Linux-Networking Digest #207, Volume #12 Thu, 12 Aug 99 23:13:35 EDT
Contents:
telnetd: all network ports in use ("Derek Cahill")
Re: samba ("G. Pollack")
ftp server accessing win98 shares? ("Shr00m")
STMP Mail please help (Kenneth Rush)
Re: Samba: Linux and NT (Cliff Wright)
Re: @Home Cable Modem and Linux (bob)
Ethernet Difficulties With Upgrades ([EMAIL PROTECTED])
Re: How can I find IP addr when using dhcp and adsl? (Stephen Satchell)
Re: samba (Jan-Albert van Ree)
Re: How to do Cut & Paste ..? (Allen Wong)
Re: ftp server accessing win98 shares? (Ian Westcott)
Samba: Linux and NT ("Weapon X")
Re: What is net-pf-4? (Vilmos Soti)
Re: IP Forwarding/Redirecting to a Proxy? ("D.Krivitsky")
ipchains port forward, ipmasqadm mfw (Amir Malik)
Re: This is really bugging me.: (Scott Shoemaker)
Re: Routing problems (Allen Wong)
Re: Cloning (tod)
Re: NIS/NIS+ on Linux? (Thorsten Kukuk)
----------------------------------------------------------------------------
From: "Derek Cahill" <[EMAIL PROTECTED]>
Subject: telnetd: all network ports in use
Date: Thu, 12 Aug 1999 15:27:18 -0500
I have searched high and low for the answer to this and all I find are other
people with the same unanswered questions...
I just upgraded to Linux-Mandrake 6.0 from RedHat 5.2. After the upgrade,
telnetting to the machine does not work. Instead, I get "all network ports
in use".
According to the little snippets of information I've found, this should be a
problem with the *pty* dev's. So I rm'd them and re-created them manually.
No luck. Re-rpm'd them off the CD. No luck.
Every other network service works (httpd, ip masquerading, ftp, etc.)
Any ideas? (Please cc them to me via e-mail so that I can get this problem
fixed ASAP!)
Thanks,
-Derek
------------------------------
From: "G. Pollack" <[EMAIL PROTECTED]>
Subject: Re: samba
Date: Thu, 12 Aug 1999 20:31:40 GMT
Charles Blackburn wrote:
>
> hi Jan
> I have tried this, but I have no smbadduser at all.
>
> I have an smbpasswd file in /etc, but it is empty.
>
> when I look at the PC in network neighbourhoo, it shows, but I can't can't
> access still.
>
> regards
> charles blackburn
> [EMAIL PROTECTED]
>
> Jan-Albert van Ree <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]...
> > Charles Blackburn schreef:
> > >
> > > hi all
> > >
> > > I am running the samba that is supplied under Suse linux 61
> > >
> > > when I try to log in from my win98 box it keeps asking me for a
> password.
> > > the problem is that I have tried all the passwods assigned on the system
> > > (linux & win98) but none of them work.
> >
> > You need to add a samba user, using "smbadduser XXXX" where xxx is the
> > username and then change the password for user xxx using "smbpasswd xxx"
> It
> > will update the smbpasswd file in /etc for you automatically
> > --
> > Jan-Albert "Sliver" van Ree | [EMAIL PROTECTED]
> > 3D Sims Archive maintainer | http://www.3dgamers.com
My samba distribution (downloaded from redhat) includes a script called
'makesmbpasswd.sh', which creates smbpasswd from the /etc/passwd file.
Run it as root, as follows:
makesmpasswd.sh </etc/passwd >/etc/smbpasswd
--
Gerald Pollack
Dept. of Biology, McGill University
------------------------------
From: "Shr00m" <[EMAIL PROTECTED]>
Subject: ftp server accessing win98 shares?
Date: Thu, 12 Aug 1999 20:03:56 -0400
Hey all,
I'm trying to mount a windows98 share as the /incoming directory on my linux
ftp server. That way users can upload directly to my win98 machine (bigger
HD.) This is how I'm setup:
Win98:
C:\incoming is shared
Access type: Full
Linux:
The command I use to mount the win98 share:
smbmount "\\\winbox\incoming" -c 'mount /home/ftp/incoming -f 0777 -d 0777'
With this setup, everything seems to be working fine, users can ftp in and
browse through the files in /incoming, download, and access the rest of the
server as well. The problem occurs while uploading. When a user attempts
to upload to /incoming or any of its sub-folders, this message appears:
"550: fchown not permitted" It then gives the user a message about the
unsuccessfully sent file. He then reloads the directory and sees only the
filename, the file itself has 0 bytes. The same thing happens when someone
attempts to create a folder in /incoming. In this case however, the folder
can be accessed after a reload. I'm almost positive that my /etc/ftpaccess
file is setup properly, since everything works fine when /incoming is not
mounted to the win98 share. This leads me to believe its something within
samba that is not allowing the user's ftp client to access the fchown or
chown commands. Any Suggestions? Thanks in advance.
------------------------------
From: [EMAIL PROTECTED] (Kenneth Rush)
Subject: STMP Mail please help
Date: Thu, 12 Aug 1999 17:27:22 -0800
I have Red Hat 6. I am seting up a network for school.
I am haveing trouble sending email through my Linux box
from outlook. I have POP3 working, but cant get SMTP working.
I have port 25 set to STMP in the /etc/services
I set the clients to get POP Mail from
pdc.mydomain.com and smtp set to pdc.mydomain.com And outlook
says it cant find SMTP Server.
Most of the docs i found pointed me to linux mail clients
-**** Posted from RemarQ, http://www.remarq.com/?c ****-
Search and Read Usenet Discussions in your Browser
------------------------------
From: Cliff Wright <[EMAIL PROTECTED]>
Subject: Re: Samba: Linux and NT
Date: 13 Aug 1999 01:30:53 GMT
Same here, we're having the same trouble with RedHat 6.0 and NT. We too
can telnet and ftp, we just can't log in to Linux from NT. Any help would
REALLY be appreciated!
Thanks,
cdw
================== Posted via CNET Linux Help ==================
http://www.searchlinux.com
------------------------------
From: bob <[EMAIL PROTECTED]>
Subject: Re: @Home Cable Modem and Linux
Date: Thu, 12 Aug 1999 21:29:46 -0400
Chad Pierce wrote:
> Hiya,
> I have installed Mandrake-Linux 6.0 and need help getting the @home cable
> modem to work, using my 3 Com 3C9XX ethernet card. Linux recognized the
> ethernet card, but when I go in to set up the network connection, I get no
> response from @home. Is there a trick to setting up the @home service.
> I've spent about 4 hours trying to get this to work, and am now desperate.
> I want to ditch windows, but without my cable modem, I would be lost. So I
> still have to keep it running. If anyone can help, I'd be appreciative.
> Chad
Chad, are using netcfg (set eth0 for dhcp) to setup the nic?
Are you running dhcpcd to get an ip from your ISP?
ifconfig should show you the ip of your nic (eth0)
ping yourself, your ISP gateway and any other outside ip to help you to
troubleshoot.
good luck
Bob
------------------------------
From: [EMAIL PROTECTED]
Subject: Ethernet Difficulties With Upgrades
Date: Fri, 13 Aug 1999 01:33:57 GMT
I recently upgraded my Linux Box, which serves as a gateway for a small
number of computers, with hardware and RH 6.0 (Mandrake). The network
setup is:
X------------------------------X (HUB)
| (Linux Box, 192.168.1.1) X-------X (Windows Box, 192.168.1.2)
| X
| (Internet Connection, X-------X (Windows Box, 192.168.1.3)
| 56K Modem, Dynamic IP)
\/
The motherboard and processor was upgraded to a 350 AMD with a PC100
motherboard. I have tried a 3Com Etherlink card and a FA310TX NetGear
Card (driver being tulip as detected). The problem is that the packets
that I send out using anything, including ping, telnet, etc... don't
make it. All the ACT lights blink (except for when the Linux box tries
to ping a Winbox, when only it's cooresponding light on the HUB blinks,
but not the Winbox that is being requested to ping back). To the Linux
Box, it reports that No Route to host exists when using telnet, and any
packets going from the Windows machines to the Linux box time out.
Anyone have any ideas or theories? Any help would be appreciated.
Jason
(If this is the second time this message has gone out, my apologies in
advance).
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
Subject: Re: How can I find IP addr when using dhcp and adsl?
From: [EMAIL PROTECTED] (Stephen Satchell)
Date: Fri, 13 Aug 1999 01:11:44 GMT
[EMAIL PROTECTED] (Brian Smith) wrote in <[EMAIL PROTECTED]>:
>I'm using DHCP on an ADSL connection. Using arp and ifconfig, I'm only
>able to see the ip addr as 10.0.0.2. I've looked at the dhcpc-etho-info
>file and it shows the same thing. Is there somewhere else that I can
>look?
>
>Thanks,
>Brian Smith
>
You could use tcpdump or an Ethernet packet sniffer to monitor the DHCP
exchange. The thing is, ifconfig does give the address assigned to you
as part of its output. (For example, ifconfig on my firewall system
shows my address to be part of a PBI/NBI subnetwork.)
Given that, I would suspect that your ISP gets around certain problems by
using a private network for ADSL users and provides NAT services to map
"real" addresses into the private Net-10 space. This would also prevent
you from putting up a server without them knowing about it and you paying
for the bandwidth to do so.
"ifconfig" *is* the answer. If you have more than one interface, make
sure that you are looking at all of them. In my case, I'm running two
ethernet cards with three subnetworks, which makes life, er, interesting.
Two of the subnetworks are in Net 10 (private and DMZ) while the third
network (on the second interface) is in a real IP address range.
You might want to reconsider your problem -- if you have NAT between you
and the real world, it would be real hard for a script kiddie to get to
your system... :)
------------------------------
From: Jan-Albert van Ree <[EMAIL PROTECTED]>
Subject: Re: samba
Date: Thu, 12 Aug 1999 23:25:23 +0200
Charles Blackburn schreef:
>
> hi Jan
> I have tried this, but I have no smbadduser at all.
>
> I have an smbpasswd file in /etc, but it is empty.
>
> when I look at the PC in network neighbourhoo, it shows, but I can't can't
> access still.
Check your /usr/bin directory ....
--
Jan-Albert "Sliver" van Ree | [EMAIL PROTECTED]
3D Sims Archive maintainer | http://www.3dgamers.com
------------------------------
From: Allen Wong <[EMAIL PROTECTED]>
Subject: Re: How to do Cut & Paste ..?
Date: Thu, 12 Aug 1999 18:56:32 -0700
Ravindra,
Your question really doesn't belong on a networking newsgroup but
I'll try and answer it anyway.
Move the mouse pointer to the beginning of the text you want to
copy. Hold down the left button and drag the pointer across the text.
The text should be highlighted. Release the button and move to the
window where you want to paste the text. Press the middle mouse button
at the spot where you want the text to be inserted. Hopefully, when you
set up X-Windows, you chose the option to emulate a three button mouse.
Next time post these kinds of questions to comp.os.linux.misc or
linux.redhat.misc.
Allen
--
Linux: If you're not careful, you might actually learn something.
------------------------------
From: [EMAIL PROTECTED] (Ian Westcott)
Subject: Re: ftp server accessing win98 shares?
Date: 13 Aug 1999 01:19:30 GMT
Shr00m ([EMAIL PROTECTED]) wrote:
: Hey all,
: I'm trying to mount a windows98 share as the /incoming directory on my linux
: ftp server. That way users can upload directly to my win98 machine (bigger
: HD.) This is how I'm setup:
: Win98:
: C:\incoming is shared
: Access type: Full
:
: Linux:
: The command I use to mount the win98 share:
: smbmount "\\\winbox\incoming" -c 'mount /home/ftp/incoming -f 0777 -d 0777'
Odd. I would have thought you'd have to use "\\\\winbox\\incoming" instead.
: With this setup, everything seems to be working fine, users can ftp in and
: browse through the files in /incoming, download, and access the rest of the
: server as well. The problem occurs while uploading. When a user attempts
: to upload to /incoming or any of its sub-folders, this message appears:
: "550: fchown not permitted" It then gives the user a message about the
: unsuccessfully sent file. He then reloads the directory and sees only the
: filename, the file itself has 0 bytes. The same thing happens when someone
: attempts to create a folder in /incoming. In this case however, the folder
: can be accessed after a reload. I'm almost positive that my /etc/ftpaccess
: file is setup properly, since everything works fine when /incoming is not
: mounted to the win98 share. This leads me to believe its something within
: samba that is not allowing the user's ftp client to access the fchown or
: chown commands. Any Suggestions? Thanks in advance.
The problem is that you can't chown files or folders on Win9x mounted
filesystems, since they don't have the same concepts of users and groups
that Unix does. So, most chmod and chown calls will fail. I get this often
if I'm mv'ing or cp'ing files, but the files are copied successfully.
Probably what is happening is that ftpd is creating the file, and tries to
chown it before it writes the upload to it. Since that fails, you end up
with a 0-length file. What is the solution? Well, that's not an easy one.
You CAN mount the files with smbmount so that they're owned by the user
that ftpd wants to create them as. Ie, if it wants to chown uploaded files
to the user root, then smbmount the filesystem using uid 0 (see the
smbmount page for how to do this). I -think- that the chown command will
succeed if it's already owned by the user you're asking it to chown to, but
I could be mistaken... If ftpd wants to create files with the "ftp"
account, you should be especially wary, since mounting all files read-write
with the ftp account could give anonymous users more access than you might
want them to have.
The best solution would be to hack the smb module in the kernel so that
chown's would be no-ops and succeed, but this could of course, screw some
other things up.
--
Ian Westcott Rakarra@IRC
[EMAIL PROTECTED] [EMAIL PROTECTED]
--------------------------------------------------------------------
"Demon's blood and dragon fire, falling on my wings.
Racing to the battle in the sky and ancient gods are
calling me I hear them when they sing,
of all the heroes who wait for me to die."
------------------------------
From: "Weapon X" <[EMAIL PROTECTED]>
Subject: Samba: Linux and NT
Date: Thu, 12 Aug 1999 15:00:07 -0400
Reply-To: "Weapon X" <[EMAIL PROTECTED]>
This is a multi-part message in MIME format.
=======_NextPart_000_0008_01BEE4D3.5E66F270
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
Hey, I've been working at this thing for days. I've managed to get my =
Linux box in my Network Neighborhood and it looks like I set up Samba =
and the Samba shares just fine (as per the Samba documents that I have =
printed up).=20
But when I go to access the shares from my NT box, the login screen =
comes up, I punch in my login info and it says: sorry not authorized to =
login in from this machine. (But I can Telnet and FTP into my Linux box =
just fine) Again I read all the Samba docs, but they don't seem to be =
any help.
Can anyone help me? Do you need more info?
=======_NextPart_000_0008_01BEE4D3.5E66F270
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content=3D"text/html; charset=3Diso-8859-1" =
http-equiv=3DContent-Type>
<META content=3D"MSHTML 5.00.2614.3401" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT size=3D2>Hey, I've been working at this thing for days. I've =
managed to=20
get my Linux box in my Network Neighborhood and it looks like I set up =
Samba and=20
the Samba shares just fine (as per the Samba documents that I have =
printed up).=20
</FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>But when I go to access the shares from my NT box, =
the login=20
screen comes up, I punch in my login info and it says: sorry not =
authorized to=20
login in from this machine. (But I can Telnet and FTP into my Linux box =
just=20
fine) Again I read all the Samba docs, but they don't seem to be any=20
help.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT size=3D2>Can anyone help me? Do you need more=20
info?</FONT></DIV></BODY></HTML>
=======_NextPart_000_0008_01BEE4D3.5E66F270==
------------------------------
From: Vilmos Soti <[EMAIL PROTECTED]>
Subject: Re: What is net-pf-4?
Date: Thu, 12 Aug 1999 21:07:00 GMT
Rippy wrote:
>
> Hi - I'm still fairly new at this game , but after recompiling my kernel
> , I get these errors:
>
> (just after init decides what runlevel to enter - same for level 3 and
> 5)
>
> modprobe: can't locate module net-pf-4
> modprobe: can't locate module net-pf-4
> modprobe: can't locate module net-pf-5
> modprobe: can't locate module net-pf-5
>
> Now I remember I used to see something like 'loading AppleTalk; loading
> ethernet' before I fooled around with my kernel (and modules).
>
Hi,
Add the following lines to your /etc/conf.modules file:
alias net-pf-4 off
alias net-pf-5 off
Vilmos
--
Have you recompiled your kernel today?
------------------------------
From: "D.Krivitsky" <[EMAIL PROTECTED]>
Subject: Re: IP Forwarding/Redirecting to a Proxy?
Date: Thu, 12 Aug 1999 11:20:43 -0400
>Then you can try the following:
>1. All traffic to 80 port is redirected to a local port (as if you had a
>transparent proxy).
>2. The local port is redirected to the remote proxy using SSH (you need to
>have an account at the remote proxy machine) or any other "redirector".
>
>That is, something like the following:
> ipfwadm -F -i accept -r 12345 -P tcp -S your.network/mask -D 0.0.0.0/0
80
> ssh -l your-account provider.proxy.machine -L 12345:127.0.0.1:3128
Or even without an account at the remote proxy:
ssh -l your-account 127.0.0.1 -L 12345:provider.proxy.machine:3128
------------------------------
From: Amir Malik <[EMAIL PROTECTED]>
Crossposted-To: redhat.networking.general
Subject: ipchains port forward, ipmasqadm mfw
Date: 13 Aug 1999 01:30:51 GMT
I want to forward all incoming and outgoing traffic on 121.223.224.33
(internet machine/gateway/router) on port 1755(TCP) to internal host
192.168.0.5 onto port 1755(TCP). So basically, I am setting up a streaming
media server on the .5 machine and would like in/out connecions to
121.223.224.33 to be redirected/forwarded to 192.168.0.5. I have ipmasqadm
and ipchains installed.
Here is my current ipchains firewall setup:
Chain input (policy ACCEPT):
target prot opt source destination ports
DENY tcp ------ 0.0.0.0 infoteen.com any -> telnet
Chain forward (policy DENY):
target prot opt source destination ports
MASQ all ------ 192.168.0.0/24 anywhere n/a
Chain output (policy ACCEPT):
Thanks,
Amir
================== Posted via CNET Linux Help ==================
http://www.searchlinux.com
------------------------------
From: Scott Shoemaker <[EMAIL PROTECTED]>
Subject: Re: This is really bugging me.:
Date: Wed, 11 Aug 1999 15:06:29 GMT
Andre-
I have run into similar mindboggling problems with an NT Firewall and
Cisco router. It sounds to me that the problem is most likely in the
routing. If I were you, I would temporarily disable your firewall or
set up an ANY to ANY firewall config to remove it from the picture.
Then I would do the same tests to see if the results are consistent
(They probably will be). I would then concentrate a little more on the
Cisco router. If you hooked up a sniffer and were able to see the Echo
Request come through your NT box, then I think that your router is
probably getting the request, but for one reason or another does not
know how to deliver the reply. I would use the trace command on the
cisco and do a trace to one of the IP addresses in your subnets in
question (from the Cisco), and see where it hangs up. It may be
trying to deliver the packet elsewhere. You may want to try to put a
couple of static routes in your cisco router and NT box to see what
happens. Also, make sure you do not have a routing loop that is
screwing things up.
Good Luck!
Scott
In article <7orovl$[EMAIL PROTECTED]>,
"Andre" <[EMAIL PROTECTED]> wrote:
>
> Hi:
> I've been working with the following for a week:
>
> I got a cisco router (2501) connected to the internet (T1, through
some
> DSU/CSU).
> In the ethernet side of the cisco I have a firewall on NT (running
> Checkpoint FW-1).
> This NT server has three NICs: one external (to the cisco), two
internals
> (192.168.4.x) and 192.168.2.x.
> The hosts in the segment 192.168.4.x are our internet servers (email,
ftp,
> www, etc)
> And the NIC in the segmenet 192.168.2.x goes to my intranet.
> If I'm in a host in the intranet, let's say 192.168.2.194 I can ping
the
> hosts in the segment 192.168.4.x. with no problem at all. It also
works when
> pinging from the firewall itself.
> Poblem is when any of the hosts (no matter what segment 4 or 2) try
to ping
> the cisco router, no response from it.
> From the firewall you can ping the cisco, but no from other hosts
inside any
> of the subnets.
> I tried this same configuration replacing the cisco router by a
computer (in
> Linux) as a test of the routing table of the firewall, but it worked
great.
> The weirdest thing comes now:
> The NT server I am talking about is a new server I am creating as a
> backup of another with the exact hardware and software configuration
that
> works with no problem at all.
>
> I put a sniffer in the segment where the cisco is and when the new NT
is
> installed (of course using same IP addresses than the old one -the
working
> one ) the sniffer gets the Echo Request but it never gets a Echo Reply
from
> the cisco.
> I've been thinking that may be it has to do with the Arp table in the
cisco
> router, so I turned it off and on again the clear the table but it
didn't
> solve the problem.
>
> Any ideas,
> I'm sorry for the length of the message, I don't know how to use less
words
> when trying to explain this thing.
> Thanks, Andres
>
>
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
------------------------------
From: Allen Wong <[EMAIL PROTECTED]>
Subject: Re: Routing problems
Date: Thu, 12 Aug 1999 19:03:50 -0700
Douglas,
Looks like this might not be a routing problem, but a firewall
problem. "ping" uses the ICMP protocol and you have denied output of
all ICMP packets. You need a rule like this:
/sbin/ipchains -A output -p icmp -s 192.168.1.0/24 -d 0/0 -j ACCEPT
Allen
--
Linux: If you're not careful, you might actually learn something.
------------------------------
From: tod <[EMAIL PROTECTED]>
Subject: Re: Cloning
Date: Thu, 12 Aug 1999 21:57:00 -0400
John Thompson wrote:Ghost and/or Driveclone should be able to do the job, but
> why not use "dd" instead? It should have come with your
> linux distribution and won't cost you anything more. If you
> already have ghost or driveclone you may find the interface
> nicer than dd's, but if you haven't bought these yet why not
> give dd a try first?
>
> --
>
> -John ([EMAIL PROTECTED])
John:
Thank you so much for answering. Yes, I have both utilities.
Please let me know how I should go about it. When I run either of them, they
do not see the ext2 partition.
Thanks,
Tod
BTW, I'm running Red Hat 5.2
------------------------------
From: Thorsten Kukuk <[EMAIL PROTECTED]>
Subject: Re: NIS/NIS+ on Linux?
Date: 12 Aug 1999 15:21:03 GMT
Paul D. Smith <[EMAIL PROTECTED]> wrote:
> [[Sorry if you see this twice; I posted it to c.o.l.dev.system yesterday
> but in retrospect I think this might be a more appopriate group...]]
> Question: is NIS+ available for Linux? I have Debian and I looked
Only NIS+ client support, no NIS+ server.
(http://www.suse.de/~kukuk/linux/nisplus.html)
> through the package DB and saw only NIS--is that vanilla NIS?
Yes.
> What I really want to know is if the NIS for Linux requires a slave
> server on the local subnet, as the old NIS did, or if you can config it
> to use a server that's not on your local subnet (like NIS+ on Solaris).
Add the name of the server in /etc/yp.conf and ypbind will not broadcast
for a server, but use the supplied one. But gateways between client and
server are a bad idea, they are often not fast enough.
Thorsten
--
Thorsten Kukuk http://www.suse.de/~kukuk/ [EMAIL PROTECTED]
SuSE GmbH Schanzaeckerstr. 10 90443 Nuernberg
Linux is like a Vorlon. It is incredibly powerful, gives terse,
cryptic answers and has a lot of things going on in the background.
------------------------------
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******************************