Linux-Networking Digest #454, Volume #11 Tue, 8 Jun 99 18:13:41 EDT
Contents:
Re: Linux and POP servers ("Ian")
SuSE Linux 6.1 Networking Problem (G Jim Jones)
CD-ROM tower progress ([EMAIL PROTECTED])
Re: Linux > Win95 (peter)
<!> Free Computer Documentation (Vadim Pavlov)
NFS Problem SubOs/Linux Redhat (Afshin Poraria)
nfs client problems with Sun solaris 251 server ([EMAIL PROTECTED])
How do I bridge/route between a 10 mbps hub and a 100 mbps hub?
([EMAIL PROTECTED])
Re: Linux: ICMP Redirect, IP Source Routing unterdruecken (Detlef Bosau)
Redhat 5.2 NFS Install Fails With DHCP (Nick Boyce)
Re: Playing Audio CDs Over a LAN ([EMAIL PROTECTED])
Re: Looking to find ipmasqadm code (Stephen J. Thompson)
Re: samba question (Nicholas E Couchman)
----------------------------------------------------------------------------
From: "Ian" <[EMAIL PROTECTED]>
Subject: Re: Linux and POP servers
Date: Wed, 9 Jun 1999 08:17:24 +1200
Cost?
There is no cost.
A Linux PC (even a moderate 486 will do the job for only 15 people), with
sendmail (or qmail) and a pop server (one comes in the imap package, but
there others out there. I use ids_pop3d), and you are working.
If you want it to route emails to the internet then you need a modem and a
demand dialer (diald or and appropriate version of pppd).
The only bits of the above that cost are the hardware, though depending on
where you get Linux from and what distribution it can be anything from free
to about $100US.
Ian
Mohamad SALEH wrote in message <[EMAIL PROTECTED]>...
>Hello,
>We have an NT domain with 25 machines. We have at least 15 users and we
>want that each
>user could send and receive e-mail with a proper e-mail. Now, we have
>some POP e-mails.
>A solution with an NT Server, and an EXCHANGE Server along with one POP
>e-mail exists
>but I would prefer a Linux solution.
>Does such a solution exist? What is the cost?
>Thanks in advance
>
------------------------------
From: G Jim Jones <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: SuSE Linux 6.1 Networking Problem
Date: Tue, 08 Jun 1999 14:44:15 -0500
I have just installed SuSE linux 6.1 and it will not let me "see" the network.
I have a SMC Ultra card that I know is set up because I get a reading from it
when I use ifconfig. I can also ping that address.
However, If I ping out of the box to the network, it just sort of hangs. When I
CTRL-C the process i get a reading of 100% packet loss.
Anybody have any ideas?
Oh, and the box is permanently connected to a 10MB Ethernet LAN.
Thanks for any help
Jim Jones
New and Hopefully committed LINUX user
------------------------------
From: [EMAIL PROTECTED]
Crossposted-To: comp.os.linux.hardware,linux.redhat.misc,linux.samba
Subject: CD-ROM tower progress
Date: Tue, 08 Jun 1999 19:23:07 GMT
I started the install of the CD-ROM tower this morning! It's got 28
drives, and I've posted a couple of times with questions. I've put up a
page that I'll be updating throughout the day with the progress of our
install. It's at http://www.cu-portland.edu/is2/tower/ If you're
interested, check it out.
Greg
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------------------------------
From: [EMAIL PROTECTED] (peter)
Subject: Re: Linux > Win95
Date: Tue, 08 Jun 1999 20:13:34 GMT
In article <7jjm86$m6q$[EMAIL PROTECTED]>,
[EMAIL PROTECTED] says...
> Well just logged onto LINUX.samba and there are no messages there so never
> mind.
>
uups. I�ve about 160 here ...
> How do I use smbclient and smbmount as the helps are not that helpful
>
smbclient -L host -U username
Added interface ip=192.168.1.1 bcast=192.168.1.255 nmask=255.255.255.0
Password:
Domain=[xxxx] OS=[Windows NT 4.0] Server=[NT LAN Manager 4.0]
Sharename Type Comment
--------- ---- -------
ADMIN$ Disk Remote-Admin
IPC$ IPC Remote-IPC
C$ Disk Standardfreigabe
<SNIP>
print$ Disk Druckertreiber
Server Comment
--------- -------
Workgroup Master
--------- -------
man smbmount and man smbclient might be some help for you.
peter
=================
pilsl@
ANTISPAM
goldfisch.atat.at
------------------------------
From: [EMAIL PROTECTED] (Vadim Pavlov)
Crossposted-To: comp.os.linux.help,comp.os.linux.m68k,comp.os.linux.misc
Subject: <!> Free Computer Documentation
Date: Tue, 08 Jun 1999 20:42:03 GMT
Reply-To: [EMAIL PROTECTED]
FREE Computer Documentation
books, standards, specifications, source code, and more
200+ megabyte archive online!
Currently Available:
- graphics (quicktime, gif, jpeg, pcx, png, targa, tiff ...)
- emedia (cd-rom, dvd ...)
- internet (cgi, freebsd, html, http, javascript, rfc, tcp-ip)
- publishing (pcl, pcl4, pcl5, pdf, truetype, postscript ...)
http://doc.thesa.ru
Welcome there.
--
------------------------------
Crossposted-To: comp.os.linux.misc
From: Afshin Poraria <[EMAIL PROTECTED]>
Subject: NFS Problem SubOs/Linux Redhat
Date: Tue, 8 Jun 1999 20:05:58 GMT
Hi everyone,
I want to exoprt /home directory under Linux file system to other
machines in our network running SunOS and Solaris. I followed the NFS
HOWTO but still I can not mount the Linux directory on any other
machines and I get " NFS service not responding."
I tried another Linux box and everythings work fine.
Can anyone help?
Afshin.
------------------------------
From: [EMAIL PROTECTED]
Subject: nfs client problems with Sun solaris 251 server
Date: Tue, 08 Jun 1999 19:57:22 GMT
We mount to our linux box from a Sun E4000 NFS File server using the
following options in the linux /etc/fstab.
rw,bg,hard,intr,timeo=14,retrans=6
We have several incidents where the Sun File Server crashes, all
the NFS clients (Sun, AIX, Linux) background. When the server
comes backup the Sun and AIX jobs continue on. However on the linux
side, we get a connection refused and the jobs dies.
we are running linux 2.2.2 kernel and solaris 2.5.1 os may 1999 patch
set.
here are some of the messages
Jun 7 21:01:17 wolf65 kernel: nfs: server hac5ce not responding, still
trying
Jun 7 21:01:36 wolf65 kernel: nfs: task 16303 can't get a request slot
Jun 7 21:02:57 wolf65 kernel: nfs: task 16304 can't get a request slot
Jun 7 21:25:34 wolf65 named[276]: Cleaned cache of 0 RRs
Jun 7 21:25:34 wolf65 named[276]: USAGE 928808734 928333477
CPU=0.03u/0.01s CHILDCPU=0u/0s
Jun 7 21:25:34 wolf65 named[276]: NSTATS 928808734 928333477
Jun 7 21:25:34 wolf65 named[276]: XSTATS 928808734 928333477 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=89436 SErr=0 RQ=0 RIQ=0 RFwdQ=0 RDupQ=0
RTCP=0 SFwdR=0 SFail=0 SFErr=0 SNaAns=0 SNXD=0
Jun 7 22:24:31 wolf65 kernel: nfs: RPC call returned error 111
Jun 7 22:24:31 wolf65 kernel: RPC: task of released request still
queued!
Jun 7 22:24:31 wolf65 kernel: RPC: (task is on xprt_pending)
Jun 7 22:24:33 wolf65 kernel: nfs: RPC call returned error 111
Jun 7 22:24:33 wolf65 kernel: RPC: task of released request still
queued!
Jun 7 22:24:33 wolf65 kernel: RPC: (task is on xprt_pending)
Jun 7 22:24:33 wolf65 kernel: nfs_revalidate_inode:
denver3d/pottera02_beams2_w65.log getattr failed, ino=150022, error=-111
Jun 7 22:24:42 wolf65 kernel: nfs: server hac5ce not responding, still
trying
Jun 7 22:24:51 wolf65 kernel: nfs: RPC call returned error 111
Jun 7 22:24:51 wolf65 kernel: RPC: task of released request still
queued!
Jun 7 22:24:51 wolf65 kernel: RPC: (task is on xprt_pending)
Jun 7 22:24:51 wolf65 kernel: nfs_revalidate_inode:
denver3d/pottera02_beams2_w65.log getattr failed, ino=150022, error=-111
Jun 7 22:25:01 wolf65 kernel: nfs: server hac5ce not responding, still
trying
Jun 7 22:25:01 wolf65 kernel: nfs: RPC call returned error 111
Jun 7 22:25:01 wolf65 kernel: RPC: task of released request still
queued!
Jun 7 22:25:01 wolf65 kernel: RPC: (task is on xprt_pending)
Jun 7 22:25:01 wolf65 kernel: nfs_revalidate_inode:
denver3d/pottera02_beams2_w65.log getattr failed, ino=150022, error=-111
Jun 7 22:25:02 wolf65 kernel: nfs: RPC call returned error 111
Jun 7 22:25:02 wolf65 kernel: RPC: task of released request still
queued!
Jun 7 22:25:02 wolf65 kernel: RPC: (task is on xprt_pending)
Jun 7 22:25:02 wolf65 kernel: nfs_revalidate_inode:
denver3d/pottera02_beams2_w65.log getattr failed, ino=150022, error=-111
Jun 7 22:25:12 wolf65 kernel: nfs: server hac5ce not responding, still
trying
Jun 7 22:25:34 wolf65 named[276]: Cleaned cache of 0 RRs
Jun 7 22:25:34 wolf65 named[276]: USAGE 928812334 928333477
CPU=0.03u/0.01s CHILDCPU=0u/0s
Jun 7 22:25:34 wolf65 named[276]: NSTATS 928812334 928333477
Jun 7 22:25:34 wolf65 named[276]: XSTATS 928812334 928333477 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=90140 SErr=0 RQ=0 RIQ=0 RFwdQ=0 RDupQ=0
RTCP=0 SFwdR=0 SFail=0 SFErr=0 SNaAns=0 SNXD=0
Jun 7 22:25:38 wolf65 kernel: nfs: server hac5ce OK
Jun 7 22:25:38 wolf65 kernel: nfs: server hac5ce OK
thanks for any help
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------------------------------
From: [EMAIL PROTECTED]
Subject: How do I bridge/route between a 10 mbps hub and a 100 mbps hub?
Date: Tue, 08 Jun 1999 19:58:28 GMT
I have a 10 Mbps hub and a 100 Mbps hub (*not*
10/100, unfortunately), and I want to have devices
on each segment of my network be able to talk to
devices on the other hub.
Here are some specifics: I have a ppro-200 running
Linux (RedHat 6.0 + kernel 2.2.7) and containg two
ethernet cards - a 3com 3c509 (the 10 mbps one)
and a 3c59x (10/100). The 10/100 card is connected
to the fast hub, and the 10 mbps card is connected
to the slow hub (of course).
Now, how do I go about configuring the Linux
machine to route/bridge between these two
interfaces? Before I installed the 100 mbit hub,
everything was on the 10 mbit hub and was on the
network 192.168.1.0. I would like to make adding
the 100 mbps segment as transparent as possible;
i.e., I want to leave everything on 192.168.1.0 so
Windows users can play LAN games between the hubs
and so forth. The only perceptible difference
should be that the 100 mbps users have a faster
connection amongst themselves. Is there a way to
do this?
Schematic:
|--------|
|linux2.2|
-- fast link - | server | - slow link --
| |--------| |
| |
| |
fast hub slow hub
| | | | | | | | | | | |
(fast devices) (slow devices)
goal: acts as one network (192.168.1.0)
can this be done?
Thanks for your time,
Patrick Hearon
Rice University
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------------------------------
Date: 08 Jun 1999 22:09:00 +0200
From: [EMAIL PROTECTED] (Detlef Bosau)
Crossposted-To: de.comm.internet.routing
Subject: Re: Linux: ICMP Redirect, IP Source Routing unterdruecken
[EMAIL PROTECTED] meinte am 08.06.99
zum Thema "Re: Linux: ICMP Redirect, IP Source Routing unterdruecken":
>
> Ich bleibe dabei: SVC's sind fuer DG-Dienste Humbug. Und wenn ich
> schon eine Session definiere und das in einen SVC umsetze brauche
> ich keinen DG-Dienst. Punkt.
Es steht Dir frei, keine Datagrammdienste zu benutzen.
Wenn ich eine IP-Realisierung bauen moechte, muss ich Datagramm-Dienste
anbieten.
Wenn Du sie nicht moechtest, brauchst Du sie nicht zu nutzen.
Nebenbei: Bei diesem Ton brauchen wir uns keine neue Newsgroup zu suchen.
Ich moechte hier gerne etwas sachlich diskutieren.
Wenn Du das nicht moechtest, koennen wir hier abbrechen.
> > definiert, dass ich auf beiden Seiten ein Socket habe. Beide
> > Sockets sind durch ein Adresspaar eineindeutig gekennzeichnet. Wo
> > ist das Problem? Wenn Du ein Datagramm-Socket aufbaust, baust Du
> > das auch nicht fuer jedes Datagramm neu auf.
>
> s.o. Wir reden hier von einem kompletten redisign ohne L3.
Das ist mir bewusst und ich habe hier etwas entsprechendes angeboten.
>
> Solange du versch. L2-Typen in deinem Netz und die Uebergaenge hast,
> brauchst du die Konvergenzschicht. Ob das jetzt in L3 oder L4
> gemacht wird, ist schlussendlich egal, nur da sein muss sie.
Die Trennung von Layer 3 und Layer 4 ist nach meinem Ansatz letztlich
kuenstlich.
Dass ich eine Konvergenzschicht benoetige, habe ich geschrieben.
Das ist so bei ATM und vergleichbaren Protokollwelten.
> >
> > Nein. Absolut nicht. L3 wurde entwickelt, um grundsaetzlich
> > inkompatible Netzwerke miteinander interagieren zu lassen.
>
> Ja, was du mit einer Bridge nicht mehr hinkriegst (z.B.: X.21
> vs. Ethernet), machst du mit einem Router. Genau das meinte ich.
Und genau da reduzierst Du Netze auf einen kleinsten gemeinsamen
Nenner und entkleidest sie jeder Charakteristik.
Ich versuche, dem zu begegnen, in dem ich ein Substrat anbiete,
dass jeder Charakteristik im Prinzip gerecht werden kann.
Was die einzelne Sitzung davon nutzt, bleibt ihr und ihren Erfordernissen
ueberlassen.
Es geht nicht um X.21 vs. Ethernet, das waere eh Schicht 1 und Schicht
2 verwechselt.
Es geht nicht um Draehte.
Es geht um Anwendungen.
Es sind hinlaenglich viele Veroeffentlichungen geschrieben worden,
die bis ins kleinste Detail belegen, dass z.B. Echtzeitdatenuebertragung
mit Ethernet oder mit Frame Relay nicht geht.
Dies wird schlicht ignoriert und in unterlasteten Netzen ohne
gesonderte Ansprueche Marketingangebote gemacht.
Dennoch ist 1+1=2 und nicht =3.
Das heisst, was gegenwaertig z.B. mit Internettelephonie und Voice over
IP angeboten wird, sind vielleicht noch Angebote, die eine gewisse
Akzeptanz finden.
Dennoch geht ueber IP kein QoS. Das ist eine Tatsache. Und nun
auf IP und Ethernet QoS herbeizuluegen wie man aus DOS ein NT
gebaut hat, ist einfach von der Sache her nicht begruendbar.
Es ist schlicht unmoeglich, das ist mathematisch zeigbar und
steht in jedem anstaendigen Lehrbuch.
Ich moechte hier Wege finden, Anwendungen, die QoS Anforderungen
stellen, zu ermoeglichen.
Wenn Du darueber mit mir diskutieren moechtest, wuerde mich das freuen.
Es gibt in diesem Zusammenhang sehr interessante und wichtige Fragestellungen,
die ich gerne eroertern wuerde und fuer die ich den gedanklichen Austausch
suche.
Wir koennen hier natuerlich auch Ideenflucht betreiben. Man hat mir
das bei meiner letzten Bewerbung vorgeworfen, ich sei zu oberflaechlich.
So unverstaendlich ich das fand, ich habe keine Lust, mich hier
in oberflaechliche Diskussionen verwickeln zu lassen.
Und wir beide treiben hier im Augenblick Ideenflucht und Stammtisch
reinsten Wassers und verschwenden Netzbandbreite.
Was ich Dir versucht habe, nahezubringen, hatte ich eigentlich
dahingehend gedacht, dass daraus irgendwann mal ein Dissertationsthema
wird.
Statt darueber sachlich zu diskutieren, haben wir uns hier beide
blamiert und dem Fach, der Sache geschadet.
Und ich selber muss mich in einem Umfeld wiederfinden, in dem ich
a) zu oberflaechlichen Pseudodiskussionen verfuehrt werde und b)
offenbar nicht verstanden werde.
Das schadet nur. Das schadet auch meinem sehr ernstgemeintem Versuch,
ein Dissertationsthema zu finden. Und es schadet dem Fach.
Wir sollten die Diskussion an dieser Stelle beenden. Ich habe den
Rest Deines Artikels nicht mehr gelesen. Es ist nur noch schmerzhaft.
Ich suche den Dialog. Und ich suche das Korrektiv. Aber ich suche
das Korrektiv von der Sache her, nicht vom Gelaber. Offenbar
ist das Gespraech ueber QoS in Deutschland nicht moeglich. E-Techniker
_wollen_ mit Informatikern nicht reden, Informatiker haben, mir
ist bis heute kaum eine Ausnahme bekannt, ueberhaupt nicht begriffen,
was QoS ueberhaupt ist.
Anstatt sich mit dem Thema Netze zu beschaeftigen, beschaeftigt man
sich da mit Klickediklick und dem WWW.
Dieser Minithread hat das ueberedeutlich gezeigt.
Ich werde diese Newsgroup abbestellen.
Das ist sicher das beste.
Detlef
--
Detlef Bosau [EMAIL PROTECTED]
Bienroder Weg 79 Tel.: +49 531 303383
D2: +49 172 6819937
38106 Braunschweig, Germany Fax: +49 531 303364
>>>> PGP Public Key als Empfangsbestaetigung <<<<
## CrossPoint v3.1 R ##
------------------------------
From: Nick Boyce <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Redhat 5.2 NFS Install Fails With DHCP
Date: Tue, 08 Jun 1999 19:15:01 GMT
I've set up an NFS-exported Redhat 5.2 i386 distribution on one of our
internal Digital Unix systems so a bunch of people can try out RH 5.2 on
their PCs.
But I've hit a fatal problem with the installation process if I
tell it to use DHCP to get its network config : the installer seems to
acquire an IP address together with network mask and broadcast address for
the PC without any problem, but when I tell it where the NFS server (and
directory) is, it immediately fails, with the messages :
mount failed:
Invalid argument
mount clntudp_create:
RPC: Port mapper failure -
RPC:
unable to send
The NFS server is on a different subnet to the PC and DHCP
server; does the installer's DHCP client cope with that - i.e. does it use
any default gateway the DHCP server may supply ?
If I repeat the install,
but use "Static IP" and give the PC an IP address on the same subnet as the
NFS server, all is OK and the installation proceeds.
I've been searching
Usenet, and have quickly come to realise there seem to be many problems with
Redhat and DHCP (especially at RH 6.0), but none of the postings mentioned an
installation problem like this, still less a solution. If anyone knows
whether NFS installation to DHCP-configured targets is supported across
subnets in this way I'd be grateful to hear about it.
PS: The DHCP server is
(gulp) an NT server, which usually serves W95 clients their configs without
apparent problem, and *they* subsequently connect OK across the same subnets
to various destinations.
PPS: No, I don't want to try RH 6.0 yet - we need
to run some PD software which apparently has problems with RH 6.0 changes
(glibc2.1 or some such).
Cheers,
Nick Boyce
EDS Healthcare
Bristol, UK
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------------------------------
From: [EMAIL PROTECTED]
Subject: Re: Playing Audio CDs Over a LAN
Date: Tue, 08 Jun 1999 20:07:19 GMT
In article <7jjepj$1ka$[EMAIL PROTECTED]>,
"Michael Faurot" <[EMAIL PROTECTED]> wrote:
> Desmond Coughlan <[EMAIL PROTECTED]> wrote:
> : Ok, my question is (I suspect) quite simple. I have a 3-node LAN,
but
> : the server is buried away in a corner. How can I put an audio CD
into
> : the server, and play it (i.e., have the music heard) in another room
?
>
> : If I try to export the CD, it needs to be mounted. If I don't mount
> : it, then my host can't see it.
<snip>
> 3) Someone else will need to fill in the blank here, but there's
> also an audio broadcast protocol for X servers.
Check out esound (the "Enlightened Sound Daemon"). It's now part of the
GNOME project, I believe. It supports forwarding sound over the network.
Check it out at:
http://www.tux.org/~ricdude/EsounD.html
Note: I haven't personally tried playing a CD remotely using esd (or
anything else for that matter), so I'm not qualified to say how this
will work. Specifically, even if you use eMusic (an esd-enabled cd
player), it may well not be able to forward the sound since it just goes
through the audio cable. I dunno; try it out and see what happens.
-Patrick Hearon
Rice University
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------------------------------
From: [EMAIL PROTECTED] (Stephen J. Thompson)
Subject: Re: Looking to find ipmasqadm code
Date: Tue, 08 Jun 1999 21:24:07 GMT
Have you had any replys to this?
Thanks.
Stephen.
On Thu, 27 May 1999 02:46:04 GMT, "John Antypas" <[EMAIL PROTECTED]>
wrote:
>Since the list has been so helpful, I figure I'd ask away. It's so nice to
>see Usenet with people back as opposed to ads.. Thanks people -- hope I can
>lend a hand to someone soon.
>
>I just brought up a RH 6.0 server (2.2.5 kernel). Ipchains was easy enough
>to get going. However, port forwarding INTO the net seems to require a tool
>called ipmasqadm. This tool claims to be found on
>file://juanjox.linuxhq.com. Of course, linuxhq isn't reachable, let alone
>juanjox. Where can I find this tool or its author?
>
>John.
>
------------------------------
From: Nicholas E Couchman <[EMAIL PROTECTED]>
Subject: Re: samba question
Date: Tue, 08 Jun 1999 16:23:54 GMT
The only thing I would say is that unless you want to beat your head
against the wall even more, don't upgrade. If you do upgrade, you have to
go through a whole bunch of stuff with encrypted passwords, the program
smbpasswd, etc. It is a real pain.
--Nick
kevin wrote:
> I'm running samba (ver 1.9.18p5-1 )
>
> from my linux box i can mount my WinNT & Win95 shares just fine
>
> from my WinNT & Win95 boxes i can mount my linux shares just fine
>
> the problem:
>
> from my linux box to one of my other linux boxes i recieve this
> message
>
> /*
>
> mount error: Invalid argument
> Please look at smbmount's manual page for possible reasons
>
> */
>
> smbclient works just fine to any machine ( including the linux
> boxes ).
>
> it's only when i use smbmount that the problem pops up between
> the linux
> boxes ( only )
>
> I'm sure this is a smbfs problem. I could up grade samba to the
> latest ver.
> but i'm not through beating my head against the wall yet !!
>
> has any one experienced the same. ( and has found the problem )
> I'm using smbfs ( ver 2.0.1-4) this is the latest ver. I can
> find.
> maybe i should go backwards to an older ver. and try it.
>
> thanx in adv.
>
> kevin
------------------------------
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