Linux-Networking Digest #411, Volume #12 Mon, 30 Aug 99 12:13:33 EDT
Contents:
securing sendmail from spammers ("Matthew J. Hellman")
Squid not working for http clients ([EMAIL PROTECTED])
Setup NT like RAS on Linux. ([EMAIL PROTECTED])
Re: NFS and GNU Linker producing corrupted executables (RHL 2.2.5-15/2.2.11 and AIX
4.2.1) ("Martin Knoblauch")
kppp OK but can't ping (Randy Frosh)
PPP problem (test)
Re: Help ! IP Forwarding only works one way :( (Udate) (Darks)
Re: Ping Problem?? ("Robert_Glover")
Re: slow ping time gate way ("Robert_Glover")
newbie needs help (Georg)
What's so great about it???? (Greg)
Re: How (or whether) to simulate real-world Internet latency for web (Dan Kegel)
cosource.com - Project - How to Configure Linux Networking - GPL'd Book. Show your
Support! ("Byron MIller")
PPP Conections?
Re: Problems transfering large files ([EMAIL PROTECTED])
Re: securing sendmail from spammers ("Doug Giddens")
----------------------------------------------------------------------------
From: "Matthew J. Hellman" <[EMAIL PROTECTED]>
Crossposted-To: comp.mail.sendmail
Subject: securing sendmail from spammers
Date: Mon, 30 Aug 1999 07:21:19 -0500
I keep reading about problems first time mail administrators have with
spammers relaying thousands of messages from their server. However, I
haven't seen any info on how to prevent this from happening. I have
O'reilly Sendmail and I haven't found any pertinent information
[although the book is nearly as cryptic as sendmail.cf]. I'm using
RedHat 6.0. I see an option in linuxconf regarding the problem, but it
doesn't give any details and I am reluctant to check the box not knowing
what it will do. Any links or help would be appreciated.
Matt
------------------------------
From: [EMAIL PROTECTED]
Subject: Squid not working for http clients
Date: Mon, 30 Aug 1999 12:18:07 GMT
I have configured Linux 6.0 with ipchains, squid
and cache only DNS as a firewall between our
internal and leased line external network.
Ipchains masquerades ftp connections properly,
but Internet explorer cannot work with this squid
proxy (in Win98 clients). I am presently using
the proxy of the ISP and http is fine but is a
bit slow. How to correct the problem so that my
http clients can use my Linux proxy? I do not
know what has gone wrong with the squid
configuration. Squid also does not seem to cache
anything as there is nothing except that the
server is ready and listening to http requests on
port 3128. I am using a simple squid.conf file
only, with http_access allow all and icp_access
allow all and acl all. I am using the default
port 3128. Ipchains forward masqueraded. Can
anyone help.
Thanks,
Valli.
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: [EMAIL PROTECTED]
Subject: Setup NT like RAS on Linux.
Date: Mon, 30 Aug 1999 13:21:28 GMT
Is it possible to setup RAS on Linux Box ?
Where can i find any information on how to do it ?
Pls Help.
Thanks everybody.
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: "Martin Knoblauch" <[EMAIL PROTECTED]>
Crossposted-To:
comp.os.linux.setup,comp.os.linux.development,comp.os.linux.development.kernel,comp.unix.aix
Subject: Re: NFS and GNU Linker producing corrupted executables (RHL 2.2.5-15/2.2.11
and AIX 4.2.1)
Date: Sun, 29 Aug 1999 14:30:43 +0200
David Elder wrote in message
<[EMAIL PROTECTED]>...
>
>3) Results:
>
> a) All of the .o files compiled to either the local
> or NFS file systems compare as Identical.
>
> b) Executables that are written on the NFS file system
> do NOT work. They generate an error:
> Memory Fault (core dump).
>
first thing to check would be that the lock demon is running (and working
to specs :-( I have seen this on other system combinations and lockd was
usually involved.
Martin
--
============================================================
Martin Knoblauch
Compaq Computer EMEA BV
E-Mail: [EMAIL PROTECTED]
Std.Disclaimer: Not speaking for COMPAQ in any form on this medium
------------------------------
From: Randy Frosh <[EMAIL PROTECTED]>
Subject: kppp OK but can't ping
Date: Mon, 30 Aug 1999 08:02:47 -0600
# minicom works fine and I call the ISP from NT just fine so hardware
# is all OK. But I can't use netscape after running kppp and connecting
#
# I can't ping the assigned DNS servers only myself (localhost)
# BEFORE I START KPP
[root@localhost log]# /sbin/ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:48 errors:0 dropped:0 overruns:0 frame:0
TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
[root@localhost log]# /sbin/route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
127.0.0.0 * 255.0.0.0 U 0 0 0
lo
[root@localhost log]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0
lo
# :r /etc/hosts
127.0.0.1 localhost localhost.localdomain
# :r /etc/resolv.conf
/etc/resolv.conf" 0 lines, 0 characters
$ cat /etc/hosts.equiv
cat: /etc/hosts.equiv: No such file or directory
# NOW START kppp. HERE'S THE kppp LOGIN SCRIPT Debug WINDOW
ATZ�
OK
ATM1L1�
OK
ATDT223-5691�
CONNECT 26400/ARQ/V34
You have reached Verinet Communication's Internet Connection!
Technical Support can be reached at [EMAIL PROTECTED] or by calling
(970)416-9152
At the host prompt enter 'shell' for a UNIX shell or 'ppp' for a ppp
connection.
host: ppp
login: rfrosh
Password:
I HAVE kpp SET TO RUN NETSCAPE BUT IT JUST HANGS trying to read file
/usr/doc/HTML/index.html which I can more just fine.
THEN I GET A WARNING WINDOW
No response to the SaveYourself command.
The program may be slow, stopped or broken.
You may wait for it to respind or remove it.
IF I
[root@localhost ng]# ps -ef | grep -i pppd
root 30305 30304 0 06:59 ttyS0 00:00:00 pppd 57600 -detach
crtscts
[root@localhost ng]# /sbin/ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:48 errors:0 dropped:0 overruns:0 frame:0
TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
ppp0 Link encap:Point-to-Point Protocol
inet addr:199.45.181.192 P-t-P:204.144.246.48
Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:89 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
[root@localhost ng]# /sbin/route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
204.144.246.48 * 255.255.255.255 UH 0 0 0
ppp0
127.0.0.0 * 255.0.0.0 U 0 0 0
lo
default 204.144.246.48 0.0.0.0 UG 0 0 0
ppp0
[root@localhost ng]#
[root@localhost ng]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
204.144.246.48 0.0.0.0 255.255.255.255 UH 0 0 0
ppp0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0
lo
0.0.0.0 204.144.246.48 0.0.0.0 UG 0 0 0
ppp0
[root@localhost ng]#
[root@localhost ng]# cat /etc/hosts
127.0.0.1 localhost localhost.localdomain
[root@localhost ng]# cat /etc/resolv.conf
domain verinet.com #kppp temp entry
nameserver 204.144.246.3 #kppp temp entry
nameserver 204.144.246.4 #kppp temp entry
SHOULD BE FINE BUT
[root@localhost /etc]# ping 204.144.246.4
PING 204.144.246.4 (204.144.246.4): 56 data bytes
--- 204.144.246.4 ping statistics ---
16 packets transmitted, 0 packets received, 100% packet loss
[root@localhost ng]# cat /etc/hosts.equiv
cat: /etc/hosts.equiv: No such file or directory
[root@localhost ng]# more /var/log/messages
Aug 24 06:54:57 localhost kernel: CSLIP: code copyright 1989 Regents of
the University of California
Aug 24 06:54:57 localhost kernel: PPP: version 2.3.3 (demand dialling)
Aug 24 06:54:57 localhost kernel: PPP line discipline registered.
Aug 24 06:54:57 localhost kernel: registered device ppp0
Aug 24 06:59:38 localhost pppd[30305]: pppd 2.3.7 started by root, uid 0
Aug 24 06:59:38 localhost pppd[30305]: Using interface ppp0
Aug 24 06:59:38 localhost pppd[30305]: Connect: ppp0 <--> /dev/ttyS0
Aug 24 06:59:44 localhost kernel: PPP BSD Compression module registered
Aug 24 06:59:44 localhost kernel: PPP Deflate Compression module
registered
Aug 24 06:59:44 localhost pppd[30305]: local IP address 199.45.181.192
Aug 24 06:59:44 localhost pppd[30305]: remote IP address 204.144.246.48
Aug 24 07:02:46 localhost PAM_pwdb[30331]: (su) session opened for user
root by rfrosh(uid=105)
# AFTER A FEW MINUTES netscape FINALLY DOES READ FILE index.html
# BUT IN navigator I type in http://www.redhat.com
# AND IT JUST SITS AT "Connect: Looking up host: www.redhat.com
#
# and the "TX" light on my modem blins on occasion
# the CO OH HS TR and MR lights are on. The RX and RI lights are off.
# AFTER A WHILE HERE'S ifconfig
[root@localhost ng]# /sbin/ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:3924 Metric:1
RX packets:48 errors:0 dropped:0 overruns:0 frame:0
TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
ppp0 Link encap:Point-to-Point Protocol
inet addr:199.45.181.192 P-t-P:204.144.246.48
Mask:255.255.255.255
UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:209 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
[root@localhost ng]# netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt
Iface
204.144.246.48 0.0.0.0 255.255.255.255 UH 0 0 0
ppp0
127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0
lo
0.0.0.0 204.144.246.48 0.0.0.0 UG 0 0 0
pp
[root@localhost ng]# /sbin/route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use
Iface
204.144.246.48 * 255.255.255.255 UH 0 0 0
ppp0
127.0.0.0 * 255.0.0.0 U 0 0 0
lo
default 204.144.246.48 0.0.0.0 UG 0 0 0
pp
root@localhost ng]# more /var/log/messages
Aug 24 06:54:57 localhost kernel: CSLIP: code copyright 1989 Regents of
the University of California
Aug 24 06:54:57 localhost kernel: PPP: version 2.3.3 (demand dialling)
Aug 24 06:54:57 localhost kernel: PPP line discipline registered.
Aug 24 06:54:57 localhost kernel: registered device ppp0
Aug 24 06:59:38 localhost pppd[30305]: pppd 2.3.7 started by root, uid 0
Aug 24 06:59:38 localhost pppd[30305]: Using interface ppp0
Aug 24 06:59:38 localhost pppd[30305]: Connect: ppp0 <--> /dev/ttyS0
Aug 24 06:59:44 localhost kernel: PPP BSD Compression module registered
Aug 24 06:59:44 localhost kernel: PPP Deflate Compression module
registered
Aug 24 06:59:44 localhost pppd[30305]: local IP address 199.45.181.192
Aug 24 06:59:44 localhost pppd[30305]: remote IP address 204.144.246.48
Aug 24 07:02:46 localhost PAM_pwdb[30331]: (su) session opened for user
root by rfrosh(uid=105)
Aug 24 07:09:36 localhost named[317]: Cleaned cache of 0 RRs
Aug 24 07:09:36 localhost named[317]: listening on [199.45.181.192].53
(ppp0)
Aug 24 07:09:36 localhost named[317]: USAGE 935500176 935453376
CPU=0.03u/0.01s CHILDCPU=0u/0s
Aug 24 07:09:36 localhost named[317]: NSTATS 935500176 935453376
Aug 24 07:09:36 localhost named[317]: XSTATS 935500176 935453376 RR=0
RNXD=0 RFwdR=0 RDupR=0 RFail=0 RFErr=0 RErr=0 RAXFR=0 RLame=0 ROpts=0
SSysQ=1 SAns=0 SFwdQ=0 SDupQ=9159 SErr=1 RQ=0 RIQ=0 RFwdQ=0 RDupQ=0
RTCP=0 SFwdR=0 SFail=0 SFErr=0 SNaAns=0 SNXD=0
AND STILL:
[root@localhost /etc]# ping 204.144.246.3
PING 204.144.246.3 (204.144.246.3): 56 data bytes
--- 204.144.246.3 ping statistics ---
23 packets transmitted, 0 packets received, 100% packet loss
I go to kppp Statistics screen while running a ping on 204.144.246.6 and
get
bytes in 395 bytes out 16209
packets in 6 packets out 262
vjcomp in 0 vjcomput out 0
vjuncin 0 vjunc out 0
vjerr 0 non-vj 274
------------------------------
From: test <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: PPP problem
Date: Mon, 30 Aug 1999 16:12:05 +0300
I am trying to connect to a new ISP. Everything seems to be going fine
until after the connection is made. Here is the output in my syslog of
what happens on the connect.
Aug 30 15:36:57 SUNA_ENT4 pppd[1922]: Serial connection established.
Aug 30 15:36:57 SUNA_ENT4 pppd[1922]: Using interface ppp0
Aug 30 15:36:57 SUNA_ENT4 pppd[1922]: Connect: ppp0 <--> /dev/modem
Aug 30 15:36:59 SUNA_ENT4 modprobe: can't locate module ppp-compress-21
Aug 30 15:36:59 SUNA_ENT4 modprobe: can't locate module ppp-compress-26
Aug 30 15:36:59 SUNA_ENT4 modprobe: can't locate module ppp-compress-24
Aug 30 15:37:29 SUNA_ENT4 pppd[1922]: IPCP: timeout sending
Config-Requests
Aug 30 15:37:29 SUNA_ENT4 pppd[1922]: Connection terminated.
Aug 30 15:37:29 SUNA_ENT4 pppd[1922]: Connect time 0.6 minutes.
Aug 30 15:37:30 SUNA_ENT4 pppd[1922]: Exit.
I don't know what IPCP does or why it would time out with this ISP.
Any information would be appreciated.
David Suna
[EMAIL PROTECTED]
------------------------------
From: Darks <[EMAIL PROTECTED]>
Subject: Re: Help ! IP Forwarding only works one way :( (Udate)
Date: 30 Aug 1999 14:12:30 GMT
[EMAIL PROTECTED] wrote:
> On 30 Aug 1999 00:24:27 GMT, Darks <[EMAIL PROTECTED]> wrote:
> Did you configure the gateway addresses of each network to be the
> corresponding IP addresses of the router box?
yes. actually if i do a ping from the eth1 net (192.168.1.x) to the
eth0 net (192.168.3.x) it traverses the linux router. a reply packet is
generated but it gets stuck on the router. it appears in the tcpdump
of eth0, but it never appears in the forwarding chain, nor in the
tcpdump of eth1.( i inserted a logging rule in the forwwarding chain)
if i do a ping from the eth0 net to the eth1 net the echo-request packet
also gets stuck someweher between the eth0 interface of the router and
the kernels networking code.
i don�t understand this, why does forwarding work from eth1 -> eth0 but
not the other way ??
btw: i also tested tcp and udp packets. same problem :((
cya
Holger
--
_/\/\/\/\/\____________________________/\/\___________________
_/\/\____/\/\__/\/\/\______/\/\__/\/\__/\/\__/\/\____/\/\/\/\_
_/\/\____/\/\______/\/\____/\/\/\/\____/\/\/\/\____/\/\/\/\___
_/\/\____/\/\__/\/\/\/\____/\/\________/\/\/\/\__________/\/\_
_/\/\/\/\/\____/\/\/\/\/\__/\/\________/\/\__/\/\__/\/\/\/\___
______________________________________________________________
http://www.fet.org [EMAIL PROTECTED]
------------------------------
From: "Robert_Glover" <Please_reply_to@newsgroup>
Subject: Re: Ping Problem??
Date: Mon, 30 Aug 1999 13:45:11 -0000
tinman555 wrote in message ...
>if your mask is 255.255.255.0 and your IP is 192.168.1.xxx
>then you should only be ping 192.168.1.xxx
>
>and the same thing is for 192.168.2.xxx
>
>so if you REALLY need to have more than 255 IP's
>you can change your netmask to 255.255.0.0
>
>Theres an even slicker way, if you only want 1.xxx and 2.xxx
>by using some number other than 255 in your netmask, but
>i've never bothered to figure out. Anyone know the rules for netmask
by
>heart?
For that, try a nertmask of 255.255.254.0
------------------------------
From: "Robert_Glover" <Please_reply_to@newsgroup>
Subject: Re: slow ping time gate way
Date: Mon, 30 Aug 1999 14:03:15 -0000
I'm going to assume that your cable-modem is on eth0 for this example.
So at the command line (as root) enter these commands (these work for
me):
ifconfig eth0 down
killall dhcpcd
dhcpcd -h cc1003148-a eth0
# you might need to include the -r switch with the dhcpcd command
depending on your ISP.
This will: take the network device eth0 off-line, stop the dhcp client
daemon, and re-initialize your eth0 interface to the cable-modem.
Does that improve your ping?
------------------------------
From: Georg <[EMAIL PROTECTED]>
Subject: newbie needs help
Date: Mon, 30 Aug 1999 15:30:15 +0000
Can you tell me what is the best free proxy server for Linux.
------------------------------
From: Greg <[EMAIL PROTECTED]>
Subject: What's so great about it????
Date: Mon, 30 Aug 1999 10:52:35 -0400
OK....I was curious about Linux OS (as I'm bored with Windows and MS).
I installed it (really clunky installation compared to Windows) on a
PII-333 with 128 mg ram. All went ok though. Found my mouse.
After starting it, I wanted to set up a connection to my ISP.
Bellsouth.net. I have a US Robotics external modem. Detected it.
Used (Linux Mandrake) KPPP to set up my connection. Dials ok...but then
it just sits there waiting for "pppd" to come up. What the heck is
that????
I mean, this of all things today should be the most easiest thing to do
on a "modern" os shouldn't it??? I've tried now for two hours (reading
the ppp docs on HOWTO, Linux in 24 hours, etc., etc.) and I still can't
figure this out.
Is it really this hard???? Man, if it is I'm going back to the "safety
zone" because this is nothing more than one big headache. Although I
have to admit...there is something distinct about it that I can't put my
finger on.
I have an NT box too with a Netgear ethernet card in it. Read some
about Samba (or something like that). I have no idea how to connect my
Linux box to the NT one...in Windows it's sooooo easy.
What's the deal with Linux making some tracks now????? If it's this
hard it'll never "sell" to the general public.
Greg
------------------------------
From: Dan Kegel <[EMAIL PROTECTED]>
Crossposted-To:
comp.benchmarks,comp.infosystems.www.servers.unix,comp.unix.bsd.freebsd.misc
Subject: Re: How (or whether) to simulate real-world Internet latency for web
Date: Mon, 30 Aug 1999 07:56:55 -0700
David Knell wrote:
> >To simulate the Internet's latency, the simulator would be set
> >for 0ms latency (as a control), 40ms one-way latency (to simulate
> >cable modems), or 200ms one-way latency (to simulate 56k modems).
>
> If you just want to simulate latency, then there's some
> bits of software around (including, I think, one that'll
> run on PicoBSD (FreeBSD on a single floppy) which'll introduce
> latency, throttle your bandwidth and drop packets.
Anyone know what that software might be called? I just
searched Freshmeat for "latency", no joy.
- Dan
--
(The above is my opinion alone, and not that of my employer)
------------------------------
From: "Byron MIller" <[EMAIL PROTECTED]>
Subject: cosource.com - Project - How to Configure Linux Networking - GPL'd Book. Show
your Support!
Date: Mon, 30 Aug 1999 09:45:14 -0400
"Linux Networking for Dummies"
Linux networking for dummies, is an Online GPL'd book that will
cover all aspects of configuring your linux box for networking. From dialup
PPP connections to the many big ISP's to configuring a firewall and a proxy
server.
The book will touch bases with the major distributions, have many examples
and contain information for the beginner linux up to the expert user.
We are currently seeking sponsors for this project, you may also browse the
many other projects available seeking sponsorship. If you are interested in
showing your support, please visit http://www.cosource.com
and view our project.
Thanks for your time, and we hope to see your support.
You may view the project plans for the Online book at
http://www.cosource.com/cgi-bin/cos.pl/bid/info/15
Thanks Again!
--
Byron Miller
------------------------------
From: <[EMAIL PROTECTED]>
Crossposted-To: redhat.networking.general
Subject: PPP Conections?
Date: Mon, 30 Aug 1999 14:31:03 GMT
I need to know how to make a interactive window to make a PPP
connection as in Win95/98 within Xwindow. CAn I use minicom and
then somehow start a PPP connection? Does anyone have an idea?
Read Finein
================== Posted via CNET Linux Help ==================
http://www.searchlinux.com
------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Problems transfering large files
Date: Mon, 30 Aug 1999 15:04:57 GMT
In article <5Mhs3.207$[EMAIL PROTECTED]>,
"Marc Marais" <[EMAIL PROTECTED]> wrote:
>
> Marc Marais wrote in message ...
> >I have a Linux and Win98 box on a LAN. I'm using kernel 2.2.6 on
Linux. I'm
> >having problems transfering large files across the network (~500MB)
using
> >Samba and FTP. The transfer seems to stall (no data is transfered)
and then
> >the connection is dropped. Its impossible for me to transfer any
large
> files
> >this way - it always fails! Smaller files work 100%. This is -very-
wierd!!
> >Is this a bug in the linux kernel or do I need to change some
settings in
> >the Win98 registry for TCPIP?
> >
> >Anyone else had this problem?
> >
> >Suggestions?
> >
> >Marc
> >
> >
> >
>
> Just wanted to give some feedback about this - it may help others who
> experience similar problems.
>
> Kernel 2.2.6 is buggy. I upgraded to 2.2.10 and the problem has been
solved.
>
> I strongly suggest that anyone still running 2.2.6 upgrade!
>
> Marc
>
>
I'm having the same problems and I'll try the 2.2.10 kernel but I've
tried 2.2.5, 2.2.12, 2.2.9-27mdk and I've about given up hope. FTP
works fine on RedHat 5.1/5.2 but I haven't been able to get a 128Mb
file across with the 2.2 kernel. Any clues would be greatly
appreciated.
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: "Doug Giddens" <[EMAIL PROTECTED]>
Crossposted-To: comp.mail.sendmail
Subject: Re: securing sendmail from spammers
Date: Mon, 30 Aug 1999 10:25:41 -0500
This site should have the info you need.
http://www.sendmail.org/tips/relaying.html
Doug
--
Witty signature awaitng software upgrade
Matthew J. Hellman <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> I keep reading about problems first time mail administrators have with
> spammers relaying thousands of messages from their server. However, I
> haven't seen any info on how to prevent this from happening. I have
> O'reilly Sendmail and I haven't found any pertinent information
> [although the book is nearly as cryptic as sendmail.cf]. I'm using
> RedHat 6.0. I see an option in linuxconf regarding the problem, but it
> doesn't give any details and I am reluctant to check the box not knowing
> what it will do. Any links or help would be appreciated.
> Matt
>
------------------------------
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End of Linux-Networking Digest
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