Linux-Networking Digest #875, Volume #11 Mon, 12 Jul 99 19:13:27 EDT
Contents:
Ethernet Routing: ping works one way but not back! (Graham Harris)
Re: NFS problems in Redhat Linux 6 (Allen Ashley)
Re: Proxy Server w/ Username Authentication. (Nick)
Re: mandatory proxy / squid problem ("Holger van Koll")
Re: IP fragments sent in reverse order? ([EMAIL PROTECTED])
Re: DNS as root works, no DNS as reg. user? (a)
little how-to on RH6.0 home networking (Martin Ewing)
Re: No Network Access (Shice Beoney)
IP version (mango)
info on ping between win98 and linux ("Marco Vranken")
Re: connecting two networks w/o a router?? ("Cliff")
Re: Token Ring on Redhat LINUX 6.0 (Marty Griffith)
Re: Linux Win98 Networking Problems!! ([EMAIL PROTECTED])
----------------------------------------------------------------------------
From: {$graham$}@microphoneDOT.prestel.co.uk (Graham Harris)
Subject: Ethernet Routing: ping works one way but not back!
Date: Mon, 12 Jul 1999 21:06:49 GMT
Folks,
B can ping A or B. C can ping B using either of B's IP addresses. When C tries
to ping A, A's lights flash just the same way as when B pings A; but C just
gets a timeout message.
A B C
ISDN PBX Redhat Linux 5.0 (2.0.32) Win95
eth0 ne2000 eth1 ne1000
192.168.42.1 192.168.42.100 10.0.2.100 10.0.2.166
10baseT 10baseT 10base2 10base2
(I hope the diagram works for you. It does for me, 78-wide with a fixed-pitch
font. But then, I can understand my children and you can't).
Since A is clearly receiving C's pings, it seems to me that the cause is
likely to be that B is not forwarding A's responses on to C. Why?
B has static routes set up:
[root@prm /root]# netstat -nr
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
10.0.2.0 0.0.0.0 255.255.255.0 U 1500 0 0 eth0
10.0.2.0 10.0.2.100 255.255.255.0 UG 1500 0 0 eth0
192.168.42.0 0.0.0.0 255.255.255.0 U 1500 0 0 eth1
192.168.42.0 192.168.42.100 255.255.255.0 UG 1500 0 0 eth1
127.0.0.0 0.0.0.0 255.0.0.0 U 3584 0 0 lo
0.0.0.0 10.0.2.100 0.0.0.0 UG 1500 0 0 eth0
To me these look as if B is set up to route both ways properly.
IPv4 Forwarding is on. Dual cards are enabled via /etc/conf.modules. The LAN
cards are on seperate (unique) IRQs and their io ranges don't overlap with
each other or anything else. One, of course, is 16-bit and the other 8-bit but
the ne driver seems to identify each correctly.
Bridging is not enabled in the Kernel (I've not yet been able to rebuild the
kernel because of make "No rule to make target 'config'" errors- that's
another story). Do I need it?
I told C that B is a gateway. There's nothing I can change at A until I can
talk to it with C! A's only user interface is through Win95 software and the
10baseT port!
Any ideas?
--
Graham Harris
Equinus- Today's Business & Technology Consultancy for the Travel industry
http://www.equinus.com
------------------------------
From: [EMAIL PROTECTED] (Allen Ashley)
Subject: Re: NFS problems in Redhat Linux 6
Date: 12 Jul 1999 21:46:31 GMT
"Ricky J. Sethi" <[EMAIL PROTECTED]> writes:
>... the last response I got from him was to check my BIOS' APM
>settings??!?!?!)
OK, you win RedHat support loses. APM settings, really?
------------------------------
From: Nick <[EMAIL PROTECTED]>
Crossposted-To: redhat.networking.general,redhat.servers.general
Subject: Re: Proxy Server w/ Username Authentication.
Date: 12 Jul 1999 21:30:58 GMT
Nick wrote:
> I am insearch of a proxy server that does Username authentication as
well
> as IP based Auth., If anyone has information about such a Server, please
> reply. If the server only did Username Auth, that would also Suffice.
>
> ------------------ Posted via SearchLinux ------------------
> http://www.searchlinux.com
Still searching, anyone know of such a beast?
================== Posted via SearchLinux ==================
http://www.searchlinux.com
------------------------------
From: "Holger van Koll" <[EMAIL PROTECTED]>
Subject: Re: mandatory proxy / squid problem
Date: Mon, 12 Jul 1999 22:55:46 +0200
David Kennedy schrieb in Nachricht
<[EMAIL PROTECTED]>...
>I have a connection to the internet which has a mandatory proxy
>requirement. (ie port 80 out is blocked unless you use there proxy
>server).
>
>I am OK with this.
>
>My problem is that I have a linux box (RH6.0) and want to hook
>machines up behind it and use the internet.
>
>I have installed squid, edited the squid.conf file, setup
>parenting....
>
>This actually seems to work as my squid access log has entries to it.
>
>The problem is, the machine behind the linux box takes a very long
>time to bring up a page.
>
>Squid recognizes the parent:
>
>Jul 7 22:49:14 WIZZO squid[616]: Configuring Parent
>ISP_PROXY_SERVER/80/80
>
>
>But I have these in /var/log/messages
>
>Jul 7 22:59:01 WIZZO squid[616]: comm_udp_sendto: FD 38,
>IP_OF_ISP_PROXY_SERVER, port 80: (1) Operation not permitted
>
>Originally, I thought it was a problem with my firewall, but it seems
>squid is the one generating the logs
>
>I also can not explain why the web page is eventually loads but takes
>a very very long time.
>
>Any ideas?
I would try to turn off all icp-stuff. But dont know if that will help you,
just give it a try
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: IP fragments sent in reverse order?
Date: 12 Jul 1999 20:35:31 GMT
Phil DeBecker <[EMAIL PROTECTED]> wrote:
> Since you're running a packet filter, you should definitely compile the
> kernel with the IP_ALWAYS_DEFRAGMENT option turned on. This will force the
> stack to defragment packets before they are screened by the packet filter.
> Otherwise you stand to lose data, as seems to be the case here.
Phil,
I just discoverd that. I had ALWAYS_DEFRAGMENT turned on on my client
so reading NFS data went fine. But writing failed since with the new
2.2.x firewall code fragments have to be taken care of with their own
rules. Since I have a default policy of DENY, I have to add extra rules
that let the outgoing fragments pass through.
So you are not exactly right with your suspicion but that would have led
my on the right way.
Thanks Phil!
But do you know why those fragments are sent in reverse order? Since there
is a bit that specifies whether there are trailing fragments this is not
necessary at all..?
--
Daniel Dorau [EMAIL PROTECTED]
<< If a train stops at a trainstation, what happens at a workstation? >>
PGP key available, send mail with 'Subject: send pgp key'
fingerprint: 8D7E0B2F9E2E5338 DB7B24742E8B2EAE
------------------------------
From: a <[EMAIL PROTECTED]>
Subject: Re: DNS as root works, no DNS as reg. user?
Date: Mon, 12 Jul 1999 21:08:39 GMT
root wrote:
>
> I feel silly asking this question, but here goes:
>
> DNS works fine when I'm logged in as root, (I'm using pppd,
> started by root, to connect to my isp). I can browse, email, etc.
> However, as an ordinary user I can't do dns lookups. I can
> ping hosts using their ip addresses, but dns queries fail.
>
> any suggestions? I recently re-installed everything on my system,
> and i'm now running redhat 6.0 w/ a 2.2.9 kernel. Everything
> worked fine under rh 5.2
>
> I checked out dejanews and I read the howto's before posting this.
> If anyone has any ideas about this, please drop me a line at
> [EMAIL PROTECTED], or post it to this newsgroup. Thanks!
yeah, it was exactly what you guys said it was...
the /etc/resolve.conf file's permissions were set incorrectly.
thanks for the tips!
------------------------------
From: Martin Ewing <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,yale.users.linu
Subject: little how-to on RH6.0 home networking
Date: Mon, 12 Jul 1999 17:38:10 -0400
I have recently got Red Hat 6.0 working with demand dialing,
masquerading, DHCP, and other goodies necessary for the modern home
network. Thanks to several comp.os.linux people for help along the way.
You can get some tips on this, but not a full tutorial, at
http://www.eng.yale.edu/it/doc/home-net.html.
Enjoy.
--
Martin Ewing, Information Technology Office
Faculty of Engineering, Yale University
203-432-4243 -- 203-432-9042 (fax)
http://www.eng.yale.edu/it/
------------------------------
From: [EMAIL PROTECTED] (Shice Beoney)
Crossposted-To:
alt.linux,alt.os.linux,alt.uu.comp.os.linux,alt.uu.comp.os.linux.questions,comp.os.linux.setup
Subject: Re: No Network Access
Date: Mon, 12 Jul 1999 21:49:12 GMT
On Wed, 7 Jul 1999 07:07:04 -0400 in comp.os.linux.setup, "Snugger"
<[EMAIL PROTECTED]> uttered the following profound gem of wisdom:
>I have a problem with my AcerPower 6100 desktop. I have Redhat Linux 2.0
>installed on with the default workstation configuration. Everything seems to
>load properly at boot-time but I can't access anyone on my company's
>network. I tried the following:
>
>-looking for errors on loading of the 3c509.o module - found none
>-checking the configuration of the network card - IRQ 10, I/O port 0x300
> (note under win98 the IRQ is 11 and the I/O port is 0x310; the machine
>is set to dual boot).
That sounds like your problem right there. I have a 3Com 509b ethernet
card and when I first set it up, there was a discrepancy between the
IRQ in Linux and the IRQ in Windows. How I fixed it was to first enter
my CMOS settings (bios) on startup, and change IRQ 10 from Plug & Play
to ISA Legacy Device. Then, I saved the settings, exited the bios, and
went into windows. From the Control panel, I then went into the device
manager (the second tab in the System screen), selected my card from
Net Work Adapters, checked its properties, then clicked on the
resources tab, unchecked "use automatic settings", selected the
interrupt request value, and clicked Change Setting. I then changed
the value to 10, rebooted, booted linux, and tried a ping to see if it
was working, and it was.
If this doesn't work for you, then you'll most likely have to disable
the card's plug and play feature. You can do this with utility
obtainable from 3Com's ftp site, although I don't have the filename
and location offhand. I'm sure I've seen it posted to this NG before,
so if you need it you could probably just do a power search in
DejaNews for www.3com.com
HTH!
Feel free to e-mail me if you have any more problems.
<snip>
--
"Ma cheri... Wait, she'll hate that, she hateth it when I write in
French. I usually conduct my correthpondence in fag, but it'th amazing
how often they're the thame thing!" -Scott Thompson as Buddy Cole the
drag queen, The Kids In The Hall
------------------------------
Date: Mon, 12 Jul 1999 18:20:44 -0400
From: mango <[EMAIL PROTECTED]>
Subject: IP version
what IP version does RH 6 ship with?
------------------------------
From: "Marco Vranken" <[EMAIL PROTECTED]>
Subject: info on ping between win98 and linux
Date: Mon, 12 Jul 1999 23:51:22 +0200
Hello,
I want to be able to ping between win98 and linux,
but unfortunately, this doesn't work yet. So here is my configuration:
Windows98 pc : 192.168.17.42
Linux pc 192.168.17.1
And I want the linux pc to be the server, and win98=client.
No modems are involved. Each pc has a D-LINK 220CT ethernetcard. These two
pc's are connected
via a coax cable provided with the necessary terminators.
My Windows network configuration (Control Panel/network icon) :
There are three tabs
1)Configuration
2)Identification
3)Access
1)Configuration
======================
the primary network announcement = client for microsoft networks
In this window, there are 5 items visible
1)a pc icon = client for microsoft networks
properties:
- I marked 'announcement for WIN NT domain , is this
correct?????
- Windows NT domain = shoenux
- announcement options for the network =fast
announcement .....
2)a card icon=external adapter (not necessary for my network)
nothing filled out
3)a card icon=my network card NE2000 compatible
properties
- first tab = enhanced modus 32 and 16 bits ndis
stuurprogramma (is this correct?????)
- second tab = bindings = I marked TCP/IP > NE2000
compatible
- third tab = sources
configuration type = present configuration
IRQ = 9/2 (no conflicts!!!)
IO = 300-31F
4)a protocol icon =TCP/IP > external adapter
nothing filled out
5)a protocol icon =TCP/IP > NE2000 compatible
- IP address tab
give own IP adress :
IP address 192.168.17.42
subnet = 255.255.255.0
- WINS configuration tab
wins conversion is marked
primary winserver = 192.168.17.1
the field range-id is empty
- DNS and GATEWAY tab or completely empty so not used.
- NETBIOS tab > is marked but I am not able to change
it
- Advanced tab
properties = none
to set protocol as standard protocol is not
marked
- Bindings tab
client for microsoft networks is marked.
2)Identification
=====================
computername = pentium
workgroup = WORKGROUP
description of the pc = Marco Vranken Client
3)Access
==============
accessibility on share level is marked.
****************************
Accordingly, I have filled out all the linux files (via NET3-HOWTO =
networking guide)
So first I start up the linux server.
Next, I start up the win98 PC. Then I can log in
user =guest
passwd= (I don't use a user id, so I leave this empty, also adapted in
linux configuration)
domain=shoenux
Then after a while, the login is not successull.
I try to ping between two pc's but this does not work.
So here another question:
Is SAMBA required just for PINGing between two pc's???
In case it is, I already installed it.
But two deamons must run in order to let samba work nicely
These deamons are called smbd and nmbd.
You can check this via command
ps aux | grep smbd
ps aux | grep nmbd
I see here that smbd is found but the status is sleeping (STAT=S), I guess
this has to be a R = running?? Am I right??
I DO NOT FIND nmbd via the appropriate command. So nmbd is not running or
sleeping at all.
I checked my /etc/rc.d/init.d/smb and everything is there.
echo -n "Starting SMB services"
/usr/sbin/smbd smbd -D
/usr/sbin/nmbd nmbd -D
So in resum� I need answers on following questions:
1)Are my windows98-settings correct in assumption my linux settings are???
2)Is Samba required for PINGing between win98 and linux???
3)Must smbd have STAT=R??
4)How can I get my nmbd run??
Kind Regards, Marco Vranken
------------------------------
From: "Cliff" <[EMAIL PROTECTED]>
Crossposted-To: comp.protocols.tcp-ip
Subject: Re: connecting two networks w/o a router??
Date: Mon, 12 Jul 1999 22:28:59 GMT
A gateway generally refers to a device that performs a low-level protocol
translation, like X.25 to TCP/IP or SMTP to ccMail. A router is a
multihomed device that performs a TCP/IP routing function to connect two
networks. A bridge is a multihomed device that interconnects two networks.
However, a bridge does not route traffic. I believe all these terms are
defined somewhere in the IP RFCs; 791, 950, 919, 922 or perhaps 1042
(Ethernet).
--
-Cliff
Views expressed are my own and not necessarily those of my employer
Concordia Net, Inc. When replying via email please use; cwheat at concordia
dot net not
root@localhost
------------------------------
Date: Mon, 12 Jul 1999 18:18:29 -0400
From: Marty Griffith <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: Re: Token Ring on Redhat LINUX 6.0
Hi Boyd.
I have heard that the version of the driver support for ibmtr did not
work correctly with the shipped version of RedHat 6.0. If you update the
kernel to 2.2.8 this should help in addition to the following:
All docs I have read say that PCI support on Token Ring cards does not
work. After many agonizing attempts to get a IBM PCI card going, I have
to agree. I was however able to get two cards to work properly:
IBM Auto 16/4 adapter II (ISA) and the IBM Turbo ISA Token ring adapters
to run on RedHat 5.2:
For the Turbo tr driver to work, you must use LANAID program on the
diskette shipped with card to put it in MANUAL configuration only (no
plug and play allowed here!). You then must set a static IRQ and I/O
address (IRQ 10, I/O x0A20 worked well).
For the Auto 16/4 to work, I recommend setting the Dip switches to IRQ
10, I/O x0A20 as well.
Start with the Kernel Daemon configuration utility
Add
tr0 ibmtr I/O=0xA20
Next the Network Configuration:
Interface
tr0 ip.addr prot=none atboot=yes active=yes
Routing
default gateway device=tr0
Finally, the linuxconf utility, under Basic Host Configuration, I set
adapter one as:
- enabled
config - manual
prime name = your.domain.name
Ip address=your.ip.address
netmask=your.ip.mask
net device=tr0
Kernel module=ibmtr
I/O port=0xA20
Irq= (leave blank!!!) **
** I found that if you add any parms other than I/O port to this driver,
it does not work.
Save and activate changes.
Hope this helps.
Marty Griffith
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Linux Win98 Networking Problems!!
Date: Mon, 12 Jul 1999 22:10:38 GMT
Problem solved I downloaded new tulip driver from:
http://cesdis.gsfc.nasa.gov/linux/drivers/tulip.html
re-compiled and now works like a bought one !!
In article <7m9s36$rdo$[EMAIL PROTECTED]>,
[EMAIL PROTECTED] wrote:
> I'm having a similar problem.
> I'm using the tulip driver on my Kingmax GFA7000 PCI Ethernet card
> I not the crossover cable is working because I dual boot between linux
> and Win98 and the network is A-OK.
> I also notice that when I display the ARP table the H/W mac address
> displays "in-complete" what-ever that means.
> This must be either a driver prob/bug and/or TCPIP config.
> I find it hard to believe with a simple route table and IP config
> that its not working.
>
> How does one debug these problems?
> Let us know of you find out what the problem is...
> Paul
>
> In article <[EMAIL PROTECTED]>,
> "Brendan O'Neill" <[EMAIL PROTECTED]> wrote:
> > hi,
> > I had exactly the same problem.
> > I was using an SMC ehternet card. I swapped it with a 3com card and
> the
> > problem remained, but the 3com card allowed me to disable shared
> memory.
> > Once I did this, it worked fine.
> > Good Luck
> >
> > Brendan
> >
> > Richard <[EMAIL PROTECTED]> wrote in message
> > news:[EMAIL PROTECTED]...
> > > Rafo wrote:
> > >
> > > > Hello:
> > > > I am attempting to network a win98 box with a linux system. All
> I am
> > > > trying to do, is to run Apache HTTPD on the Linux box and access
> it from
> > > > the win98 system so I can test CGI scripts.
> > > >
> > > > I am attempting to connect them using ethernet cards. I have
> assigned
> > > > the following IP addresses:
> > > > WIN98 IP:192.168.1.110 Mask:255.255.255.0
> > > > Linux: IP:192.168.1.100 Mask:255.255.255.0
> > > >
> > > > The linux system boots up with out a problem, it detected the
> ethernet
> > > > hardware ok. I have the hosts file properly structured,
netestat
> looks
> > > > ok. At the linux box, when I ping for localhost and for
> 192.168.1.100
> > > > there are no problems, all packet sent are received. However,
> when I
> > > > ping for the win98 system (192.168.1.110) I get no reply. At
the
> win 98
> > > > system I can ping both localhost and 192.168.1.110 but I can't
> ping the
> > > > linux box. In other words, the systems are not able to talk at
> all. I
> > > > have connected them using a crossover (NULL) cable as suggested
> in the
> > > > Ethernet-HOWTO.
> > > >
> > > > This has to be a simple problem to fix. Please, someone come to
> the
> > > > rescue!!
> > > >
> > > > Thanks in advance.
> > > >
> > > > RA
> > >
> > > hello,
> > > have you tried going into network icon in control panel(on
win98box)
> > > clicking on file and printer sharing and checking both boxes????
> then have
> > > to hit ok and then ok again and click yes to restart.
> > > i fought that on my linux/win98 hybrid network until it dawned on
> me three
> > > hours later, also make sure hard drive on win98 is shared.
> > > if this doesnt work i have another idea. so email me back if it
> doesnt
> > > work...
> > > [EMAIL PROTECTED]
> > >
> >
> >
>
> Sent via Deja.com http://www.deja.com/
> Share what you know. Learn what you don't.
>
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
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End of Linux-Networking Digest
******************************
