Linux-Networking Digest #329, Volume #10 Sun, 28 Feb 99 01:13:47 EST
Contents:
Re: Printer problem with form feed (Tobias Reckhard (jester))
Re: UDP Packets through an ipfwadm firewall... (Tobias Reckhard (jester))
IP Masq+Cablemodem, need 2 nics? (Nate Case)
Re: How to allow ICMP through my firewall? (Tobias Reckhard (jester))
Stupid question about remote shell cammands. (Stephen Loewinsohn)
Re: Remote CVS Access Broke With RedHat 5.2 Linux Upgrade (Derald Metzger)
Re: Compiling ppp-2.3.5 (Clifford Kite)
Re: @Home setup (Matt Peneguy)
Re: RH 5.2 HD Install - WON'T - HELP!!! (Crafty)
telnet & samba work, but ftp doesn't (Chuck Landress)
Re: problems setting up SMC Etherez (8416-T) in kernel 2.0.36 (Slackware
distribution) (Malware)
Re: Problems with DNS & Firewall (Malware)
Re: domain with remote hosts? (Juergen Heinzl)
Re: Machine name themes - what do you use? (Miguel Cruz)
Linux----->W98----->modem------>internet ("GN")
Re: Compiling ppp-2.3.5 ("Prutser")
dhcp on solaris (Jabal Raval)
Re: domain name reg and IP setup ("Duane Elmer Smeckert")
Re: Network Traffic Monitoring? (Ed Finch)
Boot rom burner? ([EMAIL PROTECTED])
Re: TCP IP CRS ("Duane Elmer Smeckert")
Re: Replacing NT Server with RH5.1..? ("Ger Donners")
Re: newbe, dial up PPP, busy. SuSE 6.0, KDE ([EMAIL PROTECTED])
Re: Looking to have my own domain name ("Ger Donners")
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Tobias Reckhard (jester))
Crossposted-To: comp.os.linux.hardware,comp.os.linux.misc
Subject: Re: Printer problem with form feed
Date: Sat, 27 Feb 1999 13:00:08 GMT
On Fri, 26 Feb 1999 14:02:52 +0100, "Frank Stiller" <[EMAIL PROTECTED]>
wrote:
>My printer (HP Deskjet 895 Cxi) always prints another blank page after he
>did the normal print job. I think, this is a form feed based on linux. My
>printer is connected with my server where linux is installed. On my computer
>Win98 is installed and the RAW data is send to the server and the server
>send the data directly to the printer port. Someone says, that you can
>deactivate the form feed option in linux, but where?
In /etc/printcap, disable the input filter for the printer. The
options are separated by colons and in my printcap, on several lines
linked by the Unix 'soft-line-break'-character "\", so I just put a
hash mark in front of the line starting with ":if=/usr/lib/apsfilt..."
and that was enough.
Tobias / jester
------------------------------
From: [EMAIL PROTECTED] (Tobias Reckhard (jester))
Subject: Re: UDP Packets through an ipfwadm firewall...
Date: Sat, 27 Feb 1999 15:24:26 GMT
On Sat, 27 Feb 1999 03:24:23 GMT, [EMAIL PROTECTED] wrote:
>We're running a Linux firewall with non-routable numbers on our local network,
>including the dialup server. Some of our game-players and IRC people who want
>to trade pictures using 'dcc' format, can't do it. It seems that we aren't
>routing UDP packets. Evidently they can receive, but can't send. Help me. oh
>thou gurus...
IRC is extremely yucky, according to Chapman & Zwicky, authors of
"Building Internet Firewalls" by O'Reilly & Associates, because of
problems in the clients, which supposedly grant the servers generous
access to local resources like files, processes and programs. If you
really want to allow people to use it, they recommend you setup an
untrusted 'victim' machine that they need to log in to and perform IRC
from there. 'Normal' IRC can be treated with packet filtering just
like any other client-server protocol, the clients use TCP ports above
1023 while the server listens on port 6667. DCC makes life harder,
though, because it opeates on random user-area (i.e. >1023) TCP ports,
with the client the data is being transferred from opening the
connection. This is ok when your people are DCCing out stuff, because
you can filter incoming traffic for the ACK bit, the appropriate rule
being identical with that for passive ftp-data, but if they want to
receive, the remote machines need to initiate a TCP connection to your
hosts from any high port. That is something you want to avoid. The
problem is, if you set up a dedicated machine, perhaps in a DMZ, for
IRC, you can't allow it to have access to the machines behind your
firewall, because you are allowing outside machines to initiate
connections. However, the only reason you want it out there is for
people to be able to DCC out. But if it's out there, they don't have
anything to DCC out..
So, in conclusion to an enormous and probably very confusing
paragraph, you can't allow them to use IRC and DCC out of your
firewall-protected network. They could send files as email
attachments, though, it's not much more work (they only need the other
person's email address).
HTH
Tobias
------------------------------
From: Nate Case <[EMAIL PROTECTED]>
Subject: IP Masq+Cablemodem, need 2 nics?
Date: Sat, 27 Feb 1999 14:12:22 -0600
Hi. I'm using MediaOne for my cablemodem service and I'm trying to
setup IP Masqerading to allow my other computer to share the
connection. I understand IP Masqerading fairly well, but what I'm
trying to figure out is if I need to get a 2nd ethernet card for my
linux box in order for it to function correctly. Most people do use 2
ethernet cards, but I think it's possible for me to not have to use one,
and here's why:
The cablemodem is a surfboard 1200 (sb1200), eth0 is permanantly
assigned with 192.168.100.2, even while connected (which poses problems
with some apps, but i've learned to deal with it). Currently, I have
the cable modem plugged directly into the hub, along with my other
computers. Right now, I can access the Internet, as well as services on
my LAN with my Linux box. So, I don't think I need a second ethernet
card, but maybe i'm missing something.
The reason I ask is because I've tried to get it to work this way
already, but was unable to. Either I was doing something wrong while
setting up IP Masqerading, or I indeed need another ethernet card.
Thanks in advance
------------------------------
From: [EMAIL PROTECTED] (Tobias Reckhard (jester))
Subject: Re: How to allow ICMP through my firewall?
Date: Sat, 27 Feb 1999 12:52:24 GMT
On 26 Feb 1999 00:52:05 -0700, [EMAIL PROTECTED] (Dave Klingler)
wrote:
>How would one actually allow ICMP packets such as ping through a
>packet-filtering linux firewall?
Assuming a 2.0.x kernel:
# allow ping between $NET1 and $NET2, attached to interfaces $NET1IF
# and $NET2IF
# allow echo request to travel from $NET1 to $NET2
ipfwadm -I -a accept -P icmp -S $NET1 8 -D $NET2 -W $NET1IF
ipfwadm -F -a accept -P icmp -S $NET1 8 -D $NET2 -W $NET2IF
ipfwadm -O -a accept -P icmp -S $NET1 8 -D $NET2 -W $NET2IF
# allow echo reply to return to $NET1 from $NET2
ipfwadm -I -a accept -P icmp -S $NET2 0 -D $NET1 -W $NET2IF
ipfwadm -F -a accept -P icmp -S $NET2 0 -D $NET1 -W $NET1IF
ipfwadm -O -a accept -P icmp -S $NET2 0 -D $NET1 -W $NET1IF
If you need to perform IP masquerading, make sure you have ICMP
masquerading support compiled into the kernel. And I suppose you only
need to masquerade the echo request's forwarding rule, because
masquerading normally handles the forwarding of return packets.
Tobias / jester
------------------------------
From: Stephen Loewinsohn <[EMAIL PROTECTED]>
Subject: Stupid question about remote shell cammands.
Date: Sat, 27 Feb 1999 20:46:21 -0800
Reply-To: [EMAIL PROTECTED]
I have two RH5.2 machines (workstation install) connected via crossover
cable. They can rlogin, but they can't rsh. The error message is
"Permission denied". What do I need to change to allow them to rsh?
Thanks,
-Steve
------------------------------
From: Derald Metzger <[EMAIL PROTECTED]>
Crossposted-To:
comp.software.config-mgmt,comp.os.linux,comp.os.linux.admin,comp.os.linux.help,comp.os.linux.misc,comp.os.linux.redhat
Subject: Re: Remote CVS Access Broke With RedHat 5.2 Linux Upgrade
Date: Sat, 27 Feb 1999 21:09:37 +0000
David Heddle wrote:
> Hello,
>
> I recently upgraded my home Linux box to Red Hat 5.2. This also
> upgraded cvs to 1.10. I keep a cvs repository on the home linux box
> and use password authentication from machines over the net for access.
> After upgrading, if I try to access the repository remotely I get the
> following error
>
> >cvs update
> cvs [update aborted]: unrecognized auth response from 137.155.x.x :
> error 0 Server configuration missing --allow-root in inetd.conf
>
> (I put int the x.x to protect the ip address)
>
> All this worked beautifully before I upgraded (betcha never heard that
> from a linux user before!) Any suggestions? It seems as if I need
> "--allow-root" SOMEWHERE in my inetd.conf file, but I do not know
> where.
>
> Thanks for any & all help.
>
> David
>
> email: [EMAIL PROTECTED]
>
I'm not familiar with older version of cvs but the err msg is indicating
that the /etc/inetd.conf line does not contain the proper
`allow-root=<$CVSROOT>' value for your repository. Here is an example
line:
cvspserver stream tcp nowait root /usr/bin/cvs cvs
--allow-root=/cm/cvstst pserver
You can find more doc on this using `info cvs->m repository->m remote->m
password'.
I may post a detailed setup for a remote repository with some minimal
access control features on www.remotesensing.org in the near future.
--
Derald Metzger
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Clifford Kite)
Subject: Re: Compiling ppp-2.3.5
Date: 27 Feb 1999 21:27:45 -0600
Here's something from an old post that might help:
>Another change needs to be made for ppp 2.3.5 installation on RedHat 5.1.
>(or at least I had to make it) . I had to add the line "#include
><asm/types.h>" to
><INSTALL_DIR>/ppp-2.3.5/pppd/sys-linux.c, newline # 43
>and
><INSTALL_DIR>/ppp-2.3.5/pppstats/pppstats.c, newline # 50
>
>otherwise I got compile errors related to undefined types (e.g. __u32 )
The caveat is that I don't run RH and have never tried it. I am pretty
sure it's distribution dependent since ppp-2.3.5 compiled on my system
without this problem.
Mathias Jansson ([EMAIL PROTECTED]) wrote:
: After spending 5 hours looking at compiler errors I have to admit
: im stuck - ppp won't compile. I've tried gcc272 and egcc290 and
: even pgcc291 (desperate) - no difference. The ppp package has a
: script to patch/replace the ppp-kernel header but since Im using
: linux-2.2.1 the kernel header are newer than the ones in ppp.
: It all comes down to this:
: In file included from sys-linux.c:68:
: ../include/linux/ppp_defs.h:97: parse error before `ext_accm'
: ../include/linux/ppp_defs.h:97: warning: type defaults to `int' in
: declaration of `ext_accm'
: ../include/linux/ppp_defs.h:97: warning: data definition has no type or
: storage class
: ../include/linux/ppp_defs.h:113: parse error before `__u32'
--
Clifford Kite <[EMAIL PROTECTED]> Not a guru. (tm)
/* Editing with vi is a lot better than using a huge swiss army knife. */
------------------------------
From: Matt Peneguy <[EMAIL PROTECTED]>
Subject: Re: @Home setup
Date: Sat, 27 Feb 1999 21:17:11 GMT
This worked to some extent. I can now ping IP addresses but not names.
Any suggestions?
Matt
JoHn DoH wrote:
>
> This is actually deceptive. You can get a ...failed even if it does
> work, go figure? Well this should help, instead of initializing dhcpcd
> with just that add the '-h your_hostname' flag and it will work. THen
> check it with ifconfig a moment later and you should be set.
>
> -DoH
>
> matt wrote:
> >
> > I currently have @home setup in win95. I am trying to set it up in RH
> > 5.2 but I can't get dhcp working. During bootup after the card is
> > recognized correctly. I get the message:
> >
> > Using DHCP for eth0...failed
> >
> > I believe everything is setup correctly.
> > My ethernet card is a 3com 3C900 (Etherlink XL PCI) if that helps.
> >
> > TIA,
> > Matt
------------------------------
From: [EMAIL PROTECTED] (Crafty)
Crossposted-To:
alt.os.linux,comp.os.linux,comp.os.linux.help,comp.os.linux.questions,comp.os.linux.setup,alt.linux
Subject: Re: RH 5.2 HD Install - WON'T - HELP!!!
Date: 27 Feb 1999 21:16:17 GMT
Just saw your post, and it sounds like you ran into the same problem I
just did. The images for the boot and supplemental install disks in
the dir tree for the RH5.2 distro will not work for installing from
the hard drive, and will give errors like can't find valid dir tree,
or can't open dir. Updated images are available from RedHat's update
site. Make your boot and supp floppies from the new images and it
should install with no problems. It worked fine here.
Bob Crafton
On Thu, 25 Feb 1999 17:03:19, Carl B. Constantine <[EMAIL PROTECTED]>
wrote:
> First, I appologize for the cross post, but I'm extremely frustrated that
> this is not working and I need an answer, ASAP. I'll also appologize now for
> all the CAPS in various areas.
>
> I'm trying to install RH 5.2 from my Hard Drive. I've spoken with other
> people that have gotten it to work without a problem. *I*, however, get an
> error no matter what I try to do! It's frustrating as heck! I need some help
> ASAP, please!
>
> First, my system:
> -----------------
> Compaq Deskpro 4000 (model 6200 - Pentium Pro 200, no MMX)
> 96 MB RAM
> Floppy Drive (I swapped out the LS-120)
> 2.5 GB and a 4.3 GB hard drives connected to the Primary IDE controller.
> the 4.3 is a Western Digital drive. the 2.5 is a Magnum (I think)
> 8X CD-ROM as Master on the Second IDE controller
>
> The 2.5 GB hd has 3 partitions. 1 is used for the Compaq setup utils. The
> other two are C & D respectively. I'm installing RH 5.2 to the 4.3 (though I
> may change this setup around). I have a Parallel Port ZIP (not ZIP plus or
> 250 MB Zip). Windows NT 4 is installed on C. Both C & D drives are FAT16,
> not NTFS or FAT32.
>
> Now my problem.
> ---------------
> Downloaded RH 5.2 and placed it on D, first in a sub-dir from the root.
> Created the boot and supp disks. Went through the install, partitioned the
> drive, etc. When it comes to the part where it asks for where the RedHat
> directory is, I choose the device (/dev/hda5/ - D drive) and the path /rh52.
>
> RH starts scanning the directory and then gives this error:
>
> Error opening directory
>
> ??? Say What??? I've tried installing from the root of D and the root of C.
> I'm not stupid, I know what I'm doing here but it refuses to work and I
> DON'T KNOW WHY!!!!
>
> What error is it getting opening the directory??? WHy? What can I do to STOP
> IT!
>
> Can ANYONE tell me what's going on and how can I fix it? I'm sure I have all
> the files, etc. But I can't figure out for the life of me what the heck is
> causing this error. Do I need a trans.tbl file? What?
>
> I have RH5.1 on CD that I got from a Book, but I didn't want to go through
> the long ardious process of installing RH5.1 and then trying to update all
> the RPMs to the latest versions (including kernal 2.2.2). Mind you I may
> have to do this. So if anyone has done that and know exactly what to do,
> here's the info I need from you. Since it will be a lot of info, do NOT post
> it here. instead, e-mail me directly. That will save a lot of bandwidth.
>
> 1) what did you install from 5.1 for a "workstation" type install. Note: I
> need DHCP to work. I also want the latest GNOME and E! What do you have
> starting up in RH 5.1
>
> 2) What RPM's did you specifically upgrade?
> 3) where did you place the RPM's to install
> 4) what effect did it have on your installed programs?
> 5) how exactly did you do it.
>
> Thanks in advance for any help anyone can give.
>
> --
> ---------------------------------------------------------------
> Carl B. Constantine [EMAIL PROTECTED]
> PGP Key available on request
> ---------------------------------------------------------------
> The programmer's national anthem is "AAAAAAAARRRRGHHHHH!!."
=====================================
Bob Crafton email [EMAIL PROTECTED]
ICQ#3667277 Amateur Radio WA3SLE
=====================================
------------------------------
From: Chuck Landress <[EMAIL PROTECTED]>
Subject: telnet & samba work, but ftp doesn't
Date: Sun, 28 Feb 1999 00:25:08 -0500
Hi I'm a newbie to Linux. I've set up samba as a file and print server
successfully and it works fine with my Win '95 boxes as clients. Ftp
doesn't work at all. If I try to open an ftp connection from a Win95
box the connection is closed immediately after openning. The
var/log/messages file doesn't show a logon through ftp.
I'd appreciate any help. I'm using Red Hat 5.2.
Thanks, Chuck Landress
------------------------------
From: Malware <[EMAIL PROTECTED]>
Subject: Re: problems setting up SMC Etherez (8416-T) in kernel 2.0.36 (Slackware
distribution)
Date: Sat, 27 Feb 1999 22:50:18 +0100
Hi dave,
you wrote:
> NS8390_init undefined
[...]
> I got the same message using kernel 2.0.30, and I get the same
> unresolved externals when I attemt to load other drivers as well (like
> the ne2000 driver (ne.o))
Use modprobe to load the module or load the module 8390.o. All these
drivers do depend on it.
Malware
------------------------------
From: Malware <[EMAIL PROTECTED]>
Subject: Re: Problems with DNS & Firewall
Date: Sat, 27 Feb 1999 23:18:46 +0100
Hi Bj�rn,
you wrote:
> ipfwadm -I -a deny -W ippp0 -P tcp -D $FW_IP 1:1023
> ipfwadm -O -a deny -W ippp0 -P tcp -S $FW_IP 1:1023
> ipfwadm -I -a deny -W ippp0 -P udp -D $FW_IP 1:1023
> ipfwadm -O -a deny -W ippp0 -P udp -S $FW_IP 1:1023
Here you deny any packets from ports below 1024 or to traveling via
ippp0. Put these rules next to the end of your script.
> #
> ipfwadm -I -a accept -W ippp0 -P udp -D $FW_IP domain nameserver 51
> ipfwadm -O -a accept -W ippp0 -P udp -S $FW_IP domain nameserver 51
ipfawdm -I -a accept -W ippp0 -P udp -D $FW_IP $DNSPORT -S 0/0 domain
ipfawdm -O -a accept -W ippp0 -P udp -S $FW_IP $DNSPORT -D 0/0 domain
ipfawdm -I -a accept -W ippp0 -P tcp -D $FW_IP $DNSPORT -D 0/0 domain -k
ipfawdm -O -a accept -W ippp0 -P tcp -S $FW_IP $DNSPORT -D 0/0 domain
where DNSPORTS is set to the port your nameserver is using for outgoing
request. This will be 53 for bind 4.9.x but might be another port for
bind 8.x (it is configurable there). Clients from your local net then
have to use the nameserver on your firewall as "proxy".
> ipfwadm -I -a accept -k -P udp -S any/0 domain \
> -D $FW_IP domain
> ipfwadm -O -a accept -P udp -S $FW_IP domain \
> -D any/0 domain
Looks like a bogus trial to apply same logic as for TCP streams to UDP.
The option "-k" does make no sense with UDP. If ipfwadm does accept this
I would not be sure what it does.
> ipfwadm -A in -a -W ippp0 -P tcp -D $FW_IP www
> ipfwadm -A out -a -W ippp0 -P tcp -S $FW_IP www
What's this? ipfwadm and ipchains syntax all together.
For a server use:
ipfwadm -I -a accept -W ippp0 -P tcp -D $FW_IP www
ipfwadm -O -a accept -W ippp0 -P tcp -S $FW_IP www -k
For a www-proxy on the firewall use:
ipfwadm -I -a accept -W ippp0 -P tcp -D $FW_IP $WWWPORTS -S 0/0 www 8080
-k
ipfwadm -I -a accept -W ippp0 -P tcp -S $FW_IP $WWWPORTS -D 0/0 www 8080
Where WWWPORTS is empty or the port range the www-proxy might use (e.g.
"1024:4099").
Malware
------------------------------
From: [EMAIL PROTECTED] (Juergen Heinzl)
Subject: Re: domain with remote hosts?
Date: Sat, 27 Feb 1999 19:43:21 GMT
In article <7b91bp$f99$[EMAIL PROTECTED]>, [EMAIL PROTECTED] wrote:
[...]
>be a host on her domain (she has FreeBSD).
>
>ie. she is (lets say) thinker.blah.net
> I want to be einstein.blah.net
>
>I have a static IP address from my ISP, but it is not on the same Class-C as
>her's. We can probably talk to the ISP and get our IP's on the same Class-C
>if that would do it.
>
>Could anyone please give me some insight into what has to be done.
You ought not do that. You friend is in *no way* authoritative for
the zone blah.net and *nor has anyone delegated that zone* to your friend.
Cheers,
Juergen
--
\ Real name : J�rgen Heinzl \ no flames /
\ EMail Private : [EMAIL PROTECTED] \ send money instead /
\ Phone Private : +44 181-332 0750 \ /
------------------------------
From: [EMAIL PROTECTED] (Miguel Cruz)
Crossposted-To:
vmsnet.networks.misc,microsoft.public.windowsnt.domain,comp.unix.solaris,comp.os.os2.networking.server,comp.os.ms-windows.nt.admin.networking,comp.infosystems.www.servers.unix,comp.protocols.tcp-ip.domains
Subject: Re: Machine name themes - what do you use?
Date: 28 Feb 1999 05:17:05 GMT
None <[EMAIL PROTECTED]> wrote:
> I name my machines "Big Muddy", "Revenge of the Nerds", current machine is
> "ancien regime".
> I guess I like something different.
My guess was that you really like to type a lot.
miguel
------------------------------
From: "GN" <[EMAIL PROTECTED]>
Subject: Linux----->W98----->modem------>internet
Date: Sat, 27 Feb 1999 23:12:10 +0100
HI !
I.m up to a little problem :|
I have a network with 2 computers and the first one is a Linux system
(Redhat 5.2) and the second one is a PC with W98.
And my question is as follow.
1. Can a connect to the internet with my linux comp by going trough my
win98computer who already is connected to Internet via modem?
If any1 can send me to the right spot where to find this information i�ll be
graetful.
/GN
[EMAIL PROTECTED]
------------------------------
From: "Prutser" <[EMAIL PROTECTED]>
Subject: Re: Compiling ppp-2.3.5
Date: Sat, 27 Feb 1999 23:26:43 +0100
>It all comes down to this:
>In file included from sys-linux.c:68:
>../include/linux/ppp_defs.h:97: parse error before `ext_accm'
>../include/linux/ppp_defs.h:97: warning: type defaults to `int' in
>declaration of `ext_accm'
>../include/linux/ppp_defs.h:97: warning: data definition has no type or
>storage class
>../include/linux/ppp_defs.h:113: parse error before `__u32'
>
>The line in ppp_defs.h looks like this:
>/*
> * Extended asyncmap - allows any character to be escaped.
> */
>
>typedef __u32 ext_accm[8];
>--followed by alot of declarations of type __u32
I'm having the same problems using redhat 5.1 upgraded to 2.2.1. Please help
this guy!
------------------------------
From: Jabal Raval <[EMAIL PROTECTED]>
Crossposted-To:
comp.unix.solaris,comp.infosystems.www.servers.unix,comp.protocols.tcp-ip.domains
Subject: dhcp on solaris
Date: Sun, 28 Feb 1999 00:40:24 -0500
hello!
How can I configure my sparc4 running solaris 2.6 to become a dhcp
client??
thanks,
[EMAIL PROTECTED]
------------------------------
From: "Duane Elmer Smeckert" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.help,comp.os.linux.misc,comp.os.linux.setup
Subject: Re: domain name reg and IP setup
Date: Sat, 27 Feb 1999 14:57:46 -0800
My apologies, I was being loose with the terminology
in order to make it less complicated. I meant site to
include the whole domain, not just the web server.
I was assuming that he would be supplying his own DNS.
I guess it's true what they say about assuming. ;)
Rod Roark wrote in message <7b9jor$8cf$[EMAIL PROTECTED]>...
>PTW <[EMAIL PROTECTED]> wrote:
>>...
>>The InterNIC requires that your server be up continuously
>>in order to maintain the name. They do have an actual
>>time that the named site can be down before they suspend
>>it.
>
>Um, you don't register a "site" with InterNIC. The only machines
>you have to identify to them are the name servers, which will
>normally be maintained by your ISP... those have to stay up.
>
>-- Rod
>----------------------------------------------------------------------
>Sunset Systems Preconfigured Linux Computers
>http://www.sunsetsystems.com/ and Custom Software
>----------------------------------------------------------------------
------------------------------
From: Ed Finch <[EMAIL PROTECTED]>
Subject: Re: Network Traffic Monitoring?
Date: Sat, 27 Feb 1999 18:32:37 -0500
"Robert A. Wicks" wrote:
>
> Does anyone know of any tools for monitoring the total traffic on a
> network? My Ethernet card is set in promiscuous mode by arpwatch, and
> this gives me the mac addresses and IPs on my subnet, but I would like to
> know how much bandwidth is being used, what machines are hogging
> resources, etc. Any assistance is appreciated.
Xni, http://www.xni.com
Regards,
Ed
--
Q: Why do PCs have a reset button on the front?
A: Because they are expected to run Microsoft operating systems.
------------------------------
From: [EMAIL PROTECTED]
Subject: Boot rom burner?
Date: Sat, 27 Feb 1999 23:08:41 GMT
I've got an odd collection of Ethernet cards (some
SMC Ultra Elite 16s, a few generic NE2000s, at least
one 3Com) that are collecting dust. I also have a
good collection of antiquidated 486 boxes, SVGA
cards, etc. I run a small LAN, and would love to
set them up as diskless workstations. I've read
up on how to do this, but can't find any specific
recommendations with regards to hardware (i.e.,
"you'll need ___ type of eprom chips, and the
___ burner from ___." Can anyone offer insight
as to what I need and where I might find it? Thanks!
- Chris
=================================================
R. Christopher Harshman: [EMAIL PROTECTED]
============= Posted via Deja News, The Discussion Network ============
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------------------------------
From: "Duane Elmer Smeckert" <[EMAIL PROTECTED]>
Subject: Re: TCP IP CRS
Date: Sat, 27 Feb 1999 15:44:07 -0800
CRC-16 uses the polynomial generator 11000000000000101
(That is x**16+x**15+x**2+x**0)
The algorithm is simple enough:
1) Take the original frame with the checksum set to 0 (augmented frame)
2) Divide the extended frame by the generator polynomial
11000000000000101 using MOD(2) division to get the remainder.
3) Subtract the remainder from the extended frame from step 1.
It is a simple shift and subtract algorithm.
I lifted it from:<cite>
"Computer Networks" by Tanenbaum, Prentice Hall, 1996, pp187-190
</cite>
Vlad Klimov wrote in message <[EMAIL PROTECTED]>...
>Help ME!
>I am trying to write nice program.
>I need to generate 3 packets of tcp ip and sent it myself.
>And i do it.
>But CRS of header is incorrect.
>Please help me.
>I nee correct function to calculate CRS of TCP IP packet.
>Language - C.
>OS - Debian Linux
------------------------------
From: "Ger Donners" <[EMAIL PROTECTED]>
Subject: Re: Replacing NT Server with RH5.1..?
Date: Sat, 27 Feb 1999 22:07:14 +0100
Domainlogins work on Samba without a NT server just fine. At least it works
for me for several months. 18 people login to a Samba server every morning.
Ger Donners
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: newbe, dial up PPP, busy. SuSE 6.0, KDE
Date: Sat, 27 Feb 1999 15:42:57 GMT
"SteveC" <[EMAIL PROTECTED]> wrote:
> Trying Kppp with all settings put in all I can get out is the modem is busy.
> Trying all the howtos & mini howtos I tried to get minicom up. It
> initializes the modem but then when trying to dial just sits there and times
> out. Neither method actually makes the modem make a noise. Kernel compiled
> ppp enabled.
>
Hi!
I have the same symptoms, and another clue: I have been using kppp on SuSE
5.3 for months, without experiencing this problem. I just installed SuSE
6.2, and as far as I know all interupts, file permissions, and kppp settings
are identical between the two instalations. If I boot in 5.3, no problem.
If I boot 6.0, "Sorry, modem is busy."
Thanks for any insights.
Eric Poulson
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------------------------------
From: "Ger Donners" <[EMAIL PROTECTED]>
Subject: Re: Looking to have my own domain name
Date: Sat, 27 Feb 1999 22:16:34 +0100
My guess is, your Dutch. I use Interned services. They provide a variety of
services. We have a domainname and 5 email-addresses for 50 guilders a
month. http://www.is.nl
Joseph K. Vossen wrote in message <[EMAIL PROTECTED]>...
>Rodney Wade wrote:
>>
>> You might try TZO.com they have really good rates i got a subdomain
>> YOUDOMAIN.tzo.net for a dynamic ip for like $20 I think your own domain
>> name might be $50 Internic is for only those that have static ip
>> addresses,(if you go through an isp you might be able to get one but
>> don't count on it). If you go through INTERNIC make sure you go to
>> internic.net, internic.com charges more and everyone has to go through
>> internic.net it's $70 for 2 years
>
>you do not need a static IP for your own domain; your ISP should be able
>to set up a "blind forward" such that all traffic to your.domain will
>get forwarded to your ISP account. When I set my domain up back in '97,
>it cost $50.00 for the setup fee and $50.00/year, with a 2 year
>minimum. My ISP (mindspring) handled the "work" in dealing with the
>Internic; it was worth the $$ for them to do that.
------------------------------
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