" so that nothing is logged and do not use
the ftpaccess file(I believe this is default, I have tried -A too)
/etc/ftpusers file does not have any regular users defined in it so
they should not be getting denied service
/etc/ftpgroups is empty
/etc/ftphosts is also empty (everything commented out)
------------------------------
From: "Jim Orfanakos" <[EMAIL PROTECTED]>
Subject: Re: Help: One way Cable Modems
Date: Fri, 5 Feb 1999 03:16:25 -0500
I hope so.
Pavel Greenfield wrote in message <[EMAIL PROTECTED]>...
>(Sorry if this is a second post).
>Thanks, Jim.
>
>But does linux in principle support a connection to the internet via a
>combination of ethernet and modem?
>
>Thanks again!
>
>Pavel
>
>Jim Orfanakos wrote:
>
>> I have a SurfBoard 1000 one way modem. My ISP has posted on their web
site
>> the drivers for Linux. I am in the process of trying to get it up and
>> running.
>>
>> http://powerlink.adelphia.net/
>>
>> Pavel Greenfield wrote in message <[EMAIL PROTECTED]>...
>> >Making a long story short:
>> >Are one-way cable modems supported by Linux?
>> >
>> >Thank you very much in advance!
>> >
>> >Pavel
>> >
>> >[EMAIL PROTECTED]
>> >
>
------------------------------
From: [EMAIL PROTECTED] (Luca Filipozzi)
Subject: Re: lan and different ip adresses
Date: Fri, 5 Feb 1999 12:15:43 -0800
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] says...
> I want to connect my lan to the Internet but how can I give every
> machine a different ip adress while my isp has given me only one?
>
> please help me!!!!!!
>
> cheers,
>
> chew, http://www.chew.demon.nl
>
>
Read the Masquerading HOWTO at www.linux.org under support. It'll tell
you how to hide your lan behind one linux box so that all the traffic
appears to come from the one ip address.
--
Luca Filipozzi <[EMAIL PROTECTED]>
------------------------------
From: Doug Nordwall <[EMAIL PROTECTED]>
Subject: Re: linux error
Date: Tue, 02 Feb 1999 18:53:23 -0700
Roberto wrote:
> Dear people,
> I have a little problem incontered trying install Red Hat Linux 5.2 on my HD
> Western Digital AC26400 6GB.
>
> After partition disk appear . . . Fdisk Error - an error occurred reading
> the partition table for the block device /tmp/hdd. The error was::
> inmput/output error.
>
> Then if I skip this step after file systemm creation when the system trying
> to install packages, appear . . . Error - mount failed: oparation not
> supported by device.
>
> Does anybody say me what can I do to complete installation of Linux on my
> computer ?
>
> Thaks everybody answer me !!!
>
> Roberto
I would double check and make sure you are not running WDC's disk manager
utility. Secondly, double check and scan the hdd for errors. Thirdly, see if you
have any trouble installing linux on another hard drive, or try installing
another operating system, to test the controller and hard drive. You might also
have to format the drive too..
--
Doug Nordwall "Who's the bigger fool?
New Mexico Highlands University The fool or the fool who follows him?"
[EMAIL PROTECTED] -Ben Kenobi
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------------------------------
From: ilyes <[EMAIL PROTECTED]>
Subject: Any Help for my network !
Date: Sat, 06 Feb 1999 00:29:30 -0500
Hi there :)
I have a small network at home ( 7 computers) , I'm running
Linux (RedHat 5.2 kernel = 2.0.36) as server with two network-adapter
one connecting to my cable modem and the other one to a hub .
the 6 other computers are running windoze and have also there
network-adapter. They are connected to a hub as well.
i'm using ip-masq ....everything is working fine i can get to the
internet from
any computer .....no problem , but i was wondering how can i contacte
any
of the 6 computers that's run windoze from outside
here is some information about my local IP
My Linux server IP (eth0 at dhcp, eth1 at 192.168.10.1)
windoze 1 at 192.168.10.2
windoze 2 at 192.168.10.3
;
;
;
windoze 6 at 192.168.10.7
Any help ? ..e-mail me : [EMAIL PROTECTED]
Thanks :)
------------------------------
From: [EMAIL PROTECTED] (Brian Bergstrand)
Subject: Re: using redirect
Date: Fri, 05 Feb 1999 14:16:22 -0600
In article <[EMAIL PROTECTED]>, Marc Plaggemeier <[EMAIL PROTECTED]> wrote:
>
Hello,
>
>
>
> perhaps someone could help
>
me.
>
>
>
> I want to setup an Application Level Firewall with transparent
>
proxies.
> So I installed two ethernet cards (eth0 and eth1) on my Linux System
> running Kernel
>
2.2.0.
> I configured the kernel to use transparent proxy Support and
>
Firewall.
>
>
>
> After that I used ipchains to redirect all the traffic comming from
>
the
> internel ethernetdevice to my firewall on a special TCP Port (example:
>
when
> using Port 23 it is redirected to port
>
9023).
>
>
>
> It only works, when enable ip_forwarding, but I do not want to enable
> it.
>
I
> will do the hole work via my Proxy
>
Application.
>
>
>
> My question
>
is:
>
>
>
> Is it right that (port) redirecting only works
>
when
> enable ip_forwarding? Or is something wrog with my
>
configuration.
> If it does not work, how can I implement such a transparent
>
firewall?
>
>
>
> (How can I use / setup the Linux Kernel to redirect the ip packet to an
> other Port
>
on
> my local
>
machine)
>
>
>
>
Greetings
> Marc
> Plaggemeier
ipchains requires ip_forwarding to be on in order for firewalling to
work, this is mentioned in the doc. If you want to make sure that
no one is forwarding through your host, just do the following as part of
your ipchains setup:
ipchains -P forward DENY
This will set the default rule for forwarding to DENY.
HTH,
Brian
--
Brian Bergstrand
http://www.classicalguitar.net/
------------------------------
From: Joe Pfeiffer <[EMAIL PROTECTED]>
Subject: pppd 2.3.5 working under kernel 2.0.36, not 2.2.1
Date: 05 Feb 1999 22:09:31 -0700
When pppd tries to negotiate with my ISP, it appears to think it is
getting different packets back depending on whether I'm running 2.0.36
or 2.2.1. Here are some relevant logs:
First, under 2.0.36 --
Feb 5 21:29:27 noodlenoggin pppd[225]: pppd 2.3.5 started by root,
uid 0
Feb 5 21:29:52 noodlenoggin pppd[225]: Serial connection established.
Feb 5 21:29:53 noodlenoggin pppd[225]: Using interface ppp0
Feb 5 21:29:53 noodlenoggin pppd[225]: Connect: ppp0 <--> /dev/modem
Feb 5 21:29:53 noodlenoggin pppd[225]: sent [LCP ConfReq id=0x1 <asyncmap 0xa0000>
<magic 0x8d847a8b> <pcomp> <accomp>]
Feb 5 21:29:53 noodlenoggin pppd[225]: rcvd [LCP ConfReq id=0x17 <asyncmap 0xa0000>
<magic 0x71961151> <pcomp> <accomp>]
Feb 5 21:29:53 noodlenoggin pppd[225]: sent [LCP ConfAck id=0x17 <asyncmap 0xa0000>
<magic 0x71961151> <pcomp> <accomp>]
Feb 5 21:29:53 noodlenoggin pppd[225]: rcvd [LCP ConfAck id=0x1 <asyncmap 0xa0000>
<magic 0x8d847a8b> <pcomp> <accomp>]
(it goes on to successfully negotiate a connection).
Now, under 2.2.1 --
Feb 5 21:32:36 noodlenoggin pppd[146]: pppd 2.3.5 started by root,
uid 0
Feb 5 21:33:01 noodlenoggin pppd[146]: Serial connection established.
Feb 5 21:33:02 noodlenoggin pppd[146]: Using interface ppp0
Feb 5 21:33:02 noodlenoggin pppd[146]: Connect: ppp0 <--> /dev/modem
Feb 5 21:33:02 noodlenoggin pppd[146]: sent [LCP ConfReq id=0x1 <asyncmap 0xa0000>
<magic 0x99eb716e> <pcomp> <accomp>]
Feb 5 21:33:04 noodlenoggin pppd[146]: rcvd [LCP ConfReq id=0xdc <asyncmap 0xa0000>
<magic 0xa2caebdf> <pcomp> <accomp>]
Feb 5 21:33:04 noodlenoggin pppd[146]: sent [LCP ConfAck id=0xdc <asyncmap 0xa0000>
<magic 0xa2caebdf> <pcomp> <accomp>]
Feb 5 21:33:05 noodlenoggin pppd[146]: sent [LCP ConfReq id=0x1 <asyncmap 0xa0000>
<magic 0x99eb716e> <pcomp> <accomp>]
Feb 5 21:33:06 noodlenoggin pppd[146]: rcvd [LCP ConfReq id=0xdd <asyncmap 0xa0000>
<magic 0xa2caebdf> <pcomp> <accomp>]
Feb 5 21:33:06 noodlenoggin pppd[146]: sent [LCP ConfAck id=0xdd <asyncmap 0xa0000>
<magic 0xa2caebdf> <pcomp> <accomp>]
and it keeps this up until my ISP hangs up on it.
What I don't understand is that ppp seems to think the id on a packet
arriving *from* the ISP is different, depending on *my* kernel
version! Same scripts; ppp was compiled using the 2.2.1 headers.
--
Joseph J. Pfeiffer, Jr., Ph.D. Phone -- (505) 646-1605
Department of Computer Science FAX -- (505) 646-1002
New Mexico State University http://www.cs.nmsu.edu/~pfeiffer
------------------------------
From: Andrzej Filip <[EMAIL PROTECTED]>
Crossposted-To: comp.mail.sendmail
Subject: Re: Sendmail bounces mail ... please help!
Date: Fri, 05 Feb 1999 20:20:11 +0100
"John N. Alegre" wrote:
> Oh knowledgeable sendmail gurus, I need some help!
>
> First the problem. All mail is received and sent properly via UUCP,
> however all incomming mail gets put right back into the uucp queue to be
> sent back out rather than delivered to the local user. It is as if the
> mail system is confused as to its idenity.
[...]
> Cwlocalhost
>
> # my official domain name
> # ... define this only if sendmail cannot automatically determine your
> domain
> #Dj$w.andante.mn.org #<<---I have also tried leaving out the domain
Run the following command to find out which domains trigger
local delivery:
#sendmail -bt
>$=w
It seems that you have forgotten to add the following line
Cwandante.mn.org
To make andante.mn.org (and other?) a local domino.
Sendmail treats andante.mn.org as non local domain and
forwards its to smart host (back again)
--
Andrzej (Andrew) A. Filip
home e-mail: [EMAIL PROTECTED]
------------------------------
From: Thomas Beardshear <[EMAIL PROTECTED]>
Subject: Stats on internet use
Date: Fri, 05 Feb 1999 20:47:37 GMT
Anyone know how to see how much traffic is being used by individuals
going through a firewall? Someone suggested ipfwadm, but when I see the
stats, I can only see a single count of packets - no users are
specified, but I probably used the wrong policy. Anyone know what kind
of arguments to use to setup the policy and query it later? I've been
through the man pages and they have zero examples.
--
Shurflo does not accept responsibility for any views expressed or
implied
in the text or graphics of this user. I don't either.
Thomas
------------------------------
From: Michael Jenner <[EMAIL PROTECTED]>
Subject: Re: Linux DNS
Date: Fri, 05 Feb 1999 20:48:03 GMT
Chris Richards wrote:
> >Don't put the intranet's nameservers in your resolv.conf. Put them into
> >your named.conf as forwarders. That way, machines on your local net will
> >ask your DNS for an address and your DNS will ask the intranet DNS's.
>
> Thanks.
>
> The correct answer was to add the following to my options { }; block in
> named.conf:
>
> forward first;
> forwarders {
> ip1;
> ip2;
> };
>
> That initially did not work. I had to repopulate my root.hints file (it was
> previously empty). Apparently it uses this in conjunction with the forwarders
> to complete the DNS request. I'll find out for sure later.
I have recently stumbled over exactly the same problem. I changed the option
section to:
forward only;
forwarders { etc ... };
and had to remove the root zone to make it work.
Here's what I guess is happening (please correct me if I'm wrong - I'm trying to
learn dns): First bind tries to resolve names in local zones (master or slave),
if negative it consults the root zone and if the root zone servers (masters of
the Internet :o) can't answer bind gives up. Only if there is no root zone it
consults the specified forwarders. My isp firewalls out direct access to root
servers - perhaps your isp doesn't - in other words your configuration probably
makes bind consult the root servers directly, thus bypassing the forwarders
completely ?
Regards,
Michael
------------------------------
From: Stephen Carville <[EMAIL PROTECTED]>
Subject: Re: Linux DHCP vs NT
Date: 6 Feb 1999 05:51:13 GMT
Sean MacLennan wrote:
>
> I am trying to connect to an NT DHCP server using Linux. The NT server
> is supposed to give us a pseudo-static IP address based on our
> ethernet address. This IP address is hardcoded is then hardcoded in
> the DNS map.
>
> This works for a while, but NT sometimes gives a new IP address and
> screws things up.
>
> The NT admin staff seems to think that we are not responding to the
> lease messages correctly. Any hints, tips, gottchas?
Your NT staff is full of shit. Lease renewal is a client side
responsibility and, if you got the original address, then you will get a
renewal when you ask for it IF THE SERVER IS WORKING CORRECTLY. Sorry to
shout but dem's da facts.
The renewal is process simple, After the lease is half way expired the
client sends a DHCPREQUEST for the original configuration to the server.
The server is supposed to respond with a DHCPACK and renew the lease. If
for some reason the lease cannot be renewed, the sever will send a DHCPNAK
and the client must start the process all over at DHCPDISCOVER.
The dhcpcd 0.70 client has some bugs, but not renewing a lease correctly is
not one of them.
--
Stephen Carville
[EMAIL PROTECTED]
====================================================
Management: The art of hiring intelligent, skilled individuals and then
ignoring their advice.
------------------------------
From: Mate Wierdl <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.hardware
Subject: printing large number of jobs
Date: 04 Feb 1999 17:15:30 -0600
Reply-To: [EMAIL PROTECTED]
I have RH 5.2, and I have HP LJ 5M connected to my box via a parallel
cable. I experience the following problem
I send a large number (say, 30) of small jobs to the printer. I see
the jobs piling up in the queue. The printer starts printing, but it
stops after twenty or so, says "Processing job", but does not happen
anything---even after a day. The last ten jobs disappear from the
queue.
A typical (though useless) example would be this:
Create the script. prtest.sh
#!/bin/sh
i=1
while [ $i -le 30 ]; do
dvips $1
i=$[ i + 1 ]
done
create and latex a simple latex file prtest.tex
\documentclass{article}
\begin{document}
Hello, printer
\end{document}
and run
./prtest prtest
(The actual situation does make sense, but the above example shows the
problem).
My other printer, an Okidata 810eps did not show he problem---after it
was warmed up. But if I sent the jobs after the printer was idle for
say one hour---it started printing garbage.
I also tried to use the HP 5M as a network printer, but after printing
5 of the jobs, it started printing garbage.
I called HP, and of course they told me the problem is with Linux, and
they have to make a driver.
Here is my /etc/printcap (created by RH's printtool)
##PRINTTOOL3## LOCAL POSTSCRIPT 600x600 letter {} PostScript Default 1
lp0|lp|PostScript|wd|ps|HP-in-207:\
:sd=/var/spool/lpd/lp0:\
:mx#0:\
:sh:\
:lp=/dev/lp1:\
:af=/var/adm/lp0-acct:\
:if=/var/spool/lpd/lp0/filter:
Thanks for any help
--
---
Mate Wierdl | Dept. of Math. Sciences | University of Memphis
------------------------------
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End of Linux-Networking Digest
******************************
