Linux-Networking Digest #969, Volume #9 Fri, 22 Jan 99 15:13:25 EST
Contents:
Re: slow network when connected with internet (Francesc Guasch)
Re: Hi, (Tom)
Re: Linux server on small network (Lee)
YP-client and SuSE6.0 Problem (Thomas Stieler)
Re: NFS Trouble (Chris Schwarz)
DNS problem with linux gateway (Nortel)
Re: Ethernet connection not working (Francesc Guasch)
Re: PPP doesn't work when eth0 is active ([EMAIL PROTECTED])
Re: Wardialer War Dialer WARDIALER WARDIAL windows95 windows98 (Matthias Warkus)
The answer to your Cable Modem problems (okdj)
Re: Firewall or IPMasq or Both: Need Recommendation (Matt Kressel)
----------------------------------------------------------------------------
From: Francesc Guasch <[EMAIL PROTECTED]>
Subject: Re: slow network when connected with internet
Date: Thu, 21 Jan 1999 14:30:39 +0100
Francesc Guasch wrote:
>
> Hi I have a linux server with samba for a small network.
> Once in a while it connects to internet with for mailing
> and webbing.
> When it happens, the internal network slows a lot.
> It takes a loooong time to establish a connection with
> the server when the ppp is loaded.
I searched the web but It still doesn't work, please, check
what I've done because I think I'm missing a little thing I
just can find ( I've been trying hard but I'm not very smart)
- I have added a entry in /etc/hosts the PCs in the network.
- I checked hostname and domainname so they contain my own domain,
that only exists inside.
- I have not a DNS server running inside.
- I have this in my /etc/resolv.conf ( nothing else )
nameserver 147.83.2.3 # my real name server.
It still happens: when I do a ping to a computer inside
it first tries to verify the name in the DNS.
When It's not in internet it returns instantly because
it can't reach the network.
I guess I must tell that first look /etc/hosts before
trying DNS but I don't know how. I checked the resolver
man unsuccessfully.
please please, I'm about to get it , I can feel it .. 8)
--
mailto:[EMAIL PROTECTED] http://www.etsetb.upc.es/~frankie
^-^.-----,
o o _ ) Errors, like straws, upon the surface flow;
Y (_, (__(Ssss He who would search for pearls must dive below.
------------------------------
From: Tom <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.misc,comp.os.linux.x,comp.os.linux.admin,comp.os.linux,comp.security.unix,comp.unix.bsd.misc,comp.os.ms-windows.nt.admin.security,comp.security.firewalls,comp.security.misc
Subject: Re: Hi,
Date: Thu, 21 Jan 1999 09:27:36 -0500
Umm I think you should know that logging a username and ipaddress
at a certain time and point is and has been going on at many ISP's
large and small for many years now....
For instance, using radius, which alot of ISP's use, that gives you the date,
username, ipaddress used., their connect and disconnect times.
Tom
Steve Romero wrote:
> If you can get this guys IP he may be easier to catch than you would think. A
> lot of serious ISPs are starting to implement a new version of Cisco Secure
> Access Server that logs usernames as they acquire an ip address when dialing
> into a modem pool.
>
> zzzzz Remko wrote:
>
> > Hi,
> >
> > I am setting up a network server in a student home. This server, a linux
> > redhat with apache, is connected to a firewall to the internet..
> > I had some problems lately and found out that someone is trieing to hack
> > his way into my system...
> > His atack is diferent everytime..
> > Now my guestion is...
> >
> > How can i test my system myselve..
> > I have one computer that is not behind the fire wall so i can hack
> > myselve in my own system-computer to test the fire wall.
> > A am lurning a lot but it is not easy, never told it was easy...
> > For me it is a project to get it running wihout problems, i was
> > managing ok sofar, until mister hacker came along.
> >
> > I tried to get some programs. But most of the time hard to get..
> >
> > Does anyone have some programs or links to programs that test ports,
> > sniff, maybe test ipspoofing problems, programs running on a port i
> > forgot about... Just a program that looks for holes...
> >
> > Does something like that exist?
> > What do you recomend...
> > Maybe you can send it to me...
> >
> > Thanks a lot..
> >
> > Remko..
> >
> > By the way is there a way to stop a hacker trieing?
> >
> > ------------------------------------------------------------------------
> >
> > Remko Leupen <[EMAIL PROTECTED]>
> >
> > Remko Leupen
> > <[EMAIL PROTECTED]>
> > HTML Mail
> > Netscape Conference Address
> > Netscape Conference DLS Server
> > Additional Information:
> > Last Name Leupen
> > First Name Remko
> > Version 2.1
------------------------------
From: [EMAIL PROTECTED] (Lee)
Crossposted-To: uk.comp.os.linux
Subject: Re: Linux server on small network
Date: Thu, 21 Jan 1999 21:15:30 GMT
In article <[EMAIL PROTECTED]>
[EMAIL PROTECTED] "Andrew Taylor" writes:
> I've just put a new network together at home it's only 3PC's but it does
> what I need. I have two windows machines sharing a monitor and the linux
> machine sits across the other side of the room without a keyboard or
> monitor. The linux machine is all set up but I find that the windows telnet
> program is no good for dealing with PICO etc if I have to change a
> configuration. Can anyone suggest a Windows program which can do full screen
> colour terminal logins ? I really want to use BitchX under linux as well.
I use a program called CRT for Telnetting to our Linux server from a
Windows client.
It is available from www.tucows.com
Just go to the Windows apps / Telnet.
It runs full screen, full colour really well.
______________________________________________________________________
Digital Networks United Kingdom www.dnuk.com
Linux and NT workstations. TCP/IP workgroups. Windows desktop systems.
You will need to visit www.dnuk.com to obtain my email address if you
read this on Usenet (select Contact at top of web site screen)
------------------------------
From: Thomas Stieler <[EMAIL PROTECTED]>
Subject: YP-client and SuSE6.0 Problem
Date: 22 Jan 1999 17:05:23 GMT
Hello,
We have a problem using ypclient on SuSE Linux 6.0.
In our /etc/passwd we have lines like
+stieler:::::/home/tim/stieler:/bin/bash
On the YP-server the homedirectory is /home/fix/stieler, and I use a
tcsh.
Our other linux-computers (SuSE 5.3) change the homedir and shell
without any problem, but on a new installed SuSE 6.0 after a login the
homedirectory is still /home/fix, and the shell is a tcsh.
Has anybody a hint how so solve this nasty problem??
Regards,
Thomas
--
============================================================================
Dipl. phys. Thomas Stieler [EMAIL PROTECTED]
Drittes Physikalisches Institut
B�rgerstr. 42-44 --- 37073 G�ttingen
Tel.:(0551)397742 --- Fax:(0551)397720
Privat:
Kurze Str.15/12 --- 37073 G�ttingen --- Tel.:(0551)485603
============================================================================
------------------------------
From: Chris Schwarz <[EMAIL PROTECTED]>
Subject: Re: NFS Trouble
Date: Thu, 21 Jan 1999 14:39:58 +0000
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Pierre Baudracco wrote:
> Alex Smtih wrote:
> >
> > I am having problems exporting directories on my Linux box. I am
> > running RedHat 5.2 (2.0.36)
> >
> > I've read through the man pages (several times) and I am not having any
> > luck. The problem is not exporting the file systems, but mapping the
> > UID/GID. I can't seem to over ride the default all_squash property
> > which maps all UID's to nobody. I am using entries in my export file
> > that look like this:
> > /path (rw,no_root_squash)
> > /path2 host(rw,no_root_squash)
> >
> > Neither work in regards to UID mapping. I have RW access, but as nobody
> >
> > that is pretty useless.
> >
> > By the way, Yes I am restarting mountd and nfsd.
>
> Hi,
>
> I'm having the same problem, could you inform me if you get the solution
> personally.
> Thanx in advance,
>
> Pierre
I'm having trouble getting any access at all. I am running RH5.2 and I am
trying to load Caldera on a laptop (because caldera loads the PCMCIA and
network card - there is no cdrom drive on the laptop). The IP of the caldera
nic is 172.18.200.2 (toshiba.dilbertnet)
Caldera will do an NFS install so I copied the install files from the Caldera
cdrom to the RH box (/usr/col) as I heard that using a cdrom as part of the
NFS mount might cause problems (I did have problems).
/etc/exports reads:
/usr/col toshiba.dilbertnet
/usr/col 172.18.200.2
/usr toshiba.dilbertnet
/col 172.18.200.2
I have tried different permutations, just 1 line of text, adding (ro) or (rw)
etc... nothing works. The error message currently reads:
"rpc mount: RPC: Timed out" This is progress, it used to say something
about permissions.
Do you have any suggestions? Any help would be appreciated.
[EMAIL PROTECTED]
--
Please remove the "123" in order to reply.
==============0096AC5D54C0A1DE112F696B
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
Pierre Baudracco wrote:
<blockquote TYPE=CITE>Alex Smtih wrote:
<br>>
<br>> I am having problems exporting directories on my Linux box.
I am
<br>> running RedHat 5.2 (2.0.36)
<br>>
<br>> I've read through the man pages (several times) and I am not having
any
<br>> luck. The problem is not exporting the file systems, but mapping
the
<br>> UID/GID. I can't seem to over ride the default all_squash property
<br>> which maps all UID's to nobody. I am using entries in my export
file
<br>> that look like this:
<br>> /path (rw,no_root_squash)
<br>> /path2 host(rw,no_root_squash)
<br>>
<br>> Neither work in regards to UID mapping. I have RW access, but
as nobody
<br>>
<br>> that is pretty useless.
<br>>
<br>> By the way, Yes I am restarting mountd and nfsd.
<p>Hi,
<p>I'm having the same problem, could you inform me if you get the solution
<br>personally.
<br>Thanx in advance,
<p>Pierre</blockquote>
I'm having trouble getting any access at all. I am running RH5.2
and I am trying to load Caldera on a laptop (because caldera loads the
PCMCIA and network card - there is no cdrom drive on the laptop).
The IP of the caldera nic is 172.18.200.2 (toshiba.dilbertnet)
<p>Caldera will do an NFS install so I copied the install files from the
Caldera cdrom to the RH box (/usr/col) as I heard that using a cdrom as
part of the NFS mount might cause problems (I did have problems).
<p>/etc/exports reads:
<br> /usr/col
toshiba.dilbertnet
<br> /usr/col
172.18.200.2
<br>
/usr
toshiba.dilbertnet
<br>
/col
172.18.200.2
<br>I have tried different permutations, just 1 line of text, adding (ro)
or (rw) etc... nothing works. The error message currently reads:
<br>"rpc mount: RPC: Timed out" This is progress, it used to
say something about permissions.
<p>Do you have any suggestions? Any help would be appreciated.
<p>[EMAIL PROTECTED]
<pre>--
Please remove the "123" in order to reply.</pre>
</html>
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------------------------------
From: Nortel <[EMAIL PROTECTED]>
Subject: DNS problem with linux gateway
Date: Fri, 22 Jan 1999 13:52:46 -0500
My linux gateway with IP masquerade enable has a problem with its DNS
lookup. I have a LAN with 4 Windoze host machines connected to a linux
gateway with IP masquerade configured. The hosts work fine with some
applications like Web and ICQ. However, my linux gateway cannot resolve
internet domain name. I can resolve names within the LAN thru. the
hosts file. Everytime i try "ping www.yahoo.com" there is no reply.
when i try "nslookup", i got the following
*** Can't find server name for address xxx.xxx.xxx.xxx: No response from
server.
xxx.xxx.xxx.xxx is the DNS i use for every host machines.
my resolv.conf has the entry
nameserver xxx.xxx.xxx.xxx
and nsswitch.conf
hosts: files dns
looks like resolver cannot talk to the dns i specified.
Please help.
Thanks
Matthew
------------------------------
From: Francesc Guasch <[EMAIL PROTECTED]>
Subject: Re: Ethernet connection not working
Date: Thu, 21 Jan 1999 15:08:39 +0100
Scallica wrote:
>
> Hi,
>
> I am using Redhat 5.2 with a 3com 509 card. I can't seem to get a connection
> going. Linux has detected the card just fine. I know all my network
> information.
> The card works fine in Win 95. When I try to use DHCP in Linux, it fails. When
> I set it on manual it fails too. I keep getting a message that says something
> like:
>
> eth0: transfer timed out, TX FIFO 1238
>
> Any suggestions? Thank You.
I remember having problems with 3com cards, Make sure to turn the
computer power off after leaving win95 before booting linux.
--
mailto:[EMAIL PROTECTED] http://www.etsetb.upc.es/~frankie
^-^.-----,
o o _ ) Errors, like straws, upon the surface flow;
Y (_, (__(Ssss He who would search for pearls must dive below.
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: PPP doesn't work when eth0 is active
Date: Fri, 22 Jan 1999 18:05:37 GMT
The Eth0 has taken the default route. You need to reset your ppp0 as the
default route. Read the man page for the different options for the route
command.
route add -host <ip of ppp0 connection>
Some variation on that command should do it.
Keith
In article <7890u2$pue$[EMAIL PROTECTED]>,
"jkim" <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I successfully installed a network card and was able to ping other computers
> on the network. However when eth0 is enabled then PPP doesn't seem to work.
> The dialup and connnection is okay but when I try to ping something on the
> internet I don't get any replys. When I disable eth0 then PPP works fine.
> There is some sort of conflict but I don't know why. Please help.
>
> Thanks You
> Jae
>
>
============= Posted via Deja News, The Discussion Network ============
http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
------------------------------
From: [EMAIL PROTECTED] (Matthias Warkus)
Crossposted-To: alt.revenge,alt.music.beastie-boys,comp.os.linux.misc
Subject: Re: Wardialer War Dialer WARDIALER WARDIAL windows95 windows98
Date: Thu, 21 Jan 1999 00:18:56 +0100
Reply-To: [EMAIL PROTECTED]
It was the Wed, 20 Jan 1999 20:13:17 GMT...
..and [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
>
> I only have one thing to say - get it!
> http://www.jps.net/toolarge/wardialer/index.htm
*PLONK*
mawa
--
Matthias Warkus | [EMAIL PROTECTED] | Dyson Spheres for sale!
My Geek Code is no longer in my .signature. It's available on e-mail request.
It's sad to live in a world where knowing how to program your VCR actually
lowers your social status...
------------------------------
From: okdj <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.help,linux.redhat.install
Subject: The answer to your Cable Modem problems
Date: Fri, 22 Jan 1999 19:15:10 GMT
http://metalab.unc.edu/LDP/HOWTO/mini/Cable-Modem.html
Paul Tiseo wrote:
>
> Well,
>
> All is good in linux land for me. All I have left (which is
> apparently the source of much pain to newbies) is sound and networking.
> So, here's a few questions for the more experienced:
>
> 1. Do I need to include PPP and SLIP in my kernel if I have
> the one-way Mediaone cable modem whenever I get around
> to a kernel recompile?
>
> 2. When I create an interface entry in the Network Configurator
> in RH5.2, it never seems to activate. Why?
>
> 3. I looked into the DHCP HOWTO as it seems to be rather
> important for cable modems. (Got that out of the cable modem
> mini-HOWTO) The first thing one must do replace rc.inet1 in
> /etc/rc.d with a new script. Problem? I don't seem to have an
> rc.inet1 to replace! Does it have to do with an incomplete
> networking installation?
>
> So many questions, so little time...
>
> -----------------------
> Paul Tiseo
> [EMAIL PROTECTED]
--
==========Visit me at http://www.moltenwax.com==========
I think I just downloaded in my pantz.
------------------------------
From: Matt Kressel <[EMAIL PROTECTED]>
Subject: Re: Firewall or IPMasq or Both: Need Recommendation
Date: Fri, 22 Jan 1999 18:47:57 GMT
[EMAIL PROTECTED] wrote:
>
> This may not be the most appropriate group to post this question, but I am
> sure enough list members have the experience to point me in the right
> direction.
>
> I have a small ISP that I need to make some changes and I am not sure that the
> FWTK is the best/correct approach. First let me say that my main problems is
> that I do not have enough IP addresses from my provider. I need more. I
> thought be using FWTK that would be the best solution. Now I am not so sure...
>
> I am concerned about security, although it is not the main reason for
> considering FWTK; shortage of IP's are, BUT I am planning to change my
> provider and I do NOT want to have to have my clients re-ip when I change...
> I have looked at IPmasqurade and that looks fine except it does not support
> inbound connections (right?)
>
> Anyway, If somebody can give me some guidance on which way to go I would
> greatly appreciate it. I need basic services to work inbound and outbound
> with minimum customization, if at all possible. I have read the RTFM until I
> am blue in the face and am now totally confused. I technically can implement
> most of the options, but which one is the most appropriate has got me
> baffled!!!
>
That other reply was a moron. OK...
IP masquerading will make many hosts appear as one host to your provider
which is what you want. Internally, you can use whatever configuration
you want, but most people use 192.168.x.x so it doesn't interfere with
real IPs. Your customers need static IPs? Well firstly your clients
are probably getting different IPs when they connect each time,
correct? If so, then how will changing ISPs affect them? True, you can
not connect to the internal machines from the outside with the
masquerading firewall, but would you want to? Your customers will still
be able to do all the things they like to do like FTP, telnet, WWW,
RealAudio, etc. Just make sure that you have the appropriate
masquerading modules in the kernel and you should be OK. More details
may help as well.
HTH,
Matt
--
Matthew O. Kressel | INTERNET: [EMAIL PROTECTED]
+--------- Northrop Grumman Corporation, Bethpage, NY ---------+
+--------- TEL: (516) 346-9101 FAX: (516) 346-9740 ------------+
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