Linux-Networking Digest #157, Volume #12          Mon, 9 Aug 99 00:13:28 EDT

Contents:
  Re: Routing between 3 Network ca (Question Exchange, Inc.)
  Re: Weird network conflict (Question Exchange, Inc.)
  Re: ntp server returns permissio (Question Exchange, Inc.)
  Re: showmount command is missing on RH6.0 (Abdullah Ramazanoglu)
  Printing from RH 6.0a Linux box to Novell or Samba HP printers on NT (Marc D. Bumble)
  Re: IP Masq & resolv.conf (Question Exchange, Inc.)
  Re: Three ethernet cards, one no (Question Exchange, Inc.)
  Re: Setting up a PPP connection (Question Exchange, Inc.)
  Re: specify Reply-To with Mail (James Dan)
  Re: PPP oddities. ("Russell D. Mora")
  Re: Delaying eth0 initialization (Question Exchange, Inc.)
  Re: ne2000 problem (Andrew Waddington)
  sockify squid ("�˼��H")
  Re: autofs&smbmount (John Cavanaugh)
  Installing 3C509 Card - Debian 2.1 - Problem (Warren Whitney)
  Re: -- telnet problem ("Derek")
  Re: dd Command (Steven Micallef)
  Re: remote access as root? ([EMAIL PROTECTED])
  network access (Theresa Zelkwitz)
  wu_ftp user shows still on-line (Joel)
  Re: Samba password (haze)
  Re: remote access as root? ([EMAIL PROTECTED])
  Re: -- telnet problem ("Jacques Hebert")

----------------------------------------------------------------------------

From: Question Exchange, Inc. <[EMAIL PROTECTED]>
Subject: Re: Routing between 3 Network ca
Date: 8 Aug 1999 12:58:48 GMT

OK. You've got 2 ISPs and you want to use one most of the time and another one only 
for certain hosts/nets. Did I get it right?


If so, all you have to do is to set up the routes to these "special" hosts.
To do that use "route add -host my.special.host gw ADSL.isp.gateway". To set up route 
to a net, use "route add -net my.special.net netmask special.netmask.goes.here gw 
ADSL.isp.gateway".

As networking stack uses 'default' route as a last resort, ADSL will be used to access 
my.special.host an my.special.net.

It has some limitations, though. Routing is done on an IP address basis. It means, 
that if my.special.host has multiple IPs you will have to either set route to the 
subnet these hosts are on or you will have to setup a route for each IP address.

Have fun.


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------------------------------

From: Question Exchange, Inc. <[EMAIL PROTECTED]>
Subject: Re: Weird network conflict
Date: 8 Aug 1999 12:59:10 GMT

Hostname check:  Linuxconf / network / Client Tasks / Basic Host Information


The hostname there should be What you want the system to think of its self (probably 
helena)

GNOME wants a DNS server on start up.  Best bet is to use "Activate on Bootup" for 
your internet interface in netcfg, or configure your box as its own DNS server

Your hostname is how your computer thinks of itself.  For other computers to think of 
you as Helena, their nameserver has to be configured to recognize Helena as you.  Not 
easy unless your on a LAN.

As for everything knowing what to use, its pretty automatic.  If a service is started, 
it starts on everything (though you can block it by editing hosts.deny in /etc)  If it 
specifies an IP, it uses each respective netmask (so if it refers to 127.0.0.1, it 
uses lo (loopback) or if it uses say (192.168.0.1, if thats your lan address) it uses 
lo.  Yet if it uses 192.168.0.2, it will use an ethernet card, if thats your lan's 
subnet.  if it uses 207.172.163.182, it will use your widest interface, probably your 
modem.    So unless you tell it otherwise, services use everything, though they can be 
blocked,  and clients use the local domains.  (to force the modem to disconnect, and 
test each one out, use 'ifdown ppp0' (or your internet interface) and run the proggie. 
 Bear in mind that if you disconnect from the net, you will lose DNS access, so unless 
your computer replies to its own loopback, some prog's will have problems (Sendmail, 
or Samba, or Gnome Startup)  Try adding 'ndc sta!
rt' to /etc/rc.d/rc.local.  That may give you loopback resolution (quiet gnome) if it 
shipped properly for your version.

Message if you need help, and I hope it all works out for you!


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------------------------------

From: Question Exchange, Inc. <[EMAIL PROTECTED]>
Subject: Re: ntp server returns permissio
Date: 8 Aug 1999 12:59:3 GMT

I'm not sure but maybe the xntp protocol transfers the clients ip address also as part 
of the data. 


you could check that on your private net with a sniffer.

or it could be that those servers don't accept ntp requests via TCP only via UDP .. 
and that doesn't work well with masquerading.

a sniffer could be of value here as well .. to see if your clients use UDP.

as a work around i would suggest using your router as xntp client to synchronise with 
the companys servers and as a xntp server for your clients.

-heinrich


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------------------------------

From: Abdullah Ramazanoglu <[EMAIL PROTECTED]>
Subject: Re: showmount command is missing on RH6.0
Date: Mon, 09 Aug 1999 04:16:30 +0300

[EMAIL PROTECTED] wrote:
> 
> Hi all,
> 
> I am currently using RedHat 6.0 and realize that showmount command is
> missing in this version. Does anyone know what is the replacement of
> showmount command in this version? I'm particularly interesting in try
> to find what exported filesystems from other machines; what I mean is
> 'showmount -e <hostname>'.

Hi Alan,

"knfsd-clients-1.2.2-4" package on the CD contains (only) showmount
program. Why package name is different from the actual program, I don't
know.
-- 
Abdullah Ramazanoglu    [ aramazanoglu AT demirbank DOT com DOT tr ]

------------------------------

Subject: Printing from RH 6.0a Linux box to Novell or Samba HP printers on NT
From: [EMAIL PROTECTED] (Marc D. Bumble)
Date: 08 Aug 1999 21:06:49 -0400


Hi,

I've read through  the How-to's and attempted to  use either nprint or
smbprint  to  print to  both  Novell  Netware  and Windows  NT  shared
printers using a  Red Hat Linux 6.0a distribution  system.  So far Ive
had no  sucess printing to  the printers mounted  on either the  NT or
Novell Netware mounted systems.  Has anyone gotten this to work?

I believe  the Novell  Netare is version  4.x and  the NT is  4.x with
service pack  3 installed.  I think  the Samba version  is 3.0.3.  Ill
try 3.0.5 this week.

Thanks in advance,

marc


-- 



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------------------------------

From: Question Exchange, Inc. <[EMAIL PROTECTED]>
Subject: Re: IP Masq & resolv.conf
Date: 8 Aug 1999 13:0:5 GMT

Unfortunately there is no really easy way to make them think, though if you disable 
some of the things that require it (sendmail, and samba, or force sambas hostname (or 
even sendmails) etc) you can take the easy way out.  The long answer is also the 
painful one.  You can configure the clients to use the gateway-box as a name server, 
and the gateway-box as the said server.  Its a long process, but it can be done ;-)  
There are some marvelous howto's out there.


One last thing to try (actually try it before the rest of them) change the timeout's 
to say 1 second, and see if that works.  It should relay a timeout, where as zero can 
cause some comp problems.

Best of luck, and hope it helped!


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------------------------------

From: Question Exchange, Inc. <[EMAIL PROTECTED]>
Subject: Re: Three ethernet cards, one no
Date: 8 Aug 1999 12:59:34 GMT

Ensure your /etc/conf.modules has a set of lines resembling


alias eth0 3c509
alias eth1 3c509
alias eth2 3c509
options 3c509 io=0x350,0x330,0x640 

where the 0x350,0x330,and 0x640 are your respective IO addresses.

if those dont work, we can try forcing this like so:

alias eth0 3c509-1
alias eth1 3c509-2
alias eth2 3c509-3
options 3c509-1 io=0x350 irq=7
options 3c509-2 io=0x330 irq=8
options 3c509-3 io=0x640 irq=9

(Bearing in mind that this loads the driver modules 3 times)

MAKE SURE YOU MATCH MAC ADDRESSES TO THE CARDS AND IO'S OR THINGS _WILL_ GET UGLY ;-)

Of course, if your using a kernel compiled version, its uglier still


LILO: linux ether=IRQ1,IO3,eth0 ether=IRQ2,IO2,eth1 ether=IRQ3,IO3,eth2

(All one line)

Make sure you are doing all of this from a COLD boot, (to eliminate any problems often 
associated with Dual Booting) and update your kernel to at least 2.2.5

If none of this works, message me, and we will get this hammered out.  Hope it all 
helps!


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------------------------------

From: Question Exchange, Inc. <[EMAIL PROTECTED]>
Subject: Re: Setting up a PPP connection
Date: 8 Aug 1999 13:0:18 GMT

Ok first, makesure your not using a winmodem.  These are satanic and evil (And PCI)  
If your using one of these, you might as well stop reading, There is ABSOLUTELY NO WAY 
TO MAKE THEM WORK.  (I know, i dropped 50$ on one.)  If its external or ISA your clear.


Next find out what COM port its on (Windows / Control Panel / System / Device Manager 
/ Modems / [your modem] / Properties)

If you havent upgraded your kernel to 2.2.5+, then (as root) type:
ln -f /dev/cua[comport - 1] /dev/modem
(All one line)
(So if windows reported COM2, use /dev/cua1, if windows reported 1, use /dev/cua0 etc)

So it looks similar to

ln -f /dev/cua2 /dev/modem

then enter netcfg (in Xwindows)

Under names, add the nameserver of your ISP (you may have to call them)

under interfaces, click ADD, choose PPP and click ok type in the phone # and the 
username / password and click ok.  (it should close, or ask you to save.)  Reopen it 
by double clicking on it (ppp0) and for modem port, choose /dev/modem  for line speed, 
generally 115200 works, though 57600 might work better.  Check the 1'st and third 
boxes, leave the rest unchecked.  Under networking, i use activate at boot time.  That 
means your box will ALWAYS stay online.  Also, the rest should be checked generally.

The rest of the information can generally be left alone.  click save, and back at the 
main screen, try to activate it.  If you dont here it in at most a minute, you have a 
problem.  Shell back out (Text screen) and try typing 'ifup ppp0'  (That is also the 
manual way to dial out, if you dont have it automatically do it, and ifdown ppp0 would 
hang up)

if you get an error message, relay it to me and well make this darn thing work ;-)

Hopefully you wont need it, and I hope it helped!


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------------------------------

From: James Dan <[EMAIL PROTECTED]>
Subject: Re: specify Reply-To with Mail
Date: Mon, 09 Aug 1999 01:30:40 GMT

I couldn't get Brian McCauley's code to work, but after
a bit of experimenting, the 
following does work for me:

    system "sendmail '$recipient' <mail.tmp";

$recipient 
conatins the email address of the recipient.

The first two lines of the file mail.tmp 
contains:

Reply-To: email_address_to_reply_to
Subject: Subject text

The remainder of 
mail.tmp is the email message to
be sent

James Dan

Brian McCauley wrote:
> 
> 
Virginie  writes something not related to
> Linux.
> 
> Please post obviously Unix 
questions to Unix groups - but not until
> you've consulted the Unix FAQ.
> 
> This is 
covered by FAQ entry: 
>   5.2 What's the best way to send mail from a program?
> 
> > 
I would like to specify on command line the Reply-To: field.
> > 
> > Exactly like to 
specify the Subject: field we use the command line :
> > 
> > mail -s the_subject 
the_mail_address < the_message_file
> > 
> > Question : what is the command line to do 
this?
> 
> My answer is do not use Mail.
> 
> When sen!
ding mail from programs it is almost always best to use
> "sendmail -t -oi".
> 
> (
>  
 echo To: the_mail_address
>   echo Reply-to: the_reply_address
>   echo Subject: 
the_subject
>   echo
>   cat the_message_file
> ) | sendmail -t -oi
> 
> 
> 
> -- 
>   
   \\   ( )  No male bovine  | Email: [EMAIL PROTECTED]
>   .  _\\__[oo   faeces 
from    | Phones: +44 121 471 3789 (home)
>  .__/  \\ /\@  /~)  /~[   /\/[ |   +44 121 
627 2173 (voice) 2175 (fax)
>  .  l___\\    /~~) /~~[  /   [ | PGP-fp: D7 03 2A 4B D8 
3A 05 37...
>   # ll  l\\  ~~~~ ~   ~ ~    ~ | http://www.wcl.bham.ac.uk/~bam/
>  
###LL  LL\\ (Brian McCauley)  |

==================  Posted via CNET Linux Help  ==================
                    http://www.searchlinux.com

------------------------------

From: "Russell D. Mora" <[EMAIL PROTECTED]>
Subject: Re: PPP oddities.
Date: Mon, 09 Aug 1999 12:53:25 +1200
Reply-To: [EMAIL PROTECTED]

"Russell D. Mora" wrote:

> Hi,
>
> I'm posting my weird experiences with PPP to see if anyone else has had
> similar experiences that might be able to lend a hand.  First of all I
> should say that my ppp connection from linux works (and I run RH6.0,
> kernel 2.2.5-15), only it does two weird things.

<snip>

If anyone one interested, I solved the usernet problem.  Is was a case of
environment variables (LD_LIBRARY_PATH I think).  Still don't know what is
generating those /var/log/messages lines though.



------------------------------

From: Question Exchange, Inc. <[EMAIL PROTECTED]>
Subject: Re: Delaying eth0 initialization
Date: 8 Aug 1999 12:59:46 GMT

Hi,


Load up a shell and su to root, 
or login as root. 

try "modprobe 3c509" to load the
module. Then try the ifconfig eth0.. 


To fix this add either "modprobe 3c509"
to /etc/rc.d/rc.local or 
add "alias 3c509" to /etc/conf.modules.

Check to see if you have /etc/modules..


--vh



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------------------------------

Date: Sun, 08 Aug 1999 21:51:01 -0400
From: Andrew Waddington <[EMAIL PROTECTED]>
Subject: Re: ne2000 problem


I had a similar problem, I was forced to setup the isapnp utilities in
order for it to work...

 the command  pnpdump (and man pages are a good start...)

These commands had to be run after boot up because something somewhere
mulches or resets the card settings. PNPDUMP dumps a file.. anyhow maybe
this is way off track. 


Nick V wrote:
> 
> ISA
> 
> Andrew Waddington <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]...
> >
> > Is your card PCI or ISA?
> >
> > Nick V wrote:
> > >
> > > i have a ne2000 compatible network card...i've disable the plug and play
> on
> > > it, and am having trouble getting the linux install to read it...i am
> > > installing caldera 1.3 and it does not recognize the card....i have the
> > > parameters (i/o and irq) but this does not help...any suggestions?
> > >
> > > thanks
> > > nick

------------------------------

From: "�˼��H" <[EMAIL PROTECTED]>
Crossposted-To: tw.bbs.comp.linux
Subject: sockify squid
Date: Mon, 9 Aug 1999 10:42:35 +0800

has anyone tried sockify squid by the following command?

runsocks squid -sY >> /usr/local/ssquid.out 2 > & 1 &

seems it doesn't work. i get

Ambiguous output redirect.

anyway, what is the meaning of this command?

regards,
frederick



------------------------------

From: John Cavanaugh <[EMAIL PROTECTED]>
Crossposted-To: comp.protocols.smb
Subject: Re: autofs&smbmount
Date: Mon, 09 Aug 1999 02:59:43 GMT

In comp.protocols.smb Marius Kaizerman <[EMAIL PROTECTED]> wrote:
> Hello,

> The new smbmount misses the -P parameter for password, which means
> the password needs to be entered as: -U user%password.
> This is fine, however, autofs still uses the -P parameter to supply
> passwords
> defined in auto.misc, so now that there isn't any -P support for smbmount,
> autofs can't mount samba shares which has passwords.

> I'm using the versions of samba and autofs that came with RH6.

> Any ideas?

Autofs is quite broken in how it passes things to smbmount.  Not that
this is the autofs folks fault as smbmount has been changing quite a
bit over the last few releases of samba.

There is a defect entered in bugzilla on this topic, but no fixes in
sight.  Im going to try to fix autofs and submit the patch to Redhat
for inclusion in rawhide.


--John Cavanaugh

------------------------------

From: Warren Whitney <[EMAIL PROTECTED]>
Subject: Installing 3C509 Card - Debian 2.1 - Problem
Date: Sun, 08 Aug 1999 22:15:16 -0400

I have Debian 2.1 up and running.  Was using a NE2000 coax network card
as eth0 and everything (TCPIP) was working fine.  Now I want to change
over to a 3com 3c509TP card.

First I remvoved the NE2000 module using modconf.  So far so good.

Next  I set the 3c509 card (pnp disabled) to io=300h and irq=10  (did
this by botting in dos)

Now I want to install the 3c509 module.  So I ran modconf, selected the
3c509 module and hit "Install the module in the kernel".  The next
screen to appear has a the top a line saying:

"Enter command line arguments io=300h irq=10"

Then down at the bottom of the screen there is a line, apparently for
entering command line aguments.

I have tried typing all sorts of permutations on this line to no avail,
including:

io=300 irq=10
io = 300 irq = 10
io=300h irq=10
io = 300h irq = 10

Always I get the following error message:

/lib/modules/2.0.36/net/3c509.o: symbol for parameter io not found.

and a message saying the install failed.

Any idea what I am doing wrong?

By the way, I also tried using "insmod".  This gives me what appears to
be a message indicating successful installation, (?)  but has no effect
after a reboot.  Also cannot ping myself after "installation" using
insmod.

Can anybody help?  Thanks very much in advance.




------------------------------

Reply-To: "Derek" <[EMAIL PROTECTED]>
From: "Derek" <[EMAIL PROTECTED]>
Subject: Re: -- telnet problem
Date: Mon, 09 Aug 1999 02:30:40 GMT

Kooter wrote in message <7okakv$7ci$[EMAIL PROTECTED]>...
>
>Leon Harris <[EMAIL PROTECTED]> wrote in message
>news:[EMAIL PROTECTED]...
>> Hi
>> That is normal.
>> You can't log in as root unless you are on the console normally.
>
>I wasn't aware of that.
>
>Currently this network is for my own use and I haven't hooked into the
>Internet yet.  There are no crackers living in my house that I know of so
>I'm not too worried about security yet.  Once I go onto the net I'll be
more
>careful.
>


Take a look at "/etc/securetty" and uncomment the #ttyp0 line.





------------------------------

From: Steven Micallef <[EMAIL PROTECTED]>
Subject: Re: dd Command
Date: Mon, 9 Aug 1999 09:13:40 +1000


You might be better off adding Windows NT to the LILO boot loader, as NT
can be difficult to multi-boot unless you plan on using 3rd party
software.

I suggest you read the man page for lilo and read the NT-Linux HOWTO. 

On Sun, 8 Aug 1999, KYLui wrote:

> How to add linux to the boot list of Window NT??
> use dd command ??
> 
> thx..
> 
> 
> 
> 

--
Steven Micallef
AuNIC: SM936-AU


------------------------------

From: [EMAIL PROTECTED]
Subject: Re: remote access as root?
Date: Mon, 09 Aug 1999 02:54:29 GMT

In article <7oinb8$3od$[EMAIL PROTECTED]>,
  "sham khalil" <[EMAIL PROTECTED]> wrote:

> many people suggest to login as user then su root.
> then you could do whatever you want as root.

...and those people generally suggest it because they heard it somewhere
else, and so forth.  `su` is a dangerous command that should be
depreciated as quickly as possible.  The added security it provides over
a standard telnet session as root is no longer significant in light of
stronger security measures such as ssh or secure-telnet.  The security
*risk* it creates on a multi-user system now outweighs any benefit, and
telling people to use `su` should now be considered bad advice.

Your best bet is to use some form of encyrpted connection.  If this is a
home machine [not to be used for commercial purposes], you can get ssh
from ftp://ftp.funet.fi/pub/unix/security/login/ssh/ .  There are other
security programs available that have less restrictive licensing, in
case you need to use your box for business reasons.

--
Bill Clark
Systems Architect
ISP Channel
http://neighborhood.ispchannel.com/


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------------------------------

From: Theresa Zelkwitz <[EMAIL PROTECTED]>
Subject: network access
Date: Sun, 08 Aug 1999 19:25:34 -0700

I have a server with redhat 5.2 for a win95 network.. I have set up
samba and three user groups, they seem to be working properly except for
after the win95 computer has been rebooted.  The linux server shows up
on our network but is not accessible for about 15 minutes after reboot,
what can be done to correct this?

Thanks,
Theresa



------------------------------

From: Joel <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: wu_ftp user shows still on-line
Date: Sun, 08 Aug 1999 22:22:08 -0500

Hi Gang,
 We RH6.0 and our guest (restricted to their own directories) users will
hang up and the 'last' command will show them still logged on. Also the
/var/log/xferlog will show his tiume in GMT. I made myself as a real
user and the 'last' command follows my connection nicely and the xferlog
shows the transfers in the correct time zone. If I then change my group
to the guest group it will show that I am still connected after I
disconnect and also my xfers will show being made in GMT time. Very
strange problem. wu_ftp seems to work fine and I only have this problem
in 2.05 and not 2.04.

Thanks for any and all help

Joel
[EMAIL PROTECTED]

------------------------------

From: haze <[EMAIL PROTECTED]>
Crossposted-To: athome.users-unix
Subject: Re: Samba password
Date: Sun, 08 Aug 1999 23:29:53 GMT

does anybody know how to setup an imap server for rdht 6.0 using @home.
basically want to store them on my linux box and have access to them on any of
my networked machines any info would be greatly appreciated.
HAZE

Yousuf Khan wrote:

> I've configured Samba on my Linux NAT box so that I can use it to share
> resources with Win95 boxes running behind it.
>
> It seems to be working, because I can see the Linux box on Network
> Neighbourhood. I've configured it with a [public] section in the smb.conf to
> give it a public directory to allow Win95 boxes to attach drives off of it.
> But everytime I try to access anything off of the Linux box, I get a
> password prompt. I don't know what that password would be, I've tried the
> root password, I'm tried my own user password from Windows, and my own user
> password from Linux, as well as the smbuser user password (currently left
> blank). None of them are working.
>
> Does anybody know what password it's looking for?


------------------------------

From: [EMAIL PROTECTED]
Subject: Re: remote access as root?
Date: Mon, 09 Aug 1999 03:01:00 GMT

In article <7oksfb$ig5$[EMAIL PROTECTED]>,
  "guru meditation" <[EMAIL PROTECTED]> wrote:
> [...]
> Since it is not encrypted, anyone with a packet sniffer can catch your
> user name and password.

Not entirely correct.  The packet sniffer *must* be running on a machine
through which your packets travel, or on a machine local [ie bridged,
not switched] to another such machine.  With the exception of the first
few or last few hops, almost all internet traffic travels through
dedicated hardware unable to even run a sniffer [such as routers], on
fully switched and secured networks.  If a hacker were to compromise one
of these systems, there would be bigger problems to worry about than
sniffing passwords.

As you pointed out, cable modems are especially dangerous.  This is
because the first-hop connection with a cable modem is effectively via a
bridge [or "hub"], and no packet-level security is provided.  Please
note, however, that the sniffer must be running on one of the local
boxes -- it is not possible to sniff remotely.

--
Bill Clark
Systems Architect
ISP Channel
http://neighborhood.ispchannel.com/


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Share what you know. Learn what you don't.

------------------------------

From: "Jacques Hebert" <[EMAIL PROTECTED]>
Subject: Re: -- telnet problem
Date: Sun, 8 Aug 1999 23:12:20 -0400

You can not login as root from a remote terminal (for security reason) but
you can login as a normal user and launch the command su ( to become the
super user) after the logon.

There is and other way to do this. You can edit the file /etc/securetty and
give root the permission to log from an other terminal than the console but
is is not recommanded.

Kooter wrote in message <7oii79$lkm$[EMAIL PROTECTED]>...
>Currently I have Linux 2.2.6 set up on 2 boxes.  I tried doing a telnet
from
>one to the other and got the login prompt that I expected.  However, when I
>try to log on as root I keep getting "login incorrect".  I know that I have
>the right password since I'm to one who set it up.  Anybody have an idea of
>what might be wrong?
>
>



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