Linux-Networking Digest #897, Volume #10 Sat, 17 Apr 99 22:13:43 EDT
Contents:
Re: Linux - My honest opinion (Luca Filipozzi)
Re: Samba, a risk for your privacy? ("MattW")
Cable Modems (Roger)
Re: Linux - My honest opinion ("Eugene")
Ambitious plan? Qmail + Earthlink? ("Mitchell Maltenfort")
Re: Beowulf clusters (paulr)
SMTP problem on 2.2.5 (Latini Sandro)
Re: Samba, a risk for your privacy? (razoon)
Re: Linux/98/NT Network (Stone)
Small qmail problem(was Re: Mail server for Linux) (Marc Britten)
Re: PPP: almost there, need help (Clifford Kite)
Re: Very basic questions (Pavel Grinfeld)
3c590 -- BNC/RJ45 -- 3c575 blinking (Alexy Khrabrov)
Re: Can't See Samba Server on network (JustinC)
----------------------------------------------------------------------------
From: [EMAIL PROTECTED] (Luca Filipozzi)
Subject: Re: Linux - My honest opinion
Date: Sat, 17 Apr 1999 11:15:02 -0700
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] says...
> In article <O22S2.2175$_a6.68700@paloalto-snr1>,
> A. Feiner <[EMAIL PROTECTED]> wrote:
> >End user: this is where Linux sucks big time, and the people who work on it
> >need to look at what Microsoft had done to the desktop. They turn it into a
> >very accessible thing.
StarOffice? Personal Edition is free. Works great. Has everything you
would expect from MS Office.
> And this is where a lot of work seems to be going, with
> KDE and other stuff I've heard about and read about, though
> for my simple use of my Linux box I'm (shoot me!) happy with
> TWM.
bleegth... twm? I'm off to buy a twelve guage autoloading shotgun so that
I can put you out of your misery :).
--
Luca Filipozzi <[EMAIL PROTECTED]>
------------------------------
Reply-To: "MattW" <[EMAIL PROTECTED]>
From: "MattW" <[EMAIL PROTECTED]>
Subject: Re: Samba, a risk for your privacy?
Date: Sat, 17 Apr 1999 15:25:26 -0700
> >
> >The reason you see another computer under your "Workgroup" is [I assume]
you
> >left the default workgroup name or chose one that someone else chose.
This
> >puts you and the other host in the "same" workgroup.
>
> I am in doubt about this. Because when i did 'smbclient -L host' i saw
> under the header Workgroup another groupname besides the default
> WORKGROUP -name of mine. And under header Master i saw some strange
> names like Satanic_server. I have seen this more than once.
Your "Satanic_server" is probably someones idea of a good time :-). Keep
the netbios stuff firewalled. Tighten up host.allow to only allow your
internal IP's and deny all. You can specifically deny all traffic from
"Satanic_server". Being on a cable modem is about as safe as walking to the
store at night. For the most part "no problem" but you just never really
know for sure who your going to run into.
So get out your "Fire"wall and be prepared.
Don't stress unless you work for the DOD or something...
Matt W.
------------------------------
From: Roger <[EMAIL PROTECTED]>
Subject: Cable Modems
Date: Sun, 18 Apr 1999 00:30:35 +0100
I'm in the UK, and currently using a 56k V.90 modem.
My cable telephone company is planning to offer a cable modem service this
autumn, but I've phoned them and they can't give me much info.
I understand people in the USA have had cable modems for a while. Could some
one tell me the technical details of cable modems e.g. speed, performance,
what hardware I will need (an external box or a PCI card) and how much do cable
modems cost in the US (or wherever you are)?
Thanks
Roger Marks
[EMAIL PROTECTED]
------------------------------
From: "Eugene" <[EMAIL PROTECTED]>
Subject: Re: Linux - My honest opinion
Date: Sat, 17 Apr 1999 18:43:35 GMT
> We have been testing Linux Redhat 5.2 for the last three months. We chose
> Redhat since it seemed to be the most widely acknowledge by large corps
like
> IBM, Dell, etc. This is the 1st point:
> 1. Linux has no place in the business world unless steadily supported by
> these giants. I heard that Compaq is coming out with Alpha for Linux. This
> is a very good start.
uhh... there is already Alpha for Linux... ehh... Linux for Alpha -- that's
it!
> 2. Companies like I work for cannot rely on one sharp admin, today here,
> tomorrow there. So if I have the budget, I prefer a recognized,
> well-documented OS, with a solid backbone (Microsoft, Novell, HP-UX etc.).
You seem to be implying that Linux is not well docomented. Did you ever look
at www.linux.org/help or www.linux-howto.com ? Did you ever see all the
books about Linux that O'Reilly and QUE sell ? Heck! There is even Linux for
Dummies if that's what you mean by well documented. Just go to
www.amazon.com or your local book store. It drives me nuts when people just
assume Linux is not well documented just because it is not written by a
"giant".
Another misconseption is that the larger the company the better their tech
support is. Give me a break!
> 3. Since we are in the business for living, our management was very
> interested to know whom we call when disaster strikes. We conducted a
small
> "failure" test and called Redhat. Pleaseeee. These guys are way over our
> head, and do not really seem to be interested in helping. Tech support
> should always consider the fact that new users are calling. So you really
> should look into support more seriously.
Let's see if I understand this correctly: your boss, who doesn't know shit
about computers, decided to call RH's tech support and ask them a technical
question? Or was it way over your head as well?
The purpose of tech support is to answer questions but not to train
sysadmins. In order to be a sysadmin you have to know what you're doing. Did
you expect them to teach you everything about Linux?
Incidentally, did you have any experience at all with, say Microsoft's tech
support?
> We were impressed with the speed of file printing and sharing, plus WEB
> services. That's it. There is no serious collaboration system available,
not
> even serious database. If I am a small company (and I am) there is no
appeal
> to my sense to integrate a very limited system.
uhh, do you not consider Oracle a serious database? It's been available for
at least 6 month. Informix is also available. IBM is about to release DB2...
Or do you actually mean there is no Microsoft database available?
I don't know what you mean by collaboration system. Is that a new word for
email?
I agree that Linux is not (yet) well suited for desktop. But Linux (and
Unix) is primarily a server OS, at least that's how it was designed
originally. A huge progress has been made towards improving ease of use
(just look at KDE and GNOME...). There is still a long way or Linux to go,
but it's getting there...
--
"Ein Volk, ein Reich, ein Fuhrer" - Adolf Hitler
"One World, one Web, one Program" - Microsoft's slogan
------------------------------
From: "Mitchell Maltenfort" <[EMAIL PROTECTED]>
Subject: Ambitious plan? Qmail + Earthlink?
Date: Sat, 17 Apr 1999 12:27:56 -0700
I had a bad experience with getting my email set up with Linux prior, but
that was using current ISP and also before I knew about reconfiguring
sendmail
In the interim...I got a gift subscription to Earthlink (I move to DC in six
months, figured it would simplify relocating if I switched over while I live
in Phoenix), I learned qmail had some advantages over sendmail (smaller,
doesn't need security updates), and I found out the 2.2.x distros were due
out real soon now so it didn't pay to tear apart my system today to have to
do the customizations over again tomorrow.
So I'm waiting and reading and looking for tips. I have the notes from the
qmail page on installing vs. sendmail and configuring for dial-up, and a
bunch of the HOW-TOs from the metalab archives. So I think this should be
achievable in a long weekend...unless I get a real nasty surprise.
So I'm asking to find out if anyone has tried the qmail/Earthlink joint
conversion process - suddenly, I got a mental image of Geordi, Data and
O'Brien hunched over a console, with me as Barclay in the background - and
how it went? What should I watch for?
Thanks in advance.
------------------------------
From: paulr <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux.setup
Subject: Re: Beowulf clusters
Date: Sat, 17 Apr 1999 18:05:50 -0500
[Replies redirected to comp.os.linux.networking]
Bob Jones wrote:
>
> Anybody have any experience setting up and maintaining a Beowulf
> cluster? I'm attempting one at my school as a project, and I'd like to
> have any advice or input that you can give. I currently have 10 486DX2
> 25MHz machines to use in the cluster; any advice on how I should
> properly set them up and all? (I have a slightly working configuration
> right now, but I want to incorporate the best ideas and use the best
> software and drivers that I can.) Thanks in advance for any advice/help!
>
> _ /
> \ /
> X
> / \_
> /
That's an enormous undertaking :-)
I'd probably start by searching for "beowulf and computer"
on http://www.google.com. Beowulf technology is rather new,
and there aren't too many people doing it (right now!).
I'd guess that the 486's will be fine for trying the ideas
out!
It's a very specialized topic that may not get many
replies here...
Warm regards,
Paul
--
*******************************************
Paul Reich Motorola, Inc.
[EMAIL PROTECTED] Staff Engineer
#include <Motorola/std_disclaimer.h>
"A CPU Cycle is a Terrible Thing to waste."
*******************************************
------------------------------
From: Latini Sandro <[EMAIL PROTECTED]>
Subject: SMTP problem on 2.2.5
Date: Sat, 17 Apr 1999 20:07:59 +0000
I have a linux Mandrake 5.3 with kernel 2.2.5, ip masq support active
and a LAN with 2 pc's..
Now all work fine on the other computer, but in my linux host i can't
send (fast) email throught SMTP with Communicator 4.51! It's well
configurated and email start to send... but after few minutes the
connection go slow. I have a serial monitor to view the performance of
my modem and i saw that when i'm going to send an email, it's used only
an interval of time to send it and not continous... so for send an email
with only 200 KB of attch i have to wait like a hour! I can't understand
what is wrong... can anyone help me?
Please write to me at: [EMAIL PROTECTED]
Thanks
------------------------------
From: [EMAIL PROTECTED] (razoon)
Subject: Re: Samba, a risk for your privacy?
Date: Sat, 17 Apr 1999 22:13:08 GMT
Reply-To: [EMAIL PROTECTED]
On Sat, 17 Apr 1999 09:40:20 -0700, "MattW" <[EMAIL PROTECTED]> wrote:
>Welcome to the world of "Cable Modem".
>
>Consider your cable modem as being connected on a "hub" with everyone else
>on your block. Just like with a hub you will see the workgroups of any win
>machine connected to the hub. This is kind of an undocumented feature "bug"
>of cable modems. The problem is how do you block ports on a hub? I am on
>media one. I talked to Media one about this and they say they are working
>on a fix. I don't know how but I can no longer see all the machines on my
>block. I used to be able to. People who leave file sharing on c: with no
>password are pretty much leaving themselves wide open to the world.
>
>It's not a security flaw in SAMBA. It's the cable modem connection. Just
>because you specify which hosts you announce to will not stop them from
>announcing to you.
>
>Just be really "mindful" of what and how you share.
>
>The reason you see another computer under your "Workgroup" is [I assume] you
>left the default workgroup name or chose one that someone else chose. This
>puts you and the other host in the "same" workgroup.
I am in doubt about this. Because when i did 'smbclient -L host' i saw
under the header Workgroup another groupname besides the default
WORKGROUP -name of mine. And under header Master i saw some strange
names like Satanic_server. I have seen this more than once.
>Or you can firewall your system and deny all in/out for netbios/wins ports.
I love to play Unreal over the net.
And because i dont know which ports to open I change my policy to
ACCEPT which ofcause is kind of stupid.
And indeed after that i return from a netgame, i saw those 'intruders'
after which i restored my firewall.
Its kind of creepy.
>
>Matt W.
>
>razoon <[EMAIL PROTECTED]> wrote in message
>news:[EMAIL PROTECTED]...
>> I have running a linuxbox and 2 clients. I have cablemodem.
>> Samba is installed.
>> When i do: smbclient -L 'mypcname', sometimes i see another pc
>> under the Workgroup and Master header.
>> This while smb.conf has 'hosts.allow' and 'interfaces=192.168.0.0/24
>> 127.'
>> as rules.
>>
>> My questions
>> How is it possible i see another pc while i have those smb.conf rules?
>> Shouldn't those rules in smb.conf prevent this?
>>
>> Has this 'hacker' deliberately connected to my LAN or is it a
>> consequence
>> of having the same networkadres provided by the same ISP?
>>
>> Are the ipchains rules to block port 137:139 enough to prevent this?
>>
>> Can someone as easily as connecting to my LAN also connect to my
>> masqueraded clients?
>>
>> How can i learn more of such a 'hacker' (f.i. ip-adres)?
>>
>
------------------------------
From: Stone <[EMAIL PROTECTED]>
Subject: Re: Linux/98/NT Network
Date: Sat, 17 Apr 1999 20:38:33 -0400
I am a newbie to Linux (less than a week on this OS)
I want to basicly do the same thing but i have a stupid winmodem in my win98
machine that i want to use to dial the internet and then use a proxy app to
have linux connect to and be able to see the internet. Is this possible??
Also I would like to do printer shareing from the WIN98 machine to allow linux
to print to this printer. Can I also do this??
"Daniel G. Hyams" wrote:
> On Wed, 14 Apr 1999, Chris wrote:
>
> > I am completely new to linux. I have a small peer to peer network
> > between a NT workstation and 98 Box, I want to get the linux box to share
> > the it's drive with the rest of the network. and vice versa. I am using
> > RH5.2... where do i start?
> >
>
> I was where you were about a week ago; make sure that you follow a
> step-by-step approach to setting up the network:
>
> 1) install ethernet card properly (the startup messages when booting
> and ifconfig should help with this)
>
> 2) make sure that TCP/IP is working correctly. ping 192.168.100.1, where
> the number above is a computer on your network. Do this from each
> machine (Win98 has a ping tool also), to make sure that each computer
> sees the other.
>
> 3) make sure that name service is working properly. For a small network,
> you can probably get by with just editing /etc/hosts and /etc/lmhosts
> to map machine names to IP addresses. NT and 98 also have their
> own hosts and lmhosts files; I think that Win98 stores these files
> in c:\windows or c:\windows\system (look for a hosts.sam and rename
> it hosts; same thing for lmhosts). Now, ping mymachine, where
> "mymachine" is the name of each box on the network, to make sure
> that name service works on each box.
>
> 4) Now, you are ready for samba. First find the most recent version
> of samba (2.0.3, I think) in rpm form on the web; www.samba.org might
> help out. Install it. Then configure samba to share out the directory
> that you want (read the samba docs in /usr/doc for how to configure
> samba). Use smbmount (this is not technically part of samba) to
> mount Windows shares on your linux box. Also, use
> "smbclient -L hostname", after samba is up and running, to see
> what shared are available on a given machine.
>
> -----------------------------------------------------------
> Daniel G. Hyams
> email: [EMAIL PROTECTED]
> phone: (601) 323-4198
> -----------------------------------------------------------
------------------------------
From: [EMAIL PROTECTED] (Marc Britten)
Crossposted-To: comp.os.linux.misc
Subject: Small qmail problem(was Re: Mail server for Linux)
Date: Sat, 17 Apr 1999 20:42:30 -0400
I'm having some trouble w/ redhat 5.2 and qmail. Trying to use the
~/Maildir setup, thought I followed the instructions well, but whenever I
boot up the computer hangs on the startup script for qmail.
using(off of the top of my head) qmail-start ./Maildir/ splogger qmail
(iffy on the second half but the ./Maildir/ is what the INSTALL.maildir
file said to do) if I use the older VSM style startup script(binm2,
etc)(these are comming out of /var/qmail/boot) everything goes fine.
has anyone heard of something like this? the main reason(outside of
security) that I want to use the Maildir approach is so that qpopup
works.
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED]
says...
> Ben Short wrote:
>
> <SNIP>
>
> I had sendmail installed as default on my Slackware system, and it worked
> fine if I just used my static IP address and domain. When I tried to find
> out
> about host masquerading, it was heavy weather trying to struggle through
> the documentation, and I couldn't afford the book. So, I downloaded qmail.
> It's easy enough to install - it may require more steps than sendmail, but
> the
> docs are less cryptic; and I solved my host masquerading problem.
>
>
> --
> "I'm Keyser Soze. No, I'm Keyser Soze. I'm Keyser Soze and so's
> my wife..."
> -Monty Python plays The Usual Suspects
>
>
>
>
------------------------------
From: kite@NoSpam.%inetport.com (Clifford Kite)
Subject: Re: PPP: almost there, need help
Date: 17 Apr 1999 19:42:53 -0500
Dennis Corbo ([EMAIL PROTECTED]) wrote:
: When I dial my ISP, it seems I am getting a connection. When I bring up
: Lynx to browse, it cannot find any locations. I turned on debug in pppd
: and watched the messages file.
: These are the last few messages I get in the message file:
: localhost pppd[1566] Serial connection established
: localhost pppd[1566] Using interface ppp0
: localhost pppd[1566] Connect: ppp0 <--> /dev/modem
: localhost pppd[1566] local IP address 209.208.231.124
: localhost pppd[1566] remote IP address 209.208.231.26
: localhost kernel: IPX "followed by some stuff about IPX"
: localhost kernel: Appletalk "followed by some stuff about appletalk"
: localhost pppd[1566]: CCP: timeout sending Config-Requests
This looks OK to me but there are no pppd debug messages shown. The debug
messages are going somewhere else, /var/log/debug is one place they might
be sent. They go where directed by the way /etc/syslog.conf is configured.
"man syslog.conf" will help to understand this file.
You may just need to define one or more domain name servers (DNSs) in
/etc/resolv.conf. "man 7 resolver" tells you how. Two candidate DNSs
for you are 204.254.224.2 and 206.139.184.2 . You can put both in
resolv.conf.
--
Clifford Kite <kite@inet%port.com> Not a guru. (tm)
/* Those who can't write, write manuals. */
------------------------------
From: Pavel Grinfeld <[EMAIL PROTECTED]>
Subject: Re: Very basic questions
Date: Sat, 17 Apr 1999 20:54:32 +0000
Luca,
Thanks a lot for your responses. I've included some answers to your
questions.
Luca Filipozzi wrote:
> In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] says...
> > 0a. When the howto's say "bus" to they mean the cables?
> Which howto's? Bus normally means the backplane/motherboard of your
> computer. The data bus and the address bus are the traces on the
> motherboard that connect the CPU to the ISA and PCI sockets so that the
> CPU can access the peripheral devices. If the howto's call the lan cables
> a bus, then that's probably poor terminology.
Ethernet Howto: Section 2.3. "Even though having the ethercard on a fast bus
won't necessarily mean faster transfers, it will usually mean reduced CPU
overhead..."
>
> > 0b. What are "back-to-back" packets?
> Don't know. Which howto was this in? I need more of a context.
>
Ethernet Howto: Section 2.6: "If you can already send and receive
back-to-back packets, you just can't put more bits over the wire."
>
> > 1a. 10baseX.
> > - I do need a hub, don't I?
> These are the flavours:
> 10Base-5 : aka thicknet; uses coax; hard to find today
> 10Base-2 : aka thinnet; uses coax with tee's; still in use; not
> recommended for new installations
> 10Base-T : aka Ethernet (though they are all Ethernet); this uses CAT5 4-
> pair unshielded twisted pair cable and RJ45 plugs and jacks; this cabling
> is today's standard and as long as its CAT5, can be used with 100Base-T;
> requires a hub/switch for more than two computers
> 100Base-T : aka FastEthernet; same as 10Base-T but faster and needs
> different hubs and switches but can use same CAT5 cable
>
BTW, what are stackable hubs and what does daisy-chaining mean?
>
> > 1b. Ethernet vs. Fast Ethernet.
> > - A hub is either one or the other, but can't be both, correct?
> > - Can the local network be Fast Ethernet and connection to the
> Close. You can buy a single speed hub or you can buy a "dual-speed" hub.
> The dual-speed hub is actually a lot like a two-port switch. A hub is
> basically passive... its just a device for interconnection of computers
> in a star-topology. A switch is intelligent, and inspects the packet for
> its MAC address and routes it (in the MAC-sense) to the correct port.
>
What a dual-speed autosensing hub be a universal solution? Also, a guy told
me a store that a 100Mbs card can be used in a 10Mbs LAN and vice versa. Is
that true?
>
> > Internet regular?
> > - If I'm copying a 100Mb file from one computer to another (say,
> > ftp) is Fast Ethernet really 10 times faster or do other limitations
> > come in (like the speed of the harddisk)?
> 100Base-T is 10 times faster than 10Base-T. But the 100 and the 10 are
> the nominal speeds. The theoretical maximum is around 1/3 of these
> numbers. And, yes, computer speed and harddrive speed can matter.
> Wouldn't worry about it, though, unless you are setting up workgroup
> servers.
>
> > - The Ethernet howto talks about 32 and 16 bit cards on the one
> > hand, and Fast vs. Regular Ethernet on the other. Is it typically true
> > that 32 = Fast, 16 = Regular or are they measurements of completely
> > different things?
> 32bit card == PCI
> 16bit card == ISA
> You can find FastEthernet ISA cards (3Com makes one). But in general,
> FastEthernet cards are only available for PCI and Ethernet cards are
> available for both.
>
> > 1c. Geometry.
> Topology, you mean.
>
Yes, topology!
> > Which one is correct (if either)?
> > - All computers are connected to the hub, the hub is connected to
> > the internet (therefore, I need 1 more port than I have computers)
> This set up requires you to have valid ip addresses for all the
> computers. It has the disadvantage that there is no firewall.
>
> > - All computers are connected to the hub, one of the computers (the
> > linux box, of course)is connected to the internet and does accounting,
> > firewalling, masquerading, etc (therefore, this machine needs two NIC
> > cards).
> This setup is preferable. When you get onto the Internet 24x7, you'll
> find that your computers are probed constantly. Therefore, a firewall is,
> IMHO, absolutely necessary. You don't have to do masquerading unless you
> don't want to pay your ISP for more ip addresses. Check out
> http://www.linuxrouter.org and http://egde.fireplug.net for "boot-from-
> floopy" linux distributions geared towards home user firewalls.
>
> --
> Luca Filipozzi <[EMAIL PROTECTED]>
Once again, plenty of thanks!
Pavel
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Alexy Khrabrov)
Subject: 3c590 -- BNC/RJ45 -- 3c575 blinking
Date: 18 Apr 1999 01:00:11 GMT
Greetings linux net gurus --
I can't connect my laptop and desktop via a simple
coax ethernet, using a BNC/RJ45 convertor and a
PCMCIA card, and I hope somebody solved parts of
similar problems before and can help.
I want to connect my two home PCs, a Dell
Dimension XPS desktop with 3c590-COMBO "Vortex",
and a Dell Inspiron 7000 with 3c575 "Cyclone" Fast
Ethernet XL card. I have a problem which is
either hardware or software, and I see many
symptoms which are interesting. I'd appreciate
any hints on what to examine/try next, and
apologize if this question was covered previously
on the list -- any pointers to any solutions are
welcome.
Since my Vortex is a combo, having an RJ45, ATU,,
and a coax BNC, and I also happened to have a
media convertor BNC-RJ45 with (a) 10BaseT link
pulse sensor (switchable) (b) RX & Collision
indicators at the both ends, I decided that coax
ethernet is what I want -- since I'll also put my
future computers on it, and I have ethernet
capable Macs already. The convertor allows me to
monitor the both ends with RX/Collision LEDs and
see what's happening in the network. I hook up
3c575 to the convertor via a crosslinked RJ45
cable. The convertor has a reversed polarity
indicator to make sure teh RJ45 cable is right. I
suspect I could have just connect Cyclone and
Vortex via that crosslinked RJ45 cable, couldn't
I?
I run RedHat 5.2, kernel 2.0.36, on the Dimension,
and same thing upgraded on the Inspiron. Both
installations were made out of the box. However,
I recompiled the kernels on both machines, and I
also upgraded the Inspiron's kernel to 2.2.5 in
order to take the full advantage of the latest
PCMCIA tools, 3.0.9. So 3c575 works fine except
it dies in its sleep -- doesn't come back after
resume, but taking it out/reinserting puts the
link back online. I'll follow up with the PCMCIA
guys on that.
The hardware looks as follows: the media convertor
sits on my desk so I can observe all the
indicators. Convertor's link sense on RJ45 end is
on (since the link sense switch is on and 3c575
responds with pulses as a new RJ45 ethernet device
should). 3c575 LED for 10 Mbps is on, and 100Mbps
is properly off (my convertor is 10Mbps, and so is
Vortex). Vortex's LED is on also somewhere under
my desk.
The software configuration is as follows: the
Dimension is called yaw, and the Inspiron is
called roll. The /etc/hosts file on both machines
looks as follows:
=====/etc/hosts
127.0.0.1 lolcalhost localhost.localdomain
192.168.0.1 yaw yaw.suffix.com
192.168.0.2 roll roll.suffix.com
=====;
I configure the eth0 interface on yaw as follows:
$ ifconfig eth0 192.168.0.1 netmask 255.255.255.0 up
$ route add -net 192.168.0.0 eth0
Similarly, I configure roll as follows:
$ ifconfig eth0 192.168.0.2 netmask 255.255.255.0 up
$ route add -net 192.168.0.0 eth0
The lo interface is configured upon startup via
the standard RH configuration.
Each machine can now successively ping itself as
localhost or by name (yaw, roll). However, when I
try to ping another machine, ping waits showing
nothing, and ^C reports all packets transmitted
and lost.
Now, ifconfig on both machines reveals that TX is
0, and the lost packages show only in the
"carrier" field, not documented in my Olaf Kirch's
book (1st edition, 1995).
However, a strange quirk can be observed with
netstat -i: all the packages lost on eth0 while
trying to ping another machine, and showing only
in the "carrier" field on ifconfig eth0, are
showing as successfully RX and TX for lo, the
loopback! So they never reach the eth0 but
somehow go to loopback statistics? Do I have a
software problem and the packets just never reach
eth0 -- but why then?
Saying arp -a on both machines shows empty tables,
nothing there.
And most disturbing but promising fact is, the
following alive hardware effects can be observed
when trying to ping another machine:
When pinging yaw from roll, both ends of the
convertor blink RX AND Collision synchronously
with the packets to be sent. No RX/TX success is
reported though by ifconfig, only "carrier" (and
strangely on lo's successful RX/TX).
When pinging roll from yaw, no blinking on the
coax end is observed otehr than periodic probably
"sensing" blinks. The coax end of the convertor
blinks every so often, dozens of seconds or so,
even when teh RJ45 end is disconnected.
Now, I am at a loss as to where to look next to
connect the two little guys. Any comments?
Cheers and regards,
Alexy Khrabrov
University of Pennsylvania
Philadelphia, PA
------------------------------
From: JustinC <[EMAIL PROTECTED]>
Crossposted-To: comp.protocols.smb
Subject: Re: Can't See Samba Server on network
Date: Sun, 18 Apr 1999 01:12:56 +0100
In article <[EMAIL PROTECTED]>, Erka Koivunen
<[EMAIL PROTECTED]> writes
>
>I just solved my Samba-not-visible-on-network-neighborhood. It turned
>out that my samba guest account (which is used for browsing) wasn't
>correctly set up.
>
>* My smb.conf said:
>
> [global]
> guest account = samba
>
>* My /etc/passwd said (this was copied from a working machine):
>
> samba:*:406:103:samba:/dev/null:
>
>* But my /etc/group didn't contain group ID 103. Now, I just added it:
>
> samba::103:samba
>
>And whooooo!! - my samba server just popped into the Neighborhood!! ;-)
>
>
Hi,
I've got the same problem - samba server not appearing in network
neighbourhood - and looking in /etc/passwd there is no entry for samba,
nor is there an entry for samba in my /etc/group.
I can't find mentions of these in the HOWTO either. Can someone tell me
if I need them there. All workstations on my network will be required to
login, there will be no ad hoc browsing.
--
Justin C by the sea. mailto:[EMAIL PROTECTED]
------------------------------
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