Linux-Networking Digest #320, Volume #11 Fri, 28 May 99 19:13:42 EDT
Contents:
Best ethernet card for linux (Tim Kelley)
Re: PPP and a stupid person (Clifford Kite)
Deactivating promisc(ious) setting & SIOCADDRT err (Arthur Rinkel)
Changing networks on a laptop... ("Geoffrey L. Goetz")
DNS caching (Gutrot)
Re: RH 6.0 + Cable Modem using DHCP - I just want to die... (You Wish)
Name Resolution Problem (Chad Thomas)
Re: DHCP Problems (You Wish)
Re: LCP: timeout sending Config-Requests PPP FAILURE! Follow-up (Clifford Kite)
Re: Modemcard under Linux/KDE (Hugues-Antoine Suin)
Re: ROOT-access and SSH-login (Nicholas E Couchman)
Re: AOE Game + IP Masq (Stephen Hammond)
Re: Can't see server until server sees me (Monte Phillips)
Re: Telnet problems (Stephen Hammond)
Re: Hiding a class C between two real class C's. Can it be done?
([EMAIL PROTECTED])
----------------------------------------------------------------------------
From: Tim Kelley <[EMAIL PROTECTED]>
Subject: Best ethernet card for linux
Date: Fri, 28 May 1999 16:05:25 -0500
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I've been using 3Com, but I was wondering if there were any high end
cards or load balancing cards that are supported under linux. Does
anyone know of any?
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------------------------------
From: kite@NoSpam.%inetport.com (Clifford Kite)
Subject: Re: PPP and a stupid person
Date: 28 May 1999 10:10:25 -0500
Daniel M Smith ([EMAIL PROTECTED]) wrote:
: I am having trouble setting up my ppp and associated files
: the chat script works fine, dials my ISP, answers OK, logins
: in and ppp is started on the ISP machine OK. Output from the
: ifconfig and netstat below i think show this.
: pinging the ISP using the IP address found in the netstat output
: responds correctly but pinging any other address fails and ftp,
: telnet and other programs can't open any address.
<snip>
: # netstat -nr
: Kernel IP routing table
: Destination Gateway Genmask Flags MSS Window irtt
: Iface
: 203.56.11.17 0.0.0.0 255.255.255.255 UH 1524 0 0
: ppp0
: 127.0.0.0 0.0.0.0 255.0.0.0 U 3584 0 0
: lo
No default route for the PPP interface. Add the pppd defaultroute option
in the tig script.
: #########################################################################
: # ping 203.56.11.17
: PING 203.56.11.17 (203.56.11.17): 56 data bytes
: 64 bytes from 203.56.11.17: icmp_seq=0 ttl=255 time=181.7 ms
: 64 bytes from 203.56.11.17: icmp_seq=1 ttl=255 time=140.0 ms
: --- 203.56.11.17 ping statistics ---
: 2 packets transmitted, 2 packets received, 0% packet loss
: round-trip min/avg/max = 140.0/160.8/181.7 ms
--
Clifford Kite <kite@inet%port.com> Not a guru. (tm)
/* A salute to Inspector Baynes, of the Surry Constabulary, the only
police Inspector to ever best Mr. Sherlock Holmes at his own game.
"The Adventure of Wisteria Lodge", by Sir Arthur Conan Doyle. */
------------------------------
From: Arthur Rinkel <[EMAIL PROTECTED]>
Subject: Deactivating promisc(ious) setting & SIOCADDRT err
Date: Fri, 28 May 1999 23:12:13 +0200
Hello,
Today I discovered that a setting named PROMISC(ious?) is activated on one
of my ethernet cards. Since then there seems to be a continueous flow of
packets over this card (I check that with wmifs) and my system *seems* to
be slower. I don't know but could that setting slow down performance? How
do I deactivate it? (I already tried: ifconfig eth down/up; ifconfig
-allmulti; ./init.d/network restart.)
Other thing: when I shutdown the network 'stuff'
(/etc/rc.d/init.d/network stop) and restart it again I get the error
SIOCADDRT: Invalid argument. What is the a problem here? If so, how to
fix it?
(Brings me to another (off-topic) question: I tried to use the (bash) cmd
'set -v' and 'set -x' to output the read lines and exec cmd's in the hope
it would 'debug' the network script, but that didn't work. Is there a
(simple) way to 'debug' a script?)
Greetz, Arthur
------------------------------
From: "Geoffrey L. Goetz" <[EMAIL PROTECTED]>
Subject: Changing networks on a laptop...
Date: Fri, 28 May 1999 15:59:43 -0400
I was wondering if there was a better way to accomplish the following.
I need to reconfigure my laptop's network configuration (preferably
without re-booting) depending on which location I am at. Here is what I
am currently doing...
ifconfig eth0 down
echo myhost > /etc/HOSTNAME
echo 127.0.0.1 localhost > /etc/hosts
echo 10.15.22.23 myhost.mydomain myhost >> /etc/hosts
echo domain mydomain > /etc/resolv.conf
echo search mydomain >> /etc/resolv.conf
echo nameserver 10.15.1.99 >> /etc/resolv.conf
echo nameserver 10.15.1.98 >> /etc/resolv.conf
ifconfig eth0 10.15.22.25 netmask 255.255.0.0 up
route add default gw 10.15.1.1 eth0
This seems to be pretty straight forward and does allow me to quickly
switch from one network to another with my laptop. But sometimes i have
to re-boot for the edits to the /etc files to 'stick'.
Is there a better way???
------------------------------
From: Gutrot <[EMAIL PROTECTED]>
Subject: DNS caching
Date: Fri, 28 May 1999 21:23:01 GMT
I was wondering if it's possible to have a nameserver not cache an IP
address. I have a dynamic IP from my ISP and am having a problem
dynamically mapping a hostname from my friends domain to it.
It works.. but all the other nameservers on the net are caching the IP
address... and when I log on again with a different IP, nameservers are
using the cached one instead.
Is there a flag I can set in named to stop other servers from caching?
Any ideas?
Thanks,
-Gut
========================================================================
Build a system even a fool can use, and only a fool will want to use it.
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: [EMAIL PROTECTED] (You Wish)
Crossposted-To: linux.redhat.install
Subject: Re: RH 6.0 + Cable Modem using DHCP - I just want to die...
Date: Fri, 28 May 1999 21:39:47 GMT
On Thu, 27 May 1999 22:37:12 +0000, "Michael T. Bird" <[EMAIL PROTECTED]>
wrote:
>Marc,
>
>I had similar problems after upgrading to RH6.0. As
>someone else already pointed out, RH replaced the
>dhcpcd call in /etc/sysconf/network-scripts/ifup
>with pump which doesn't seem to work. Try issuing
>the dhcpcd command manually. If this gets you connected
>replace the pump calls in ifup and ifdown with the
>appropriate dhcpcd commands. My files look like this:
Well, too all who answered:
The problem wasn't with Linux, it was related to the fact that I did not RESET
my cable-modem between my last boot with NT and my Linux installation/reboots.
It seems, for some reason, that when one DHCP request has been made (by NT or
Linux), all other requests must ask for the same address or else the modem
need to be reset (this is only true for LINUX, NT works fine anyway).
For me, it means that after booting NT, I have to reset the cable-modem in
order for it to work with Linux. Once booted in Linux, I can reboot Linux as
many times as I want without having to reset the modem. If I reboot to NT, I
have to reset the modem before booting back in Linux...
It seems like the change of IP address is not fully handled by Linux. Let's
say you boot in NT and get address 1.2.3.4, when you boot in Linux, PUMP
or dhcpcd request the address that it last requested by looking in its cache,
if this address is 5.6.7.8 then I get the address (eth0 is configured OK) but
it looks like the modem was not informed and the routing doesn't work (my
packets do not come back to me nor can my ISP ping me with 5.6.7.8). If I
reset the modem then ifdown/ifup everything works fine! After that, rebooting
in Linux works OK because 5.6.7.8 is always requested by dhcpcd (unless you
clear the cache).
The weird thing is that NT seems to "update" the modem properly because
booting back in NT works without resetting the modem...
There's a good chance I'm missing something here but this is what I found so
far... Any comments would be appreciated.
BTW, this is true for both PUMP and dhcpcd. I was running PUMP (base RH 6.0
install) and it was working. Since there is an update avail. for PUMP I
installed it but after that PUMP would not work!!! I couldn't get an IP from
my ISP anymore (duh!). So in light of what you guys suggested, I installed
dhcpcd and modified the ifup/ifdown scripts. Now it works.
Because I want my hostname and the "search" field in resolv.conf to be
dynamically set depending on my IP, I also changed ifup-post and
network-functions.
Thanks to all who answered!
Marc
------------------------------
From: Chad Thomas <[EMAIL PROTECTED]>
Subject: Name Resolution Problem
Date: Fri, 28 May 1999 16:41:58 -0500
I've been trying to link up my Linux box to the school LAN via ethernet
and I can't get my Linux box to access resources by domain name (ie. ping
computer.school.edu). I can access anything via IP number, and nslookup
works fine. I'm running through a gateway, and a traceroute has the first
packet stall at the gateway for 1200 ms, after which it turns around all
packets in 4 ms time. Furthermore, I noticed that I'm getting a really
high packet error rate when I run ifconfig.
I don't know if any of these are related, but I can't seem to figure out
what's wrong after reading all of the HOWTO's I can think of.
Details on my box:
Pentium 120 laptop running 2.2.9
PCMCIA 10/100 ethernet card
Any ideas would be appreciated.
Thanks in advance,
Chad
**************************************************************************
* "For the wages of sin is death, but the gift of God is eternal life in *
* Christ Jesus our Lord" (Romans 6:23) *
* *
* Do you know where you're going? *
* *
* Chad Thomas www.students.uiuc.edu/~cbthomas/ *
**************************************************************************
------------------------------
From: [EMAIL PROTECTED] (You Wish)
Subject: Re: DHCP Problems
Date: Fri, 28 May 1999 21:44:02 GMT
On Thu, 27 May 1999 03:35:16 -0500, "Nanobot" <[EMAIL PROTECTED]> wrote:
>i got a dsl connect with swbell. using rh6 with ne2k-pci on eth0. No IP can
>be established. Others are up with linux, but i get nothing. any ideas?
>i did get the new rpm from rh still nada
Try to disable PUMP and install dhcpcd. On my system the base version of PUMP
worked, the update didn't and dhcpcd is working just fine. I don't know much
about ADSL modems but if you dual-boot, you might want to reset your modem
before booting back in Linux...
I suggest you read the "RH 6.0 + Cable Modem using DHCP..." thread... A few
things where pointed out that might help you.
Good luck!
Marc
------------------------------
From: kite@NoSpam.%inetport.com (Clifford Kite)
Subject: Re: LCP: timeout sending Config-Requests PPP FAILURE! Follow-up
Date: 28 May 1999 16:58:16 -0500
Brandon Edens ([EMAIL PROTECTED]) wrote:
: Sorry to followup on my own post (so tacky) but I've made a bit of an
: error which has probably been affecting my connection alittle bit. I
: upgraded pppd to 2.3.8-1 without altering the kernel. I just
: reinstalled the old package and as you will see that the kernel errors
: have disappeared. Here is an updated /var/log/messages file that
The messages look the same except that the errors are gone, things are
in good order, and it now shows the restoration of terminal parameters
at the end when the PPP is taken down after the 10 LCP requests fail.
: I feel like a moron but the lesson has been learned. Sorry for the
: wasted bandwidth but I thought it best to clear this up before a waste
: of brainwidth.
Thanks, although it didn't come in time to prevent a waste of brainwidth
(I like that) but did come in time so I didn't have to admit that I
didn't know quite how the errors came to be generated but that it looked
like a really nasty problem.
There should be more pppd messages somewhere, here it's /var/log/debug.
The /etc/syslog.conf directs the messages to various files so if
you can't find them then look in there to see where various things
are going. Should there be no other pppd messages in any of the files,
then configure /etc/syslog.conf along the lines suggested by Bill Unruh.
I'd still like to see them with kdebug 7 so we'll know whether there
are fcs errors present. Once that is established one way or the other
the kdebug 7 can be removed since it does make things harder to read.
I am inclined to agree with Bill since you solved the case of the
strange errors, the next step should be configuring for PAP or CHAP
or both. Once you've done it for PAP then CHAP is easy, you just copy
the /etc/ppp/pap-secrets file to /etc/ppp/chap-secrets.
--
Clifford Kite <kite@inet%port.com> Not a guru. (tm)
/* 97.3% of all statistics are made up. */
------------------------------
From: Hugues-Antoine Suin <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Crossposted-To:
alt.uu.comp.os.linux.questions,comp.os.linux.hardware,comp.os.linux.setup
Subject: Re: Modemcard under Linux/KDE
Date: Fri, 28 May 1999 21:39:53 +0000
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Brian Wallace wrote:
>
> On Thu, 20 May 1999, Florian Thiel wrote:
> > I'm new at linux. Its very good, but I've problem with my modem card. It's
> > an ISA-Card under Win98 at COM2:. Only Linux want detect it.
> >
> It's likely a Plug and Play (PnP). Most current versions of Linux have
> isapnp to take care of this. Try typing
> pnpdump >isapnp.conf
> Then edit isapnp.conf to setup your modem card, put it in /etc
> and add
> /sbin/isapnp /etc/isapnp.conf
> in one of the startup files (/etc/rc.d/rc.S right after swapon line).
> That's what I do with Slackware it may be a little different for you.
I have the same problem with a ISA MT5634ZPX MultiTech card that appears
well in pnpdump. But I have no idea how to setup it there: which IRQ, I/O,
port to chose? Should I use the same as in Windows?
Thanks in advance.
--
Hugues-Antoine Suin
http://wwp.icq.com/38501472
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------------------------------
From: Nicholas E Couchman <[EMAIL PROTECTED]>
Subject: Re: ROOT-access and SSH-login
Date: Fri, 28 May 1999 21:39:42 GMT
Remote logins (meaning that you are not sitting at the console), are
disabled for user ids under 10. Since the root user id is 0, remote
access for the root user is not allowed. I don't believe there is anyway
to change this. You can, if you know the root password, do the
following:
1)Login in using a normal userid
2)type the command : 'su root'
3)you will be prompted for the root password. Enter the password and you
are given root permissions. This means you can install, uninstall, start
/sbin programs, do everything the root can do, except check the root
email. You have to be sitting at the console logged in as root to read
and check root email.
I hope this helps!!
--Nick
[EMAIL PROTECTED] wrote:
> Hello!
>
> I have two questions. I were very happy, if somebody could help me!
>
> RedHat Linux 6.0
>
> Current situation:
> *Normally root has no login-access (except console)
>
> How to setup these things?:
> *root access only for one machine (cs2, eth2, 192.168.2.1) in the
> local network and no other!
> *e-mail client (on cs2, and only on cs2) should have access to root's
> mail over POP3 (other accounts access are ok, ipop3d is running).
>
> Current situation:
> *SSH (Secure Shell) connection is not possible...
>
> How can I enable:
> *SSH for all users
>
> I tried various things... but could not solve these two problems.
>
> Thank you in advance!
> Sincerely
> Erkan
>
> PS: If you reply, please write a copy to my e-mail-address, too...
------------------------------
From: [EMAIL PROTECTED] (Stephen Hammond)
Subject: Re: AOE Game + IP Masq
Date: Fri, 28 May 1999 19:08:00 GMT
Reply-To: [EMAIL PROTECTED]
On Wed, 26 May 1999 01:54:56 -0400, "Matt Goebel"
<[EMAIL PROTECTED]> wrote:
>Hi,
>Anyone out there get games like AOE to work over a masqueraded internet
>connection? I'd prefer to host on the online gaming zone but I'm not sure
>this is possible? It's launched via a webpage. I've also got a firewall up
>that blocks out all unusual ports that these games may be using. So if
>anyone knows what ports any of the popular games are using please post them
>so I can alter my firewall to allow connections on these ports. Thanks
>
>
Here is a URL for a site dedicated to supporting gaming through a NAT
box.
http://users.nais.com/~nevo/masq/
The info found at the web site is word-for-word the same as the first
reply to your message.
Regards,
-Stephen Hammond
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Monte Phillips)
Subject: Re: Can't see server until server sees me
Date: Fri, 28 May 1999 22:04:56 GMT
I have a somewhat similer prob. Linux server w/3com509b in it and
winbox with a Linksys card. In order to connect the 3com HAS to be
first online. If the win boots first, no net. Don't know if this
helps or is your prob, but you might try firing up the server and
getting it started, at leat to login point, before turning on
workstations.
Solution live with it, or get a new card to replace 3com heheh I am
cheap.
g'Luk
>Scottaii wrote:
>
>> I have an ethernet network of Windows clients and a Linux (Red Hat 5.2) server,
>> plus another RH5.2 machine. All the machines can ping each other, except none
>> can ping the server until the server pings them. I've set a script running to
>> ping each machine in turn, since after some time period of inactivity, the
>> server can't be pinged again. Is there something running on the server that
>> might be causing this?
>>
>> TIA, Scott
>
>
------------------------------
From: [EMAIL PROTECTED] (Stephen Hammond)
Subject: Re: Telnet problems
Date: Fri, 28 May 1999 22:22:53 GMT
Reply-To: [EMAIL PROTECTED]
On Fri, 28 May 1999 21:09:25 +0100, "Hugh Saunders"
<[EMAIL PROTECTED]> wrote:
>Hi folks.
>
>I have a problem getting Telnet to work, so here is my set-up and problem;
>please help!
>
>I have a windows PC that I want to connect to my new Linux server. The Linux
>box is running RedHat Linux 6, with an ethernet NIC. TCP/IP is working on
>both computers, since each can ping the other, and I can FTP to the Linux
>box from the WinPC.
>
>However, I cannot telnet on the Linux box from Windows. Telnetd is running,
>since under Linux I can telnet to localhost and log in. If I telnet from the
>Windows PC, I get the System message:
>
>"RedHat Linux 6
>on an i586 etc."
>
>But no log in prompt. From the books that I have got, I think that I need to
>set up pseudo-terminals (pty s), but none of the docs (HOWTOs etc.) seem to
>mention how I should do this. The telnetd man page mentions a pty man page
>that doesn't seem to exist.
>
>HELP! I've been trying to solve this for two days!
>
>Thanks,
>
>Hugh Saunders
I think this is what you are looking for:
edit /tmp/securetty
add 10 lines
ttyp0
-through-
ttyp9
That should do it. Not sure which process to restart to make the
changes take effect. Maybe reboot.
Regards,
-Stephen Hammond
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To: comp.dcom.sys.cisco
Subject: Re: Hiding a class C between two real class C's. Can it be done?
Date: 28 May 1999 17:34:01 -0500
Reply-To: "J.L.M." <[EMAIL PROTECTED]>
In article <a0f23.1186$[EMAIL PROTECTED]>,
John Antypas <[EMAIL PROTECTED]> wrote:
>What I'd LIKE to do is this, but I'm not sure it's possible...
>
>Provider A provides a circuit with a /24 address space (real)
>Provider B provides a separate circuit with a separate real /24 address
>space
>We have a Cisco on our end (2611, IOS 12)
Isn't this a job for NAT?
www.csn.tu-chemnitz.de/HyperNews/get/linux-ip-nat.html
--
James
http://ssdd.conservatory.com
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