Linux-Networking Digest #131, Volume #10 Sat, 6 Feb 99 20:13:49 EST
Contents:
Re: Winmodem ([EMAIL PROTECTED])
How to setup rlogin/rsh ? (Ryan S Warner)
Re: Utility to test network security (Bernd Eckenfels)
Re: IP address; physical location (M. Buchenrieder)
Re: 3c900B (Christian Aasland)
Re: Serial Cable networking Questions. Please help! (Dot Matrix)
A couple elementary questions ("theoddone33")
Re: Kernel 2.2, to upgrade or not to upgrade??? ([EMAIL PROTECTED])
Re: 2 Linux machines 2 nics and a hub and something is wrong? (Marc Remijn)
Re: Romote "root" login (Marc Remijn)
Re: Help, I'm at my wits end over PPP (John)
Re: rpm question (Mitchell Ullman)
Re: IP address; physical location (Miguel Cruz)
Re: A better DyNIP? (Miguel Cruz)
ibm token ring card problem ("rieu")
Useful script for port forwarding... ("Chris Eng")
Re: ODBC connection between WinNT application and database running on Linux?
([EMAIL PROTECTED])
Re: PPP problems under 2.2.1 (Clifford Kite)
config 3C575-tx (Zheng Wang)
Redhat 5.1 Networking Lockup ("Freeserve")
----------------------------------------------------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Winmodem
Date: 6 Feb 1999 22:52:40 GMT
Lew Pitcher <[EMAIL PROTECTED]> wrote:
> However, we *do* have analogous packages already developed and installed;
> what is Ghostview/Ghostscript if not an implementation of a component that
> *should* have been (and usually is) implemented in hardware? The reasoning
> for keeping DSP processing on a chip (and off of the system) is the same
> reasoning for keeping rendering processing on a chip (and off of the
> system).
Good point. But PostScript was an expensive option and was not even
offered on many popular printers (like HP), so Ghostscript was problem
developed to fill this hole. (Anyone know the history of Ghostscript?)
WinModems, on the other hand, were developed by US Robotics (now 3Com) to
give themselves a price advantage (around $40 cheaper) in the
marketplace. They've kept the details propriatery (PostScript had
several reference books published describing the technology when it came
out) and was targeted as if no other OSs exists except Windows. The
WinModems are much easier to avoid than no PostScript support in printers.
> I'm not knocking Ghostscript or Ghostview, and I'm not advocating DSP in
> software (a 'la WinModems), but if someone want's WinModem support bad
> enough, they might just write the driver and the rest of us might just use
> it. We're certainly pragmatic enough to use the rendering-in-software that
> Ghostscript gives us, rather than go out and buy a proper (and expensive)
> Postscript-enabled printer.
With the popularity of Linux increasing like the National Debt, 3Com
might decide to release a Linux driver for WinModems. Which is probably
just wishful thinking.
--
Charles Rutledge | Liberty is a tenuous gift. Hard to win, easy
[EMAIL PROTECTED] | to give away, and no will protect it for you.
------------------------------
From: [EMAIL PROTECTED] (Ryan S Warner)
Subject: How to setup rlogin/rsh ?
Date: 6 Feb 1999 22:41:04 GMT
How do I get rlogin and rsh working on my box. I've got .rhosts setup and
I even put some entries in hosts.allow (patterned after another box on the
network). Still no go. Is inetd or rlogind not setup correctly yet?
Also I can only get xconsole to work if I login as root. doing a su root
and then running xconsole gets the program to run (no errors), but it
doesn't actually work. I did a chmod 4755 xconsole, but no luck. What
gives?
Ryan
--
============================================================================
Ryan Warner [EMAIL PROTECTED]
============================================================================
------------------------------
From: Bernd Eckenfels <[EMAIL PROTECTED]>
Subject: Re: Utility to test network security
Date: 6 Feb 1999 23:00:33 GMT
Scott Nelson <[EMAIL PROTECTED]> wrote:
> SATAN is one I've heard mentioned a lot. Supposedly all the hackers use it.
Nope, its too old, nowadays. Tools like nessus are more current (and include
some real DoS attacks).
Greetings
Bernd
------------------------------
From: [EMAIL PROTECTED] (M. Buchenrieder)
Subject: Re: IP address; physical location
Date: Sat, 6 Feb 1999 19:30:58 GMT
Andrzej Filip <[EMAIL PROTECTED]> writes:
>You wrote:
>> Does anybody know how to figure out the physical location of an IP address.
>> I'm trying to write an application which could tell the user about the
>> physical location depending on the IP address. I tried traceroute, but it
>> fails sometimes.
>>
>> I need a reliable mechanism to do this which could atleast tell the city or
>> state based on the IP address.
>Try to use whois to get some more info
>e.g.
>fwois aaa.bbb.ccc.ddd
Well, the _physical_ location of a machine can't be resolved by
looking at its IP address. You may be able to make some more-or-less
reliable guesses about the location based on the traceroute/whois output,
but that's pretty much all you'll ever get from it. There is no
reason why someone shouldn't login into a server from a location some
thousand miles away. Of course, probability would tell that an ISP's
dialup user could usually be found in the surroundings of said ISP's
POP, but what if not ?
Michael
--
Michael Buchenrieder * [EMAIL PROTECTED] * http://www.muc.de/~mibu
Lumber Cartel Unit #456 (TINLC) & Official Netscum
Note: If you want me to send you email, don't mungle your address.
------------------------------
From: Christian Aasland <[EMAIL PROTECTED]>
Subject: Re: 3c900B
Date: Sat, 06 Feb 1999 21:24:47 GMT
Yes, it is (and I replied to the newsgroup too so others can see that
you got an answer).
Haaino Beljaars wrote:
> Hi,
>
> can anybody tell me if the 3c900B is supported by the 3c59x module?
>
> ps. don't post answer in the newsgroup but reply it directly to me.
> Thanx
>
> Greetings,
>
> Haaino Beljaars
--
Christian Aasland
------------------------------
From: Dot Matrix <[EMAIL PROTECTED]>
Subject: Re: Serial Cable networking Questions. Please help!
Date: Sun, 07 Feb 1999 09:39:14 +1000
David Efflandt wrote:
> On 2/6/99, 1:30:28 AM, Dot Matrix <[EMAIL PROTECTED]> wrote
> regarding Serial Cable networking Questions. Please help!:
>
> > Hello. I have RedHat 5.1 on a PC Clone, and i also have an old Amstrad
> > PPC640, and I want to network them via a serial cable on com1 or
> > something. Is this possible? ( I have the modem on com1 also, but will
> > remove it if neccesary) And if it is, could soembody please tell me
> how?
>
> > Thanks in advane,
> > Dot Matrix ([EMAIL PROTECTED])
>
> See the Serial and PPP HOWTO's and Plip mini HOWTO. Plip works much
> faster than serial PPP (especially old machines with 8250 UART), but
> does not do Windows. You should see if you have instructions to
> jumper your modem to another port or set your motherboard serial port
> to COM2.
That's cool, but do you have any suggestions on how to do it from an
ancient 640K Dos Machine that is running either DOS3.31 or Dos6.2?
------------------------------
From: "theoddone33" <[EMAIL PROTECTED]>
Subject: A couple elementary questions
Date: Sat, 6 Feb 1999 17:49:08 -0600
Hi
I have a Windows 95 box with an internet dial-up connection and a linux
box. The two are connected with 10Mbps ethernet. I want to know how to get
internet access to my linux box. I have the gateway set to the IP of my
windows machine, and Wingate is installed on my Win95 box also. I think the
routing table is set up ok. However, nothing seems to happen when I try
lynx through linux, and I can't ping outside hosts. Can someone tell me
what is wrong? I'll post any relevant information to the problem if you
need it. I have Slackware 3.5.
Also, I noticed in the 2.2.0 kernel config stuff that there was support for
an smb filesystem. What is this? Does it replace Samba? Can I use it to
mount drives on my Windows computer?
Thanks
theoddone33
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Kernel 2.2, to upgrade or not to upgrade???
Date: 6 Feb 1999 23:18:42 GMT
Curt Bousquet <[EMAIL PROTECTED]> wrote:
> Some of the other stuff (Like the enhanced encryption for NT passwords)
> takes a little more effort, but the docs and HOWTOs included in the tar ar
> very easy to follow.
But now that Samba can join the NT Domain as a NT Workstation, this
solves a lot of these problems.
--
Charles Rutledge | Liberty is a tenuous gift. Hard to win, easy
[EMAIL PROTECTED] | to give away, and no will protect it for you.
------------------------------
From: Marc Remijn <[EMAIL PROTECTED]>
Subject: Re: 2 Linux machines 2 nics and a hub and something is wrong?
Date: Sat, 06 Feb 1999 23:48:47 +0100
Missed the original message:
> On Sun, 24 Jan 1999, Darren Ford wrote:
> >Folks, I am about to go crazy here with problems. I have two machines
> >both running Red Hat 5.0. Both have NICs and are recognized during the
> >boot process. I reinstalled Red Hat on both machines to get a fresh
> >start. During the install I chose to set up networking for each
> >machine.
> >I want machine one(M1) to be able to connect to a cable modem later on
> >so I want it as a gateway.
> >M1(linux1.blank.net) M2(linux2.blank.net)
> >IP = 192.168.9.1 IP = 192.168.9.2
> >netmask = 255.255.255.0 netmask = 255.255.255.0
> >gateway = 192.168.9.1 gateway = 192.168.9.1
> >domain = blank.net domain = blank.net
> >These machines are both connected to hub. I cannot ping one machine
> >from the other but they can ping themselves and their dummy interface.
> >If I want M1 to be a gateway later on, setting the gateway IP to
> >192.168.9.1 is correct right?
On M2 that is right. But on M1 it isn't. Will the cable modem connect to
a serial port or a network cable?
In the first case when you link up with your ISP via your cable modem
your ppp interface will get an 'outside' (registered) internet IP
address. The default route should in M1 point to this interface. The
'defaultroute' option of pppd will do this for you every time the
connection comes up.
In the second case (when your cable modem has a UTP or other ethernet
interface) you will probably need two ethernet interfaces for M1 if you
want to use it as a gateway (with masquerading). Or maybe it is possible
to get the temporary (outside) IP address and the 'inside' 192.168.9.1
address bound to one ethernet card. Then that should suffice. The
default route on M1 should point to the IP adress of the ethernet
interface of the cable modem.
Then packets will be succesfully routed out from your network onto the
internet. However since their source address will be from the
192.168.9.0 net the reply packets won't find their way back. That's why
you will want M1 to masquerade these packets so they appear to come from
the interface that is connected to the cable modem.
Marc
> >Why can't these guys ping each other? I tried adding each of them to
> >the others routing table but that didn't work or I didn't do it right.
> >When I do a 'route -n' it shows that the entry is there.
> >
> >Can somebody tell me what I'm doing wrong?
>
> I had this problem a while ago whilst experimenting with IP Masquerading using
> a Win98 box into a Linux Box connected to the net, the solution was quite
> simple, The NIC that I had in the Linux Box was a clone NE2000 PCI card which
> in all fairness initialised on bootup but failed to establish any networking
> protocols whilst trying to ping the other machine and vice versa. I would go
> to the lengths if you are using a PCI NIC that maybe a change to ISA may solve
> the problem. As far as your setup goes with linking two machines to the
> Internet via one box, I would suggest a look at the doc entitiled
> IP-Masquerade, the setup facility in it worked for me. If you haven't got it,
> I can forward it to you no bother.
>
> Regards, Michael
------------------------------
From: Marc Remijn <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux,comp.os.linux.admin,comp.os.linux.help,nl.comp.os.linux
Subject: Re: Romote "root" login
Date: Sun, 07 Feb 1999 00:44:38 +0100
Vikram.V.Asrani wrote:
>
> In comp.os.linux [EMAIL PROTECTED] wrote:
> => /etc/sudoers controls which user may use su IIRC, so that means that you can
> => effecively make another wall you'll have to overcome before you even become
> => root.
>
> I tried that but it does not seem to work. Anything that I missed
> out. All I wrote in the file was the name of the user who is allowed
> to use su and then I tried running su from someone not listed in
> that file. This succeeded in making me root .
My system can use a /etc/suauth file. I just checked the man page. No
mention of sudoers. suauth has a different syntax:
to-id:from-id:ACTION
to-id is the account to su to, from-id the account that does the su.
You can use ALL like in root:ALL:deny which will prevent anyone su-ing
to root.
Marc
>
> --
> Vikram.V.Asrani.
> ([EMAIL PROTECTED])
------------------------------
From: John <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,alt.os.linux.caldera
Subject: Re: Help, I'm at my wits end over PPP
Date: Sat, 06 Feb 1999 21:01:17 GMT
A few questions:
In a previous post you said it was Hayes Compatable, so its not a Winmodem
right?
Is it Plug-and-Play?
Is the modem itself set to use a certain i/o and irq?
Is the serial driver set to use a certain i/o and irq?
Internal or external?
What speed--14.4, 28.8, 33.6, 56?
Ever get a dial tone?
What are the hardware and software settings in Windows (and the other OSs)
that work?
Any error messages?
Please post replies (no private e-mails)
Thanks ;)
JMcK
In article <79fot7$hr9$[EMAIL PROTECTED]>,
The Scot <[EMAIL PROTECTED]> wrote:
> Hello again,
>
> Thank you to everyone who has helped so far, alas I still can't get ppp to
> work and I'm really lost as to what to try next. I just wnat to surf with
> linux, thats all. I've tried using kppp, I set things up with netcfg but then
> kppp still wouldn't work, I tried pppd but that didn't work either...
>
> So I tried eznet. I made sure ttyS3 was linked to /dev/modem
>
> I downloaded the binary and copied it to /usr/bin and did a chmod 04755 as
> the read me instructed. I entered the info and then tried eznet tir up, it
> just sits there I tried multiple times and it just sits there and doesn't
> come back with anything.
>
> Am I doomed to surf with only windoze, I really don't understand why its not
> working! Please help if you can!
>
> cheers,
> Dom
>
> -----------== Posted via Deja News, The Discussion Network ==----------
> http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
>
============= Posted via Deja News, The Discussion Network ============
http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
------------------------------
From: Mitchell Ullman <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.admin,comp.os.linux.questions
Subject: Re: rpm question
Date: 7 Feb 1999 00:03:43 GMT
It looks like to me that the problem lie in the fact that you are
missing an RPM or two.
Ralf Wiegand wrote:
> Hello -
> I'm not sure why I can not install any packages...
> Linux 5.1/P5/133MHz/128RAM/4GB HHD/base installation
>
> [root@localhost RPMS]# rpm -ivh traffic-vis-0_23-1_i386.rpm
> error: traffic-vis-0_23-1_i386.rpm cannot be installed
> [root@localhost RPMS]# file *
> traffic-vis-0_23-1_i386.rpm: RPM v3 bin i386 traffic-vis-0.23-1
> [root@localhost RPMS]#
>
> I also was puzzled about the make utility... The documentation is
> saying it is part on the OS, but I can find it any were... does it
> belong to the "development" packages?
>
> Please help.
> Thank You
> Ralf
>
> [EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Miguel Cruz)
Subject: Re: IP address; physical location
Date: 7 Feb 1999 00:10:48 GMT
Praveen <[EMAIL PROTECTED]> wrote:
> Does anybody know how to figure out the physical location of an IP address.
> I'm trying to write an application which could tell the user about the
> physical location depending on the IP address. I tried traceroute, but it
> fails sometimes.
Your application will need to connect to port 25 of the machine in question.
Then it should perform a transaction as follows:
HELO
MAIL FROM:<[EMAIL PROTECTED]>
RCPT TO:<postmaster@host-in-question>
DATA
From: Praveen <[EMAIL PROTECTED]>
To: Postmaster <postmaster@host-in-question>
Subject: Where is your computer?
Hello. I would like to know where your computer is physically located.
Please email me with that information. When I receive your response
I will mail you a check for $25. Thanks.
.
QUIT
This is by far the most reliable method.
miguel
------------------------------
From: [EMAIL PROTECTED] (Miguel Cruz)
Subject: Re: A better DyNIP?
Date: 7 Feb 1999 00:14:21 GMT
Domingo Morgan <[EMAIL PROTECTED]> wrote:
> Well, the one that was out there for free shut down last month:
> http://www.ml.org/
>
> The other commercial one I've got bookmarked is http://www.ml.org/
>
> Could be others but that's my two bits.
Yes, that reminds me of several others:
www.ml.org
www.ml.org
www.ml.org
Oh yes, and www.ml.org
miguel
------------------------------
From: "rieu" <[EMAIL PROTECTED]>
Subject: ibm token ring card problem
Date: Sun, 7 Feb 1999 01:00:04 +0100
I am running Linux 2.0.35 with a token ring card (IBM PCI Token Ring 16/4
Wake On Lan). I can't use this token ring card. Linux seems to not found the
device.
Does anyone have any recommendations in order to connect my PC to my campus
ring ?
Thanks.
Damien RIEU [EMAIL PROTECTED]
------------------------------
From: "Chris Eng" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux
Subject: Useful script for port forwarding...
Date: Sat, 6 Feb 1999 19:36:58 -0500
I got tired of looking up the command syntax for port forwarding
every time I wanted to use it, so I wrote this short script to
make the process a little easier. It assumes a PPP connection on
interface ppp0 (in order to grab the external IP) but you can
change this in the code if you have a different setup (cable
modem or something else). This has been especially useful in my
home network because our ISP allocates dynamic IP's and I've
gotten really tired of looking up the IP manually every time
I want to set up forwarding.
It's useful because if you want to use port forwarding for any
non-standard services (such as playing games) you can just edit
the script (or /etc/services) and add in the port number for the
game.
Just type ./fwd with no arguments to find out the syntax and
the assumptions I made about certain files. Make sure you install
ipmasqadm first.
Chris
[EMAIL PROTECTED]
--- begin fwd.pl ---
#!/usr/bin/perl
use Socket;
# non-standard applications/ports (global)
#example:
#$ports{ftp} = '21/tcp';
# what to print (if different from what's listed in /etc/services)
$output{ftp} = 'FTP';
sub getstatus {
$status = `/usr/sbin/ipmasqadm portfw -l`;
if (!(($status =~ /TCP/) || ($status =~ /UDP/))) {
print "\nNo forwarding active.\n\n";
} else {
print("\n$status\n");
}
}
if ($#ARGV < 0) {
print "\nUsage:\n\n";
print " $0\t\t\tPrints this screen\n";
print " $0 status\t\tGet current port forwarding status\n";
print " $0 app [+/-]host\tEnable/disable forwarding for selected
app\n";
print "\nExamples:\n\n";
print " $0 ftp +tigger\tEnable FTP forwarding to host tigger\n";
print " $0 telnet -pooh\tDisable Telnet forwarding to host roo\n";
print "\nCaveats:\n\n";
print " This script depends on the port numbers and transport layer
protocols being\n";
print " defined either in /etc/services or in the global variables
section of the\n";
print " script. It also assumes that all internal hostnames used as
parameters\n";
print " will be defined in /etc/hosts and that the external IP is
already\n";
print " established on interface ppp0.\n\n";
exit(1);
}
$app = shift(@ARGV);
$app =~ tr/A-Z/a-z/;
if ($app eq 'status') {
&getstatus;
exit(1);
} elsif (!($ports{$app})) {
$ports{$app} = `grep $app /etc/services`;
if ($ports{$app}) {
$ports{$app} =~ /.*^$app\s+([0-9]+\/...).*/;
$ports{$app} = $1;
if (!($output{$app})) {
$output{$app} = ucfirst($app);
}
} else {
print "\nInvalid application selected.\n\n";
exit(1);
}
}
if ($#ARGV < 0) {
print "\nNeed to specify the target host.\n\n";
exit(1);
}
$ARGV[0] =~ /([\+\-])(.*)/;
$addremove = $1;
$host = $2;
$ip = `grep $host /etc/hosts`;
if (!($ip)) {
print "\nInvalid hostname selected.\n\n";
exit(1);
}
$ip =~ /([0-9\.]*)\s.*/;
$intip = $1;
print "\nInternal IP is $intip\n";
$ip = `ifconfig ppp0`;
$ip =~ /.*inet addr:([0-9\.]*)\s.*/;
$extip = $1;
print "External IP is $extip\n";
$ports{$app} =~ /(.*)\/(.*)/;
$portnum = $1;
$protocol = $2;
if ($addremove eq '+') {
system("/usr/sbin/ipmasqadm portfw -a -P $protocol -L $extip $portnum -R
$intip $portnum");
print "$output{$app} forwarding (port $portnum) to $host is enabled.\n";
} else {
system("/usr/sbin/ipmasqadm portfw -d -P $protocol -L $extip $portnum -R
$intip $portnum");
print "$output{$app} forwarding (port $portnum) to $host is
disabled.\n";
}
&getstatus;
--- end fwd.pl ---
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: ODBC connection between WinNT application and database running on Linux?
Date: 6 Feb 1999 23:10:27 GMT
Georg Buehler <[EMAIL PROTECTED]> wrote:
> I have a web application that runs on a WinNT box. The web app gets it's
> data from an ODBC data source, usually a Microsoft SQL Server.
> I would very much like to host the data off a Linux machine. I know that
> many database vendors have begun to support Linux (Sybase, Oracle, Informix)
> but I don't know whether that means I can host data from Linux for Windows
> ODBC apps.
ODBC is simply a layer that (should) allow programs to access any
database without changes. (You milage may vary considerably.) The ODBC
layer still calls the native database driver on the client machine, so
what platform who house the database on shouldn't matter (MS SQL
excepted). We use ODBC to reach Informix on an HP/UX box.
> I've cast about in vain to find ODBC drivers for Sybase, though I'm told
> they exist. I'm a little intimidated by Oracle.
You need to find the client packages, which nomally ship with the
database server. The Big Three (Oracle, Sybase, Informix) have all
released ports for Linux, so if you purchase actual licenses, they should
give you the client software. (Again, your milage may vary considerably.)
--
Charles Rutledge | Liberty is a tenuous gift. Hard to win, easy
[EMAIL PROTECTED] | to give away, and no will protect it for you.
------------------------------
From: [EMAIL PROTECTED] (Clifford Kite)
Subject: Re: PPP problems under 2.2.1
Date: 6 Feb 1999 16:48:52 -0600
J. Scott Berg ([EMAIL PROTECTED]) wrote:
: I use ppp rather extensively, and when someone says "there's a bug in
: ppp-2.3.5" my reaction is "of course there is!" but I really couldn't
: tell you what it is. I certainly don't have the level of problems
: that people are describing in this thread, but my ppp connections are
: far from rock solid either. Of course, I can't figure out whether the
: problems are associated with ppp under linux or with my ISP (getting
: my ISP's tech support to help debug the problem is useless: they only
: support their software under Windows).
: My problems all consist of seemingly random disconnects. Here are
: some of the things I've run into:
: 1) I couldn't send large files to my ISP's mail server. The problem
: seems to be that their initial ppp negotiation allows a mtu of 1524;
: if I just go with that (don't set the mtu in my config files) the
: large packet would hang. Presumably a bad router between me and my
: ISP's mail server (but one has to question the intelligence of having
: the ppp connection ask for an mtu of 1524 and then not being able to
: have that mtu get through to your own mail servers). Fix: use an mtu
: of 1500. Somebody in this group suggested this might really be a
: kernel problem. I don't know enough to say yea or nay.
Hmm. The default mtu for pppd is 1500. I don't know why explicitly
setting this to 1500 would fix the problem - perhaps there _is_ a bug.
Even if the ISP requests an mru of 1524 pppd should not try to send
more than the default.
The mru is a request to the peer not to send more than the specified
number of bytes in data packets. There may be a problem here too since
the default is 1500 bytes according to the man pages and ppp-2.3.5 won't
request the default value, *even if the mru is explicitly set to 1500*.
And it is always risky to make the assumption that the other side will
use an mtu of 1500 or less. The 1500 byte default may be based on a
buffer limit and so also be the maximum mru for linux ppp. In this
case pppd *should* request mtu 1500, especially if it is explicitly set.
: 2) At one time I was having SEVERE problems with random disconnects.
: I would try to ftp a large file, and at one point in the file, the
: connection would be dropped. I would reconnect, and at roughly (but
: not exactly) the same point, the connection would drop again. The
: fix: set up a firewall to only allow out packets with my currently
: assigned IP. Apparently the dead connections (even after I quit the
: programs with the dead connections) were still trying to send out
: packets to finally close out the connection. The disconnect wouldn't
: consistently happen at the first packet with the wrong address, so I
: can't attribute it to that problem directly. However, the firewall
: eliminated the bulk of these random disconnects.
I'd bet that the dropped connections are likely caused by something
other than the Linux ppp - although this opinion is based mostly on
the use of ppp-2.2.0 rather than 2.3.5. I *think* the attempts to close
out a dropped connection are normal.
: 3) If a program tries to send packets too early in the connection
: process, the connection seems to get dropped. I'm not sure how to
: define "too early," but if ifconfig isn't showing ppp0, then I believe
: that is "too early." It seems like this one has to be the kernel or
: pppd.
That seems logical and normal, if the ppp interface is not up when the
connection attempt is made then no ppp connection is possible.
: 4) Sometimes I just can't connect. The entire connection process
: seems to go through OK (all the usual LCP negotiation etc.), and then
: the connection is dropped.
This has happened to me on rare occasions with a especially busy ISP, I
just assumed that the ISP runs out of some resource. But this was with
ppp-2.2.0 and kernel 2.0.29, which is where most of my experience lies.
: 5) I STILL get some random disconnects. I've even set my modem (or at
: least I think I have: getting comprehensive documentation for modem
: commands is also a never ending battle) NEVER to hang up on carrier
: loss or go into command mode based on '+++'. They're not from
: timeouts at my ISP's end: this happens in the middle of a file
: transfer sometimes.
: I've seen the last three in 2.0.36 and 2.2.1 (the first two problems I
: found and fixed under 2.0.36; in all cases I use ppp-2.3.5).
: Again, I can't attribute most of these directly to the ppp support in
: the kernel. But it certainly wouldn't surprise me at all if there
: were problems with ppp in the kernel.
I would be surprised at a ppp bug that caused problems in maintaining
established ppp connections.
--
Clifford Kite <[EMAIL PROTECTED]> Not a guru. (tm)
/* Governments should be changed like diapers - often and for the
* same reason. */
------------------------------
From: Zheng Wang <[EMAIL PROTECTED]>
Subject: config 3C575-tx
Date: Sat, 06 Feb 1999 18:12:32 -0500
==============9A84FC763BA653EEBCA68625
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
I am trying install Linux (Debian) into my BSI NP6280 laptop. The
probems
is that I can not config the Ethernet card (3C575-TX). During the
installation, I can not find the device. After config the network, I
always get the error message: network is not rearchable.
Thanks.
--
_________________________
Zheng Wang
Statistics
==============9A84FC763BA653EEBCA68625
Content-Type: text/html; charset=us-ascii
Content-Transfer-Encoding: 7bit
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
I am trying install Linux (Debian) into my BSI NP6280 laptop. The probems
<BR>is that I can not config the Ethernet card (3C575-TX). During the
<BR>installation, I can not find the device. After config the network,
I
<BR>always get the error message: network is not rearchable.
<P>Thanks.
<BR>
<PRE>--
_________________________
Zheng Wang
Statistics</PRE>
</HTML>
==============9A84FC763BA653EEBCA68625==
------------------------------
From: "Freeserve" <[EMAIL PROTECTED]>
Subject: Redhat 5.1 Networking Lockup
Date: Tue, 2 Feb 1999 21:18:21 -0000
Hi,
I am a user of Redhat 5.1, i have a couple of Dual boot machines on an
internal Residence Network with a couple of Netgear NE2000 Compatible Cards,
when I try to set them up using the NE2000 driver the machine locks up next
time I reboot. It stops on Sendmail etc & leaves me waiting for 1 Hour 30
Mins!!!! Please Help Me, I'm Frantic!!!!
Nik Fox
------------------------------
** FOR YOUR REFERENCE **
The service address, to which questions about the list itself and requests
to be added to or deleted from it should be directed, is:
Internet: [EMAIL PROTECTED]
You can send mail to the entire list (and comp.os.linux.networking) via:
Internet: [EMAIL PROTECTED]
Linux may be obtained via one of these FTP sites:
ftp.funet.fi pub/Linux
tsx-11.mit.edu pub/linux
sunsite.unc.edu pub/Linux
End of Linux-Networking Digest
******************************
