Linux-Networking Digest #902, Volume #10 Sun, 18 Apr 99 07:13:48 EDT
Contents:
Re: Cable Modems ("Eugene")
Re: Can't See Samba Server on network (Erka Koivunen)
Tulip - Linksys LNE100TX - Etherfast 10/100 LAN Card ("Mike Rayborn")
Re: Hot to use VPN feature in ppp 2.3.7? (Alan E. Derhaag)
Re: hacked (=?iso-8859-1?Q?Bj=F8rn?= Ruberg)
..damn ("WingNut4")
Re: FREE Computer Documentation (Chris Sherlock)
Re: how to setup conf.modules for 4 ethernet ne2000 cards? (Greg Weeks)
DHCP server, PC has two NICs (Derek Shaw)
SAMBA or NWE ("William J. Forde")
Re: Cable Modems (Simon Pallister)
Re: Cable Modems ([EMAIL PROTECTED] (Paul E. Larson))
ip masq headache ("J. Jensen")
Re: Cable Modems (Derek Shaw)
Re: Very basic questions (Luca Filipozzi)
Deleted /etc/passwd file...!!! ("jonjon")
Re: Subnet question (Luca Filipozzi)
Re: Linux - My honest opinion ("Robert Hurst")
----------------------------------------------------------------------------
From: "Eugene" <[EMAIL PROTECTED]>
Subject: Re: Cable Modems
Date: Sun, 18 Apr 1999 01:40:39 GMT
cable modem is an external device which connects to your computer via a
network card
>From my experience, the peak download speed is about 100k/s, peak upload -
30k/s
Here in Canada cable companies give cable modems for free for as long as you
subscribe for the service (they take the cable modem back if you cancel it).
--
"Ein Volk, ein Reich, ein Fuhrer" - Adolf Hitler
"One World, one Web, one Program" - Microsoft's slogan
Roger <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]...
> 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: [EMAIL PROTECTED] (Erka Koivunen)
Crossposted-To: comp.protocols.smb
Subject: Re: Can't See Samba Server on network
Date: Sun, 18 Apr 1999 09:20:36 GMT
comp.protocols.smb / JustinC
> 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.
You don't need to have a samba guest account specifically called
'samba'. There is a switch in smb.conf called 'guest account ='.
This guest account is used only for browsing. I just happened
to create uid & gid called samba on my machine..
You can create any guest account you wish - just as long as
you use common sense: don't give it any other rights and put
asterix (*) as it's password. "No any other rights" can be
achieved by placing the guest account in it's own user group
which is never used to anything. Shell should be /dev/null.
If you specify no guest account, user 'nobody' is used. I think
browsing doesn't work then..
Erka
--
--my-address-is-falsified--look-at--> http://iki.fi/Erka.Koivunen/ --
Someday your prints will come. //Kodak
------------------------------
From: "Mike Rayborn" <[EMAIL PROTECTED]>
Subject: Tulip - Linksys LNE100TX - Etherfast 10/100 LAN Card
Date: Sat, 17 Apr 1999 21:39:20 -0400
I have a Linksys LNE100TX Etherfast 10/100 LAN Card that I can't get to work
reliably with Linux 2.0.33. I'm using tulip v0.91 4-14-99 with options
debug=6 I get the following output for PING of another host (Windows 95) on
same network.
Apr 17 20:54:54 pegasus kernel: eth0: tulip_open() irq 10.
Apr 17 20:54:54 pegasus kernel: eth0: Done tulip_open(), CSR0 00008000, CSR5
02260010 CSR6 814c2002.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:54:54 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:54:56 pegasus kernel: eth0: PNIC negotiated capability 00000080,
CSR5 02660010.
Apr 17 20:54:56 pegasus kernel: eth0: PNIC MII PHY status 782d, Link partner
report 0080, csr6 814c0000/814c2002.
Apr 17 20:54:56 pegasus kernel: eth0: interrupt csr5=0x02678016 new
csr5=0x02660010.
Apr 17 20:54:56 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:54:56 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:54:56 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:55:56 pegasus kernel: eth0: PNIC negotiated capability 00000080,
CSR5 02660010.
Apr 17 20:55:56 pegasus kernel: eth0: PNIC MII PHY status 782d, Link partner
report 0080, csr6 810e0000/810e2002.
Apr 17 20:56:56 pegasus kernel: eth0: PNIC negotiated capability 00000080,
CSR5 02660010.
Apr 17 20:56:56 pegasus kernel: eth0: PNIC MII PHY status 782d, Link partner
report 0080, csr6 810e0000/810e2002.
Apr 17 20:57:07 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:57:07 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:57:07 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:57:08 pegasus kernel: eth0: interrupt csr5=0x02670050 new
csr5=0x02660010.
Apr 17 20:57:08 pegasus kernel: In tulip_rx(), entry 0 010f0708.
Apr 17 20:57:08 pegasus kernel: In tulip_rx(), entry 0 010f0708.
Apr 17 20:57:08 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:57:08 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:57:12 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:57:12 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:57:12 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:57:17 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:57:17 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:57:17 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:57:22 pegasus kernel: eth0: interrupt csr5=0x02670014 new
csr5=0x02660010.
Apr 17 20:57:22 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:57:22 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:57:56 pegasus kernel: eth0: PNIC negotiated capability 00000080,
CSR5 02660010.
Apr 17 20:57:56 pegasus kernel: eth0: PNIC MII PHY status 782d, Link partner
report 0080, csr6 810e0000/810e2002.
Apr 17 20:58:08 pegasus kernel: eth0: interrupt csr5=0x02670050 new
csr5=0x02660010.
Apr 17 20:58:08 pegasus kernel: In tulip_rx(), entry 1 01060708.
Apr 17 20:58:08 pegasus kernel: In tulip_rx(), entry 1 01060708.
Apr 17 20:58:08 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:58:08 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:58:14 pegasus kernel: VFS: Disk change detected on device 02:28
Apr 17 20:58:22 pegasus kernel: eth0: interrupt csr5=0x02670015 new
csr5=0x02660010.
Apr 17 20:58:22 pegasus kernel: eth0: interrupt csr5=0x02660010 new
csr5=0x02660010.
Apr 17 20:58:22 pegasus kernel: eth0: exiting interrupt, csr5=0x2660010.
Apr 17 20:58:56 pegasus kernel: eth0: PNIC negotiated capability 00000080,
CSR5 02660010.
Apr 17 20:58:56 pegasus kernel: eth0: PNIC MII PHY status 782d, Link partner
report 0080, csr6 810e0000/810e2002.
The above was created by issuing ping command. 100% lost packets.
Any help would be appreciated.
Mike Rayborn
------------------------------
From: [EMAIL PROTECTED] (Alan E. Derhaag)
Crossposted-To: comp.protocols.ppp
Subject: Re: Hot to use VPN feature in ppp 2.3.7?
Date: 18 Apr 1999 01:01:29 -0700
Gregory Gee <[EMAIL PROTECTED]> writes:
> I've been looking for a way to set up a tunnel between
> a Solaris workstation and various other Solaris, NeXT, Linux computers.
[...]
> How do I use 'pppd pty'?
> How do I assign IP addresses(they can be static)?
> Can pppd pty be done over rsh instead of ssh(don't need encryption)?
>
There's an implementation of PPTP that I know uses the pty/tty that
you can get the source for at
http://http.us.debian.org/dists/main/source/net/pptp-linux_1.0.2.tar.gz
and there is some information about a server patch on the mail list
archive at http://debs.fuller.edu/.. message 222, I believe.
------------------------------
From: =?iso-8859-1?Q?Bj=F8rn?= Ruberg <[EMAIL PROTECTED]>
Subject: Re: hacked
Date: Sun, 18 Apr 1999 11:28:03 +0200
jack wrote:
>
> Does this mean that I've been hacked???
> Coul;d have this person have done any damage??
> And am installing kernel 2.2.6 with ip chains, will this help to ensure
> that I'm safe???
If you set up your firewall (ipchains) correctly, you are pretty safe.
But in addition to doing that, I'd shut off all the services (daemons)
you don't need, and I'd set up the hosts.deny and the hosts.allow files
to limit the access to your computer.
There are excellent websites on linux security, try searching for a few
of them.
Good luck!
--
Bj�rn Ruberg / http://traktor.nlh.no/beorn
Remove the .no_spam for my email address
"The more you scream the less you hear" * f i s h *
------------------------------
From: "WingNut4" <[EMAIL PROTECTED]>
Crossposted-To: alt.linux
Subject: ..damn
Date: Sun, 18 Apr 1999 19:04:06 +1000
... obviously i hit the wrong button...
anyway my end-of-line question was exactly how effective would running a
linux server be to cater for approximately 50 computers?(half of which would
probably be running Win32, the other half would likely be dumb terminals)
would there be any problems linking it up to other servers using another OS
such as NT?
Cheers
------------------------------
From: Chris Sherlock <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux,comp.os.linux.hardware,comp.os.linux.misc
Subject: Re: FREE Computer Documentation
Date: Sun, 18 Apr 1999 19:38:08 -0700
FREE Computer Documentation
books, standards, specifications, source code, and more
ftp://sunsite.unc.edu/pub/Linux/docs/LDP - The Linux Documentation
Project!
Welcome there.
--
======= Posted via Spam World, The Annoy the Hell Out of AOL Users
Network ==----
http://www.spammmers-suck.com/ Search, Read, Discuss, or Start
Your Own
------------------------------
Reply-To: [EMAIL PROTECTED]
From: [EMAIL PROTECTED] (Greg Weeks)
Subject: Re: how to setup conf.modules for 4 ethernet ne2000 cards?
Date: Sat, 17 Apr 1999 21:19:55 -0500
In article <[EMAIL PROTECTED]>,
[EMAIL PROTECTED] writes:
> If i configure 4 ethernet cards with linuxconf i get the following
> conf.modules
>
> alias eth0 ne
> options ne io=0x300 irq=5
> alias eth1 ne
> alias eth2 ne
> alias eth3 ne
>
> but the options for eth1,eth2,eth3 are obviously different
>
> I think the solution is compile again the kernel, with support for
> ne2000 ethernet cards not as module. Then adding options in loadlin or
> in /etc/lilo.conf. But i want to avoid this.
>
> Is this possible?
Yes you need to recompile the kernel. You can only use a module for 1
card of that type. You could also install 4 different types of
ethernet cards. I've always just rebuilt the kernel.
Greg Weeks
--
http://durendal.tzo.com/greg/
------------------------------
From: Derek Shaw <[EMAIL PROTECTED]>
Subject: DHCP server, PC has two NICs
Date: Sun, 18 Apr 1999 09:54:06 GMT
The ISC website says "Linux: Partial functionality: only systems
with a single network interface are supported" in regards to
their V1 (stable) version of the DHCP server
(http://www.isc.org/dhcp-v1.html). Unfortunately, this is the
situation I am faced with.
I am reluctant to use beta code (their v2 does not appear to be
out of beta yet). Does anyone have any recommendations, or
experience with the v-2 code?
TIA!
d
--
Derek Shaw
Business Information Systems
Victoria, BC.
voice: 250-885-2021 fax: 250-386-4060
------------------------------
From: "William J. Forde" <[EMAIL PROTECTED]>
Subject: SAMBA or NWE
Date: Sun, 18 Apr 1999 01:57:23 GMT
I have been using NWE for over a year now. It works okay. Is Samba
beter? Is it Faster than NWE?
thanks
------------------------------
From: Simon Pallister <[EMAIL PROTECTED]>
Subject: Re: Cable Modems
Date: Sun, 18 Apr 1999 12:35:23 +1000
here in Australia you have to buy the modem (A$500 - about 200 quid) - speed is
awesome and connection is permanent
also, I don't know about anywhere else in the world but here were are charged
for bandwidth usage, with email and newsgroups being free
Eugene wrote:
> cable modem is an external device which connects to your computer via a
> network card
> From my experience, the peak download speed is about 100k/s, peak upload -
> 30k/s
> Here in Canada cable companies give cable modems for free for as long as you
> subscribe for the service (they take the cable modem back if you cancel it).
>
> --
> "Ein Volk, ein Reich, ein Fuhrer" - Adolf Hitler
> "One World, one Web, one Program" - Microsoft's slogan
>
> Roger <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]...
> > 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]
> >
--
Simon Pallister
email: [EMAIL PROTECTED]
web: http://kiniki.com.au
------------------------------
From: whistler<blahblah>@twcny.rr.com (Paul E. Larson)
Subject: Re: Cable Modems
Date: Sun, 18 Apr 1999 02:48:02 GMT
In article <[EMAIL PROTECTED]>, Roger
<[EMAIL PROTECTED]> wrote:
>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)?
>
Speed - Fast very very fast.
Performance - Alot will depend on the cable company, the service I use
Times-Warner Roadrunner in my area is very reliable.
Hardware - Again depends on the cable company - mine supplies the modem which
is external and could supply the NIC card if wanted. I had my own 10/100 for
my internal network. I understand that there are internal cable modems but I
have no experience. In the U.S. they do sell cable modems but it probably
isn't the best solution. If the ISP changes technology the cable modem you
bought might be useless.
By the way. Linux does work with my cable modem ISP.
Paul
Get rid of the blahs to email me :}
------------------------------
From: "J. Jensen" <[EMAIL PROTECTED]>
Subject: ip masq headache
Date: Sun, 18 Apr 1999 03:23:17 -0700
I can browse web pages, get email just fine. The goal is to get Direct
Play-based network games working through the ip masq. I am using RedHat 5.2
with a 2.2.5 kernel.
I've checked the masq apps page, and while it goes into detail about using
ipautofw, is dosen't say much about using ipchains or ipmasqasm. My current
"test" rc.firewall is something like this:
# rc.firewall 0.01 alpha
#
/sbin/depmod -a
/sbin/modprobe ip_masq_ftp
echo "1" > proc/sys/net/ipv4/ip_forward
.
ipchains -M -S 7200 10 60
.
ipchains -P forward DENY
ipchains -A forward -s 192.168.1.0/24 -j MASQ
.
.
# Direct Play ports specified on
http://users.nais.com/~nevo/masq/games.html#direct
ipmasqadm autofw -A -r tcp 1000 1095 -h 192.168.1.10
ipmasqadm autofw -A -r udp 1000 1029 -h 192.168.1.10
ipmasqadm autofw -A -r udp 1031 2210 -h 192.168.1.10
ipmasqadm autofw -A -r udp 2220 5000 -h 192.168.1.10
ipmasqadm autofw -A -r udp 40000 60000 -h 192.168.1.10
<eof>
The docs reccommended using portfw, but I was not able to identify syntax
that would allow ranges (and typing in all that one port at a time would get
HUGE).
the command
ipchains -P forward ACCEPT
does not appear to help. Security is not a major issue for the moment --
i.e. "let's get it to work, then lock it down" is the approach I'm taking
for right now.
Another clue... While on MSN gaming zone, I can get ping stats for anyone
else, anyone else can get return numbers for me, but I cannot get ping
numbers for myself; my 'connection lights' are black. Also, I can enter all
the rooms fine, and games launch, but never connect.
I have not tried IPing into a game sesson from within the game.
*how does Microsoft Direct Play assign TCP and UDP ports? are there specific
ranges that it stays within? is there any documentation on this, or a
reference I might be able to check? or am I stuck using trial and error with
tcpdump? (is there a howto on tcpdump?) I just fixed the DNS problem I was
having, so at least now I can get tcpdump on the system...
*does portfw accept port ranges? I read the man page & the readmes and I
didn't see anything about a low number and a high number, as was on the
ipautofw docs.
*know of any other ideas/questions/referecnces? I'd appreciate it much!
Thanks,
John
return-email: [EMAIL PROTECTED] replace "0" with the letter o
------------------------------
From: Derek Shaw <[EMAIL PROTECTED]>
Subject: Re: Cable Modems
Date: Sun, 18 Apr 1999 10:31:55 GMT
I'm not in the U.S., but in Victoria, BC, Canada (pretty close, really).
I have a half-dozen clients using the local cable monopoly's cable modem. Speeds
are OK - about 100K bps (that's bits, not bytes). Uploads are considerably slower
-- about the same as my v.90 modem. There appear to be congestion problems for
some clients at particular times. In other words, at peak times they can't reach
anything on the internet, including pining the nameserver. This happens with
annoying regularity to those clients. It has only once happened to me.
The cost of the cable modem is included in the monthly access fee (approx. US$30).
The one-time installation charge is exactly the retail cost of the network card
they install to connect the cable modem to your PC. If the service is disco'd,
they come and get the cable modem. The client gets to keep the NIC.
Some of the service offerings include faster access for more dollars per month, and
surcharges on traffic over certain limits (differing limits for inbound, outbound
through the modem, and to and from the (virtual) website).
After much experience with straying from the confines of the @home sites (that's
the brand name) provided with the software installed, I have to conclude that most
of the demonstrations of blazing speed are contrived with the aid of a carefully
configured proxy server.
ADSL is available and (supposedly) faster, but it costs a whole lot more in my part
of the world, and I haven't yet had any experience with it.
Roger wrote:
> 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]
--
Derek Shaw
Business Information Systems
Victoria, BC.
voice: 250-885-2021 fax: 250-386-4060
------------------------------
From: [EMAIL PROTECTED] (Luca Filipozzi)
Subject: Re: Very basic questions
Date: Sat, 17 Apr 1999 18:43:30 -0700
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] says...
> 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..."
They are talking about the ISA and PCI slots and the wire traces that I
mention.
> 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."
i.e.: no delay between receiving a packet and sending one out
There can only be one "packet" on the wire at a time. When an Ethernet
Network Interface Card (NIC) wants to send a packet, it has to detect
whether the wire is free (carrier sense). If it is, then it sends. If it
isn't, it delays for a pseudo random amount of time. The amount of time
increases everytime it tries to send but finds the line busy. Eventually,
if all the Ethernet NIC's are waiting a long time, since the times are
random, one will find the wire free. This is why it's impossible to get
10Mbps throughput on a 10Mbps link.
> BTW, what are stackable hubs and what does daisy-chaining mean?
Stackable... depends on the vendor. Generally means that they have an
interconnection port that allows you to "grow" your hub by adding another
one. Can come in handy, if you only have hubs and need to add more ports
to an existing stack. A better solution would be to have a switch and
hang the hubs off that.
> 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?
A 100Mbps card can be used in a 10Mbps LAN because most cards are dual
speed. A 10Mbps card cannot be used in a 100Mbps LAN, be definition.
That's why switches and dual-speed hubs exist.
Think of a dual speed hub as a two-port switch with one port connected to
a 10Mbps hub and the other port to a 100Mbps hub. The "two-port" switch
speeds up or slows down the packet, basically. It's not universal
solution. Dual speed hubs and switches together form the basis of most
10Base-T/100Base-T networks.
--
Luca Filipozzi <[EMAIL PROTECTED]>
------------------------------
From: "jonjon" <[EMAIL PROTECTED]>
Subject: Deleted /etc/passwd file...!!!
Date: 18 Apr 1999 11:10:19 GMT
can you believe the stupidity of it...I've gone and deleted my /etc/passwd
file. Does anybody know a way of logging into a Linux box without it?
Thanks
[EMAIL PROTECTED]
------------------------------
From: [EMAIL PROTECTED] (Luca Filipozzi)
Subject: Re: Subnet question
Date: Sat, 17 Apr 1999 20:41:08 -0700
In article <[EMAIL PROTECTED]>, [EMAIL PROTECTED] says...
> Hi,
>
> Can I get away with this in (Red Hat 5.2) Linux? And am I making any
> errors in my mask, etc.?
>
> Linux Server
>
> Two Kingston KNE100TX ethernet card:
>
> Subnet mask: 255.255.255.240 (FF.FF.FF.F0) for server and
> all clients
>
> eth0 address: 192.168.255.1
> Client addresses: 192.168.255.2..127
> Client default route: 192.168.255.1
>
> eth1 address: 192.168.255.129
> Client addresses 192.168.255.130..254
> Client default route: 192.168.255.129
>
> Am I correct that only traffic with an address on the other subnet gets
> routed?
Close, but your subnet is wrong. You need to use 255.255.255.128. This
will give you two subnets:
range 192.168.255.1 - 192.168.255.126
broadcast 192.168.255.127
network 192.168.255.0
range 192.168.255.129 - 192.168.244.254
broadcast 192.168.255.255
network 192.168.255.128
so make
eth0 192.168.255.1
eth1 192.165.255.129
and the default routes
lan1 192.168.255.1
lan2 192.168.255.129
Hope this helps,
Luca
--
Luca Filipozzi <[EMAIL PROTECTED]>
------------------------------
From: "Robert Hurst" <[EMAIL PROTECTED]>
Crossposted-To: comp.os.linux,comp.os.linux.x
Subject: Re: Linux - My honest opinion
Date: Sun, 18 Apr 1999 03:43:19 GMT
You make some good points that counter the original "complainer". While it
is easy to defend to Linux, because no one can justifiably deny that it is a
technically superior OS over the other Intel OSes, Mr. A Feiner clearly
depicts common problems and perceptions that plague businesses today:
* Good IS/IT talent is hard to find, never mind keep -- that is why our
salaries have doubled within the last 2-3 years. Staffing an affordable,
crack IS/IT crew is a premium.
* Companies, both large and small, can go broke from _supporting_ the
computer technology they buy today. While the capital investments have
dropped, the operating expenses (software licensing, communications costs,
training and salaries) are soaring.
* Information will pave the way for companies to succeed, or they will fail.
It is easily understandable for companies and professionals to flock to the
herds that are following what is perceived as the mainstream... most are
venturing into uncharted waters. But, having been there, it is up to us who
are asked to lead to steer their way through and commit to "what makes
sense".
It should be of no surprise why Linux has gained such momentum over NT,
Novell, and the like... it provides the bottom-line advantage needed for
businesses to survive this economic upheaval in IS/IT.
Personally, I am and will continue to deploy Linux servers in our workplace.
My users will not be able to tell what is running in the "glass room", nor
do they care. I will simply continue to spoil them rotten with 7x24 uptime
and unheard of performance, while providing the CFO with a palatable cost.
I await the day when I offer the same for the desktops...
------------------------------
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