Linux-Networking Digest #992, Volume #10 Fri, 30 Apr 99 02:13:33 EDT
Contents:
ifconfig ..frame rate issue (Jayasuthan [VorHacker])
Re: PPP or Masquerade problem (not sure which) (Clifford Kite)
Re: Newbie Question on pppd ("Gene Heskett")
Where can I find drivers? (John Hickmott)
Re: Basic networking info ("Curt")
Re: Bridging ether/token ("Curt")
Re: linux routeur (Pekka Savola)
NFS MOUNT AND WINDOWS NT ([EMAIL PROTECTED])
Re: Naive Beowulf Question (Tomasz Korycki)
Re: email on a ppp connection (Raymond Doetjes)
Re: File transfer over ethernet between Linux and Win 9x (Raymond Doetjes)
LOCALHOST question...whoa baby! (Jason)
Re: How can I set firewall and proxy in linux? (Thomas Zimmerman)
Re: Samba vs. NFS (Raymond Doetjes)
Re: samba cant see win98 shares (Raymond Doetjes)
Re: smbmount and kernel 2.2.5 (Thomas Zimmerman)
Re: sendmail behind firewall (Raymond Doetjes)
----------------------------------------------------------------------------
From: Jayasuthan [VorHacker] <[EMAIL PROTECTED]>
Subject: ifconfig ..frame rate issue
Date: 30 Apr 99 00:09:40 GMT
Hi Netlanders,
I'm still learning on networking. I have one question .. went I type
ifconfig this results appear after 12 days uptime:
eth0 Link encap:Ethernet HWaddr **-**-**-**-**-**
inet addr:***.***.***.** Bcast:172.21.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:35296871 errors:0 dropped:0 overruns:0 frame:37
TX packets:578897 errors:0 dropped:0 overruns:0 carrier:0
collisions:16544
I understand on collisions terms. But the "frame", I am still not understand it.
I hope someone help me abit here.
Thank You,
Suthan
--
==========
Jayasuthan
[Internal Linux System]
http://eplx01/suthan/
smtp%"[EMAIL PROTECTED]"
[External]
http://still.working.on
smtp%"[EMAIL PROTECTED]"
------------------------------
From: kite@NoSpam.%inetport.com (Clifford Kite)
Subject: Re: PPP or Masquerade problem (not sure which)
Date: 29 Apr 1999 16:55:48 -0500
Skeeter Hartwig ([EMAIL PROTECTED]) wrote:
: I have a system running Red Hat 5.1, using kernel 2.0.36-3. I'm using
: it to connect to an ISP via PPP, and doing masquerading for a few
: other machines behind it. It's been set up and running perfectly for
: around a year now. However, I want to change to a different ISP now
: and I am encountering some problems when connecting to the new ISP.
: It seems that when a bundle of data is being transferred from a remote
: machine to one of my masqueraded machines, there is a problem if the
: amount of data is greater than somewhere around the 500 byte mark (it
: looks to be a little higher than 500... 512 maybe?). As an example, I
: did some tests with masqueraded machines being connected to a MUD, via
: telnet. I did a little testing and that's where I got the amount of a
: little more than 500 bytes. The connection works fine until more than
: 500-some bytes are transferred at once (such as a long room
: description). At that point, the connection freezes completely (it
: never recovers), and I don't even see any of the data I should have
: seen, as if none of it was sent at all. If, however, I telnet
: directly from the Linux box that is doing the masquerading, everything
: works fine. It's only when the packets are being masqueraded and
: forwarded to another machine that the problem happens.
: Based on this data, I would assume that it was something wrong with my
: masquerade setup. However, I am using the exact same setup with the
: new ISP as I did with the old ISP, and everything worked (and still
: works) just fine with the old ISP. I am using the exact same PPP
: setup and options. The only thing that is being changed from one test
: to the next is the ISP I am dialing and the username/passwords that go
: with them. Here is the 'options' file I am using for my ppp
: connection:
: ---
: lock
: modem
: crtscts
: debug
: defaultroute
: 192.168.1.2:192.168.1.1
: /dev/ttyS2
: mtu 552
: 115200
: demand
: idle 600
: holdoff 2
: ipcp-accept-remote
: ipcp-accept-local
: lcp-echo-interval 300
: lcp-echo-failure 3
: noauth
: noipdefault
: noipx
: asyncmap 0
: deflate 15
: bsdcomp 15
: vj-max-slots 16
: ---
If the problem is ISP specific *and* is caused by pppd configuration,
then the most likely source of trouble is the `mtu 552' that you specify
as a pppd option. This causes the ISP to have to fragment the larger
Ethernet packets and has been know to sometimes cause trouble when set
to a low value. I'd removing the option to see if the 1500 default
mtu helps.
--
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. */
------------------------------
Date: 24 Apr 99 10:51:51 -0500
From: "Gene Heskett" <[EMAIL PROTECTED]>
Subject: Re: Newbie Question on pppd
Reply to: <[EMAIL PROTECTED]>
Gene Heskett sends Greetings to Kristof Berger;
KB> Hi!
KB> I got my Linux to connect to my ISP. But after some seconds pppd
KB> dies. Why that? Any answer would be fine. Thanx in advance.
Your ISP is hanging up because the login chat was un-successfull?
Cheers, Gene
--
Gene Heskett, CET, UHK |Amiga A2k Zeus040 50 megs fast/2 megs chip
Ch. Eng. @ WDTV-5 |A2091,GuruRom,1g Seagate,CDROM,Multiface III
<[EMAIL PROTECTED]> or |Buddha + 4 gig WDC drive, 525 meg tape
<[EMAIL PROTECTED]>|Stylus Pro, EnPrint, Picasso-II, 17" vga
RC5-Moo! 22kkeys/sec isn't much, but it all helps
--
------------------------------
From: John Hickmott <[EMAIL PROTECTED]>
Subject: Where can I find drivers?
Date: 29 Apr 1999 21:50:08 PDT
I have a new Laptop that came with W98 preinstalled(HP OmniBook 4150 -
cool!). I squeezed out 2 Gig of space on disk and installed rh5.2 on it
but the networking setup did offer any LAN cards that were recognized.
I tried all the 3Com (3c5xx) entries and the NE2000 ones also. I figure
I have to find a driver that supports a "3Com Megahertz 10/100 LAN
CardBus PC Card". In W98 it uses an inf file named "Net3c575.inf". Can
someone please tell me, in particular, if this card is supported by
Linux, and, in general, where does one go to find drivers for lan
cards? Also, if this card is not supported, maybe there is a similar
card that is close enough....
Thank You
john hickmott
[EMAIL PROTECTED]
------------------------------
From: "Curt" <[EMAIL PROTECTED]>
Subject: Re: Basic networking info
Date: Thu, 29 Apr 1999 19:35:41 -0500
Tommy Malloy <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> After a long delay I am finally ready to put together a small training
> network in my apartment. First I have some basic questions.
> There are 3 machines one AMD 586 133 /64 mg (my primary machine) and 2
> Intel 486 66 /8 mg. All have ISA NE2000 cards
>
> 1. Can I live with 8 mg in the 486s?
You may have some problems with only 8 meg. I could not upgrade to RH5.2
on a similar system until I upgraded it to 12 Meg.
>
> 2. How much of Debian/Gnu Linux do I actually need to install on the
> 486s? For example only one machine in the network should have the MTA,
> or be a DNS server. But if I only install the bare minimum how is that
> differnt than just setting up a terminal.
I don't understand the question. A 486 could handle being the email server
and
DNS for such a small network with no problem. I have a 486DX4-100 64Meg
doing that and more for about 20 people.
>
> 3. Come to think of it how do you just set up mutiple terminals? Do I
> need special video cards?
>
> 4. What is the best way to simulate user activity on a training network
> when there is really only one person?
>
> 5. I have a couple of other operatiing systems lying around.(Freebsd,
> Solaris7, win311, I could probably borrow 95 or NT) Can I mix and match
> them on the network. How do you do that?
Sure, use samba share with WIN stuff.
>
> Any recommeded reading material is appreciated. Thanks for any help
>
http://metalab.unc.edu/LDP/HOWTO/HOWTO-INDEX-3.html
> Tom
>
> PS number two is the most important question at this time
------------------------------
From: "Curt" <[EMAIL PROTECTED]>
Subject: Re: Bridging ether/token
Date: Thu, 29 Apr 1999 19:50:39 -0500
I don't think it would be called a bridge between ethernet and token ring.
I think a bridge is only between similar network media, like between two
ethernets. gateway can connects two dissimilar networks. Linux makes a
good
router/gateway, especially if you're running TCP/IP on both the ethernet and
token ring networks.
http://metalab.unc.edu/LDP/HOWTO/mini/Token-Ring.html
http://metalab.unc.edu/LDP/HOWTO/Ethernet-HOWTO.html
Turn on forwarding. Add a route to each network. Add your default route.
Advise: Get 1 thing working at a time.
Antonio Catani <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> It's possible make a bridge beetwein one lan ethernet and one lan token,
> using linux? if yes, HOW?
>
------------------------------
From: [EMAIL PROTECTED] (Pekka Savola)
Subject: Re: linux routeur
Date: Mon, 26 Apr 1999 17:10:47 GMT
>my ppp IP is static : 192.168.4.5 and my network is 192.168.5.0 (linux
>box has so 192.168.4.5 and 192.168.5.5).
You have misunderstood the basic networking priciples.
If your network is 192.168.5.0, your hosts should be 192.168.5.1 and
192.168.5.2 (or something like 192.168.5.*).
The thing for you is to read IP-Masquerade howto. It'll describe the
configuration for a system setup like yours.
Pekka Savola pekkas at netcore dot fi
---
Across the nations the stories spread like spiderweb laid upon spiderweb,
and men and women planned the future, believing they knew truth. They
planned, and the Pattern absorbed their plans, weaving toward the future
foretold. -- Robert Jordan: The Path of Daggers
------------------------------
From: [EMAIL PROTECTED]
Subject: NFS MOUNT AND WINDOWS NT
Date: Fri, 30 Apr 1999 05:31:11 GMT
Hi
Could any one help me out how to configure nfs mount after the installation
of linux,since ive installed linux and i dont want to reinstall it once again
for the sake of nfs mount,and how to make it talk with windows nt,windows 95
and how do i get the files from my windows nt server and the other
systems,please try to give me the solution ASAP,how ever thanx in advance.
(Redhat5.2 with latest kernel update installed)
shashi bhushan
============= Posted via Deja News, The Discussion Network ============
http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
------------------------------
From: Tomasz Korycki <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Crossposted-To: comp.os.linux.hardware
Subject: Re: Naive Beowulf Question
Date: Fri, 30 Apr 1999 01:30:40 -0400
News wrote:
>
> Is it possible to run Beowulf on several (three or four) somewhat
> dissimilar computers? I have several old computers (486 class)
> that are *close* but not exactly the same.
>
> Obviously, if it works, the bottleneck will be at the slowest
> computer.
>
> Is there anyone out there doing something similar with success?
>
> Thanks,
> Mark Swope
Yes, it is possible. With slow CPUs You won't have to worry about
getting network-bound....
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: email on a ppp connection
Date: Fri, 30 Apr 1999 06:56:07 +0200
I don't know about smail, but with Sendmail you can configure a Smart
Host / Relay host. When this is filled, then the messages get stored
until the next queue dump.
Try finding a RElay host / Smart host entry in your smail file.
Raymond
Dustin Puryear wrote:
>
> How would I go about setting up smail to deliver email to our ISP's smtp
> server whenever our ppp link goes up? I have smail doing our internal
> mail, but don't see any mention in the HOW-TO's about how to queue the
> email for later delivery. I assume smail needs to be setup to deliver
> mail to known addresses on the mail machine, but to hold unknown mail
> (internet mail) until told to send it the the smtp server.
>
> Obviously, this has been done before. If anyone would like to share some
> tips I would very much appreciate it.
>
> --
> Dustin Puryear
> [EMAIL PROTECTED]
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: File transfer over ethernet between Linux and Win 9x
Date: Fri, 30 Apr 1999 06:53:37 +0200
If you use either SuSE or RedHat distribution, then you don't need to do
much.
(And assuming you have a constant connection to the internet)
1 Sendmail should start on system startup
2 On port 110 in inetd.conf should stand a pop deamon (Standard on RH
and SuSE).
Then you need to add or change these reords in your sendmail to serve
your domain name
Cwdomainname.com
Dj$.w.domainname.com
When you add a user to your linuxbox, it's user name will be it's email
name.
You can give aliases to that user in the /etc/aliases file after
editting this file run newaliases.
If you don not have a constant connection to the Internet then your ISP
should run a so called bsmtp (Batch SMTP or als ETRN service for your
domain).
Then via a cronjob you run the etrn.pl script evry x minutes or hours,
this will send a request to your ISP's bsmp server he will see if there
are any messages stored for you if so, he will send them to your SMTO
server wich will deliver them.
Raymond
[EMAIL PROTECTED] wrote:
>
> [EMAIL PROTECTED] spoke these words of wisdom:
>
> : 5. I issued the smbmount //Greg/AMY /mnt/amy -I 192.9.200.250 -n and
> : encountered "mount error: No such device" message.
>
> : Please advice.. and thanks!
>
> Try checking what your Win95 box exports:
>
> smbclient -L <ip-addr-of-winbox>
>
> This way, you should be able to see both the name and the
> shares of your windows box.
>
> Bye,
> Mike
>
> --
> << the above email addr might disappear, reply to: >>
> << Michael.Sievers -(at)- desy.de >>
>
> Black holes are where God divided by zero.
------------------------------
From: Jason <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.misc,comp.os.linux.x,comp.os.linux.questions,linux.redhat.misc
Subject: LOCALHOST question...whoa baby!
Date: Thu, 29 Apr 1999 21:40:11 -0400
I've noticed that my host name has been changing after an undetermined
amount of time, usually after having worked on top of the X server for
some time. Normally, my box is named LOCALHOST, i.e. [ROOT@LOCALHOST
/ROOT] or [USER@LOCALHOST /HOME]. After time, however, I've noticed
that the name will change to a alpha-numeric type, usually something
like "core10d46". It always starts with "core", then has a
2-digit/"d"/2-digit sequence following thereafter.
Does anyone know where this might be coming from? Is this a bug that
needs to be updated? Does this come from multiple su changes? Does it
have something to do with my core dump? It is a consistent problem that
I would like to solve. I've noticed that it causes other errors, such
as not allowing me to run certain commands, like,
/etc/cron.daily/updatedb.cron, almost as if the system recognizes this
as another user or machine that doesn't have the permissions or $PATH
necessary to perform these commands.
Any information will be greatly appreciated,
and will be rewarded in turn with the appropriate alcoholic remedy...
;)
Jason
------------------------------
From: Thomas Zimmerman <[EMAIL PROTECTED]>
Subject: Re: How can I set firewall and proxy in linux?
Date: Thu, 29 Apr 1999 18:46:01 -0700
Reply-To: [EMAIL PROTECTED]
Madjid SalimZadeh wrote:
> DIRECT 195.96.147.0 255.255.255.0SOCKD5 @=proxy.safineh.net 0.0.0.0 0.0.0.0
> And when I want I set it manually like this:proxy.safineh.net : 8080
> How can I use these proxy setting in linux?
You may want to take a look at running a squid proxy
(http://squid.nlanr.net/).
Qubes
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: Samba vs. NFS
Date: Fri, 30 Apr 1999 07:00:25 +0200
It depends from what server you want to mount. If the server is another
unixbox then NFS might be a good solution. Except that with NFS you have
to be sure that your User ID's in both passwd files are the same!!! When
your network uses NIS to distribute the passwd file then there is no
problem.
On the other hand when the system is a M$ machine then Samba's smbmount
is a good option. Since you don;t have a NFS client for NT right out the
box.
I must say, that I use NFS between Linuxboxes and Samba for the Windows
files severs. But SamBA can be used to mount *ix systems to. But the
performance is about thet same
Raymond
Dustin Puryear wrote:
>
> I have heard some horror stories about NFS. Is it safer and faster to just
> use Samba if I want to mount a filesystem from another machine?
>
> --
> Dustin Puryear
> [EMAIL PROTECTED]
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: samba cant see win98 shares
Date: Fri, 30 Apr 1999 07:02:12 +0200
Make sure you have Samba configured as a WINS name server and that your
WIN 9X machine is configured to use that WINS server.
And configure SambA to be the amster browser for the network.
Raymond
Ron wrote:
>
> new to linux
> I have a small network of 1 linux redhat 5.2 kernel 2.0.36 running samba
> 1.9.18p10 and 1 win98 computer.
> I recently changed my network security from share level to user level, and I
> can't see my windows shares on the network anymore. I can see and access my
> redhat shares from windows network neighborhood. Some of the symtoms which
> seem to provide clues to the origin of the problem include the following:
> When trying to set up the windows printer as a shared network printer I
> recieve this message " you cannot view the list of users at this time.
> Please try again later."
> from windows DOS prompt running net view \\windowsHostname I get:
> C:\>net view \\192.168.1.1
>
> Error 1311: There are currently no logon servers available to service the
> logon request.
>
> in linux running smbclient -L windowshostname I get:
> smbclient -L windowshostname
> Added interface ip=192.168.1.254 bcast=192.168.1.255 nmask=255.255.255.0
> SMBnegprot failed. myname=LINU destname=CERI - ERRSRV - 1311
>
> and running testparm smb.conf I noticed 2 peculiar settings that might be a
> problem, but I dont know how to change them.
> protocol = NT1
> announce as = NT
> I see in Sery's book "Linux Network Toolkit" these are set as:
> protocol: 8
> announce as: 1
>
> Can anyone identify the problem or point me to where to look for a solution?
> TIA
------------------------------
From: Thomas Zimmerman <[EMAIL PROTECTED]>
Subject: Re: smbmount and kernel 2.2.5
Date: Thu, 29 Apr 1999 22:50:48 -0700
Reply-To: [EMAIL PROTECTED]
Dennis wrote:
> I have done some reading and have realized that the smbmount that once
> worked with kernel 2.0.36 does not work with 2.2.5. Does anyone know
> of a good quick fix or some documentation to read for a solution?
Try the newer version of Samba <url//http://www.samba.org> If you don't
want to compile the source, there are RPM's available for the 2.0.3 (at
least that is what is working here). A cautionary note: the new version
of samba changes the default config file, and can be a pain the tail end
to get working with passwords.
------------------------------
From: Raymond Doetjes <[EMAIL PROTECTED]>
Subject: Re: sendmail behind firewall
Date: Fri, 30 Apr 1999 07:06:33 +0200
Huh??? I think you guys should fire your Firewall manager.
Since if he has configured his firewall correctly then any SMTP call
from any host in the world may come in or if you use another delay host
then you can teol that only that host may deliver SMTP calls.
But sendmail will never ever resolve ip addresses on delivery that would
be nonsense. Only on sending he would have to resolve the ip address of
the recipient and this goes by a standard DNS call. So if you use a
internal DNS server then it can resolv those calls for you. Since I can
imagine that you firewall will ionly expect your DNS servers to enter
the net to lookup/forward DNS calls.
Raymond
Chris Szilagyi wrote:
>
> I have a question about configuring sendmail behind a
> firewall. By default it is set to NOT relay, which is
> fine. But sendmail needs to obtain the ip address to check
> who the recipient is. The problem is that it will always
> see the firewall's ip address / domain. Has anybody found a
>
> way to control relaying with sendmail behind a firewall??
>
> Thanks in advance
>
> Chris Szilagyi
------------------------------
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End of Linux-Networking Digest
******************************
