Linux-Networking Digest #343, Volume #12 Tue, 24 Aug 99 07:13:32 EDT
Contents:
compaq netelligent with BNC (emeurant)
/etc/hosts config question (Henry Vermeulen)
Re: fpt & http but no telnet? ("R.Wessels")
Re: Help setting up email server on Linux w/DSL connection... ("Roger B.A. Klorese")
Re: Samba as PDC for computers with dhcp IPs (Jochen Scharrlach)
jammed network - NFS malfunctioning? (Bartlomiej Jarocki)
Re: fpt & http but no telnet? (Thomas Kaemer)
Re: RH 6 network error (Nick Rout)
Re: Drivers for Compaq's Fiber Channel Host Controller? ("Tony Platt")
Re: DHCP and nameservers (James Knott)
repost: ftp & http but no telnet? ("R.Wessels")
Re: Mail Server Problem (Steve Heaven)
Wrong filedates with sambaclient ("David J. M. Karlsen")
NIS und Groups (David Ongaro)
Virtual Hosts (David Goldstein)
Re: RH 6 network error (Nick Rout)
----------------------------------------------------------------------------
From: emeurant <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.hardware,comp.os.linux.setup
Subject: compaq netelligent with BNC
Date: Tue, 24 Aug 1999 06:30:59 GMT
I have a compaq deskpro 4000 (5166)with mandrake6 and the netelligent is
recognised during setup. But impossible to ping anybody else than the
localhost adress. I'm using BNC as a media, is it possible that the
problem is due to the fact I use BNC instead of UTP?
Is there some workaround in this case ?
Thanks to all
================== Posted via CNET Linux Help ==================
http://www.searchlinux.com
------------------------------
From: [EMAIL PROTECTED] (Henry Vermeulen)
Subject: /etc/hosts config question
Date: Tue, 24 Aug 1999 08:48:40 GMT
Hi all.
I have seen on some linux servers the etc/hosts file has few setups
for different hosts.
eg. 123.456.789.1 host.domain host
123.456.789.2 anotherhost (no domainname specified)
In my hosts file i have included after each hostname the domainname
followed bij the alias of the hosts.
(Like the first line in the example) All host (windows NT4.0)
including the Linux box are in the same domain.
Does it make any difference how i set up the hosts file?
Henry Vermeulen
------------------------------
From: "R.Wessels" <[EMAIL PROTECTED]>
Subject: Re: fpt & http but no telnet?
Date: Tue, 24 Aug 1999 08:40:13 GMT
Thanks for all the answers but I think you all have the wrong question in mind!
I do not even get a login when i telnet into my machine! It just times out!
So the security files isn't an issue yet!
I hope someone can answer this! I realy need it!
Thanks!
------------------------------
From: "Roger B.A. Klorese" <[EMAIL PROTECTED]>
Crossposted-To: comp.mail.sendmail
Subject: Re: Help setting up email server on Linux w/DSL connection...
Date: Mon, 23 Aug 1999 10:40:33 -0700
Chris Severn <[EMAIL PROTECTED]> wrote in message
news:7pj03f$6o2$[EMAIL PROTECTED]...
> You don't really need an MX record. It's perfectly reasonable to
> send an email adressed to [EMAIL PROTECTED], and
> it will get delivered to that computer name.
Actually, many systems will *not* send to A records, only MX records.
> MX records are only
> required to associate a domain name with a particular machine.
> You can also send mail to [EMAIL PROTECTED]
That would be somebody@[192.168.0.20]
------------------------------
From: Jochen Scharrlach <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.help,comp.protocols.smb
Subject: Re: Samba as PDC for computers with dhcp IPs
Date: Tue, 24 Aug 1999 09:39:55 +0200
Jong schrieb:
> I'm planning to build a network with samba server for windoze clients. I
> heard that the client windozes computers have to setup sth, e.g. the
> C:\WIN\HOSTS or C:\WIN\LMHOSTS file in order to see the samba server.
> However, if the IPs are dynamically assigned to the computers, and i cannot
> have a chance to configure the windoze (cuz they r laptops, pluggin into
> outlet with dhcp occasionally), can the scheme still work?
The IP address of the clients doesn't matter, the whole Windoze stuff
usually works using broadcasts. But to have a clean environment you
should use a "WINS" Server, that is some kind of Windows name service.
You can either use a NT box for this or the samba server ("wins proxy =
yes" and "wins support = yes"). On the clients you have to set the
"Primary WINS server", either by hand or by using DHCP (replace a.b.c.d
with the IP-Adress of your WINS-server):
subnet 192.168.1.0 netmask 255.255.255.0 {
range 192.168.1.180 192.168.1.199;
option subnet-mask 255.255.255.0;
option netbios-name-servers a.b.c.d;
option netbios-node-type 8;
}
Bye,
Jochen
------------------------------
From: Bartlomiej Jarocki <[EMAIL PROTECTED]>
Subject: jammed network - NFS malfunctioning?
Date: Tue, 24 Aug 1999 09:24:43 +0200
Hello All
I'm experiencing a problem with my NFS-rooted (diskless) workstations.
When it works for couple of minutes it starts jamming my network. I
think its a nfs link that tries to exchange of some nfs packets leading
to some network traffic jam (network use statistics go crazy both on
server and client side).
I tried changing parameters:
* tried timeo,wsize,rsize,noatime options in client's fstab
* changed network cards on both client and server side (with 10 and
100 MBps speed)
* changed duplex options in card drivers
and no progress.
It doesn't seem to happen when my NFS rooted workstation does something
specific, even if left alone doing nothing but blinking login prompt it
starts jamming network after some time.
Most curious: the problem doesn't appear so often when people are gone
and my company LAN is not occupied so it most have something to do with
network load.
Please let me know if you got any suspicion for possible cure.
TIA
Bartek
PS
Some data on my OS/equipment:
Linux 2.2.5 (from Redhat 6.0)
Dec Tulip Compatible, Realtec 8129 Compatible,3Com Vortex and Etherlink
network cards
SVEC 10/100 (dual speed per port) HUB
--
_______________________________________________________________________
Bartlomiej Jarocki * Instytut Techniki i Aparatury Medycznej
* Medical Technology & Equipment Institute
mailto:[EMAIL PROTECTED] * ul.Roosevelta 118, 41-800 Zabrze, Poland.
ICQ#7152561 * tel/fax:(+48 32) 2716013 +21
------------------------------
From: Thomas Kaemer <[EMAIL PROTECTED]>
Subject: Re: fpt & http but no telnet?
Date: Tue, 24 Aug 1999 10:49:51 +0200
"R.Wessels" schrieb:
>
> Thanks for all the answers but I think you all have the wrong question in mind!
> I do not even get a login when i telnet into my machine! It just times out!
> So the security files isn't an issue yet!
>
> I hope someone can answer this! I realy need it!
>
> Thanks!
But if your incomming chain rules are deny then (I think) it looks like
time out.
Thats why I asked for the output of "ipchains -L".
CU Thomas
------------------------------
From: Nick Rout <[EMAIL PROTECTED]>
Crossposted-To: redhat.networking.general
Subject: Re: RH 6 network error
Date: Tue, 24 Aug 1999 21:11:27 +1200
I mean (although I may not have said it quite like this) that I am going to use
it as an ip masquerading door to the net for my LAN, with a ppp connection to
my isp and an eth connection to the lan. At this stage only one eth device (cos
the other will be a modem). The modem is not installed yet and I am just
getting things going a step at a time. Therefore I want the eth to connect to
the lan and at least do a ping!! LOL.
]I will try your suggestions and let you know how it goes, thanks! :-)
PS would I get the same result if my 3 year old damaged the ethernet cable when
he tripped over it? needless to say I am unpopular at present for (1) buying
another computer for this little project and (2) laying cables all over the
home to connect it to the other computers at home (which are already an
issue!!). ah well......
John Hovell wrote:
> Nick --
>
> Nick Rout wrote:
>
> > I have done an ftp install on a 486 box that I'm going to use as a
> > gateway. it has no cdrom so I did an ftp install over my lan. So I know
>
> What do you mean by gateway? Will you be using IP masquerading, or is this
> an actual routing gateway among computers with real internet addresses?
>
> > the ethernet card works. I kept the install very small to fit on the hard
> > drive. Trouble is, now its up and running but I can't access the lan! I
> > ping a win95 machine and it just sits there. If I ctrl-c it tells me it
> > sent x packets but none came back. If I do an ifconfig it shows lo and
> > eth0 as up, and heres the strange thing - the ping packets seem to have
> > gone through lo not eth0. If I run ping again then the exact number of
> > packets sent are added to the count in lo when I do an ifconfig. The
> > routing table looks ok - three entries (sorry those machines are at home
> > and I am at work so I can't remember EXACTLY what it says). If I ping
> > somewhere outside my network eg 200.200.200.200 it reports back "network
> > unreachable" which seems right.
>
> Well, it souds like /etc/sysconfig/network is set up with lo as the default
> gateway device. Try changing the device to eth0 or eth1 (you do have more
> than one ethernet card, right?) Check /etc/sysconfig/network-scripts/ and
> make sure the devices are set up correctly. Finally restart the network by
> issuing /etc/rc.d/init.d/network restart.
>
> Good luck,
> John
------------------------------
From: "Tony Platt" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup,comp.os.linux.hardware
Subject: Re: Drivers for Compaq's Fiber Channel Host Controller?
Date: Tue, 24 Aug 1999 19:44:39 +1000
None made as yet......
There is a driver for the smart series of controllers, but not the fibre
ones
http://www.insync.net/~frantzc/cpqarray.html
Tony Platt
Brian Vance wrote in message <7ps4bp$f24$[EMAIL PROTECTED]>...
>I am attempting to set up a 4 node cluster with a shared fiber channel
>storage array. Does anyone know where I could get Linux drivers for
>Compaq's Fiber Channel Host Controller Cards?
>
>Brian A. Vance
>
>Enterprise Computing Group
>Phone: 408.285.5804
>Fax: 408.285.6966
>[EMAIL PROTECTED]
>
>
>
------------------------------
From: [EMAIL PROTECTED] (James Knott)
Subject: Re: DHCP and nameservers
Date: Mon, 23 Aug 1999 17:05:22 -0400
Reply-To: James Knott <[EMAIL PROTECTED]>
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] (Frederic Faure) wrote:
>On Thu, 19 Aug 1999 22:34:03 -0400, "Jonathan Pryor" <[EMAIL PROTECTED]>
>wrote:
>>My problem is that even though the IP address is being set,
>>the nameservers don't seem to be -- I'm unable to ping any
>>other systems via DNS (though I can ping them if I know
>>their IP address).
>Before going any further, make sure your DNS actually works OK. Go to
>/etc/resolv.conf, and input the IP address of the name server, then
>ping with a name instead of an IP. If this works, then it appears that
>the DHCP is not sending the IP address of the name servers correctly.
>
>>Are nameservers supposed to be automatically updated
>>through DHCP, or do I need to know the nameservers in
>>advance? If they're supposed to be configured automatically,
>>what do I need to do to configure DHCP?
>A lot of people are working on this, since it's a real pain to have a
>mix of dynamic (DHCP) and static (DNS) tools. The reason DNS is
>static, is that computer networks used to be mostly available in big
>organizations, where you wouldn't hook up new hosts every other day,
>hence no need for an automatic update.
>
>Since any DNS domain on the Net is required to have a primary +
>secondary servers, making DNS updates automatic would only generate
>more traffic (between the primary and secondary, and also updates on
>caching-only DNS servers.) There may be other technical issues that I
>don't know about, though.
>
>To make it a bit easier to keep DHCP and DNS synchronized, there are
>graphic tools, some web-based, like Linuxconf or Webmin
>(www.linuxapps.com for more.) ISC working on a dynamic DNS, but it's
>still under development (www.isc.com).
Warp Server from IBM has a Dynamic DNS that does this. I haven't any
experience with it though.
--
E-mail [EMAIL PROTECTED]
_________________________________________________________________________
The above opinions are my own and not those of ISM Corp., a subsidiary of
IBM Canada Ltd.
------------------------------
From: "R.Wessels" <[EMAIL PROTECTED]>
Subject: repost: ftp & http but no telnet?
Date: Tue, 24 Aug 1999 08:44:36 GMT
This is a repost because i simple can't solve the problem and i realy
need help with this one!
I have a problem regarding telnet. When i try to telnet from the outside
world
into my server I get a time out and that's it no login or access denied!
Tough
if I telnet from the inside it works fine!
Here is my setup:
486 firewall with 2 nic's (eth0 and eth1)
DHCPd with a cable modem on eth0 (out.side.ip.number)
eth2 (192.168.0.1) is connected to a hub providing internet to my
internal
network
Now when I telnet to the firewall's "out.side.ip.adress" from e.g.
192.168.0.4 no problem! Telnetting on the firewall machine to itself
works fine to. Now when I try to telnet form "some.where.out.there" to
my linuxbox I get a time out and nothing more, though ftp and http work
fine from anywhere!! my /etc/host.allow says ALL:ALL
and /etc/host.deny are empty!
Can somebody explain to me how I can configure my box so that I can
telnet into it from anywhere on the planet?
I tried fixing it for 2 days an gave up on it (shouldn't but no more
time)
I hope it is a simple fix :)
Thanks!
------------------------------
From: Steve Heaven <[EMAIL PROTECTED]>
Subject: Re: Mail Server Problem
Date: Tue, 24 Aug 1999 10:21:04 +0100
sago wrote:
>
> I have just setup a linuxbox as a mailserver. I can send mail to the
> internet but cant receive. If I send a mail from some other host , say
> Hotmail to this mail server of mine it comes back saying :
>
> __________________________________________________________
> <[EMAIL PROTECTED]>:
> 205.142.28.17 does not like recipient.
> Remote host said: 553 <[EMAIL PROTECTED]>... this site does not relay
> Giving up on 205.142.28.17.
>
This is a sendmail config problem not a Linux Networking problem and you
would probably get a better answer from the folks in a sendmail group.
What you need to do is setup the
/etc/mail/LocalIP
/etc/mail/relay_allow
/etc/mail/RelayTo
files. If you want more info, then go to www.sendmail.org and look in
the HOWTOs
HTH
Steve
------------------------------
From: "David J. M. Karlsen" <[EMAIL PROTECTED]>
Subject: Wrong filedates with sambaclient
Date: Tue, 24 Aug 1999 12:01:09 +0200
I've mounted a share from a NT-server, but all the files have wrong
filedates (like in 197x). The files have right dates under native NT.
Running 2.0.5a client.
Anyone know how to get rid of the prob?
--
David J. M. Karlsen [[EMAIL PROTECTED]] -*- LAB: [EMAIL PROTECTED] -*-
http://cmr.no
fon: [+47] 55 57 43 29 -*- fax: [+47] 55 57 40 41
------------------------------
From: [EMAIL PROTECTED] (David Ongaro)
Subject: NIS und Groups
Date: 24 Aug 1999 10:27:53 GMT
Wir haben hier am Institut einen Linux Rechner (SuSE 6.1) mit NIS und NFS
installiert. Alle Benutzer die mit m anfangen werden in der Passwortdatei
/etc/passwd mit der Zeile
+@musers::::::
importiert. In der /etc/group steht die Zeile
+:::
Damit sollten eigentlich auch die zugehoerigen Benutzergruppen importiert
werden. Loggt man sich ueber kdm ein Funktioniert das auch (unter SuSE
runlevel 3) funktioniert das auch. Nur sobald man einen Terminallogin oder
Telnetlogin macht, ist man nach Meinung des Linux rechners nur noch in
seiner Primary group!
Auch wenn man sich im runlevel 2 einloggt und dann X Startet hat man das
selbe Problem.
Das kann natuerlich nicht im Sinne des Erfinders sein, da es dann schon
beim Login Probleme mit den Permissions gibt. Prinzipiell muesste der
Linux Rechner die Gruppen ja kennen, ueber kdm geht es ja! Also ist die
Loesung sicher ganz einfach und ihr werdet sie sicher gerne mitteilen ;-)
Gruss
David
------------------------------
From: David Goldstein <[EMAIL PROTECTED]>
Subject: Virtual Hosts
Date: Tue, 24 Aug 1999 11:46:30 +0200
Okay, this might not be the correct ng for this post, but here goes
:) I am trying to set up a virtual host on my Linux box so that I can
test my website before uploading to a server. I want to mirror it
exactly as it is found on the server, of course :)
I have read through the how-to's and configure httpd.conf according to
the how-to. The problem is that when I try to access the virtual site I
get a _cannot access startfile http://192.168.0.2_ error.
I have set up a directory /home/webvir for this purpose and in the
httpd.conf file there is a line with _DirectoryRoot /home/webvir_. In
this directory, there is already an index.html file.
Does anyone have an idea about what I may have done incorrectly here?
Any help would be greatly appreciated :)
Thx, in advance!
David G
------------------------------
From: Nick Rout <[EMAIL PROTECTED]>
Crossposted-To: redhat.networking.general
Subject: Re: RH 6 network error
Date: Tue, 24 Aug 1999 22:36:40 +1200
aha! found it! the ethernet irq had changed (why the hell does it do that!?), so i
had to find a win95 boot disk and then use a dos based config to alter the irq on
the ethernet card and whammo! it works! my 3 year old will have his faith in
daddy's ability to network restored (mind you he thinks networking is largely
acheived with the wrist strap, hence howls from the when he connects the clip end
to the dog!).
Thanks again.
I did check those things, it all seemed ok in /etc/sysconfig/network, but i
couldn't make head nor tail of the scripts in
/etc/sysconfig/network-scripts/.......
Nick Rout wrote:
> I mean (although I may not have said it quite like this) that I am going to use
> it as an ip masquerading door to the net for my LAN, with a ppp connection to
> my isp and an eth connection to the lan. At this stage only one eth device (cos
> the other will be a modem). The modem is not installed yet and I am just
> getting things going a step at a time. Therefore I want the eth to connect to
> the lan and at least do a ping!! LOL.
>
> ]I will try your suggestions and let you know how it goes, thanks! :-)
>
> PS would I get the same result if my 3 year old damaged the ethernet cable when
> he tripped over it? needless to say I am unpopular at present for (1) buying
> another computer for this little project and (2) laying cables all over the
> home to connect it to the other computers at home (which are already an
> issue!!). ah well......
>
> John Hovell wrote:
>
> > Nick --
> >
> > Nick Rout wrote:
> >
> > > I have done an ftp install on a 486 box that I'm going to use as a
> > > gateway. it has no cdrom so I did an ftp install over my lan. So I know
> >
> > What do you mean by gateway? Will you be using IP masquerading, or is this
> > an actual routing gateway among computers with real internet addresses?
> >
> > > the ethernet card works. I kept the install very small to fit on the hard
> > > drive. Trouble is, now its up and running but I can't access the lan! I
> > > ping a win95 machine and it just sits there. If I ctrl-c it tells me it
> > > sent x packets but none came back. If I do an ifconfig it shows lo and
> > > eth0 as up, and heres the strange thing - the ping packets seem to have
> > > gone through lo not eth0. If I run ping again then the exact number of
> > > packets sent are added to the count in lo when I do an ifconfig. The
> > > routing table looks ok - three entries (sorry those machines are at home
> > > and I am at work so I can't remember EXACTLY what it says). If I ping
> > > somewhere outside my network eg 200.200.200.200 it reports back "network
> > > unreachable" which seems right.
> >
> > Well, it souds like /etc/sysconfig/network is set up with lo as the default
> > gateway device. Try changing the device to eth0 or eth1 (you do have more
> > than one ethernet card, right?) Check /etc/sysconfig/network-scripts/ and
> > make sure the devices are set up correctly. Finally restart the network by
> > issuing /etc/rc.d/init.d/network restart.
> >
> > Good luck,
> > John
------------------------------
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