Linux-Networking Digest #9, Volume #12 Mon, 26 Jul 99 03:13:25 EDT
Contents:
Re: dhcpd ("TURBO1010")
Re: Linux Internet Email gateway and MS Exchange.... (Chris Hubbard)
Re: how to change startup config? (Zone)
Re: stopping telnet (Zone)
Re: Multiple ISP configuration (Zone)
RH 6.0 + 3C509B-TPC card??? ("Stew Smith")
only localhost login with RedHat 6.0 andDHCP? (Matthew Zenkar)
problems with isdn-external modem and PPP connection ("Itay Levy")
I.P. addresses and ppp and such ("bobc")
Re: RH 6.0 + 3C509B-TPC card??? ("Jan Johansson")
Re: once I installed the second NIC the first stoped working (Artur Swietanowski)
RE: PPP Causes ?Wierd? Problems . . . ("Jorge Eduardo Collini")
Re: Is 3Com's 3c905B NIC compatible with Linux? (Artur Swietanowski)
Re: Why not C++ (David Schwartz)
Re: IP Masquerading vs. QuickTime Streaming (Artur Swietanowski)
Re: Transparent Proxy - ipchains question (Glenn �sterud)
Re: Connecting linux-win95 (Jeff Silverman)
Re: win 95 connection problem to Samba (Jeff Silverman)
squid ("Jochen Dachauer")
----------------------------------------------------------------------------
From: "TURBO1010" <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.hardware,alt.os.linux,alt.linux.sux,alt.linux,alt.os.linux.caldera
Subject: Re: dhcpd
Date: Sun, 25 Jul 1999 21:16:13 -0700
Thanks it worked, but I'm having problems. Seems that windows keeps saying
there is a conflict, with a device that has an address of just all
00:00:00:00. I don't know where this is comming from. I am running ip
masquerading, with ipchains, and connected to DSL. Maybe their DHCP server
is trying to assign an IP address to my other computers. If anyone knows
what port DHCPD uses, I could block it out on eth0 using IP chains.
Stuart R. Fuller <[EMAIL PROTECTED]> wrote in message
news:bgn7n7.9ep.ln@localhost...
> TURBO1010 ([EMAIL PROTECTED]) wrote:
> : Help, I can't start dhcpd.
> :
> : This is what I get right now when I try to start dhcpd
> :
> : [root@comp1 juan]# Listening on Socket/eth1/192.168.1.0
> : Sending on Socket/eth1/192.168.1.0
> : No subnet declaration for eth0 (209.203.123.110).
> : dhcpd: exiting.
>
> dhcpd is complaining that you don't have a subnet declaration for your
> external network. So, the solution is to give it a subnet declaration,
but
> don't list any addresses that it should serve:
>
> subnet 24.2.252.0 netmask 255.255.254.0 {
> }
>
> Stu
------------------------------
From: [EMAIL PROTECTED] (Chris Hubbard)
Subject: Re: Linux Internet Email gateway and MS Exchange....
Date: Mon, 26 Jul 1999 05:16:22 GMT
Reply-To: [EMAIL PROTECTED]
OK.. I now have the following.
Fetchmail collects all the mail and gives it to Root.
If I send a mail from the box to <user>@mydomain.com it goes onto the Exchange
server.
However, the mails that are being picked pup by fetchmail don't do this, they
just sit in root's box. I can then bounce them onto the same address ater I hang
up ppp and they go over to exchange.
So, how can I stop sendmail trying to send mail when I am online?
Can it be set only to listen for connections? then I can a sendmail -q to
process the que after the dial-up has terminated?
Cheers.
On Thu, 15 Jul 1999 17:45:15 GMT, [EMAIL PROTECTED] (Chris
Hubbard) wrote:
>Hi all,
>Here is what I'm trying to do.....
>
>Pick up mail on a linux box, then toss it over to one of our Exchange servers
>for distribution in the network.
>
>So its something like this:
>
>Incoming:
> Internet ---- POP3 ----> Linux Box ---- SMTP ----> MS Exchange
>Outgoing:
> MS Exchange ---- SMTP ----> Linux Box ---- SMTP ----> Internet
>
>It seems like something thats do able but I'm having a 'little' getting the
>Linux to talk to exchange.
>At the moment the Linux is fine, it'll send and receive mail and dial up quite
>happily. I have the networking done so it can see the Exchange server. I'm just
>a little stumped as to how to get them talking.
>I assume I'll have to get all the mail into one account on the box then pass
>that to exchange and it can sort out all the peoples mail.
>
>Does anyone have any clues? has anyone done anything similar?
>
>Cheers,
>Chris.
--
If you must choose between two evils,
pick the one you've never tried before.
=======================================
[EMAIL PROTECTED]
------------------------------
From: Zone <[EMAIL PROTECTED]>
Subject: Re: how to change startup config?
Date: Sun, 25 Jul 1999 22:22:39 -0600
The "startup folder" is in /etc/rc.d . Edit rc.local and add the
commands you want in the standard bash/sh format. You can also use
'linuxconf' to control service activity among other things.
Zone
Sam Bruskin wrote:
> in the process of trying to connect ppp, i re-installed and loaded
> everything . now when i look at my chat scripts to follow the HowTo
> methods i find lots of things running, i think they are servers, like
> "http" and others.
> is thre some equivalent of the dare i say windoze "startup folder" by
> which i could reduce the things that load a t startup?
>
> or is this what is meant by <shudder> "recompiling the kernel"
> </shudder>
>
> i would ask to excuse my ignorance but i notice i am not alone in my
> initial encounters with what i expect to be the beginning of a long
> friendship.
>
> thanks for assistance
>
> sam
------------------------------
From: Zone <[EMAIL PROTECTED]>
Subject: Re: stopping telnet
Date: Sun, 25 Jul 1999 22:29:05 -0600
If you would prefer to allow access on a user by user basis rather than by
domain, you can use usermod (ie 'usermod -s /dev/null username'), or edit
/etc/passwd by hand to specify the shells for each user.
Zone
Rod Smith wrote:
> [Posted and mailed]
>
> In article <7ndv42$ilo$[EMAIL PROTECTED]>,
> "System Administrator" <[EMAIL PROTECTED]> writes:
> > how do i stop people from telneting into my system..... which file do i
> > need to configure to allow/deny the people to login to my linux box
> > (redhat6.0)
>
> If you want to completely disable telnet, most Linux distributions let you
> do so by commenting out the telnet line in /etc/inetd.conf. If you want
> to permit or allow telnet to operate from some machines but not others,
> you can do this by using the /etc/hosts.allow or /etc/hosts.deny files
> (try typing "man hosts.allow" for more information). I don't know of any
> way to give remote login privileges to some people but not others,
> offhand, aside from root, which is restricted for security reasons.
>
> --
> Rod Smith
> [EMAIL PROTECTED]
> http://www.channel1.com/users/rodsmith
> NOTE: Remove the "uce" word from my address to mail me
> Author of _Special Edition Using WordPerfect for Linux_, from Que
------------------------------
From: Zone <[EMAIL PROTECTED]>
Subject: Re: Multiple ISP configuration
Date: Sun, 25 Jul 1999 22:38:12 -0600
If you're switching name servers to insure the fastest resolve times,
then I suggest running your own name server. It should be installed as
'named'. Just type that in, and set your main nameserver in
/etc/resolv.conf to 127.0.0.1 . Some tweaking of /etc/named.conf may be
necessary, but it is really quite simple (honest!).
Zone
julien wrote:
> Hello,
>
> I'd like to set up mutliple dialup configuration for linux. The goal
> is to be able to switch easily between several Internet providers (by
> passing a provider name in parameter to ppp-on).
>
> I've succeded in setting up pppd for that but I've got a problem with
> name servers. How can I dynamicly set the right dns for a
> provider.
>
> Other question, is there a way to switch between different smtp
> servers? (I'm using sendmail 8.xx).
>
> Thanks.
>
> Julien
> [EMAIL PROTECTED]
------------------------------
From: "Stew Smith" <[EMAIL PROTECTED]>
Subject: RH 6.0 + 3C509B-TPC card???
Date: Mon, 26 Jul 1999 00:43:06 -0500
I am ashamed to admit that I am considering the purchase of a 3com
networking "kit". It comes with (3) 3c509b-tpc cards, and a hub. It fits
my current needs but I was wondering if these cards work with relative ease
in RedHat Linux 6.0???
Any replies are appreciated.
Stew
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Matthew Zenkar)
Subject: only localhost login with RedHat 6.0 andDHCP?
Date: Mon, 26 Jul 1999 05:25:16 GMT
I'm a newbie at this. Here's my ultimate goal: I have 2 Netgear
NICs, and a cable modem where the cable system uses DHCP. I want to
use IP Masquerade so I can connect an NT 4.0 WS box to one of the NICs
and form an internal network.
During RH 6 setup, I set eth0 for DHCP, and after the initial
installation was complete, I set eth1 with a 192.168.x.x address. The
problem I have, so far as I can tell, is that when my machine boots, I
get the localhost login and I am unable to access anything outside of
"localhost."
If I run ifconfig, I see that eth0 was assigned a valid IP by DHCP,
eth1 has the IP I assigned to it, and localhost is also present.
Is getting the localhost login normal or not? If it is normal, what
would be the steps I need to take to simply get internet access from
localhost?
If the localhost login is not normal, then what would I do to make the
eth0 interface the default?
Thanks in advance!
If replying via e-mail, remove from "-" to "-" in my e-mail reply-to
address.
All the best,
Matthew
------------------------------
From: "Itay Levy" <[EMAIL PROTECTED]>
Subject: problems with isdn-external modem and PPP connection
Date: Sat, 24 Jul 1999 23:47:31 +0200
Hi everybody,
I'm having a problem with an ISDN\PPP connection.
I configured everything as the HOW-TO's said. The modem calls the remote
machine and (using the debug mode) the auth procedure succeeds. However -
when I try to ping the remote machine or anyother machine than mine, the
ping is stuck (not unreachable - simply stuck)...
Anyone have any idea ??
Thanks in advance,
Itay Levy - [EMAIL PROTECTED]
(remove the nospam and underscores to
reply)
------------------------------
From: "bobc" <[EMAIL PROTECTED]>
Subject: I.P. addresses and ppp and such
Date: Mon, 26 Jul 1999 02:10:42 -0400
I have a couple of ?'s,
first I have been trying to set up R.H.6.0 to
1.) dial a ppp connection to my isp
2.) config a linksyspci II lan card such that i can acess the linux machine
from 2 win 95 boxes that are networked together and working fine.
Let me explain by saying that I am new to linux, but fairly adept at windows
although I have no formal training at one point i had the ppp conection
working and was able to ping any machine from the other 2 on my local net
although I was unable to see the linux machine in net hood.
Then when trying to do a reinstall to change something (i dont even remember
what at this point) i found that I could not boot from either the Install
floppy or the cd rom.
After removing the eth0 interface i was able to boot from the cd-rom and do
a reinstall
now i cant get the ppp0 interface to work. Could some one please give me
some advice on where to start over at, and if the different ip address
classes might make any
differences.
thanx
bobc
p.s. if there are any nightowls who are game i am at icq#23445162
------------------------------
From: "Jan Johansson" <[EMAIL PROTECTED]>
Subject: Re: RH 6.0 + 3C509B-TPC card???
Date: Mon, 26 Jul 1999 06:13:05 GMT
>my current needs but I was wondering if these cards work with relative ease
>in RedHat Linux 6.0???
Like a charm, after you have booted with a dosfloppy, and used the
3c5x9xfg.exe program to disable PnP on the cards.
------------------------------
From: Artur Swietanowski <[EMAIL PROTECTED]>
Subject: Re: once I installed the second NIC the first stoped working
Date: Mon, 26 Jul 1999 07:59:21 +0200
Matt wrote:
>
> I installed my RH 6.0 with my 3c509 NIC in the machine. It worked fine
> untill I installed my second NIC, 3c900B -TPO. Now the second NIC works
> fine, but the first one does nothing. (...)
Routing is the answer. Check the routing tables to see if and how
you can send packets to eth0. You can use "netstat -r". Mine prints
more or less this:
Kernel IP routing table
Destination Gateway Genmask Flags MSS Win irtt Iface
192.168.1.1 * 255.255.255.255 UH 0 0 0 eth1
192.168.1.2 * 255.255.255.255 UH 0 0 0 eth2
133.133.33.227 * 255.255.255.255 UH 0 0 0 eth0
192.168.1.254 * 255.255.255.255 UH 0 0 0 eth2
192.168.1.254 * 255.255.255.255 UH 0 0 0 eth1
133.133.33.0 * 255.255.255.0 U 0 0 0 eth0
192.168.1.0 * 255.255.255.0 U 0 0 0 eth1
192.168.1.0 * 255.255.255.0 U 0 0 0 eth2
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
default 133.133.33.6 0.0.0.0 UG 0 0 0 eth0
The first five are routes to particular hosts (two to external hosts,
three to the interface itself). Then come network routes (with
192.168.1.0 mentioned twice, for both interfaces that share it), then
the loopback and the external gateway.
HTH,
=====================================================================
Artur Swietanowski mailto:[EMAIL PROTECTED]
Institut f�r Statistik, Operations Research und Computerverfahren,
Universit�t Wien, Universit�tsstr. 5, A-1010 Wien, Austria
tel. +43 (1) 427 738 620 fax +43 (1) 427 738 629
=====================================================================
------------------------------
From: "Jorge Eduardo Collini" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.apps,redhat.networking.general
Subject: RE: PPP Causes ?Wierd? Problems . . .
Date: Mon, 26 Jul 1999 01:35:56 -0300
Chirstopher the same happends to me! when I launch ppp anything work, i have
to open first any aplication befobe connection.
If you know something about it, please send me a mail.
Excuse me for my bad english.
Regards
Jorge
Christopher Michael <[EMAIL PROTECTED]> escribi� en el mensaje de noticias
7n6drf$8ce$[EMAIL PROTECTED]
> Wondering if someone out there might be able to get an answer to this ...
>
> Why, after I start PPP (using kppp or Gnome-ppp), do any !and! all window
> managers stop launching applications ?
>
> EG: Launch Gnome-PPP or kPPP, connect to the internet, then try to launch
> any other app and nothing will happen. It's like the window manager
(Either
> Gnome, KDE, and/or Enlightenment) just stops taking instructions ?????
>
> Gnome Panel, KDE, and Enlightenment each refuse to start another(single)
> application until after the PPP connection is terminated, then everything
> works fine !
>
> Any comments or Suggestions ??
>
> Thanks for your time on this one !!
>
> christopher Michael
> [EMAIL PROTECTED]
>
> (Please do not say RTFM because I have, and browsed the FAq's of the
window
> managers, PPP, and the specific applications man pages. Also searched
other
> Linux Support sites for similiar problems)
>
> ------------------ Posted via SearchLinux ------------------
> http://www.searchlinux.com
------------------------------
From: Artur Swietanowski <[EMAIL PROTECTED]>
Subject: Re: Is 3Com's 3c905B NIC compatible with Linux?
Date: Mon, 26 Jul 1999 07:49:10 +0200
Chris wrote:
>
> I've got 3com's 3c905B NIC. (...)
>
> Is there any driver that I can use to enable it to work in Linux?
I have half a dozen of those, all working in Linux boxes. They all
use 3c59x modules. Since there are two NIC's per box, I compiled
them as kernel modules and load them at boot time in
/etc/conf.modules.
RedHat 6.0 supports them on install with no problems whatsoever
(was installing one such machine just yesterday).
> I've tried
> the 3c509 and the 3c59x modules (i am using redhat 6.0) but but
> gave me an error message saying that it was unable to load the
> module.
Do you set up your networking during RH install? Does it produce
errors then? Or is it an upgrade of an existing system? Could you
reproduce the exact error message? When and how does the module load?
Regards,
=====================================================================
Artur Swietanowski mailto:[EMAIL PROTECTED]
Institut f�r Statistik, Operations Research und Computerverfahren,
Universit�t Wien, Universit�tsstr. 5, A-1010 Wien, Austria
tel. +43 (1) 427 738 620 fax +43 (1) 427 738 629
=====================================================================
------------------------------
From: David Schwartz <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.apps,comp.os.linux.development.system
Subject: Re: Why not C++
Date: Sun, 25 Jul 1999 23:47:51 -0700
> > It is not the language's place to decide when you need to break the
> >rules. That's your job.
>
> Except when, like millions of C and C++ programmers, you don't know the better
> portion of the rules, so that you don't know that you are breaking them.
> Constructs along the schema of
I do not believe it is possible to create a useful tool that cannot be
misused.
DS
------------------------------
From: Artur Swietanowski <[EMAIL PROTECTED]>
Subject: Re: IP Masquerading vs. QuickTime Streaming
Date: Mon, 26 Jul 1999 08:02:04 +0200
Scott Alfter wrote:
>
> I've had a box up for a while now running kernel 2.0.36 and
> Slackware 3.6, providing net access for a small LAN using IP
> masquerading. Most stuff works fine, but an attempt at watching
> streaming QuickTime video failed. (...)
With kernel 2.2.9 I just run QuickTime over IP Masqerading with no
hint of trouble. I use RH 6.0, but I (obviously) compiled the kernel
myself, as the default one does not provide such fancy TCP-IP stuff.
Regards,
=====================================================================
Artur Swietanowski mailto:[EMAIL PROTECTED]
Institut f�r Statistik, Operations Research und Computerverfahren,
Universit�t Wien, Universit�tsstr. 5, A-1010 Wien, Austria
tel. +43 (1) 427 738 620 fax +43 (1) 427 738 629
=====================================================================
------------------------------
From: [EMAIL PROTECTED] (Glenn �sterud)
Subject: Re: Transparent Proxy - ipchains question
Date: Mon, 26 Jul 1999 06:56:53 GMT
On Sat, 10 Jul 1999 16:47:38 +0200, Raymonds Doetjes
<[EMAIL PROTECTED]> wrote:
>The masqing program keeps track of this. Just use the source ip address and
>the masq mod will deliver it back to the real source user.
>
Can you give some examples by ipchain?
Best regards, Glenn.
------------------------------
From: Jeff Silverman <[EMAIL PROTECTED]>
Subject: Re: Connecting linux-win95
Date: 26 Jul 1999 06:54:01 GMT
Monte Phillips wrote:
>
> This site has a step by step howto for complete setup of samba. steps
> for both linux and the win machine. (and they really work <G>)
> http://www.sfu.ca/~yzhang/linux/samba/index.html
> and this one as well
> http://home.talkcity.com/MigrationPath/maguai/samba.html
>
> These sites singly or in combination are nearly guaranteed to get you
> networked.
>
> <[EMAIL PROTECTED]> wrote:
> >I made a small LAN with 2 computers, one is linux box, and the other's
> >run under windows95.
> >I installed NE2000 compatable lan card on each machines and so far there
> >seemed to be no problem.
> >from both linux&win95, ping [own host] worked out!
> >ping 192.168.1.1 (from linux, IP addr. of linux : 192.168.1.1)
Dumb question - how do you know that your hardware is okay? Forgive me if this sounds
like newbie
types of issues, but as of late I've come across a lot of newbies who've ready the MS
documentation
and little else and make the following mistakes.
If you are using thinwire ethernet, make sure that the coax connects to "T" connectors
at each
machine, and make sure that the other side of the "T" connector is terminated with a
50 Ohm
terminator.
If you are using Unshielded Twisted Pair (UTP), you should be using Category 3 wire at
least (Cat 5
is recomended). Also, if you are connecting two computers together with a UTP cable,
the cable must
be "reversed" (not recomended) or else you should use a hub (recomended). If you get
a hub, pay a
few dollars more and get one with an activity indicator - that way, you can see your
packets going
over the network and thereby verify that your network cards are working properly.
Finally, and this is *really* subtle, if you have a ground fault potential of greater
than 1.5 V (AC
or DC, it makes no difference) between machines, your Ethernet will fail.
I don't think that you have a ground fault problem, because ground faults usually
cause noise and
high retransmission rates, but it's always a possibility.
Jeff
--
Jeff Silverman, PC guy, Linux wannabe, Java wannabe, Software engineer, husband,
father etc.
See my website: http://www.commercialventvac.com/~jeffs
[EMAIL PROTECTED]
------------------------------
From: Jeff Silverman <[EMAIL PROTECTED]>
Subject: Re: win 95 connection problem to Samba
Date: 26 Jul 1999 06:37:57 GMT
If I understand what you are writing, you have TCP/IP working properly on all machines
and are
struggling with NetBEUI and IPX. NetBEUI is an interesting protocol because it can
use TCP/IP as
the underlying transport and it can also be its own underlying transport, at least on
Ethernet and
LANs that look like Ethernet.
One of the things you might consider looking at is the output of nbtstat on the PCs
running Win/9x.
nbtstat -A IP_ADDRESS or nbtstat -a NETBUI_NAME are how you find what a remote
NetBEUI node name
NETBUI_NAME and IP address IP_ADDRESS are actually configured to. My hunch is that
the machines are
in different workgroups.
Be advised that there is a subtle change in networking between Windows/95 and
Windows/98 having to
do with encrypted passwords. You can have a mixed network with both clear text and
encrypted text
passwords, but you must be aware of the issue and configure for it. It ain't pretty.
Jeff
Fastlink News wrote:
>
> What ip range are you using ? have you configured samba to allow access from
> all of those ip addresses ?
>
> Windows does not automatically refresh the network neighbourhood, you need
> to go in and press f5 to refresh
>
> Why don't you configure all the pc's the use the same master browser or set
> it to automatic
>
> Regards
>
> Andrew Kenna
>
> [EMAIL PROTECTED]
>
> Roger Pang <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]...
> > Hello
> >
> > Our company has approx. 100 PCs running Win 95 / 98; 4 Novell 3.12
> servers;
> > 1 Intel Internet Station which also act as DHCP and DNS server. I set up a
> > Linux server running Samba with fixed IP address.
> >
> > My problem is only some (but not all) PCs can see the Linux box in
> 'Network
> > Neighbourhood'.
> >
> > I've checked / done the followings :
> > - All PCs are using DHCP to obtain IP address from the Intel Internet
> > Station
> > - All PCs have installed TCP/IP, IPX, and Netbeui with same workgroup
> > - All PCs can see each other on the 'Network Neighbourhood'
> > - In the Linux box, I ping the Win95 PC which can't find the Linux box -
> > successful
> > - In the Win95 PC which can't find the Linux box, I ping the Linux box -
> > successful
> > - All PCs and servers are on the same sub-net mask.
> > - I don't understand but I found the 'Network Neighbourhood still showing
> > the name of some PCs which I switched off for an hour already.
> >
> > I guess the problem may come from different PCs using different Master
> > Browser List because :
> > - for PCs which successfully connected to Linux, it takes more than 5
> > seconds to wait in order to obtain to the browse list
> > - for PCs which failed connected to Linux, it takes only 2 seconds to
> obtain
> > the browse list
> > - the 'successful and the 'failed' PC are connected to the same hub
> >
> > Anyone can help ?
> >
> >
--
Jeff Silverman, PC guy, Linux wannabe, Java wannabe, Software engineer, husband,
father etc.
See my website: http://www.commercialventvac.com/~jeffs
[EMAIL PROTECTED]
------------------------------
From: "Jochen Dachauer" <[EMAIL PROTECTED]>
Subject: squid
Date: Mon, 26 Jul 1999 08:39:46 +0200
hello
i use the proxy-server squid. if i want to
reach a ftp-site with a password question
squid can not answer this.
what can i do. which squid.conf-entrance
must i change?
thank you very,
jochen
------------------------------
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End of Linux-Networking Digest
******************************
