Linux-Networking Digest #40, Volume #12 Wed, 28 Jul 99 23:13:45 EDT
Contents:
Re: bootp/diskless computer ([EMAIL PROTECTED])
Network Printers (Carolyn)
Re: MS Proxy Client ("John Hansknecht")
Re: VPN using Linux ("Andrey Smirnov")
Re: pppd exits immediately (Clifford Kite)
Firewire (1394) Linux Driver? ("Jim Wilson")
PPP and SMP (Weidong Li)
Re: Linux ---> MS Proxy 2.0? ("John Hansknecht")
No need, its all good. (luke)
How do I multicast on ethernet? (Young min Kim)
module dependency problem on startup ("Greg Breheny")
Re: Can't ping ISP ("mikes")
Default Gateway: Which one??? ("mikes")
Re: DSL in RedHat 6.0 ("Andrey Smirnov")
----------------------------------------------------------------------------
From: [EMAIL PROTECTED]
Subject: Re: bootp/diskless computer
Date: Thu, 29 Jul 1999 01:15:06 GMT
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Frank Luedke) wrote:
> [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
> >I am trying to boot a client via bootp,tftp, and nfs. So far
> >I am just concentrating on bootp.
>
> Did you compile a new kernel for your server?
Do you mean the client ?
>
> In the latest version of a german linux magazine there is
> a short report about how to set up diskless X-terminals.
>
> They say, that you *have* to include the following
> configurations in your kernel (f.ex. 2.2.1):
I set this configuration on the client side
>
> CONFIG_BLK_DEV_RAM=y
> ...
> CONFIG_IP_PNP=y
> CONFIG_IP_PNP_BOOTP=y
> ...
> CONFIG_NFS_FS=y
> CONFIG_ROOT_NFS=y
> After that you must add a special boot signature
> to your zImage:
>
> mknbi -k zImage -o bootimg -d /boot/root
>
> zImage herein is the input, bootimg the output file
> and /boot/root the NFS-root-directory. mknbi is part
> of the etherboot packet.
This for booting directly from the ethernet card right?
I tried that once, but it did not recognize my ethernet card.
So I decided to get the bootp process working first.
Client boots linux from boot/root disk
Client uses bootp to get its IP address. I did not get this working
and I am not really sure why it is not working.
I can see the client sending bootp request packetss - at least this is
what the client says. The packets seem to arrive ( the acknowlede lamp
of the server ethernet card flashes whenever a bootp packet is
received), but they somehow don't not get to the bootp server (which I
run in debug mode and on the command line so I see what it does - and
it does nothing expect reading and parsing /etc/bootptab)
> You may find some additional informations at one of the
> following adresses:
>
> [Etherboot-Homepage]
> - http://www.slug.org.au/etherboot
>
> [Setting up an X-Terminal with Linux]
> - http://ext2.org/99/01/xterm.html
I will do some reading on those, thanks
Cheers,
Tilman
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: Carolyn <[EMAIL PROTECTED]>
Crossposted-To: redhat.networking.general
Subject: Network Printers
Date: 29 Jul 1999 01:31:18 GMT
We have setup RH6.0 to use as a Linux print server. Setting up printers,
clients and configuring clients to use the printers is relatively easy
(WIN95 clients on a Novell network); however, now we need a tool similar
to jetadmin for netware to manage queues and jobs and troubleshoot. I
don't anticipate problems with this printer connectivity; however, want to
be prepared.
It was interesting today when I could ping the linux server; however, when
we tried to access through network neighborhood or WebAdmin utility it
could not be found. I could visually see the box was up and connected,
but no one could access it. It was shutdown and everyone's printer
connection was reconnected without a client reboot!! That was so client
friendly it was unreal!!
Carolyn
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------------------------------
From: "John Hansknecht" <[EMAIL PROTECTED]>
Subject: Re: MS Proxy Client
Date: Wed, 28 Jul 1999 21:39:36 -0400
Paul Cook <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Hi.
>
> I am at a University which implements the use of MS Proxy Server on an
> NT box. Each client requires that Proxy Client be installed for logging
> and monitoring of data. Is it possible to either configure Linux (Redhat
> 6) or download software for clients so that they can use this service??
> I really want to get Linux going on the net using this setup.
>
> Any help is much appreciated.
>
> Paul Cook
>
I believe you can use a Linux client through MS Proxy. However you need to
switch the Web server setting's for authentication from "NT Challenge" to
"Basic". As this sends passwords over your internal network un-encrypted you
may want to think twice before taking this option.
--
To Reply change 'at' to @ and 'dot' to . and remove spaces in address below.
John Hansknecht , MCP
HansTech Services
jhansknecht at hanstech dot com
------------------------------
From: "Andrey Smirnov" <[EMAIL PROTECTED]>
Subject: Re: VPN using Linux
Date: Wed, 28 Jul 1999 18:01:33 -0700
Here is some information about VPN on Linux platform.
I have setup a vpn at my home network, and I dial to ISP than use PPTP from
my Win95 laptop and get to my internal network over the Internet. Only works
from Win95 station, bugs out from NT! As far as setting up a vpn between two
Linux firewalls using SSH, I've made an attempt to do so, but due to the
fact that I don't have a proper lab environment (with two Linux firewalls) I
had to postponed this project. Everything looked simple enough, so give it a
shot.
I don't have any experience with IPSec, so good luck!
http://www.moretonbay.com/vpn/pptp.html
http://metalab.unc.edu/LDP/HOWTO/mini/VPN.html
ftp://ftp.rubyriver.com/pub/jhardin/masquerade/ip_masq_vpn.html#HOWTO
Jon Finnecy <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> I am researching using Linux firewalls to set up a VPN between two
> remote LANs over the Ineternet. I would also like to use this same
> setup to establish VPNs with remote Win95 clients (like laptops, etc).
> These clients would connect to their ISP through a local dial-up PPP,
> then establish their VPN link to the corporate LAN. I am currently
> using ipfwadm (kernel 2.0) for my firewalls, and would like to avoid
> having to upgrade to IPChains (kernel 2.2) if possible, but if necessary
> I can do this. My LAN-ISP links will be 1.1M DSL connections (1.1M
> upstream and downstream for both LANs). I don't think this is anything
> new, I just need some direction to get started.
>
> 1) What would be the best way to go, IPSec or PPTP, in terms of
> interoperability?
>
> 2) What are the tradeoffs between the two in terms of a) ease of use;
> b) ease of configuration; c) reliability; d) performance?
>
> 3) Does anyone know where I can get free/cheap Win95 client software
> that will enable my Win95 clients to connect to the "VPN Server"? My
> understanding is that Win98 comes with built-in PPTP support, but what
> about Win95? Is there a patch or something that I need to support this
> functionality? What about Win95 and IPSec?
>
> 4) Are there any performance issues with trying to run a VPN over DSL
> that anyone is aware of (other than traditional Internet-related
> performance issues)? I have seen some complaints in the newsgroups
> about performance with DSL/VPN, but I would like to hear more details.
>
> I have read quite a bit about this in the last few days, but I would
> love to hear specifics from anyone who has actually done it (VPN). I am
> leaning towards IPSec, but I am not sure if my Windoze clients will
> support such a setup. Any help would be greatly appreciated.
>
> -Jon
>
------------------------------
From: kite@NoSpam.%inetport.com (Clifford Kite)
Subject: Re: pppd exits immediately
Date: 28 Jul 1999 21:01:36 -0500
Childress ([EMAIL PROTECTED]) wrote:
: I am in dire need of help setting up my Slackware Linux to stay connected to
: my ISP. When I use the ppp-on script that I found in the PPP-HOWTO while
: running tail -f /var/log/messages my modem connects, sends the login and
: password...then /var/log/messages shows :
: .........
: pppd[830] : Serial Connection established.
: pppd[831] : Exit.
Look in /etc/ppp/connect-errors for clues. Post exact copies of your
ppp-on and ppp-on-dialer scripts for the group to see. You may have
created them from the how-to but most of us make errors and some are
not obvious. My first guess would be that the chat script terminated
just before it could gracefully hand control back to pppd.
There should be more messages in /var/log/messages, is there any thing that
looks odd in them? Post the exact messages, including timestamps,
see my signature for an easy way to extract messages from the log files.
What kernel version are you running? Exactly what pppd version?
--
Clifford Kite <kite@inet%port.com> Not a guru. (tm)
/* To extract lines: View file with "vi -R". Move cursor to first line.
Press "v". Move cursor to mark lines (Esc unmarks). Write lines to
fubar with ":w fubar <Enter>". Exit with ":q <Enter>". */
------------------------------
From: "Jim Wilson" <[EMAIL PROTECTED]>
Subject: Firewire (1394) Linux Driver?
Date: Wed, 28 Jul 1999 20:43:31 -0500
Does anyone know if any drivers are available for firewire (1394) cards
under Linux? Any feedback would be most appreciated.
------------------------------
From: Weidong Li <[EMAIL PROTECTED]>
Subject: PPP and SMP
Date: 29 Jul 1999 01:38:12 GMT
Well, I partly solved the puzzle myself. The reason why
PPP doesn't work in my computer is that I am running
a dual 450mhz HP Kayak XA-s workstation, and the kernel
is compiled to support SMP. When I booted the computer
in single processor mode, PPP works beautifully!
Is there a confliction between PPP and SMP? In other words,
Is PPP supported in SMP? I would love to switch back
to SMP mode because I have very heavy computations, but
I also love to be connected to the internet!
Cheers,
weidong
>>> Hi all,
>>>
>>> Please help!
>>>
>>> I would really like to hook up my favorate Linux operation
>>> system to internet using PPP. I am using Slackware 4.0, and
>>> have used pppsetup to setup the PPP connection. However,
>>> each time when the modem is connected, pppd exits immediately
>>> and complaints with an error message of
>>>
>>> ioctl(PPPIOCGUNIT): Operation not permitted(1)
>>>
>>> skip system log output
>>>
>>> Any comments and suggestions are welcome!
>>>
>>> -Weidong
------------------------------
From: "John Hansknecht" <[EMAIL PROTECTED]>
Subject: Re: Linux ---> MS Proxy 2.0?
Date: Wed, 28 Jul 1999 21:37:20 -0400
Martijn Coenen <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> Hi all,
>
> My company (an MS-company unfortunately) has installed MS Proxy Server 2.0
> recently on our network and since then I cannot get out to the Internet
> anymore on my Linux box (I am the only one running it at the office). I'll
> give the current config to make things clear...
>
> To the outside:
> MS Proxy server: ns.wibb.nl (193.172.213.130)
>
> Inside:
> We use 192.168.10.x as internal network called ipintern.nl. So my IP is
> 192.168.10.150 known as Martijn.ipintern.nl
> The gateway is same PC as the proxy, to the internal network known as
> 192.168.10.1
> The DNS server is another PC, to the inside of the firewall known as
> 192.168.10.2
>
> So under Linux I can reach all adresses inside the network, I can do DNS
> query's on both adresses in- and outside the network but I cannot open any
> internet pages outside. I did configure netscape and lynx for proxy but
that
> doesn't seem to work out. I was wondering if it is even possible to get
> outside - isn't this just another nice MS trick forcing ppl to use
Windows?
>
> Any help appreciated,
>
> Martijn Coenen
>
>
I was able to get MS Proxy 1.0 to work with Linux, but a had to change the
NT Web server authentication option from "NT Challenge" to Basic. This move
weakens your internal security, however I am only running a home network.
--
To Reply change 'at' to @ and 'dot' to . and remove spaces in address below.
John Hansknecht , MCP
HansTech Services
jhansknecht at hanstech dot com
------------------------------
From: luke <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux,comp.os.linux.help
Subject: No need, its all good.
Date: Thu, 29 Jul 1999 01:42:27 GMT
Its all good now, everything is up and running :)
Thanks
------------------------------
From: Young min Kim <[EMAIL PROTECTED]>
Subject: How do I multicast on ethernet?
Date: Thu, 29 Jul 1999 11:45:18 +0900
==============949E989B18374B9332ABBE24
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Prentice Hall, INTERNETWORKING WITH TCP/IP VOLUME 1, P290
"Initially, the network interface hardware is configured to accept
packets destined for ther Ethernet
broadcast address or machine's hardware address. However, an interface
can be reconfigured easily
to allow it to recognize a small set of multicast addresses as well"
1. How do I check multicast address which was confiugred initally?
2. How do I reconfigure Ethernet network card for multicast?
==============949E989B18374B9332ABBE24
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Prentice Hall, INTERNETWORKING WITH TCP/IP VOLUME 1, P290
<br>"<b><i>Initially</i></b>, the network interface hardware is
<b><i>configured</i></b>
to accept packets destined for ther Ethernet
<br>broadcast address or machine's hardware address. However, an interface
can be <b><i>reconfigured</i></b> easily
<br>to allow it to recognize a small set of multicast addresses as well"
<p>1. How do I check multicast address which was confiugred initally?
<br>2. How do I reconfigure Ethernet network card for multicast?
<br>
<br> </html>
==============949E989B18374B9332ABBE24==
------------------------------
From: "Greg Breheny" <[EMAIL PROTECTED]>
Subject: module dependency problem on startup
Date: Thu, 29 Jul 1999 12:26:25 +1000
I am using RedHat52 and am having a problem loading a module at startup, it
loads ok manually after login. The module is for a stallion multi-port
card. The error on startup is:-
Finding module dependencies
/lib/modules/preferred/misc/stallion.o unresolved symbol(s)
Is it possible to turn off dependency checking somehow for just this
stallion module.
Thanks
Greg
------------------------------
From: "mikes" <[EMAIL PROTECTED]>
Subject: Re: Can't ping ISP
Date: Wed, 28 Jul 1999 20:57:50 -0500
Reply-To: "mikes" <[EMAIL PROTECTED]>
Here's a few more details. I'm puzzled as to why I still can't ping my ISP.
I *think* my problem may be with my Samba Server, but I'm guessing. BTW, I'm
working from Paul Sery's book "Linux Network Toolkit". Anyways, I can ping
the Win95 machine from the firewall, and can ping my ISP from my firewall
(when connected to my ISP). From my Win95 machine I can ping both ether
cards in my Samba server, and even the ether card on the firewall, but
cannot ping my ISP from my Win95 machine. As far as I can tell, I have ipv4
enabled on both my firewall and the samba server (at least that's what RH6
reports as it reboots), and have masquerading set on both machines. I have
installed a set of firewall rules (plus reset) on the firewall. What I
wonder about are some of the more finer settings. In other words, my
firewall can't "see" my ISP unless I tell it where it is by filling in DNS.
I wonder if I should do the same, but for my Win95 machines? I'm sure that
*somewhere* you must tell the firewall, samba server, or both that
"192.168.1.2 = my Win95 machine connected to the hub somewhere", correct?
Perhaps if I knew what to look for, I may just get this whole thing working
yet.
Thanks in advance for the help....
-Mike
ps. Here is my basic setup:
Win95 <--> Hub <--> Samba Server <--> Firewall <--> modem <--> ISP
Mark Bestel wrote in message <[EMAIL PROTECTED]>...
>This is probably the case because your firewall machine (linux?) does
>not have IP forwarding enabled. This should be the case if you do not
------------------------------
From: "mikes" <[EMAIL PROTECTED]>
Subject: Default Gateway: Which one???
Date: Sun, 25 Jul 1999 10:49:20 -0500
Reply-To: "mikes" <[EMAIL PROTECTED]>
When I use Linuxconf to set up -Routing and gateways / Defaults, it says:
"If your system is connected to the Internet using either Slip or PPP,
then don't set the default route in Linuxconf. Just select the default
route option of the specified connectivity package you are using (dip,
ppd, slirp). Those packages will setup the default route when the
link is up and remove it when it goes down. With PPP, IP numbers are
often allocated dynamically from the other side, so you have little
idea of the gateway IP until the link is up."
My question is: What is the proper Default gateway for ppp0?
The "Defaults" setup dialog box says:
"Enter the IP number of the main gateway
And indicate if this machine is allowed to
route IP packets
Default gateway (some IP here?)
[ } Enable routing
Accept Cancel Help"
If you're not supposed to enter an IP number, then what do you enter?
-Mike
------------------------------
From: "Andrey Smirnov" <[EMAIL PROTECTED]>
Subject: Re: DSL in RedHat 6.0
Date: Wed, 28 Jul 1999 19:44:56 -0700
Hello, Mr. Dynamite,
What's your network config like? Can you include output of ifconfig -a and
netstat -rn commands.
Good luck!
Mr Dynamite <[EMAIL PROTECTED]> wrote in message
news:bdLn3.391$[EMAIL PROTECTED]...
> Greetings,
>
> So far, setting up linux hasn't been THAT big of a task. First off, I
> managed to get through my instalation fairly successfuly, and then
realized
> xfree86 doesn't like to start with an ATI rage 128 card... anyway, I setup
> the trial of accelerated x, and everything worked wonderfully. SO.. next
> order of business was to setup the network.. I'm using a Cisco 675 in PPP
> mode... Well, I was able to find somebody to help in #linux_help on efnet,
> and was told that to setup my cisco as he default gateway, to use the
> command:
> "route add default gw 10.0.0.1 netmask 0.0.0.0 dev eth0 metric 1"
> however upon executing that command, I was told "network unreachable"..
> icky... Well I was hoping somebody could help me out a lil bit... I read a
> thread before that a FAQ was being assembled, and was wondering if anybody
> had seen it? The only bit of evidence I have as to my progress in getting
> it to work is that when I click ACTIVATE under network control panel on
the
> ethernet device I see some local network traffic on the router... any help
> would be appreciated..
>
> Brandon
>
>
------------------------------
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