Linux-Networking Digest #822, Volume #11 Thu, 8 Jul 99 10:13:37 EDT
Contents:
firewall questions (Martin Ng)
Re: subnetmask (function) / Funktion der Subnetmask ("R. L.")
Re: Need help with static routes (Sami Yousif)
RedHat 6 + DHCP ISP = RPC Errors ("Nomego")
Re: subnetmask (function) / Funktion der Subnetmask (Thomas Kuiper)
Re: subnetmask (function) / Funktion der Subnetmask (Thomas Kuiper)
Want to share my cable internet connection ("Sebastien Breault")
pop-mail in redhat 6.0 and remote popping? ("Mendel")
Re: DDNS Server for Linux ("Phil Green")
PPP Configuration Guide/Docs? (Kevin Turnquist)
Re: ppp broke on upgrade to 2.2.9 (Chris Mahmood)
pppd server - no gettys need apply (Leo Cyr)
Re: Could Microsoft Cheat On The New Mindcraft Benchmark?
([EMAIL PROTECTED])
Re: Could Microsoft Cheat On The New Mindcraft Benchmark? (John Imrie)
----------------------------------------------------------------------------
From: Martin Ng <[EMAIL PROTECTED]>
Subject: firewall questions
Date: Thu, 08 Jul 1999 19:57:18 +0800
==============691D8C4F5A23E89F9F4C288B
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Hi all,
I have question about using IPCHAINS. Following is our network.
External Network
|
|
eth0 |
===================
| 204.146.18.33 |
| | Redhat6.0 w/
| Firewall | linux Kernel 2.2.5-15
| |
| 192.168.1.1 |
===================
| eth1
|
|
Internal Network---------------------------------
| | |
| | |
------ ------ ------
| SMTP | | Web | | PC 1 |
|Server| |Server| | |
------ ------ ------
192.168.1.4 192.168.1.10
Q1. How can I forward the 'http://204.146.18.33' request to the
internal webserver(192.168.1.10) with IPCHAINS? I used to use
ipportfw with linux kernel 2.0.36 and work fine.
Q2. In stead of 204.146.18.33, I want to forward 'http://204.146.18.34'
request to the internal webserver as well. Thus, I setup IP alaising
in the firewall, eth0:1. I want to know how does it impact the
rules
of IPCHAINS and make it work.
Q3. PC 1 is unable to browse 'http://204.146.18.33' but
'http://192.168.1.10'.
People say that this can be fixed with an internal DNS. Is it the
proper
way to fix the problem?
Q4. Do you have any sample rules that I can make reference to?
Thanks in advance.
Regards,
Martin NG
==============691D8C4F5A23E89F9F4C288B
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
<font face="Courier New,Courier">Hi all,</font><font face="Courier New,Courier"></font>
<p><font face="Courier New,Courier">I have question about using IPCHAINS.
Following is our network.</font>
<br><font face="Courier New,Courier"></font> <font face="Courier
New,Courier"></font>
<p><font face="Courier New,Courier">External Network</font>
<br><font face="Courier New,Courier">
|</font>
<br><font face="Courier New,Courier">
|</font>
<br><font face="Courier New,Courier"> eth0 |</font>
<br><font face="Courier New,Courier">-------------------</font>
<br><font face="Courier New,Courier">| 204.146.18.33 |</font>
<br><font face="Courier
New,Courier">|
| Redhat6.0 w/</font>
<br><font face="Courier New,Courier">|
Firewall
| linux Kernel 2.2.5-15</font>
<br><font face="Courier
New,Courier">|
|</font>
<br><font face="Courier New,Courier">| 192.168.1.1
|</font>
<br><font face="Courier New,Courier">-------------------</font>
<br><font face="Courier New,Courier">
| eth1</font>
<br><font face="Courier New,Courier">
|</font>
<br><font face="Courier New,Courier">
|</font>
<br><font face="Courier New,Courier">Internal
Network---------------------------------</font>
<br><font face="Courier
New,Courier">
|
| |</font>
<br><font face="Courier
New,Courier">
|
| |</font>
<br><font face="Courier
New,Courier">
====== ======
======</font>
<br><font face="Courier
New,Courier">
| SMTP | | Web | | PC 1
|</font>
<br><font face="Courier
New,Courier">
|Server| |Server|
||
|</font>
<br><font face="Courier
New,Courier">
====== ======
======</font>
<br><font face="Courier
New,Courier">
192.168.1.4 192.168.1.10</font>
<br><font face="Courier New,Courier"></font> <font face="Courier
New,Courier"></font>
<p><font face="Courier New,Courier">Q1. How can I forward the '<A
HREF="http://204.146.18.33">http://204.146.18.33</A>'
request to the</font>
<br><font face="Courier New,Courier"> internal
webserver(192.168.1.10)
with IPCHAINS? I used to use</font>
<br><font face="Courier New,Courier"> ipportfw with linux
kernel 2.0.36 and work fine.</font><font face="Courier New,Courier"></font>
<p><font face="Courier New,Courier">Q2. In stead of 204.146.18.33, I want
to forward '<A HREF="http://204.146.18.34">http://204.146.18.34</A>'</font>
<br><font face="Courier New,Courier"> request to the
internal webserver as well. Thus, I setup IP alaising</font>
<br><font face="Courier New,Courier"> in the firewall,
eth0:1. I want to know how does it impact the rules</font>
<br><font face="Courier New,Courier"> of IPCHAINS and
make it work.</font><font face="Courier New,Courier"></font>
<p><font face="Courier New,Courier">Q3. PC 1 is unable to browse '<A
HREF="http://204.146.18.33">http://204.146.18.33</A>'
but '<A HREF="http://192.168.1.10">http://192.168.1.10</A>'.</font>
<br><font face="Courier New,Courier"> People say that
this can be fixed with an internal DNS. Is it the proper</font>
<br><font face="Courier New,Courier"> way to fix the
problem?</font><font face="Courier New,Courier"></font>
<p><font face="Courier New,Courier">Q4. Do you have any sample rules that
I can make reference to?</font><font face="Courier New,Courier"></font>
<p><font face="Courier New,Courier">Thanks in advance.</font><font face="Courier
New,Courier"></font>
<p><font face="Courier New,Courier">Regards,</font>
<br><font face="Courier New,Courier">Martin NG</font>
<br><font face="Courier New,Courier"></font> </html>
==============691D8C4F5A23E89F9F4C288B==
------------------------------
Date: Thu, 08 Jul 1999 08:44:25 -0400
From: "R. L." <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.questions,comp.os.os2.networking.tcp-ip,comp.os.ms-windows.nt.admin.networking,comp.os.ms-windows.nt.admin.networks
Subject: Re: subnetmask (function) / Funktion der Subnetmask
You probably always use the default subnet masks (255.255.255.0 for Class C, as
in your example), but a computer cannot simply assume that's what you want. You
have to tell it exactly where the network bits end and the host bits start.
For example, 192.10.10.10 and 192.20.20.20 with a 255.255.255.192 subnet mask
would be on the same network. I recommend you find a nice spot on the web
(there are many) that go into subnetting in detail. Or buy a book.
Phil wrote:
> Hallo
>
> (deutsche Version weiter unten!)
>
> I'd like to know why one needs a subnetmask. (What is it for?)
> In my Opinion the IP-Adresse divides the Network in two parts (if you're
> using an IP-Adresse 192.168.0.x and an IP-Adresse 192.168.1.x [two
> Subnets]), doesn't it?
>
> Additionally
> [for example
> 192.168 .0.80
> (Netanteil)(Hostanteil).
> ]
>
> My question: why do you need a subnetmask??? What does the subnetmask
> divides (up)?
> (May you give me an example?)
>
> Thanks
>
> Phil
>
> ----------------------------------------------------------------------------
> ---
>
> Hallo
>
> Ich m�chte gerne wissen, f�r welchen Zweck die Subnet Mask verwendet
> wird. Die IP-Adresse grenzt ja das Netz (Netzteil) ein, oder nicht?
> [z.B.
> 192.168 .0.80
> (Netzanteil)(Hostanteil).
> ]
>
> F�r was wird die genau Subnetmask ben�tigt. Was unterteilt sie?
>
> herzlichen Dank im Voraus
>
> gruss phil
------------------------------
From: Sami Yousif <[EMAIL PROTECTED]>
Subject: Re: Need help with static routes
Date: Wed, 07 Jul 1999 23:33:18 -0500
Ron Cadavero wrote:
> I am running Red Hat 5.2 and need advice on setting up the routing info.
> I have the machine on a small network behind a cable modem and am able
> to ping the other hosts and the modem. I cannot ping anything beyond the
> modem, however. I know this has something to do with the way I set up
> the routing info. Can someone tell me the best way to set up the
> ip/routing on this machine?
Although meant for Mediaone users by a mediaone user, this is useful for
those using Linux and cablemodems
http://rlz.ne.mediaone.net/linux/faq/
--
-
Sami Yousif
mailto:[EMAIL PROTECTED]
http://www.mav.net/teddyr/syousif/ Personal Page
http://www.alug.org/ Amarillo Linux Users Group
[eMail sent to any of my addresses is subject to the Conditions outlined
in http://www.mav.net/teddyr/emailtos.shtml]
------------------------------
From: "Nomego" <[EMAIL PROTECTED]>
Subject: RedHat 6 + DHCP ISP = RPC Errors
Date: Thu, 8 Jul 1999 14:56:11 +0200
I get the following errors when booting / closing linuxconf.. what to do?
Executing: /etc/rc.d/rc3.d/S10network reload
> Bringing up device eth0
> Delaying eth0 initialization.
> [300C [20D[ [1;31mFAILED [0;39m]
Executing: /etc/rc.d/rc3.d/S60nfs restart
* rpc.statd: no process killed
* nfsd: no process killed
* rpc.mountd: no process killed
* rpc.quotad: no process killed
> Restarting NFS services: rpc.statd nfsd rpc.mountd rpc.quotad done.
Executing: /etc/rc.d/rc3.d/S85gpm start
> Starting gpm mouse services
------------------------------
From: Thomas Kuiper <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.questions,comp.os.os2.networking.tcp-ip,comp.os.ms-windows.nt.admin.networking,comp.os.ms-windows.nt.admin.networks
Subject: Re: subnetmask (function) / Funktion der Subnetmask
Date: Thu, 08 Jul 1999 14:56:54 +0200
Hi R.L.,
the computer always can assume that since Subnetting is only a _local_
configuration, you can have other hosts in the network with other Subnet
Masks, it wouldn't matter. Besides 192.10.10.10 and 192.20.20.20 with a
Subnet Mask of 255.255.255.192 are definetly not in the same network :-)
With a Subnet Mask of 255.255.255.192 you divide a already existing
Class C Network into 4 new Nets.
Host ranges:
192.10.10.1 -> 192.10.10.62 (Broadcast 192.10.10.63)
192.10.10.65 -> 192.10.10.126 (Broadcast 192.10.10.127)
192.10.10.129 -> 192.10.10.190 (Broadcast 192.10.10.191)
192.10.10.193 -> 192.10.10.254 (Broadcast 192.10.10.255)
You always "lose" one IP address
for the Network and one for the Broadcast address.
A good start for learning this is probably the Subnetting Howto
from Linux or a good book e.g. from O'Reilly, which you should buy too
:-)
Regards,
Thomas Kuiper
damn crossposts.
"R. L." wrote:
>
> You probably always use the default subnet masks (255.255.255.0 for Class C, as
> in your example), but a computer cannot simply assume that's what you want. You
> have to tell it exactly where the network bits end and the host bits start.
>
> For example, 192.10.10.10 and 192.20.20.20 with a 255.255.255.192 subnet mask
> would be on the same network. I recommend you find a nice spot on the web
> (there are many) that go into subnetting in detail. Or buy a book.
>
------------------------------
From: Thomas Kuiper <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.questions,comp.os.os2.networking.tcp-ip,comp.os.ms-windows.nt.admin.networking,comp.os.ms-windows.nt.admin.networks
Subject: Re: subnetmask (function) / Funktion der Subnetmask
Date: Thu, 08 Jul 1999 14:57:25 +0200
Hi R.L.,
the computer always can assume that since Subnetting is only a _local_
configuration, you can have other hosts in the network with other Subnet
Masks, it wouldn't matter. Besides 192.10.10.10 and 192.20.20.20 with a
Subnet Mask of 255.255.255.192 are definetly not in the same network :-)
With a Subnet Mask of 255.255.255.192 you divide a already existing
Class C Network into 4 new Nets.
Host ranges:
192.10.10.1 -> 192.10.10.62 (Broadcast 192.10.10.63)
192.10.10.65 -> 192.10.10.126 (Broadcast 192.10.10.127)
192.10.10.129 -> 192.10.10.190 (Broadcast 192.10.10.191)
192.10.10.193 -> 192.10.10.254 (Broadcast 192.10.10.255)
You always "lose" one IP address
for the Network and one for the Broadcast address.
A good start for learning this is probably the Subnetting Howto
from Linux or a good book e.g. from O'Reilly, which you should buy too
:-)
Regards,
Thomas Kuiper
damn crossposts.
"R. L." wrote:
>
> You probably always use the default subnet masks (255.255.255.0 for Class C, as
> in your example), but a computer cannot simply assume that's what you want. You
> have to tell it exactly where the network bits end and the host bits start.
>
> For example, 192.10.10.10 and 192.20.20.20 with a 255.255.255.192 subnet mask
> would be on the same network. I recommend you find a nice spot on the web
> (there are many) that go into subnetting in detail. Or buy a book.
>
------------------------------
From: "Sebastien Breault" <[EMAIL PROTECTED]>
Subject: Want to share my cable internet connection
Date: Thu, 8 Jul 1999 09:03:09 -0400
I want to share my internet connection via a linux box. From the linux box i
can access internet ans ping all other pc on my local network.
Now i dont know how to confirure my linux to get access internet from my
win98 box.
eth0: dynamic IP assigned by DHCP from my ISP
eth1: connect to my hub
gateway ???
default route ???
what should i do to get working????
please answer, i'm working on this from 1 week @$#@$
------------------------------
From: "Mendel" <[EMAIL PROTECTED]>
Subject: pop-mail in redhat 6.0 and remote popping?
Date: 8 Jul 1999 12:12:44 GMT
Can anybody tell me what I am doing wrong in my mail configuration?
Everytime I log into the pop-port, it gives a comment like Connection
closed by foreign host. When I email to the domain in question I get an
error saying it might be an MX-misconfiguration, but it looks like
everything is ok...
telnet localhost 110
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
Connection closed by foreign host.
When loggin in with Eudora from win 98, it says:
Logging into POP Server
Error reading from network Cause: Connection closed by foreign host (0)
In the error-mail to postmaster it reads:
553 mail.amorf.com config error: mail loops back to me (MX problem?)
554 <[EMAIL PROTECTED]>... Local configuration error
The pop-3 service is turned on in inetd.conf, and is listening on port 110.
What can I do, please help,
Mendel
------------------------------
From: "Phil Green" <[EMAIL PROTECTED]>
Subject: Re: DDNS Server for Linux
Date: Thu, 8 Jul 1999 07:33:31 -0600
Are there any other products? For example, is there anything like NetID
from Bay Networks in the Linux/Unix world. It would be important to be able
to support like 10,000 dhcp addresses/dns entries, etc. and be able to do
this across the enterprise.
Please let me know if there is anything like that our there.
TIA
Ron van Middendorp <[EMAIL PROTECTED]> wrote in message
news:7j5ovk$3s8$[EMAIL PROTECTED]...
> http://royans.net/info/rkt/service/dydns/
>
> Got no experience with it, but hey...
>
> Ron
>
> Ken Hughes <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]...
> > Does anyone know of any dynamic DNS servers for Linux? I've been
> > searching for a while but with no luck.
> >
> > Ken Hughes
> >
>
------------------------------
From: [EMAIL PROTECTED] (Kevin Turnquist)
Subject: PPP Configuration Guide/Docs?
Date: 7 Jul 1999 23:16:17 -0500
I have been fighting with PPP dial-on-demand for a couple days. After
stepping through the PPP How-To and the ISP Connection How-To, I'm stuck.
I want to set it up so my two Windows boxes can use the linux box as
an internet gateway, but can't seem to lick this problem:
The modem dials, and /var/adm/messages says that the connection has
been made:
Jul 8 00:13:12 compleat pppd[142]: Serial connection established.
Jul 8 00:13:12 compleat pppd[142]: Using interface ppp0
Jul 8 00:13:12 compleat pppd[142]: Connect: ppp0 <--> /dev/ttyS1
But that is it. An IP address is never assigned, and eventually the
program hangs up.
I'm using kernel 2.2.10, with IPChains and IPMasquarading.
Does anyone know of a configuration guide out there for the kind of
setup I'm looking for? It would be greatly appreciated.
--
Kevin Turnquist
[EMAIL PROTECTED]
-----------== Posted via Newsfeeds.Com, Uncensored Usenet News ==----------
http://www.newsfeeds.com The Largest Usenet Servers in the World!
======== Over 73,000 Newsgroups = Including Dedicated Binaries Servers =======
------------------------------
From: Chris Mahmood <[EMAIL PROTECTED]>
Subject: Re: ppp broke on upgrade to 2.2.9
Date: 07 Jul 1999 19:54:49 -0700
Reply-To: [EMAIL PROTECTED]
read the docs that came with your kernel
(esp. linux/Documentation/networking/ppp.txt) and stop posting in
html.
-ckm
------------------------------
From: Leo Cyr <[EMAIL PROTECTED]>
Subject: pppd server - no gettys need apply
Date: Thu, 08 Jul 1999 09:40:39 -0400
I'd greatly appreciate pointers to get a pppd server setup which does
not use getty for the user to login to and then run pppd as the user's
login shell. I've heard of this being done by running pppd inside
inittab and having the options set so that pppd with auth dialin users
via pap or chap. I'm asking this because I've tried a WIDE variety of
configuration possibilities with (virtually) no success.
TIA
Leo
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To:
omp.os.ms-windows.nt.advocacy,comp.os.linux.advocacy,comp.infosystems.www.servers.unix,comp.os.linux.misc
Subject: Re: Could Microsoft Cheat On The New Mindcraft Benchmark?
Date: 8 Jul 1999 13:16:50 GMT
In comp.os.linux.misc John Imrie <[EMAIL PROTECTED]> wrote:
= "Fredrich P. Maney" wrote:
= >
= > That has far more to do with the fact that Baseball was invented in the
= > USA than any sort of national egotism.
= Rugby Football was invented in England ... dito Circket.
I thought Rugby was invented in Wales...
(Probably wrong though)
Besides... What's American football but an over-complicated version of
rugby for wimps?
--
|[EMAIL PROTECTED]| |
| Andrew Halliwell | "The day Microsoft makes something that doesn't |
| Finallist in:- | suck is probably the day they start making |
| Computer science | vacuum cleaners" - Ernst Jan Plugge |
==============================================================================
|GCv3.1 GCS/EL>$ d---(dpu) s+/- a- C++ U N++ o+ K- w-- M+/++ PS+++ PE- Y t+ |
|5++ X+/++ R+ tv+ b+ D G e>PhD h/h+ !r! !y-|I can't say F**K either now! :( |
------------------------------
From: John Imrie <[EMAIL PROTECTED]>
Crossposted-To:
omp.os.ms-windows.nt.advocacy,comp.os.linux.advocacy,comp.infosystems.www.servers.unix,comp.os.linux.misc
Subject: Re: Could Microsoft Cheat On The New Mindcraft Benchmark?
Date: Thu, 08 Jul 1999 14:26:44 +0100
Darren Winsper wrote:
>
> > That has far more to do with the fact that Baseball was invented in the
> > USA than any sort of national egotism.
>
> You have a funny definition of invented. It looks more like a
> derivative of rounders to me.
>
No. No. No. Base ball and Rounders are fundermentaly different.
You can play rounders for the price of a small round ball. (it you are prepared to
use a stick as a bat).
Base ball requires vast amounts of mony spent on shirts, caps, bats etc :)
------------------------------
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End of Linux-Networking Digest
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