Linux-Networking Digest #461, Volume #10 Thu, 11 Mar 99 20:13:44 EST
Contents:
Re: cracker using su on account nobody ([EMAIL PROTECTED])
Re: routing tables - just being curious ([EMAIL PROTECTED])
Re: Machine name themes - what do you use? (Robert Angelino)
Is a caching DNS+Proxy server really worth with a callback connection (Erwann
CORVELLEC)
Re: Linux programming jobs? (Glen Wiley)
Non-Winmodem problems! Help! ([EMAIL PROTECTED])
Re: Cant get that ppp link running (Clifford Kite)
netscape-4.5-preferences (=?iso-8859-1?Q?Fran=E7ois?= Patte)
Re: pppd 2.3.5 dies sometimes on 2.2.x at startup ("Paul")
Changing NICs (Wayne Chunn)
FAQ Server ("Phil Massyn")
Re: samba slow network 8kps using NE2000 ISA cards ("DiNo")
Re: How do I stop netscape from popping up "Repost from data?" window when I press
reload???? (Matthew Bafford)
Re: KDE Networking tools ("dooogh!")
Re: isdn compile error - help (King)
Re: Can I shutdown linux remotely? (Stone)
Re: Machine name themes - what do you use? (tony mazur)
Re: Machine name themes - what do you use? (Andrew C. Ohnstad)
Re: isdn compile error - help ("Stein Magne. Bjorklund")
----------------------------------------------------------------------------
From: [EMAIL PROTECTED]
Crossposted-To: redhat.rpm.general
Subject: Re: cracker using su on account nobody
Date: Thu, 11 Mar 1999 18:01:53 GMT
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Gregory G. Woodbury) wrote:
> Jason Keyes <[EMAIL PROTECTED]> shaped electrons to say:
>
> >Re-install. Many of the hack-kits being used these days will replace
binaries
> >on your system. Some of the affected binaries may include tcpd, inetd,
login,
> >ps, su, ping, traceroute, netstat, etc. The only way you have a chance of
> >being able to really know what is going on is to do a re-install.
>
> While this is a "Good Idea" (TM) it isn't an absolute requirement, the
> RPM has a "verify" option that can do a first level job of checking MD5
> checksums for installed packages. It's relatively easy to set up a script
> that regularly verifies packages and mails the results to the admin account.
>
> First, generate a list of all the packages you have installed:
>
> rpm -q -a | sort > /usr/local/lib/rpmd5.pkgs
>
The problem is that rpm will only verify against the local database.
So conceivably the rootkit could come as an RPM, or as a series of RPMS
and update the database. I'd like a means to tell rpm
Verify the list of packages that you have on the local machine, but
use the rpm database on the CD-ROM (or network location) for the MD5
sums and so on.
I'd also like a means to force update of all currently installed packages.
Right now, this is non-trivial because of the dependency problem. E.g.
if I've got Foo-2.1.3 that depends on Bar-1.1.7, and the new version of
Foo depends on Bar-2.03, then I have to upgrade Bar before I can upgrade Foo.
When dealing with 50 redhat boxes in different configurations, this can
get yucky in a hurry.a
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------------------------------
From: [EMAIL PROTECTED]
Crossposted-To: comp.os.linux.help
Subject: Re: routing tables - just being curious
Date: Thu, 11 Mar 1999 18:01:03 GMT
In article <7c66sk$eab$[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Andy Jaworski) wrote:
> Hi there,
>
> I have been struggling a little with my very small home network. I have
> only two machines. The Linux box has a small Win98 partition (dual boot).
> The other box is Win95 OSR2. They are both connected through a crossover
> twisted-pair cable. The Linux box also has PPP configured.
> The IP addresses of both machines are 192.168.48.1 and 192.168.48.2.
>
> Now, without PPP running i get the following output from the "route -n"
> command
>
> Destination Gateway Genmask Flags Metric
> Use Iface
> 192.168.48.1 0.0.0.0 255.255.255.255 UH 0
> 0 eth0
===> this one is implicit and should not appear : it says something like :
"to go to MY eth0 card, please pass thru MY computer"
> 127.0.0.1 0.0.0.0 255.255.255.255 UH 0
> 0 lo
===> same thing : implicit, should not appear
but the route to 127.0.0.0 passing thru 127.0.0.1 is missing !!!
>
> 192.168.48.0 0.0.0.0 255.255.255.255 U 0
> 0 eth0
===> this one is wrong : the mask should be 255.255.255.0 : it should says :
"to go to THE local lan (192.168.48.xxx), pass thru MY eth0 card"
> 0.0.0.0 192.168.48.1 255.255.255.0 UG 0
> 0 eth0
===> this one says : "default route : to go to the world, pass thru my eth0
card", which has no meaning if you have have only two computers on your room
My conclusion is that, when you were installing Linux, you gave a default
route (you should have not) . First thing is to strip all explicit routes you
gave, until you get the following :
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.48.0 0.0.0.0 255.255.255.0 U 0 0 13 eth0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 2 lo
and only that.
The 1st line means : "to go to the local netwrk, pass thru my eth0 card"
The 2nd line means : "to go to the pseudo-internal network (127.0.0.0), pass
thru my looopback (pseudo network) card lo = 127.0.0.1"
check by 'ifconfig -a'
if necessary, run 'ifconfig eth0 inet 192.168.48.1 netmask 0xFFFFFF00'
if RedHat, check the /etc/sysconfig/network* files
>
> My first question is: why is my local host 127.0.0.1 not 127.0.0.0. It has
> been like this from the beginning (i.e. from original installation of
> RH5,2). Does it matter?
> The second question: how did the 192.168.48.0 line get into the routing
> table and what iis it for?
>
> As you can see I am just being curious and try to understand a little more.
> When I fire up my PPP connection, the routing table changes to:
>
> Destination Gateway Genmask Flags Metric
> Use Iface
> 206.156.201.131 0.0.0.0 255.255.255.255 UH 0
> 0 ppp0
> 127.0.0.1 0.0.0.0 255.255.255.255 UH 0
> 0 lo
>
> 192.168.48.0 0.0.0.0 255.255.255.255 U 0
> 0 eth0
> 0.0.0.0 206.156.201.131 255.255.255.0 UG 0
> 0 ppp0
>
> Everything seems to work fine, but in order for this to work I had to add
> "route del default"
> line to my ppp-up script just before the pppd line. Also, I had to add the
> following line
> route add -net default gw `hostname`
> to my ppp-off script.
====> logical : you did have already a "default (0.0.0.0)" route BEFORE
setting up ppp - Thus ppp was unable to set up its own default route.
>
> Is this correct? Unfortunately, for this to work for all users on my Linux
> box, I had to make the route command suid.
>
> Sorry for the longish ramblings. I would appreciate any comments.
>
> Andy
> -----------------------------------------
> Andy Jaworski
> [EMAIL PROTECTED]
>
> Opinions expressed herein are my own and may not represent those of my
employer.
>
>
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------------------------------
Date: Thu, 11 Mar 1999 10:46:26 -0700
From: Robert Angelino <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
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?
Luke Scharf wrote:
> Alan Anderson wrote:
> > I just remembered the first large batch of machines that I had to set up
> > on a network. I showed a terrible lack of creativity, and named them as
> > follows: ALPHA, BETA, GAMMA, DELTA, EPSILON...
>
> We use stars beginning with the letter "A". My boss still hasn't heard
> the end of it (his decision). :)
>
> -Luke
We use major rivers of the world. And yes, this does cause heated debates
sometimes. IN the end I have the final say because I setup the
machines. Also, having machine names which you can't remember
or spell is a problem.... As long as they are short and easy to spell,
I don't care what we name a machine as long as it follows the theme.
--
Robert Angelino
Director of Software Development
High Tower Software Inc.
(949) 852-2233
------------------------------
From: Erwann CORVELLEC <[EMAIL PROTECTED]>
Subject: Is a caching DNS+Proxy server really worth with a callback connection
Date: Thu, 11 Mar 1999 19:11:58 +0100
Hi Tux-ers !!!
We are going soon to be connected to the Net as in the following DMZ:
CallBack -- FireWall (Linux 2.2) -- Private network
PPP router | (5 machines masqueraded by the FW)
|
WWW server
We would like to reduce the phone bill so is it really worth installing a caching DNS
and/or proxy ?
I thought to install Bind on the WWW machine and Squid on the FW machine, am I right ?
Thank you for your help ! :)
ECO.
~~~~
------------------------------
From: Glen Wiley <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.development.system,comp.os.linux.development.apps
Subject: Re: Linux programming jobs?
Date: 11 Mar 1999 18:19:16 GMT
In comp.os.linux.development.apps Keith Peterson <[EMAIL PROTECTED]> wrote:
: Sorry to say, but if you really want to become a programmer, you will have
: to expand your Windows programming experience. If you are looking for
: Unix/linux-only work, you are limited mostly to industrial and simulation
: environments. My work currently involves programming on a three tier
: environment - Unix, VAX, and Windows (mostly Designer/Developer 2000).
Have you looked at the HUGE number of UNIX only jobs in the US. There
is a severe shortage of engineers that can work with UNIX but can't
spell Microsoft. I switched to all UNIX development years ago
and have never looked back.
<snip>
--
Glen Wiley [EMAIL PROTECTED]
Senior Software Engineer http://www.wwa.com/~gwiley/glen
3Com - Carrier Systems R&D
"UNIX _IS_ user friendly, its just picky about who its friends are."
Any statements or opinions expressed by me are mine exclusively
and have nothing whatsoever to do with my employer...
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To: comp.os.linux.setup,comp.os.linux.hardware
Subject: Non-Winmodem problems! Help!
Date: Thu, 11 Mar 1999 18:14:25 GMT
Greetings: I recently purchased a non-WinModem 3Com/USR 56K modem that I am
trying to set up on my linux box. Currently, I have a 28.8K USR Sportster
internal modem, and that has been working splendidly without problems.
However, when I install and try to set up the 56K modem, diald (which I am
using for dial-up) fails to initialize the modem. I have tried setting up the
modem on /dev/cua0, /dev/cua1, & /dev/cua2, but have not had any luck. It
seems to me that the problem might be in the modem initialization string, but
I thought that these were all pretty much the same, especially for modems
made by the same manufacturer? Please, can anyone help?? Thanks!!
Justin
(send email to [EMAIL PROTECTED])
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------------------------------
From: [EMAIL PROTECTED] (Clifford Kite)
Subject: Re: Cant get that ppp link running
Date: 11 Mar 1999 11:32:46 -0600
Olivier Hislaire ([EMAIL PROTECTED]) wrote:
: Hi there,
: last year I made a ppp link between two linux hosts, in no time. Now,
: I just wanna do the same think and I can't. Could anybody help ?
: Originator runs kernel 2.0.34, the other one 2.0.0. Both use ppp
: 2.2.0. When I call:
First get ppp-2.3.6 and use it with the one using the 2.0.0 kernel. Read
the linux/Documentation/Changes file. Then get back to us.
--
Clifford Kite <[EMAIL PROTECTED]> Not a guru. (tm)
/* Editing with vi is a lot better than using a huge swiss army knife. */
------------------------------
From: =?iso-8859-1?Q?Fran=E7ois?= Patte <[EMAIL PROTECTED]>
Subject: netscape-4.5-preferences
Date: Thu, 11 Mar 1999 19:33:14 +0100
Bonjour,
I have installed netscape 4.5 with linux rh 5.2 and I have some problems
with the configuration:
1- the messenger gets the mail automatically: how can I stop this, if
I'm not connected to internet and want only read or write a mail,
netscape complains and sometimes doesn't work at all and I must exit.
2- I can't use the sorting ascending or descending as I wish: the mail
is sorted descending some news are sorted ascending and I can't change
this. In previous versions I could choose.
3- for downloading I have created a directory "download" and gave the
path /home/patte/download/ to netscape but its refuses to use it and
download with default path /home/patte/ . In preference.js file the
correct path is setted but netscape doesn't use it!
Thank you.
-- Fran�ois Patte. UFR de math�matiques et informatique.
45 rue des St P�res. 75270 Paris Cedex 06
Tel: 01 44 55 35 59 -- Fax: 01 44 55 35 35
http://www.math-info.univ-paris5.fr/~patte
------------------------------
From: "Paul" <[EMAIL PROTECTED]>
Subject: Re: pppd 2.3.5 dies sometimes on 2.2.x at startup
Date: Thu, 11 Mar 1999 13:34:26 -0500
Try turning on debugging for pppd (man pppd) and monitor the
/var/log/messages file for a clue.
Rob Somerville wrote in message <[EMAIL PROTECTED]>...
>about 40 % of time pppd dies just after connect made. anyone with any
>ideas ?
>I believe this also occasionaly happened on 2.0.36. I get message
>"pppd really did die".
>
>please also respond to email address, thanks
>--
>robert somerville
>[EMAIL PROTECTED]
>[EMAIL PROTECTED]
------------------------------
From: Wayne Chunn <[EMAIL PROTECTED]>
Subject: Changing NICs
Date: 11 Mar 1999 18:31:44 GMT
I want to replace my NIC. What will I have to do to get Linux to see the
new card? Same question for adding additional CD-ROMs and Hard Drives.
Thanks,
Wayne
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------------------------------
From: "Phil Massyn" <[EMAIL PROTECTED]>
Subject: FAQ Server
Date: 11 Mar 1999 19:10:00 GMT
Good day Linuxers!
I'm busy programming a FAQ server in Perl. Feel free to post questions
(and answer them, if you can) to http://www.useless.co.za/faq
Please note, this server is still in BETA, and might crash. Also, if you
manage to hack it, don't feel good about it. I'm still working on it.
Regards
Phil
------------------------------
From: "DiNo" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,nl.comp.os.linux
Subject: Re: samba slow network 8kps using NE2000 ISA cards
Date: Thu, 11 Mar 1999 18:55:34 +0100
Hi, here is your solution
bye,
DiNo
#======================= Global Settings
=====================================
[global]
getwd cache = yes
read raw = no
write raw = yes
read size = 65536
read prediction = true
Ralph Wesseling <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
>I have set up samba so that my windows 98 computer cansee parts of my
>linux computer. File transfer from linux to windows is very, very slow.
>A little tcp viewer says that its only 8-10kps. A few megabytes takes
>minutes to move across. If both machines are in windows this same amount
>of info over the same network cards only takes a matter of seconds. I
>have set samba to read predict=true and set the read size to 8192 instead
>of 2048 (default). Is there anything else I can do? I am assuming that
>this is not normal.
------------------------------
From: [EMAIL PROTECTED] (Matthew Bafford)
Crossposted-To: comp.os.linux.misc
Subject: Re: How do I stop netscape from popping up "Repost from data?" window when I
press reload????
Reply-To: [EMAIL PROTECTED]
Date: Thu, 11 Mar 1999 19:19:00 GMT
On 11 Mar 1999 01:16:10 -0800 in comp.os.linux.misc, you wrote:
-> WHen I press reload, Netscape gives me this window saying "Repost from data?".
-> How do I tell Netscape that I don't want this window to pop up?
1) Goto www.mozilla.org
2) Download the Mozilla source (and supporting libraries)
3) Unpack the source, edit the source to not flash the dialog box.
4) Rebuild Netscape
Viola!
Other than that, you're stuck with it.
-> Thanks.
Hope This Helps!
-> Si
--Matthew
------------------------------
From: "dooogh!" <[EMAIL PROTECTED]>
Subject: Re: KDE Networking tools
Date: Thu, 11 Mar 1999 19:44:28 -0500
If anyone sees anything like this i'm interested too plz post info in this
group (NOT IN PRIVATE E-MAIL) thanks
[EMAIL PROTECTED] wrote in message
<7c9176$e27$[EMAIL PROTECTED]>...
>Hi All, I have been scanning the archives for a useful networking tool,
that
>I am afraid might be right under my nose. I have been using KDE now for a
>week, and I love it so far. Does KDE have anything in it that is like
>Network Neighborhood? A place where I can configure and install networking
>protocols etc. then access other computers? KDE is purported to be
"network
>transparent" so perhaps that is why I can't find it! Anyhow, if not, is
>there a network utility that serves the same function?
>
>~Mark
>Please respond to:
>[EMAIL PROTECTED]
>
>-----------== Posted via Deja News, The Discussion Network ==----------
>http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
------------------------------
From: King <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: isdn compile error - help
Date: 11 Mar 1999 22:31:44 GMT
On the suse.com ftp site there is also isdn.tar.gz. This file got all the
core isdn drivers for your hardware. It got a shell script to update your
kernel.
King
CyberDawg wrote:
>
> hey i am having problems getting my isdn modem (3comimpact) to run on my
> linux box. if you find the solution email me at [EMAIL PROTECTED]
> barazani wrote in message <[EMAIL PROTECTED]>...
> >hi all ,
> >i am a newbe to linux i am trying to install isdn on my linux box .
> >my config is as follows linux redhat 5.2
> >isdn-4k-utils downloaded form ftp suse
> >i gzipped and tarred it and run make config
> >than i get an error copile failed kernel source not found .
> >the path is to /usr/src/linux i checked and there is an "include folder
> >there"
> >what source files sre supposed to be there and hoe can i put them in
there
> ?
> >any help would do .Barazani
> >
> >
>
>
================== Posted via SearchLinux ==================
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------------------------------
From: Stone <[EMAIL PROTECTED]>
Subject: Re: Can I shutdown linux remotely?
Date: Thu, 11 Mar 1999 13:54:47 -0500
telnet to the linux box. The do a who to see what terminal you are. cd /etc and
edit securtty and add that terminal. These are the terminals that are allowed to
log in as root. log out. Then telnet back to the linux box and log in as root.
Now shutdown -h now will work as well as reboot or anyother root command. I do
it to a headless linux box all the time. If you are into security do the same
only use a null modem serial cable connection.
[EMAIL PROTECTED] wrote:
> I have 2 machines; a RH5.1 Linux and a win95. Most of the time I work on the
> Linux from the win95 through OmniX (an application that emulate the X-server
> from Linux). My question is, can I shutdown the Linux from the Win95 side. I
> really dont want to login again on the linux and issue a shutdown command. If
> I recalled it right, I couldnt do that. linux just doesnt shutdown.
>
> Any info is greatly appreciated. Thanks.
>
> p/s: please cc a reply to my mail box.T Q.
>
> -----------== Posted via Deja News, The Discussion Network ==----------
> http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
------------------------------
From: tony mazur <[EMAIL PROTECTED]>
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: Thu, 11 Mar 1999 11:23:34 -0800
Reply-To: [EMAIL PROTECTED]
Similar I use dogs. Anything that has to do with dogs. Dogwood,
dogbyte (notice the y instead of i), doghouse, dogwood (tree), doggone,
doghome, etc..
d:-)
Stuart Nuttall wrote:
>
> >I just remembered the first large batch of machines that I had to set up
> >on a network. I showed a terrible lack of creativity, and named them as
> >follows: ALPHA, BETA, GAMMA, DELTA, EPSILON...
>
> Try *this* for size - before I joined my company (Denis M Clayton), the
> servers were called DMC_NTSx where x was =>1 and <=8!!! They are now named
> after cars:
>
> Mercedes and Bentley - two huge servers
> Jaguar - development server
>
> Our two really old naff IBM servers are called:
>
> Skoda
> Trabant
>
> !!
------------------------------
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
From: [EMAIL PROTECTED] (Andrew C. Ohnstad)
Subject: Re: Machine name themes - what do you use?
Date: Fri, 12 Mar 1999 00:35:35 GMT
> >>
> >>Just curious to know what themes you use for machine names on your
> >>local networks. I've heard of or used some of the following: animals,
> >>fruits, alcoholic beverages, artists, movie stars, & musicians. What
> >>about you? I'm sure there's some birarre ones being used out there....
My main hobby, besides computer stuff, is car stereo. Henceforth:
headunit, frontstage, rearstage, subwoofer, tweeter. Any more machines
and I'll have to get creative. I also have a "cleo," which is named
after the owner's cat as a joke, and a "poof," for a certain machine
which seems to require major work (on the level of a format and reinstall
occasionally) on an almost monthly basis.
=-=Andrew
------------------------------
From: "Stein Magne. Bjorklund" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: isdn compile error - help
Date: Thu, 11 Mar 1999 23:54:31 +0100
King wrote:
>
> On the suse.com ftp site there is also isdn.tar.gz. This file got all the
> core isdn drivers for your hardware. It got a shell script to update your
Hi
Try this. IT works! Precompiled rpm pack.
http://www.terminator.net/linux/isdn.html
> kernel.
>
> King
>
> CyberDawg wrote:
> >
> > hey i am having problems getting my isdn modem (3comimpact) to run on my
> > linux box. if you find the solution email me at [EMAIL PROTECTED]
> > barazani wrote in message <[EMAIL PROTECTED]>...
> > >hi all ,
> > >i am a newbe to linux i am trying to install isdn on my linux box .
> > >my config is as follows linux redhat 5.2
> > >isdn-4k-utils downloaded form ftp suse
> > >i gzipped and tarred it and run make config
> > >than i get an error copile failed kernel source not found .
> > >the path is to /usr/src/linux i checked and there is an "include folder
> > >there"
> > >what source files sre supposed to be there and hoe can i put them in
> there
> > ?
> > >any help would do .Barazani
> > >
> > >
> >
> >
>
> ------------------ Posted via SearchLinux ------------------
> http://www.searchlinux.com
--
__________________________________________________
> Stein Magne. Bj�rklund
> Linux SuperDuper Systemer
> E-mail: [EMAIL PROTECTED] / [EMAIL PROTECTED]
> Tel: +47 77665521 / +47 77686702
> Norge/Norway
___________________________________________________
------------------------------
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End of Linux-Networking Digest
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