Linux-Networking Digest #134, Volume #12 Fri, 6 Aug 99 15:13:45 EDT
Contents:
Re: IP Masquerading and IPMASQADM (root)
networking core dumps ([EMAIL PROTECTED])
Will I ever be able to use Linux at all?? HELP! (Pedro Couto e Santos)
NFS and RedHat 6 ("Bil Dunn")
Re: Thanks folks! PPPD works on Demand! (Frederick Paul Suedmeyer)
Re: SAMBA, Linux, Win98 (Ben Short)
Re: LAN with Cable Modem - HELP! ("Robert Glover")
Re: Printing on Novell Netware Printer? (Gustin Kiffney)
Dual network interface card questions ("hcuta")
Re: Samba, encrypted passwords ("gonZo theGreaT")
Re: users can't mount cdrom (Leonard Evens)
Re: Samba, encrypted passwords ("David Murray")
Re: Help!!!! (Monte Phillips)
Re: PPTP won't authenticate through ipmasq (Dave Kristol)
Re: Need networking and Inet help.. ([EMAIL PROTECTED])
Re: Kill -9 won't kill a process (Joseph Crowe)
Re: ipchains + www.linuxrouter.org = firewall messages ("Robert Glover")
Re: ISDN success? (Simon Kool)
Re: 12 Step Plan ("Trevor Porter")
----------------------------------------------------------------------------
From: root <[EMAIL PROTECTED]>
Subject: Re: IP Masquerading and IPMASQADM
Date: Fri, 06 Aug 1999 17:17:51 GMT
Braden Walters wrote:
> I am running kernel 2.2.10 with IP_MASQ options configured. However,
> any command I type into ipmasqadm results in an error message:
>
> dlopen(): file not found
>
> Can anyone tell me what I am missing, or at least point me in the right
> direction?
>
> Thanks in advance.
I'm using kernel 2.2.6 with ipmasqadm recompiled for PPCLinux R5
You will find most of the dox are out of date regarding port forwarding.
Try this
ipmasqadm portfw -a -P <all,tcp,udp> -L <your internet_IP> src_port -R
<your internal IP> dest_port
eg to forward a telnet connection
ipmasqadm portfw -a -P tcp -L 203.6.5.1 23 -R 192.168.1.3 23
------------------------------
From: [EMAIL PROTECTED]
Subject: networking core dumps
Date: Fri, 06 Aug 1999 17:21:33 GMT
Hello,
I seem to be getting core dumps everytime I do a telnet or ftp to a
named host (not the ones specified in my hosts file). I can telnet or
ftp to an IP address. I can't even ping a named host!
Now I do have dns set up and nslookup works. My nsswitch.conf file
points to dns for host lookup.
I am using redhat 6.0.
Does anyone have any idea why telnet/ftp/ping dumps core?
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: [EMAIL PROTECTED] (Pedro Couto e Santos)
Subject: Will I ever be able to use Linux at all?? HELP!
Date: Fri, 06 Aug 1999 15:48:22 GMT
Hi.
I've just installed Suse 6.1 and I'm all happy and fuzzy about it...
trouble is... I can't connect to the internet. I have absolutely no
CLUE at all as to what to donext... I have a Cardinal MVP2888I Modem.
I try using yast to configure it but it doesn't work(?)
It keeps returning a 0.0.0.0 IP adress...
I used kppp to connect and it does, but then freezes and I can't
e-mail or Netscape at all...
I used kppp's modem diag and sometimes it returns all the data,
including modem name and model, while other times it just reports a
"modem not responding"...
I am so very disappointed, can anyone help me?
thanks
Pedro Couto e Santos
------------------------------
From: "Bil Dunn" <[EMAIL PROTECTED]>
Subject: NFS and RedHat 6
Date: Fri, 6 Aug 1999 13:09:16 -0500
I recently installed RedHat 6 on a new server with NFS. I have it
enabled using the exports entry below. I use a RedHat 4.2 server to mount
this drive in /mnt/nfs-web After I installed this new server I can mount
the drive but a few of the directories come up blank. They are there, just
blank. The directories coming up blank are /home /usr and /var.The /etc
directory works fine. I checked all my settings and they are exactly the
same. I don't understand why I can see the content of some directories and
not others. The permissions are set to 755 on the items I'm trying to read.
Anyone with any ideas? Thanks.
/etc/exports
/ xxx.xxx.xxx.xxx(rw,no_root_squash)
/etc/fstab
xxx.xxx.xxx.xxx:/ /mnt/nfs-web nfs
rsize=8192,wsize=8192
Bill Dunn
------------------------------
From: Frederick Paul Suedmeyer <[EMAIL PROTECTED]>
Subject: Re: Thanks folks! PPPD works on Demand!
Date: Fri, 06 Aug 1999 15:38:35 +0000
Andrew Taylor wrote:
> That's exactly what I want to do, could you give me a little further
> explanation or point me to a solution?
Andrew I'm glad to try! But, understand, I'm so new to all this I'm
like a painted wet park bench in a school yard! There are some top
notch people in this news group who will probably laugh at this old
man's process for doing demand dialing with pppd.
I did this using Mandrake 6.0, on an old K-6 266 puter without a network
and a dynamic ISP. I need demand dialing because I retired to a very
remote area of North Carolina and only have a single phone line. And,
my kids ball me out for leaving my modem on all day and night and they
can't reach me to know if my will is going to be read! I forget to
turn it off!
1. Get the best information on PPPD you can! That information comes
from Paul Mackerras. You already have his article, it's in your puter,
to access it type "man pppd" :) Yes, the manual for your ppp daemon!
Take time and read it, I could not understand it! But, start with that
and try reading it several times, it will become clear in a minute!
2. Get a copy of the W. G. Unruh's paper on PPP at:
http://axion.physics.ubc.ca/ppp-linux.txt
or
http://axion.physics.ubc.ca/ppp-linux.html
I printed out the Unruh html instructions and followed them to the
letter because others in comp.os.linux.networking said they were good.
For me, the Unruh paper helped me understand the developer of pppd, Paul
Mackerras.
Also, do something like this before you get the Unruh document. Unruh
will explain this in his work to you.
Bring up a Console and "su" to root! Enter this command:
"tail -f /var/log/messages"
I believe Mandrake 6.0 has "/var/log/messages" already in place for you
to read? Unruh will have you setup a "/var/log/ppp". I did not see any
need for this since I had "/var/log/messages".
Now, make sure your pppd is down. Bring it up and watch what is
happening in the "messages" console. I used that to narrow down my
problem!
Go through the Unruh paper until you have things working!
One problem happened to me early on in all of this that is important. I
could not connect with my ISP come hell or high water. I blamed
everything and everyone! By accident using MINICOM I discovered that my
modem speed was set to high on my US Robotics external 33.3. For some
reason I used minicom that time at 38.4 and I was able to see what was
happening with my handshaking my ISP. So, I now use "ATZ2" and it
"shakes the hand" of my ISP at 115.2!
Using "linuxconf", the line script, or KPPP, I was able to get things
properly working to bring up PPP0.
Once the PPP0 was working; I saw that with my modem lights and the "tail
console", I felt a little more confident. But, I wanted PPPD without
any overhead from Diald, etc.! Someone in this group gave me the clue
that demand dialing for pppd really happens in /etc/ppp/options. Cool!
So, I went back to the "man pppd" !
It is all there! I don't understand why there is all this software like
EZppp, Kppp, and Diald still around with this new pppd. I think someone
needs to wake up and smell the flowers and hear the birds sing!
This is today's "/etc/ppp/options"! It changes as I try to fine tune
it! When you get demand dialing working tell me what you are using,
please!
__________
# /etc/ppp/options
10.0.0.0:10.0.0.0
ipcp-accept-local
ipcp-accept-remote
# xonxoff
crtscts
defaultroute
#debug
demand
idle 60
persist
lock
# Find a path that captures your heart and follow it to the end!
# The above statement I always use to remind myself of why I'm doing it!
____________
One last note:
As a registered Mandrake 6.0 I wrote them a desperation letter the day
before I got demand dialing for pppd working. The next afternoon I
received a note back from a Mr. F. Grad (Technical Support Team) at
Mandrakesoft telling me he had "some bad news." He stated: "Well, it's
pretty complicated to do this." An he referred me to WWWOffle.
But, my dynamic ISP demand dialing worked by the time I received that
message. By the way, Grad's response does prove that Mandrake is
responsive to their registered customers!
But, the facts are that this is "simple"! Go to "linuxconf" and tell it
to bring up your "ppp0" at boot, tinker with your "options" and click on
a URL!
I really am an old retired clergyman! By the time This posting leaves
my Linux Box, I'll have my fly rod in hand, walking out the door to
catch that Brook Trout for lunch!!!! :)
And, the kid's in Florida can call and leave a message on my machine.
Come to think of it, they will probably think I'm dead because the
phone is not busy! HA! :)
Good Luck!
=========
[EMAIL PROTECTED]
[EMAIL PROTECTED]
ICQ #112187
------------------------------
From: [EMAIL PROTECTED] (Ben Short)
Crossposted-To:
linux.redhat.misc,linux.redhat.install,linux.redhat,alt.uu.comp.os.linux.questions,comp.os.linux.help,comp.os.linux.misc,comp.os.linux.setup
Subject: Re: SAMBA, Linux, Win98
Date: Sat, 7 Aug 1999 02:05:25 +1000
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
says...
> I have a Win98SE machine connected to Linux and everything is working
> except for the SAMBA setup. I followed the SMB-HOWTO but in VMWare the
> only system I see in 'Network Neighborhood' is the Win98SE system. The
> NIC is set to 192.168.2.1 and the Win98SE system is set to the IP
> address of 192.168.2.2.
>
> Here's what I've done so far...
>
> In the /etc/smb.conf file I've changed 'workgroup = Federation'
> also changed 'server string = Linux Samba Server'
> also uncommented 'hosts allow = 192.168.1. 192.168.2. 127.'
> also changed 'security = share'
> and finally added:
> [cdrom]
> comment = Plextor UltraPlex
> public = yes
> writable = no
> path = /mnt/cdrom
>
> Running 'testparm' gave me an OK and I have also manually started
> /usr/sbin/smbd and /usr/sbin/nmbd. Can someone please tell me if what
> I've done is correct so far and how to completely get my Linux PC
> displayed in 'Network Neighborhood'?
>
It hekos to have under the [global] options
workgroup = your_workgroup
thats what I have found the problem to be most of the time
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Ben Short http://www.shortboy.dhs.org
Shortboy Productions mailto:[EMAIL PROTECTED]
*Remove n0spam to email me*
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
------------------------------
From: "Robert Glover" <rglover@air(dot)ups(dot)com>
Subject: Re: LAN with Cable Modem - HELP!
Date: Fri, 6 Aug 1999 17:35:13 -0000
Weifan Lin wrote in message
<[EMAIL PROTECTED]>...
>I want to setup my LAN with cabel modem and I have a static IP from
>@home. I had
>my cable modem running on Win98. Also, I used to have my LAN connect
to
>internet
>through a 56K modem and all my PCs shared the same modem.
>
>I have been trying several things and I still can't ping the DNS or
>gateway
>given by @home. I can ping my LAN and eth1. I think I have the
problem
>setting
>up my routing table. Can someone please give me any help?
>
>Actually, I can see the modem light flashes when I try to ping
>internet's IPs.
>
>Thanks.
>
>(I posted the similar question before but no answer)
[snip]
>#route
>Kernel IP routing table
>Destination Gateway Genmask Flags Metric Ref Use
Iface
>192.168.1.0 * 255.255.255.0 U 0 0 3 eth0
>24.4.0.0 * 255.255.0.0 U 0 0 17 eth1
>127.0.0.0 * 255.0.0.0 U 0 0 3 lo
>default * 0.0.0.0 U 0 0 2 eth1
Did they give you a gateway address? If so, you need to have the
default route send its packets there.
------------------------------
From: Gustin Kiffney <[EMAIL PROTECTED]>
Subject: Re: Printing on Novell Netware Printer?
Date: Fri, 06 Aug 1999 15:11:49 GMT
yes, many people have been able to print to a Netware print
queue using nprint. You don't say what 'properly' means. You can't
print at all, or the print output looks funny? If the latter, check
out metalab.unc.edu/pub/Linux/docs/HOWTO/Printing-Usage-HOWTO.
Generally nprint is just
nprint -S yourserver -U yourusername(.withcontext_if_NDS) -P
yourpassword -q thequeuename filename
[all on one line]. This is taken straight from 'man nprint'.
If you would post the command
line you are using (with edited passwords, of course) and the exact
error message you are seeing, and the version of Netware you are using
(it's different if you are working with a bindery server like 3.x or an
NDS server like 4.x or 5) then perhaps you could get more accurate
help.
[EMAIL PROTECTED] wrote:
>
> Hi,
>
> I have Novell Netware volumes sucessfully mounted using ipx_configure
> and ncpmount. However, I haven't been able to print properly using
> nprint. Has anyone had any success printed on Novell Netware shared
> printers from Linux? I would greatly appreciate any assistance.
>
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: "hcuta" <[EMAIL PROTECTED]>
Subject: Dual network interface card questions
Date: Fri, 6 Aug 1999 11:08:11 -0700
I am getting ADSL in one week. I am debating on moving the server to Linux
and i have a few questions. Can i setup one network card to be a dhcp
server to give out ip's to windows machines on the local network? And while
doing that can i have the other network card i want to be the incoming adsl
card? I want to make sure that i can setup the dhcp server on one network
interface card and have it serve the network and the other run the adsl
incoming connection wihtout conflicting the dhcp information. Is this
possible. I am somewhat familiar with Linux/Redhat and so on but i have
never attempted this before. If anyone has a website or document i should
read up on please tell me also. Thanks.
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======== Over 73,000 Newsgroups = Including Dedicated Binaries Servers =======
------------------------------
From: "gonZo theGreaT" <[EMAIL PROTECTED]>
Subject: Re: Samba, encrypted passwords
Date: Fri, 06 Aug 1999 16:01:55 GMT
> This is the most irritating problem. If I go into the /etc/smb.conf and
> tell it to use encrypted passwords then all the NT systems are able to
> communicate with the Linux box. But then the windows 95 boxes just keep
> asking for the password over and over. If I turn encryption off and
> restart Samba, then the opposite is true. The 95 boxes work fine and Nt
> asks for the password over and over again.. How can I set it up so that
> BOTH 95 and Nt work fine?
> --DavidM
Correct me if I'm wrong, but I think Win95 can not handle encrypted pwds
like NT or Win98 do.
But if it isn't case sensitive you can disable pwd-encryption in Windows 98
and NT4 by adding
the DWOED-entry
EnablePlainTextPassword 0x00000001
to
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\VNETSUP
Maybe there is the other way round to enable encryption in Windoze 95 !? But
I don't know about !
Hope it Helps
Gonzo
------------------------------
From: Leonard Evens <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.misc
Subject: Re: users can't mount cdrom
Date: Fri, 06 Aug 1999 10:10:32 -0500
Jeff Greer wrote:
>
> Thanks for the help, but it still won't work. I need to join a
> LUG or have someone telnet into my machine.
> -------------------------------------------------
> Heres some command line info:
>
> doug > mount -r /dev/cdrom /mnt/cdrom
> mount: must be superuser to use mount
This was his problem. Using the full command in this
form does not consult /etc/fstab where the user information
is kept. But
mount /mnt/cdrom
or
mount /dev/cdrom
works.
> doug > ls /X
> doug > ls -l /bin/mount
> -rwxr-xr-x 1 root root 37672 Oct 6 1998 /bin/mount
> doug > ls -ld /dev/sda1
> brwxr-xr-x 1 root disk 8, 1 May 5 1998 /dev/sda1
>
> doug > umount /dev/cdrom
> bash: /jeff/.bashrc: Permission denied
> [mntent]: line 0 in /etc/fstab is bad
> umount: /dev/scd0 is not in the fstab (and you are not root)
>
> -----------------------------------------------
> my fstab file:
>
> /dev/hda1 / ext2
> exec,dev,suid,rw,usrquota 1 1
> /dev/sda1 /mnt/E ext2
> defaults 0 0
> /dev/fd0 /mnt/floppy ext2
> noauto,rw,suid,user,exec 0 0
> /dev/scd0 /mnt/cdrom auto
> noauto,ro,user,exec, suid,unhide 0 0
> none /proc proc
> defaults 0 0
>
> -----------------------------------------------
> Leonard Evens wrote:
> >
> > Jeff Greer wrote:
> > >
> > > Hello,
> > >
> >
> > You seemed to have got involved in a flame war which as far as
> > I can see is entirely beside the point. I don't know exactly
>
> I thought a flame war involved a lot of insults and pointless
> argument. I'm trying to start a productive argument.
>
> >
> > Have you rebooted---although that shouldn't make any difference?
> >
>
> I'm not going to reboot. My linux box is an important server for
> my
> lan.
>
> > It is not unusual with any OS to find that something which by all
> > rights should work doesn't. I find this happens much more often
> > with Windows, and there it is usually impossible to find out why.
> >
>
> This is a problem in linux because there is not a good set of
> standards in the desktop arena.
> --
> Jeff Greer
> B.S. computer science, University of MO - Rolla
> --------------------------------------------------
> Windows NT has crashed,
> I am the Blue Screen of Death,
> No one hears your screams...
--
Leonard Evens [EMAIL PROTECTED] 847-491-5537
Dept. of Mathematics, Northwestern Univ., Evanston, IL 60208
------------------------------
From: "David Murray" <[EMAIL PROTECTED]>
Subject: Re: Samba, encrypted passwords
Date: Fri, 06 Aug 1999 16:10:33 GMT
Then how come a WIndows 95, 98, or NT box can share files easily with an Nt
server all at the same time? Surely there is a way samba can work with a
mixed environment like this?!
-snip-
> Correct me if I'm wrong, but I think Win95 can not handle encrypted pwds
> like NT or Win98 do.
> But if it isn't case sensitive you can disable pwd-encryption in Windows
98
> and NT4 by adding
> the DWOED-entry
>
> EnablePlainTextPassword 0x00000001
>
> to
>
> HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VxD\VNETSUP
>
> Maybe there is the other way round to enable encryption in Windoze 95 !?
But
> I don't know about !
>
------------------------------
From: [EMAIL PROTECTED] (Monte Phillips)
Crossposted-To: comp.os.linux.setup,redhat.networking.general
Subject: Re: Help!!!!
Date: Fri, 06 Aug 1999 17:51:24 GMT
Damn I'd just LOVE to collect some easy money <G> BUT I don't think
you'll need me or anyone else got to these sites, couple of hours
your up and running. when Samba is up and going if you want
masquerading add these lines into your /etc/rc.d/rc.local file
ipchains -P forward DENY
ipchains -A forward -i ppp0 -j MASQ ->(comment don't add this -i
ppp0 for allowing internet access for clients through modem otherwise
point it at the device that you do use ethx or...)
echo "1" > /proc/sys/net/ipv4/ip_forward
insmod ip_masq_ftp ->(comment allows ftp ports to operate
properly)
This site has a step by step howto for complete setup of samba. steps
for both linux and the win machine. (and they really work <G>)
http://www.sfu.ca/~yzhang/linux/samba/index.html
and this one as well
http://home.talkcity.com/MigrationPath/maguai/samba.html
These sites singly or in combination are nearly guaranteed to get you
networked.
Ian Mentiply <[EMAIL PROTECTED]> wrote:
>Is there anyone in the BOSTON area that is very experienced in the
>Installation and configuration of Redhat v 6 and the configuration of
>SAMBA, if there is let me know I am looking for someone who can come in to
>my company for a day or so the help me set up my print services on LINUX.
------------------------------
From: Dave Kristol <[EMAIL PROTECTED]>
Subject: Re: PPTP won't authenticate through ipmasq
Date: Thu, 05 Aug 1999 17:07:48 -0400
Yousuf Khan wrote:
>
> In article <[EMAIL PROTECTED]>,
> Dave Kristol <[EMAIL PROTECTED]> wrote:
> > I'm having an identical problem, but I've got RH Linux 5.2 (2.0.36
> > kernel). Here's my setup:
> > [...]
> > This configuration does not allow PPTP to work. I've discovered that
> if
> > I configure my default firewall policy for input to the "outside"
> > interface to be "accept" ("ipfwadm -I -p accept" instead of "ipfwadm -
> I
> > -p deny"), then PPTP works from within my firewall. However,
> filtering
> > the incoming packets would obviously be preferable.
> >
> > So the real question is, what incantation is necessary in the firewall
> > setup to make this work. (I fear the answer is, "can't be done
> without
> > as-yet written patches".)
>
> Have you tried adding only the IP address(es) of the outbound PPTP
> server(s) to your acceptance list? Something like "ipfwadm -I -p deny"
> followed by "ipfwadm -F -a ...{localnet}...", followed by "ipfwadm -F -
> a ...{outside PPTP network}...".
Something like that idea occurred to me on the way to lunch, and indeed
it works. Specifically, I made "deny" the default -I policy, then added
this rule:
ipfwadm -I -a accept -W eth0 -S my-pptp-server-address
Dave Kristol
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Need networking and Inet help..
Date: Fri, 06 Aug 1999 15:17:30 GMT
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (iD) wrote:
>
>
> I am a beginner linux user. I bought a book and am currently reading
> it. I installed Redhat 6.0.
>
> I have a PIII with Win98 installed. And a P166 with Redhat 6.0
> installed. I have the computers networked. I want to setup linux so
> that it can use the dialup connection on my 98 machine (I know,
> hooking a line up to the linux machine would be easier, but the way my
> basement is setup, it would be hell to do.). I have heard from many
> that its possible. Some have told me to use WinProxy, SyGate. Some
> have told me I don't need any of those. I am a beginner, so I have
> read all the necessary HOWTOs, and some just confuse me even more.
>
> I am an A+ certified technician. So I know what I'm doing in windows
> and stuff. Just that linux is TOTALLY new to me. Could anybody
> PLEASE help me out.
>
> So far, I have messed with ipchains and added a few things, but don't
> know how to remove them. So if somebody could maybe point me
> somewhere that shows step by step, or maybe guide me step by step in
> email. Or maybe we could schedule a chat session. I'm willing to do
> anything.
>
> Thanks for any info and help.
>
> [EMAIL PROTECTED]
>
I prefer Linux having the modem and control, but hey I guess you can
try trusting Windows. I know that Win98 has something called
connection sharing, but I don't know anything about it.
I use WinGate right now. You basically need some way of controlling
the dialing on Win98. This part is not a Linux question.
Then your settings depend on what product you've chosen. You shouldn't
need to mess with ipchains at all (default is usually accept
everything). Unless you've changed some scripts, your ipchains rules
will probably be gone next time you reboot - you can type "ipchains -L
input" without the quotes (hope that's right - I'm on Win98 right now
with now access to a Linux machine that has ipchains on it.)
If you need more help, just ask. I'm setting up a dedicated connection
via frame relay and will be back on Linux on this box shortly.
-- Moravia
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: Joseph Crowe <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.help,comp.os.linux.setup
Subject: Re: Kill -9 won't kill a process
Date: Fri, 6 Aug 1999 13:15:47 -0500
Hi Folks,
On Thu, 5 Aug 1999, Saif A. Warsi wrote:
> Sung Kim wrote:
>
> > I am currently running redhat6.0 with kernel 2.2.10 on a P-400.
> > Everything runs fine except for one exception. Especially in X when a
> > process crashes it remains in memory and no matter what I try I can't
> > kill it. I have tried killing them as root and nothing. Even when I
> > reboot the machine linux can't unmount the filesystem due to the
> > locked/linked files. Is there anyway to kill these processes or is my
> > kernel not compiled correctly?
> >
> > Tx for your time.
> >
> > Sung Kim
>
> Hello,
>
> I have noticed the same problem with Mandrake. Whenever a program
> crashes and tries to write the core file it goes into uninterruptible
> sleep mode and no one can kill it (not even kill -9). If you look at the
> size of the core file it will remain zero bytes forever.
>
If Linux is like SVR4 was, there is no fix for this. If a process is
asleep on a system queue, it cannot be interrupted for a signal since it
will not receive control until whatever event it was waiting for occurs.
The process is down in kernel mode, where user level interrupts just get
queued until it transitions to user mode again.....at least that's how I
remember it from my kernel daze....
> If someone has a fix for this please post it. Perhaps someone
with
an > official version of RH 6.0 could contact support and ask them the fix
> for this. It is certainly difficult to develop code when core dumps
> leave numerous sleeping processes lying around.
>
> Saif Warsi
>
>
>
>
Joseph Crowe
http://www.io.com/~jcrowe
email [EMAIL PROTECTED]
------------------------------
From: "Robert Glover" <rglover@air(dot)ups(dot)com>
Subject: Re: ipchains + www.linuxrouter.org = firewall messages
Date: Fri, 6 Aug 1999 15:55:34 -0000
>Packet log: input deny ppp0 proto=6 24.3.133.48:80
204.186.132.133:62234 l=60 s=0x00 i=39322 f=0x400 t=51
^^^^^
input chain
I take this to mean that your http request (not shown) to the site
arrived at 24.3.133.48 and a response was sent only to be blocked at
your doorstep by the input chain. You need to allow http packets to
return from port 80 to a "high port" (> 1024) on your masquerading
box. Something like this should do it:
(Assuming your masq box's IP is 204.186.132.133)
ipchains -A input -p tcp -s 0/0 http -d 204.186.132.133 1024:65535
! -y -j ACCEPT
The ! -y part prevents someone from establishing a tcp connection to
your box. It only allows packets that are part of an existing
connection (presumably one that you initiated). Be careful, it must
be ! -y in that order. 'man ipchains' for more info.
Embrace the Penguin!
------------------------------
From: Simon Kool <[EMAIL PROTECTED]>
Subject: Re: ISDN success?
Crossposted-To: comp.os.linux,comp.os.linux.misc
Date: Fri, 06 Aug 1999 19:48:53 GMT
I use RH60 and have an ASUSCOM external ISDN adapter. I had problems
hooking up when I used the old pppd (the one that came with RH52), but
it works perfect now.
With the 'demand' and 'ilde 60' added to my ppp/options file and with
junkbuster and squid I think I get the maximum benefit from my slow?
ISDN line. Theese also bring down your phone charges a bit.
Hope it helps...
Simon Kool
(.|.)
) (
( Y )
>>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<<
On 8/5/99, 7:04:07 PM, "Aaron Dershem" <[EMAIL PROTECTED]> wrote
regarding ISDN success?:
> I'm looking into ISDN at home. I can't get xDSL or cable modem, so it=
looks
> like this is the only high-speed option for me. What kinds of
experiences
> has anyone had? Also, if you can recommend any hardware that is
compatible
> with SouthWestern Bell (my local baby-bell), that'd be even better.
> I'll be connecting it (I hope) to my Red Hat 5.2 box running the 2.2.6=
> kernel. This is so I can use ipchains to masquerade a Mac and a Win98=
> computer.
> Thanks for any help on the road to fast surfing!
------------------------------
From: "Trevor Porter" <[EMAIL PROTECTED]>
Subject: Re: 12 Step Plan
Date: Fri, 6 Aug 1999 15:34:41 -0230
Thanks for the advice. Backup is the advantage to consolidated mail. I
guess I could have users leave their mail on the server for backup.
Trevor
Robert Krawitz <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> "Trevor Porter" <[EMAIL PROTECTED]> writes:
>
> > In an ongoing effort diminish M$'$ presence, I'm trying to determine
what we
> > 'll 'lose' by going to a purely Linux-run domain (using Samba . I'm not
> > optimistic enough to give most of my users Linux !). One of the biggest
> > problems I can foresee is our mail functionality. Granted, Exchange
Server
> > is a huge PIG, but it does offer some nice features such as a
consolidated
> > mail database and public folders. Is there a Linux-based solution to
this?
> > How can I keep all of my mail in one db (or centralized location) and
have a
> > pool of mail items shared among users?
>
> Use news for the stuff you want to share, and use IMAP for reading
> mail. Beyond that, what's the advantage of a consolidated mail
> database?
>
> --
> Robert Krawitz <[EMAIL PROTECTED]> http://www.tiac.net/users/rlk/
>
> Tall Clubs International -- http://www.tall.org/ or 1-888-IM-TALL-2
> Member of the League for Programming Freedom -- mail [EMAIL PROTECTED]
>
> "Linux doesn't dictate how I work, I dictate how Linux works."
> --Eric Crampton
------------------------------
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