Re: July snapshots

[Bruce Cran]

On Mon, 13 Jul 2009 08:31:44 -0500
Andrew Gould  wrote:

> Does anyone know if any snapshots (iso files at
> ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/) will created in July?
> 


I don't know, but you can always find daily snapshots at
http://pub.allbsd.org/FreeBSD-snapshots/

-- 
Bruce Cran
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Re: turning off the wireless network radio

[Paul B. Mahol]

On 7/14/09, Chad Perrin  wrote:
> On Tue, Jul 14, 2009 at 12:20:25PM +0200, Maciej Milewski wrote:
>> Dnia wtorek 14 lipiec 2009 o 07:38:49 Chad Perrin napisal/(a):
>> > I'm having a real bitch of a time trying to figure out how to shut down
>> > the wireless adapter's radio.  The driver module won't unload as long as
>> > the adapter is active, and neither ifconfig nor iwicontrol are providing
>> > a solution either.
>> >
>> > I'm using (as you may have guessed by mention of iwicontrol) an Intel
>> > wireless adapter, with if_iwi.ko as my driver module.  It's an Intel
>> > PRO/Wireless 2200BG Network Connection according to pciconf -lv.
>> >
>> > Thanks in advance.
>> You can try doing this by software switch:
>> sysctl -a | grep rfkill
>> dev.ath.0.rfkill: 0
>> This switch should disable radio.
>> I don't know if it is supported by iwi driver but you can try.
>
> At first glance, it looks like the iwi equivalent is dev.iwi.0.radio,
> where 1 is on and 0 is off.  It won't let me set it to 0, though,
> claiming it's a read-only sysctl setting.
>
> . . . and trying to set the debug.iwi sysctl setting to 1 caused the
> computer to reboot (not intended behavior, I'm sure).  Bah.  I wonder if

Please provide backtrace.

> there's something wrong with my driver.
>
> --
> Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ]
> Quoth Steinbach's Guideline for Systems Programmers: "Never test for an
> error condition you don't know how to handle."
>


-- 
Paul
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offer laptop accessory 17

[Bill luo]

To: Purchase Dept 

I am very happy to know you from website http://www.freebsddiary.org
that you are doing business of laptop parts.
This is Bill from HongKong Flier Developers Co.,Limited, a reputed
supplier of laptop battery. 
Now we are able to provide more than 250pcs batteries for different
models, developing new models every month.
We have put much importance to quality control and service, so with low
RMA.
Besides replacement laptop battery, we also have a wide and stable
source for original/genuine HDD, laptop batteries, laptop adapters. 
I would like to provide detailed pricelists if you request, and hope
that we have chance to do lots of business in the future. 

We apologize for any inconviences if you are not interested in the
offer! 

Thank you! 

Have a nice day! 

Bill Luo (Sales Supervisor) 
HongKong Flier Developers Co.,Limited 
Tel: +86-755-2828 4807Fax: +86-755-8957 8417 
www.flierdevelopers.com 
b...@flierdevelopers.com
billfl...@hotmail.com 
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Re: Automatic screen lock when leaving desk

[Frederique Rijsdijk]

Hi all,

Frederique Rijsdijk wrote:
> I'm looking for a way to automaticaly lock my X session when I leave my
> desk. Probably just using 'xlockmore -mode blank' or such. But how to
> detect?


Thanks all for the replies. To answer some questions:

- I prefer automatic. I already have a key on my kb mapped to 'xlockmore
-mode blank', but in some rare cases I still forget to do it, or I'm in
an application that overrides the mapping and the key will not work. I'm
using a DasKeyboard, that doesn't have any 'unused' keys like media stuff.

I guess I'll look into the bluetooth thing. That looks quite doable.

Thanks!


-- Frederique

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What does one call name server registration?

[Michael David Crawford]

Hi,

I'm having a problem making myself clear to my domain name registrar's 
tech support.


I have set up djbdns on a couple of my own servers, and want them 
registered AS name servers with whoever handles such registration.


Most registrars allow one to just enter their hostnames and IPs and they 
take care of it automagically.


But my once-beloved registrar HJ Linnen just outsourced all their 
registration services to NameScout, and they haven't got a clue.


When I looked into it in my account page at NameScout, they said to 
email tech support, so I did.


And tech support replied with the end-user instructions for assigning 
name servers to the domains one has registered with them.  That's not 
what I want.


What I have are two pairs in the following format:

  1.2.3.4 a.ns.example.com
  5.6.7.8 b.ns.example.com

I would like a domain to be able to set its name servers to be 
a.ns.example.com and b.ns.example.com, and then when that domain is 
resolved the lookup is delegated to either 1.2.3.4 or 5.6.7.8.


What is the process called, of registering such name servers?  If I can 
tell NameScout support to do that for me, possibly they can get 
themselves a clue on my behalf.


Thanks!

Mike
--
Michael David Crawford
m...@prgmr.com

   prgmr.com - We Don't Assume You Are Stupid.

  Xen-Powered Virtual Private Servers: http://prgmr.com/xen
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Re: What does one call name server registration?

[Olivier Nicole]

Hi Mike,

> What I have are two pairs in the following format:
> 
>1.2.3.4 a.ns.example.com
>5.6.7.8 b.ns.example.com

I think that what you are looking for is what is called NS reccord for
the domain ns.example.com

Good luck,

Olivier
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Re: Automatic screen lock when leaving desk

[Matthew Seaman]

Chad Perrin wrote:

On Tue, Jul 14, 2009 at 05:32:01PM +0200, Frederique Rijsdijk wrote:

Hi,

I'm looking for a way to automaticaly lock my X session when I leave my
desk. Probably just using 'xlockmore -mode blank' or such. But how to
detect?


Why does it have to be automatic?  Something like xlockmore or slock can
be tied to a keyboard shortcut, such as ++.  If for some
reason you require automatic locking, though, you could perhaps set up
some kind of Bluetooth connection detection if you have a Bluetooth
enabled cellphone in your pocket (or something else that would work as a
Bluetooth token) and if your computer has the right hardware.  I imagine
writing a daemon in Perl or Ruby that checks for loss of a Bluetooth
connection would be easier than getting Bluetooth working in the first
place might be, depending on the state of Bluetooth support in FreeBSD.

I'm not really well-versed in the ephemera of what is used to determine
"inactivity" on a computer, but if it's reasonably easy (or if there's a
Perl module for it), that seems like the obvious way to handle it --
though of course that may present problems, such as false positives on
detecting "inactivity" when watching a movie on the computer or something
like that.



I used to be a NeXTie, and the Screensaver.app there had a really nifty 
little feature.  I'm surprised it's not been copied into other screensaver

applications since, as it's pretty simple.  They just had a facility where
moving the mouse cursor to one corner of the screen and leaving it still
for a few seconds would cause the screen saver / screen lock to come on
straight away.

Conversely you could designate another corner of the screen as "don't turn
on screensaver even after an extended period of idleness".  Being a NeXT app
this was all configurable by dragging little '+' or '-' icons around a
scaled down image of the screen, or off it entirely if you didn't want that
facility.

Cheers,

Matthew

--
Dr Matthew J Seaman MA, D.Phil.   7 Priory Courtyard
 Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
 Kent, CT11 9PW



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Re: What does one call name server registration?

[Valentin Bud]

On Wed, Jul 15, 2009 at 12:52 PM, Michael David Crawford wrote:

> Hi,
>
> I'm having a problem making myself clear to my domain name registrar's tech
> support.
>
> I have set up djbdns on a couple of my own servers, and want them
> registered AS name servers with whoever handles such registration.
>
> Most registrars allow one to just enter their hostnames and IPs and they
> take care of it automagically.
>
> But my once-beloved registrar HJ Linnen just outsourced all their
> registration services to NameScout, and they haven't got a clue.
>
> When I looked into it in my account page at NameScout, they said to email
> tech support, so I did.
>
> And tech support replied with the end-user instructions for assigning name
> servers to the domains one has registered with them.  That's not what I
> want.
>
> What I have are two pairs in the following format:
>
>  1.2.3.4 a.ns.example.com
>  5.6.7.8 b.ns.example.com
>
> I would like a domain to be able to set its name servers to be
> a.ns.example.com and b.ns.example.com, and then when that domain is
> resolved the lookup is delegated to either 1.2.3.4 or 5.6.7.8.
>
> What is the process called, of registering such name servers?  If I can
> tell NameScout support to do that for me, possibly they can get themselves a
> clue on my behalf.
>
> Thanks!
>
> Mike
> --
> Michael David Crawford
> m...@prgmr.com
>
>   prgmr.com - We Don't Assume You Are Stupid.
>
>  Xen-Powered Virtual Private Servers: http://prgmr.com/xen
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>

Hello Mike,

 Just to point it out what i understand from your post is that you want the
NSs to
authoritative for your domain (example.com). So when someone queries for
xyz.example.com
your servers (a.ns.example OR b.ns.example.com) answer that query.

 Lets suppose the following example:
You have 2 server that you want to enable BIND (or whatever DNS application)
so they
are authoritative for example.com.
Server A - 1.2.3.4 - ns.A.example.com
Server B - 5.6.7.8 - ns.B.example.com

 First when you register a domain you must point a NS for that domain. So
when you register
example.com you will assign ns.A.example.com (and B) as NSs for that
particular domain.
Now if the NS for one domain has the name of the domain in it (sort of
speak, excuse my
non-tech language) as ns.A.*example.com* does you need a so called GLUE
record for
those NSs. There you point out the IP add of the NS in question.

Hope I understood right what you want and that my post helps you.

a great day,
v
-- 
network warrior since 2005
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Re: Automatic screen lock when leaving desk

[Polytropon]

On Wed, 15 Jul 2009 11:45:02 +0100, Matthew Seaman 
 wrote:
> I used to be a NeXTie, and the Screensaver.app there had a really nifty 
> little feature.  I'm surprised it's not been copied into other screensaver
> applications since, as it's pretty simple.  They just had a facility where
> moving the mouse cursor to one corner of the screen and leaving it still
> for a few seconds would cause the screen saver / screen lock to come on
> straight away.
> 
> Conversely you could designate another corner of the screen as "don't turn
> on screensaver even after an extended period of idleness".  Being a NeXT app
> this was all configurable by dragging little '+' or '-' icons around a
> scaled down image of the screen, or off it entirely if you didn't want that
> facility.

This feature has been implemented in the (original) Norton
Commander (Version 4 or 5, I think), but just as a screensaver,
no real lock. Remember, it was DOS.




-- 
Polytropon
>From Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
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Re: July snapshots

[Andrew Gould]

On Wed, Jul 15, 2009 at 1:52 AM, Bruce Cran wrote:
> On Mon, 13 Jul 2009 08:31:44 -0500
> Andrew Gould  wrote:
>
>> Does anyone know if any snapshots (iso files at
>> ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/) will created in July?
>>
>
>
> I don't know, but you can always find daily snapshots at
> http://pub.allbsd.org/FreeBSD-snapshots/
>
> --
> Bruce Cran
>

Thanks,

You just saved me a lot of compile time.

Andrew
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Re: What does one call name server registration?

[Michael David Crawford]

Valentin and Olivier,

Thank you very much for your kind help.

I think what I needed were *both* NS and GLUE records.  The NS record 
establishes a host as a nameserver, and the GLUE record allows the name 
server's own domain name to be within the domain it is the name server 
for - that is, GLUE records prevent infinite loops when looking up the 
domain it is a part of.


I found a page in NameScout's Help section that said that if I just 
enter a totally new name server into my domain admin, they would take 
care of registering it automatically.  That seems to have worked, but it 
was not at all obvious that that's what I needed to do.


They also don't have any kind of automated interface for changing the 
name server info - one has to email tech support to do that.


I could see it causing a lot of trouble, if confused users enter 
incorrect info, and NameScout interprets that as a request to establish 
NS and GLUE records for a new name server!


Clearly, I myself have a lot of studying to do.

The Wikipedia article on the Domain Name System is very helpful, for 
anyone else wanting info on this topic.


Mike
--
Michael David Crawford
m...@prgmr.com

   prgmr.com - We Don't Assume You Are Stupid.

  Xen-Powered Virtual Private Servers: http://prgmr.com/xen
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Re: Automatic screen lock when leaving desk

[Jonathan McKeown]

On Wednesday 15 July 2009 12:45:02 Matthew Seaman wrote:
>
> I used to be a NeXTie, and the Screensaver.app there had a really nifty
> little feature.  I'm surprised it's not been copied into other screensaver
> applications since, as it's pretty simple.  They just had a facility where
> moving the mouse cursor to one corner of the screen and leaving it still
> for a few seconds would cause the screen saver / screen lock to come on
> straight away.
>
> Conversely you could designate another corner of the screen as "don't turn
> on screensaver even after an extended period of idleness".  Being a NeXT
> app this was all configurable by dragging little '+' or '-' icons around a
> scaled down image of the screen, or off it entirely if you didn't want that
> facility.

KDE 3.5 provides this feature - it's under Advanced Options on the screensaver 
configuration.
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Re: What does one call name server registration?

[Jon Radel]

Michael David Crawford wrote:


Valentin and Olivier,

Thank you very much for your kind help.

I think what I needed were *both* NS and GLUE records.  The NS record 
establishes a host as a nameserver, and the GLUE record allows the name 
server's own domain name to be within the domain it is the name server 
for - that is, GLUE records prevent infinite loops when looking up the 
domain it is a part of.


Yes and no.

Glue records make it possible to find the the NS in the first place; 
you're avoiding a broken chain rather than any risk of loops.




zone for example.com

mydomainIN  NS  ns.mydomain.example.com.



zone for mydomain.example.com

IN  NS  ns.mydomain.example.com.
ns  IN  A   123.123.123.123



If you have the above, you've properly delegated the 
mydomain.example.com zone to ns.mydomain.example.com, but you'll never 
reach anything in that zone, as the only A record for the server is in 
the zone you're trying to find the server for, and you have no idea 
where that server is...


So you have to put a

ns.mydomain.example.com.IN  A   123.123.123.123

record in the example.com zone so that recursive lookups can find that 
one critical address and access the mydomain zone.  That's the glue record.



--

--Jon Radel
j...@radel.com


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Re: Install from a USB Pen

[Randi Harper]

On 7/14/09, Fbsd1  wrote:
> What are the instructions for using this 8.0 memstick.img?
> What raw size memstick is needed?
> Is the 8.0 memstick.img the same content as the cd1 disk?

Sigh. Reply-to-all fail. Resending.

It's all in the email about the 8.0 BETA(s). Use dd, a memstick that
 is of equal to or greater size than the memstick.img, and no, it's
 different from disc1. It currently lacks packages, but it does include
 livefs.

 -- randi
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Chelsio T320 10GE-Adapter - things to consider for FreeBSD 7.2?

[Ewald Jenisch]

Hi,

I'd like to install a Chelsio T320 10GE Adapter in one of our systems
running 7.2 (AMD64).

As far as I've read FreeBSD comes with the drivers for this beast
(cxgb(4))already.

Can the corresponding interface be configured with "ifconfig" just
like any other interface?

Anything special to consider?

Update for firmware needed - if yes, can it be done directly from
FreeBSD?

Thanks much in advance for any clue,
-ewald
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Re: Bash and arrays

[Jay Hall]

On Jul 15, 2009, at 12:53 AM, Dan Nelson wrote:


In the last episode (Jul 15), Bryan Venteicher said:
I thought I understood how arrays work in bash, but I have been  
proven

wrong.  I am reading lines from a file and placing them in an array.
However, when I am finished, the array has a length of 0.

Following is the code I am using.

#!/usr/local/bin/bash
COUNTER=0
cat ./test_file.txt | while read LINE
do
echo ${LINE}
FOO[${COUNTER}]=${LINE}
COUNTER=`expr ${COUNTER} + 1`
done

echo ${#f...@]}
echo ${#FOO[*]}


And, here is the output.

test_file
file_size
0
0

Thanks in advance for any help you can offer.


The right hand side of the pipe is running in its own subshell so
it has its own copy of FOO.

One fix is
#!/usr/local/bin/bash
COUNTER=0
while read LINE
do
echo ${LINE}
FOO[${COUNTER}]=${LINE}
COUNTER=`expr ${COUNTER} + 1`
done < ./test_file.txt


Another alternative would be to use zsh, which makes sure that the  
last
component of a pipeline is run in the current shell process so the  
original

script would have worked.

--
Dan Nelson
dnel...@allantgroup.com

Thanks to everyone for their help.  I had forgotten the right side of  
the pipe runs in its own subshell.



Jay

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PPPoE server (high traffic in WDM network)

[Michelle Konzack]

Hello,

I am using since over  10 years  Debian  GNU/Linux  and  3 years  longer
NetBSD. Also I have a running PicoBSD box.

Now I have a problem more grave...

I am ongoing to install a CWDM (1GE) and DWDM  (10GE)  network  for  the
Alvarion BreezeACCESS VL (38 base stations) and more then  200  Iskratel
FTTH DSLAMS of 96 ports (each with 100MBit, but only one  1GE  Upstream)
each.

What I now need are a PPPoE Severs (round-robin and loadbalancing) which
must work using FreeRadius and PostgreSQL.

There was someone on the  which  has  suggested  me  to  use
FreeBSD, because the PPPoE it is already build to  authenticate  against
Radius.

So, what I like to know is, if I have a 1GE and 10GE network,  how  many
clients can  one  PPPoE  Server  handel  and  what  are  the  CPU/Memory
requirements?

There is a little problem to get small but  reliabel  Servers  with  TWO
10GE interfaces.

I think, consumer mainboards are not suitabel even someone told me under
Linux, I need 2 MHz CPU-Speed and 2 MByte of Memory per client...

Please note, that I am ongoing ISP with over  150.000  customers  in  DE
between Freiburg and Karlsruhe (Baden-Württemberg)  and  using  consumer
mainboards is NOT reliabel since in the last 6 years I lost at least  20
per year in 280 Low-Cost Servers.

A "Sun Fire X4100M2" would be more reliabel... but even the smallest CPU
would be overkill because the machine has only 1GE interfaces.

Any suggestions?

Note 1: Even if I use a Sun Fire, I would prefer a microBSD
running from an industrial SD/CF card.

Note:  Please do NOT CC me, I am on the list and read it...

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Systemadministrator
Tamay Dogan Network
Debian GNU/Linux Consultant

-- 
Linux-User #280138 with the Linux Counter, http://counter.li.org/
# Debian GNU/Linux Consultant #
 Michelle Konzack
   c/o Vertriebsp. KabelBW
   Blumenstrasse 2
Jabber linux4miche...@jabber.ccc.de   77694 Kehl/Germany
IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947
ICQ #328449886Tel. FR: +33  6  61925193
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Re: Chelsio T320 10GE-Adapter - things to consider for FreeBSD 7.2?

[Adam Vande More]

On Wed, Jul 15, 2009 at 12:14 PM, Ewald Jenisch  wrote:

> Hi,
>
> I'd like to install a Chelsio T320 10GE Adapter in one of our systems
> running 7.2 (AMD64).
>
> As far as I've read FreeBSD comes with the drivers for this beast
> (cxgb(4))already.
>
> Can the corresponding interface be configured with "ifconfig" just
> like any other interface?


>
> Anything special to consider?
>
> Update for firmware needed - if yes, can it be done directly from
> FreeBSD?
>
> Thanks much in advance for any clue,
> -ewald
>
> I think you'll find most of your answers here:

man cxgb

I have no idea on the stability of the driver though.


-- 
Adam Vande More
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Re: What does one call name server registration?

[Al Plant]

Michael David Crawford wrote:

Hi,

I'm having a problem making myself clear to my domain name registrar's 
tech support.


I have set up djbdns on a couple of my own servers, and want them 
registered AS name servers with whoever handles such registration.


Most registrars allow one to just enter their hostnames and IPs and they 
take care of it automagically.


But my once-beloved registrar HJ Linnen just outsourced all their 
registration services to NameScout, and they haven't got a clue.


When I looked into it in my account page at NameScout, they said to 
email tech support, so I did.


And tech support replied with the end-user instructions for assigning 
name servers to the domains one has registered with them.  That's not 
what I want.


What I have are two pairs in the following format:

  1.2.3.4 a.ns.example.com
  5.6.7.8 b.ns.example.com

I would like a domain to be able to set its name servers to be 
a.ns.example.com and b.ns.example.com, and then when that domain is 
resolved the lookup is delegated to either 1.2.3.4 or 5.6.7.8.


What is the process called, of registering such name servers?  If I can 
tell NameScout support to do that for me, possibly they can get 
themselves a clue on my behalf.


Thanks!

Mike

###


Aloha,

You can use Dotster to register any server right from the web-interface. 
No people no nothing to deal with. Doesn't your registrar have that service?


--

~Al Plant - Honolulu, Hawaii -  Phone:  808-284-2740
  + http://hawaiidakine.com + http://freebsdinfo.org +
  + http://aloha50.net   - Supporting - FreeBSD 6.* - 7.* - 8.* +
  < email: n...@hdk5.net >
"All that's really worth doing is what we do for others."- Lewis Carrol

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5000' ethernet?

[David Kelly]

Not directly FreeBSD related, but how much of a chance is there that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?

IIRC the classic ethernet problem limiting the distance between the
farthest points on a network had to do with timing and collisions. If
these two NICs are configured full duplex then it seems one would have
no idea how far away the other was due to timing issues.

100baseT uses lower power drivers than 10baseT, so perhaps 10baseT would
work better.

In any case, have boxes of cat5 on order so as to find out myself.

Are there any particular range extenders you have used and would
recommend for making this task a sure thing on the first try? Perhaps I
should put an inexpensive ethernet switch at each junction to serve as a
regenerative repeater?

-- 
David Kelly N4HHE, dke...@hiwaay.net

Whom computers would destroy, they must first drive mad.
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Re: 5000' ethernet?

[Al Plant]

David Kelly wrote:

Not directly FreeBSD related, but how much of a chance is there that two
machines could communicate directly over 5,000 feet of cat5 with no
special hardware?

IIRC the classic ethernet problem limiting the distance between the
farthest points on a network had to do with timing and collisions. If
these two NICs are configured full duplex then it seems one would have
no idea how far away the other was due to timing issues.

100baseT uses lower power drivers than 10baseT, so perhaps 10baseT would
work better.

In any case, have boxes of cat5 on order so as to find out myself.

Are there any particular range extenders you have used and would
recommend for making this task a sure thing on the first try? Perhaps I
should put an inexpensive ethernet switch at each junction to serve as a
regenerative repeater?


Aloha,

About a year ago we had to do this and the solution was a fiber optic 
cable between the PC's and  server room. Used 1000 Nic cards at each end.




~Al Plant - Honolulu, Hawaii -  Phone:  808-284-2740
  + http://hawaiidakine.com + http://freebsdinfo.org +
  + http://aloha50.net   - Supporting - FreeBSD 6.* - 7.* - 8.* +
  < email: n...@hdk5.net >
"All that's really worth doing is what we do for others."- Lewis Carrol

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Re: 5000' ethernet?

[Michelle Konzack]

Hello David,

Am 2009-07-15 14:47:18, schrieb David Kelly:
> Not directly FreeBSD related, but how much of a chance is there that two
> machines could communicate directly over 5,000 feet of cat5 with no
> special hardware?

I do not know hoe much a feet is in meters but AFAIK arround 0,3 which
mean, you are talking about 1.5km or 1 mile ?

I would say, NO chance with Ethernet...  it is limited to 500 meters.

> 100baseT uses lower power drivers than 10baseT, so perhaps 10baseT would
> work better.

There are inexpensive FiberOptic Transponder (I am using a bunch  of  it
from Transmode for my CWDM 1GE and DWDM 10GE network)

The 100 Mbit Transponder cost  arround  600 Euro  (each)  and  for  your
5000 feets you need only  an  inexpensive  FiberOptic  cable.  EVEN  the
cheapes one would transfer 1 Gbit at this distance.

> Are there any particular range extenders you have used and would
> recommend for making this task a sure thing on the first try? Perhaps I
> should put an inexpensive ethernet switch at each junction to serve as a
> regenerative repeater?

You have to use at least 3 Repeaters which NEED electricity.
Do you know this?

5000 feet CAT5, 3 Repeater plus electric installation  cost  more,  then
the FiberOptic Cable with two Transponder.  And of course,  no  one  can
sniff traffic on FiberOptic and you have no worry about magnetic  fields
disturbing your 5000 feet...

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Systemadministrator
Tamay Dogan Network
Debian GNU/Linux Consultant

-- 
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Re: 5000' ethernet?

[David Kelly]

On Wed, Jul 15, 2009 at 10:27:35PM +0200, Michelle Konzack wrote:
> Hello David,
> 
> Am 2009-07-15 14:47:18, schrieb David Kelly:
> > Not directly FreeBSD related, but how much of a chance is there that two
> > machines could communicate directly over 5,000 feet of cat5 with no
> > special hardware?
> 
> I do not know hoe much a feet is in meters but AFAIK arround 0,3 which
> mean, you are talking about 1.5km or 1 mile ?

Yes, roughly a mile which is 5280 feet. Maybe less, but no more than a
mile. Won't really know until I get there and start running cable.

> There are inexpensive FiberOptic Transponder (I am using a bunch  of
> it from Transmode for my CWDM 1GE and DWDM 10GE network)
> 
> The 100 Mbit Transponder cost  arround  600 Euro  (each)  and  for
> your 5000 feets you need only  an  inexpensive  FiberOptic  cable.
> EVEN  the cheapes one would transfer 1 Gbit at this distance.

What I'm not (yet) seeing is a fiber optic transceiver listed with
matching fiber optic cable. The transceivers seem inexpensive vs the cost
of the cable.

> > Are there any particular range extenders you have used and would
> > recommend for making this task a sure thing on the first try?
> > Perhaps I should put an inexpensive ethernet switch at each junction
> > to serve as a regenerative repeater?
> 
> You have to use at least 3 Repeaters which NEED electricity. Do you
> know this?

Yes, of course.

> 5000 feet CAT5, 3 Repeater plus electric installation  cost  more,
> then the FiberOptic Cable with two Transponder.  And of course,  no
> one  can sniff traffic on FiberOptic and you have no worry about
> magnetic  fields disturbing your 5000 feet...

No one is going to sniff *this* one.

Am not finding sources of fiber optic cable as easily as I can find
fiber optic transceivers.

100baseT ethernet switches are about $25 each if one will serve as a
regenerative repeater.

Did I mention this is a temporary installation?

-- 
David Kelly N4HHE, dke...@hiwaay.net

Whom computers would destroy, they must first drive mad.
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Re: OFFTOPIC: HP DL1xx vs IBM x3250 vs DELL R200

[Karl Vogel]

>> On Wed, 15 Jul 2009 08:53:04 +0300, 
>> Peter  said:

P> I wanted to get some feedback about HP DL1xx vs IBM x3250 vs DELL R200
P> since if they are more silent than supermicro I can go with them.

   Something else to consider - I have two IBM x3400 boxes running 7.1, but
   unfortunately I'll have to move to either Red Hat or SUSE Enterprise Linux
   to get support from IBM.  The boxes work fine most of the time, but about
   every 40-60 days one of them will simply stop working with no dumpfile,
   error message, or anything else.  A power-cycle is needed to reboot.
   The hardware's been checked, and the firmware's all up to date.

   I don't know if an x3250 and an x3400 are close enough hardware-wise
   for this to matter.

-- 
Karl Vogel  I don't speak for the USAF or my company
Top oxymorons #25:  Software documentation
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Re: 5000' ethernet?

[mikel . king]

<20090715202734.gh29...@tamay-dogan.net> 
<20090715210752.ge16...@grumpy.dyndns.org>
From: Mikel 
Date: Wed, 15 Jul 2009 17:38:21 -0400
Content-type: text/plain; charset=US-ASCII
Content-transfer-encoding: 7bit

David,

 
You can run upto 1.5 miles on a lx fiber based solution but will likely 
require a skilled installer to setup that much cable for you.

Depending on your locale I am may be able to put connect you to a supplier.

Have you considered a wireless direct beam solution?  Especially 
considering the 'temporary' nature of this install.

___
Cheers,
Mikel King
CEO, Olivent Technologies

follow-me http://twitter.com/mikelking

.. Original Message ...
On Wed, 15 Jul 2009 16:07:52 -0500 "David Kelly"  wrote:
>On Wed, Jul 15, 2009 at 10:27:35PM +0200, Michelle Konzack wrote:
>> Hello David,
>> 
>> Am 2009-07-15 14:47:18, schrieb David Kelly:
>> > Not directly FreeBSD related, but how much of a chance is there that 
two
>> > machines could communicate directly over 5,000 feet of cat5 with no
>> > special hardware?
>> 
>> I do not know hoe much a feet is in meters but AFAIK arround 0,3 which
>> mean, you are talking about 1.5km or 1 mile ?
>
>Yes, roughly a mile which is 5280 feet. Maybe less, but no more than a
>mile. Won't really know until I get there and start running cable.
>
>> There are inexpensive FiberOptic Transponder (I am using a bunch  of
>> it from Transmode for my CWDM 1GE and DWDM 10GE network)
>> 
>> The 100 Mbit Transponder cost  arround  600 Euro  (each)  and  for
>> your 5000 feets you need only  an  inexpensive  FiberOptic  cable.
>> EVEN  the cheapes one would transfer 1 Gbit at this distance.
>
>What I'm not (yet) seeing is a fiber optic transceiver listed with
>matching fiber optic cable. The transceivers seem inexpensive vs the cost
>of the cable.
>
>> > Are there any particular range extenders you have used and would
>> > recommend for making this task a sure thing on the first try?
>> > Perhaps I should put an inexpensive ethernet switch at each junction
>> > to serve as a regenerative repeater?
>> 
>> You have to use at least 3 Repeaters which NEED electricity. Do you
>> know this?
>
>Yes, of course.
>
>> 5000 feet CAT5, 3 Repeater plus electric installation  cost  more,
>> then the FiberOptic Cable with two Transponder.  And of course,  no
>> one  can sniff traffic on FiberOptic and you have no worry about
>> magnetic  fields disturbing your 5000 feet...
>
>No one is going to sniff *this* one.
>
>Am not finding sources of fiber optic cable as easily as I can find
>fiber optic transceivers.
>
>100baseT ethernet switches are about $25 each if one will serve as a
>regenerative repeater.
>
>Did I mention this is a temporary installation?
>
>-- 
>David Kelly N4HHE, dke...@hiwaay.net
>
>Whom computers would destroy, they must first drive mad.
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Re: Attempting ZFS Only Install of 7.2

[Jason Garrett]

On Mon, Jul 13, 2009 at 18:09, Drew Tomlinson wrote:

> Jason Garrett wrote:
>
>>
>>
>> On Mon, Jul 13, 2009 at 13:30, Drew Tomlinson 
>> > d...@mykitchentable.net>> wrote:
>>
>>Jason Garrett wrote:
>>
>>>snip
>>
>>I see you tried the zpool import and export, but did you
>>perform `mkdir /boot/zfs` directly before `zpool export tank
>>&& zpool import tank` ?
>>
>>I just have to ask because I did not see that specified, and
>>you mention not being able to find zpool.cache. /boot/zfs is
>>where zpool.cache hides out.
>>
>>Yes I did.  However I figured out my problem.  I was chrooted into
>>/dist and the zpool.cache was being written to /boot/zfs (as you
>>mention).  But because of the chroot, when I checked /boot/zfs, I
>>was *really* checking /dist/boot/zfs.  Thus my problem.  :)
>>
>>However I'm still having difficulty.  I suspect I don't have a
>>/boot/loader that supports zfs filesystems as I just boot to the
>>'OK" prompt.  An 'lsdev' only shows BIOS devices but I've seen
>>posts on the Net that indicate I should have zfs devices listed
>>there too if I have a proper /boot/loader.  I've used the one from
>>both 7.2-RELEASE.iso and 8.0-BETA1.iso but no luck.  Do you know
>>of any way I can confirm or deny my suspicion?
>>
>>
>>
>> I am in the same spot you are now. I started the process yesterday but had
>> to quit because it got too late. Apparently the few who have written these
>> guides have gotten it to work, but that still eludes me. I'll post back if I
>> get it working or have any new developments.
>>
>
> Well you're doing better than me.  I've been at this for about 10 days off
> and on.  :)
>
> Cheers,
>
>
> Drew
>

Ok, now a few days later and still frustrated. Basically I narrowed my
install down to one drive, divided up with gpt. I used a few sections from
http://wiki.freebsd.org/ZFSOnRootWithZFSboot - specifially the section on
installing the sources from /dist/8.0-BETA1 as well as rebuilding the loader
as this guide says.

I actually got it to load the kernel, goes through that ok. As soon as it
tries to mount the root filesystem, it hangs with the following messages.
(Won't respond to the keyboard anymore)

---

Trying to mount root from zfs:zroot
ROOT MOUNT ERROR:
If you have invalid mount options, reboot, and first try the following from
the loader prompt:

set vfs.root.mountfrom.options=rw (did this,no luck.. also
switched to an /etc/fstab layout, still no go)

and then remove the invalid mount options from /etc/fstab.

Loader Variables:
vfs.root.mountfrom=zfs:zroot
vfs.root.mountfrom.options=rw,noatime (this is from the /etc/fstab attempt)

--

Then it describes some specifications on how to use the :.

I just don't get how some are getting this working, yet it comes so hard for
others.

Drew, I hope you have had better luck than I. I may just give up until it is
a viable solution.


>
> --
> Be a Great Magician!
> Visit The Alchemist's Warehouse
>
> http://www.alchemistswarehouse.com
>
>
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Re: Automatic screen lock when leaving desk

[Chad Perrin]

On Wed, Jul 15, 2009 at 11:45:02AM +0100, Matthew Seaman wrote:
> 
> I used to be a NeXTie, and the Screensaver.app there had a really nifty 
> little feature.  I'm surprised it's not been copied into other screensaver
> applications since, as it's pretty simple.  They just had a facility where
> moving the mouse cursor to one corner of the screen and leaving it still
> for a few seconds would cause the screen saver / screen lock to come on
> straight away.
> 
> Conversely you could designate another corner of the screen as "don't turn
> on screensaver even after an extended period of idleness".  Being a NeXT app
> this was all configurable by dragging little '+' or '-' icons around a
> scaled down image of the screen, or off it entirely if you didn't want that
> facility.

Does /usr/ports/x11/xscreensaver.app do this?  It almost certainly
requires the GNUStep framework as a dependency, but you may find a number
of old "friends" (applications you liked) are available for that
framework, in varying states of faithfulness to what you remember.  If
you like the old interface as a whole, you might try using WindowMaker
with the GNUStep framework.

I actually used WindowMaker/GNUStep for a while, and liked it, but
eventually decided I liked Sawfish slightly more, then that I liked AHWM
a *lot* more.

-- 
Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ]
Quoth Alan Kay: "I invented the term 'Object-Oriented', and I can tell
you I did not have C++ in mind."


pgpc0w4wExAkF.pgp
Description: PGP signature

Re: 5000' ethernet?

[Michelle Konzack]

Hello *,

Am 2009-07-15 17:38:33, schrieb mikel.k...@olivent.com:
> David,
> 
>  
> You can run upto 1.5 miles on a lx fiber based solution but will likely 
> require a skilled installer to setup that much cable for you.
> 
> Depending on your locale I am may be able to put connect you to a supplier.
> 
> Have you considered a wireless direct beam solution?  Especially 
> considering the 'temporary' nature of this install.

I could recommend the "Alvarion BreezeNet B100" (or the B300).  However,
they are working in the 3.8 GHz and 5.0-5.8 GHz Band but have a range up
to 40km (25miles).

Here in Germany I have payed 3800 Euro for a complete 100 Mbit Bridge.

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Systemadministrator
Tamay Dogan Network
Debian GNU/Linux Consultant

-- 
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 Michelle Konzack
   c/o Vertriebsp. KabelBW
   Blumenstrasse 2
Jabber linux4miche...@jabber.ccc.de   77694 Kehl/Germany
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Re: 5000' ethernet?

[Michael Powell]

David Kelly wrote:

> Not directly FreeBSD related, but how much of a chance is there that two
> machines could communicate directly over 5,000 feet of cat5 with no
> special hardware?
> 
> IIRC the classic ethernet problem limiting the distance between the
> farthest points on a network had to do with timing and collisions. If
> these two NICs are configured full duplex then it seems one would have
> no idea how far away the other was due to timing issues.

No. Ethernet uses a protocol design called Carrier Sense Multiple Access 
with Collision Detect, or CSMA/CD. The maximum lengths are indeed related to 
timing and the timing is a direct result of the propagation delay in the 
medium. The velocity factor will be some percentage of the speed of light.

So the time it takes for the smallest Ethernet frame to get from the two 
farthest nodes will determine a window in which the two most distant nodes 
upon attempting a transmit can tell that a collision occurred and 
retransmit. The node(s) attempting to recover from a collision condition 
will each generate a random time back off in the hope that one will begin a 
packet transmission not at the same time as the other. 

The timing patterns of the frames are finite and not infinitely adjustable, 
e.g. there are limits which will declare a packet was not received and a 
resend is therefore required. What you will experience with 5,000 of Cat5 in 
full duplex is these limits will always be exceeded and the endpoints will 
believe no packets are arriving at their destinations and lock itself into a 
continual resend loop. When both ends do this you will have essentially 
either very little, or zero throughput.

The max distance for UTP is 328 ft. Divide the 5,000 by 328 and it will tell 
you how many bridges, hubs, or switches you will need to regenerate the 
signal. You may find devices purporting to 'range extenders', but even these 
will have distance limitations requiring more than one. Foofaraw.

 
> 100baseT uses lower power drivers than 10baseT, so perhaps 10baseT would
> work better.
> 
> In any case, have boxes of cat5 on order so as to find out myself.
> 
[snip]

Sounds like a waste of time. Single mode fiber can support GB speeds some as 
far as 10km. Single mode fiber is what you want to look at for this 
distance. I'm not as current with long haul wireless links, but you may also 
find this could be done with the right wireless endpoints and good antennae, 
albeit you won't get the speed single mode fiber is capable of.

-Mike
  


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feet to metres [was: 5000' ethernet?]

[andrew clarke]

On Wed 2009-07-15 22:27:35 UTC+0200, Michelle Konzack 
(bsd4miche...@tamay-dogan.net) wrote:

> > Not directly FreeBSD related, but how much of a chance is there that two
> > machines could communicate directly over 5,000 feet of cat5 with no
> > special hardware?
> 
> I do not know hoe much a feet is in meters but AFAIK arround 0,3 which
> mean, you are talking about 1.5km or 1 mile ?

Just FYI, you can use FreeBSD's 'units' (/usr/bin/units) to convert
feet to metres:

$ units "5000 feet" metres
* 1524

There is also a more advanced version in /usr/ports/math/units/ that
installs to /usr/local/bin/gunits.
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Virtualbox Bridged networking

[Leonardo M . Ramé]

Hi, I'm using VirtualBox 2.2.51_OSE r20451 and found in the wiki that Bridged 
networking is not ported yet :-(. 

Any news about this?.



 Leonardo M. Ramé
http://leonardorame.blogspot.com




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Re: Attempting ZFS Only Install of 7.2

[Jason Garrett]

Top Post, I know... but has anyone on @current tried a full on ZFS on ROOT
with GPTZFSBOOT?

Both Drew and I have both tried the guide at
http://lulf.geeknest.org/blog/freebsd/Setting_up_a_zfs-only_system/ (dead
link now :( )

I get as far as the message I detailed before using parts from another
guide. I am hoping for both of us, that someone here knows even a little
bit.

Thanks,

Jason

On Wed, Jul 15, 2009 at 17:12, Jason Garrett  wrote:

>
>
> On Mon, Jul 13, 2009 at 18:09, Drew Tomlinson wrote:
>
>> Jason Garrett wrote:
>>
>>>
>>>
>>> On Mon, Jul 13, 2009 at 13:30, Drew Tomlinson 
>>> >> d...@mykitchentable.net>> wrote:
>>>
>>>Jason Garrett wrote:
>>>
>>>>snip
>>>
>>>I see you tried the zpool import and export, but did you
>>>perform `mkdir /boot/zfs` directly before `zpool export tank
>>>&& zpool import tank` ?
>>>
>>>I just have to ask because I did not see that specified, and
>>>you mention not being able to find zpool.cache. /boot/zfs is
>>>where zpool.cache hides out.
>>>
>>>Yes I did.  However I figured out my problem.  I was chrooted into
>>>/dist and the zpool.cache was being written to /boot/zfs (as you
>>>mention).  But because of the chroot, when I checked /boot/zfs, I
>>>was *really* checking /dist/boot/zfs.  Thus my problem.  :)
>>>
>>>However I'm still having difficulty.  I suspect I don't have a
>>>/boot/loader that supports zfs filesystems as I just boot to the
>>>'OK" prompt.  An 'lsdev' only shows BIOS devices but I've seen
>>>posts on the Net that indicate I should have zfs devices listed
>>>there too if I have a proper /boot/loader.  I've used the one from
>>>both 7.2-RELEASE.iso and 8.0-BETA1.iso but no luck.  Do you know
>>>of any way I can confirm or deny my suspicion?
>>>
>>>
>>>
>>> I am in the same spot you are now. I started the process yesterday but
>>> had to quit because it got too late. Apparently the few who have written
>>> these guides have gotten it to work, but that still eludes me. I'll post
>>> back if I get it working or have any new developments.
>>>
>>
>> Well you're doing better than me.  I've been at this for about 10 days off
>> and on.  :)
>>
>> Cheers,
>>
>>
>> Drew
>>
>
> Ok, now a few days later and still frustrated. Basically I narrowed my
> install down to one drive, divided up with gpt. I used a few sections from
> http://wiki.freebsd.org/ZFSOnRootWithZFSboot - specifially the section on
> installing the sources from /dist/8.0-BETA1 as well as rebuilding the loader
> as this guide says.
>
> I actually got it to load the kernel, goes through that ok. As soon as it
> tries to mount the root filesystem, it hangs with the following messages.
> (Won't respond to the keyboard anymore)
>
> ---
>
> Trying to mount root from zfs:zroot
> ROOT MOUNT ERROR:
> If you have invalid mount options, reboot, and first try the following from
> the loader prompt:
>
> set vfs.root.mountfrom.options=rw (did this,no luck.. also
> switched to an /etc/fstab layout, still no go)
>
> and then remove the invalid mount options from /etc/fstab.
>
> Loader Variables:
> vfs.root.mountfrom=zfs:zroot
> vfs.root.mountfrom.options=rw,noatime (this is from the /etc/fstab attempt)
>
> --
>
> Then it describes some specifications on how to use the :.
>
> I just don't get how some are getting this working, yet it comes so hard
> for others.
>
> Drew, I hope you have had better luck than I. I may just give up until it
> is a viable solution.
>
>
>>
>> --
>> Be a Great Magician!
>> Visit The Alchemist's Warehouse
>>
>> http://www.alchemistswarehouse.com
>>
>>
>
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Re: Install from a USB Pen

[Fbsd1]

Randi Harper wrote:

On 7/14/09, Fbsd1  wrote:

What are the instructions for using this 8.0 memstick.img?
What raw size memstick is needed?
Is the 8.0 memstick.img the same content as the cd1 disk?


Sigh. Reply-to-all fail. Resending.

It's all in the email about the 8.0 BETA(s). Use dd, a memstick that
 is of equal to or greater size than the memstick.img, and no, it's
 different from disc1. It currently lacks packages, but it does include
 livefs.

 -- randi


The email about 8.0 BETA(s) was not posted to the questions list that is 
why I did not see it.


This is what I tried

 Plugging in the stick auto generated these messages

# /root >umass0: 2.00/2.00, addr  2> on uhub1

da0 at umass-sim0 bus 0 target 0 lun 0
da0: < USB Flash Memory 6.50> Removable Direct Access SCSI-0 device
da0: 1.000MB/s transfers
da0: 1905MB (3903487 512 byte sectors: 255H 63S/T 242C)
GEOM_LABEL: Label for provider da0s1 is msdosfs/ço¤¿òÚktñ

 I have to hit enter key to get prompt
 of=da0  or of=da0s1 resulted in same thing, no img on stick

# /usr >dd if=8.0-BETA1-i386-memstick.img of=da0 bs=10240 conv=sync
57412+0 records in
57412+0 records out
587898880 bytes transferred in 192.035793 secs (3061403 bytes/sec)

Can not mount with (mount /dev/da0s1 /mnt)
But (mount_msdosfs /dev/da0s1 /mnt) does work but
stick still contains the original data.
Has not been overwritten by the 8.0-BETA1-i386-memstick.img

What is the problem here?



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Re: 5000' ethernet?

[Olivier Nicole]

Hi,

A general reply to many suggestions.

> So the time it takes for the smallest Ethernet frame to get from the two 
> farthest nodes will determine a window in which the two most distant nodes 
> upon attempting a transmit can tell that a collision occurred and 
> retransmit.

In a case of point-to-point UTP cable, there would be no collision
though. But acknowledgement packets may take too long to reach the
sending end, leading it to beleive the packet was lost and needs
retransmission. I cannot rememebr if Ethernet have ACK packets.

> The max distance for UTP is 328 ft. Divide the 5,000 by 328 and it will tell 
> you how many bridges, hubs, or switches you will need to regenerate the 
> signal. You may find devices purporting to 'range extenders', but even these 
> will have distance limitations requiring more than one. Foofaraw.

That would make 14 hub/switches. I think I remember that the number of
hubs is limited to 4 in between each end of the connection. I am not
sure it is true also for switches.

> In any case, have boxes of cat5 on order so as to find out myself.

You would need 5 boxes, the connections between each run of cable
could cause too many loss, even if the timing was not an issue.

As suggested by others, I would go for wireless ad it is the easiers
to install if you have a line of sight. A complete wireless solution
would range as little as $1500 including a couple of parabolic
antennas with 18-20dB gain and the access point including power over
Ethernet to power the antenna.

Another solution, if you really don't need that much bandwidth, is to
request an ADSL connection at each location and establish some kind of
tunnel in-between the two boxes. For you this solution is zero cable
installation, and very light configuration (ethernet over IP tunneling
would allow you to extend your Ethernet layer 2 network across both
end of the link). Of course you will be limited to the downlink
bandwidth of your ADSL connection: if you get 20Mbps ADSL (that is
20Mpbs uplink/10Mbps down), you would have 10Mbps link. This solution
should be quite cheap depending on your contract with your telephone
company.

As suggested before you could consider fiber optic, you could order
a 2000 meters roll of underground outdoor fiber, with pig tail
installed at each end. For a temporary use, you should not need any
special precaution for installation: these fibers are usually shielded
to support a truck to running on it... Or you can get the type of
fiber designed for aerial usage, 8 shapped cable, including a
suspension cable, and run it from tree to tree; but it's much much
more installtion work, the cable tend to be heaviy...

And you could get a couple of media converters (UTP to fiber) for
$1000. Don't be afraid by the cost of fiber optic, most of the cost is
labour to bury the fiber, it is not the cost of the cable
itself. AFAIR, you can run 100Mbps on 2 kilometers of multimode fiber
(multimode is cheaper I beleive).

My choice would be:

If I have the line of sight and the budget, I would go wireless,
second choice being ADSL and third fiber optic.

Bests,

Olivier
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network appliance question

[Jeff Hamann]

I would like to take a ton of apps I've compiled from source, plus  
gobs of my own source, build a "distro" of that super solid freebsd I  
love,  and hermetically seal it up in a box that can be plugged into a  
network hub, so that users don't have to use anything but a web  
browser, sftp, or ssh to access the contents. My questions are as  
follows:


1) Is this possible?

2) If so, is there a network appliance "starter kit" I can play with  
first to prove the concept, and


3) If so, where? I haven't been too successful searching for "network  
appliance building for dummies"


Thanks,
Jeff.

Jeff Hamann, PhD
PO Box 1421
Corvallis, Oregon 97339-1421
541-754-2457
jeff.hamann[at]forestinformatics[dot]com
http://www.forestinformatics.com




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Re: Install from a USB Pen

[Randi Harper]

On Wed, Jul 15, 2009 at 6:50 PM, Fbsd1  wrote:

> Randi Harper wrote:
>
>> On 7/14/09, Fbsd1  wrote:
>>
>>> What are the instructions for using this 8.0 memstick.img?
>>> What raw size memstick is needed?
>>> Is the 8.0 memstick.img the same content as the cd1 disk?
>>>
>>
>> Sigh. Reply-to-all fail. Resending.
>>
>> It's all in the email about the 8.0 BETA(s). Use dd, a memstick that
>>  is of equal to or greater size than the memstick.img, and no, it's
>>  different from disc1. It currently lacks packages, but it does include
>>  livefs.
>>
>>  -- randi
>>
>>
>>  The email about 8.0 BETA(s) was not posted to the questions list that is
> why I did not see it.
>
> This is what I tried
>
>  Plugging in the stick auto generated these messages
>
> # /root >umass0:  addr  2> on uhub1
> da0 at umass-sim0 bus 0 target 0 lun 0
> da0: < USB Flash Memory 6.50> Removable Direct Access SCSI-0 device
> da0: 1.000MB/s transfers
> da0: 1905MB (3903487 512 byte sectors: 255H 63S/T 242C)
> GEOM_LABEL: Label for provider da0s1 is msdosfs/ço¤żňÚktń
>
>  I have to hit enter key to get prompt
>  of=da0  or of=da0s1 resulted in same thing, no img on stick
>
> # /usr >dd if=8.0-BETA1-i386-memstick.img of=da0 bs=10240 conv=sync
> 57412+0 records in
> 57412+0 records out
> 587898880 bytes transferred in 192.035793 secs (3061403 bytes/sec)
>
> Can not mount with (mount /dev/da0s1 /mnt)
> But (mount_msdosfs /dev/da0s1 /mnt) does work but
> stick still contains the original data.
> Has not been overwritten by the 8.0-BETA1-i386-memstick.img
>
> What is the problem here?
>

You're writing to a file called da0 inside /usr instead of /dev/da0.

-- randi
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Re: Server screwed up (/lib/libc.so.7: Undefined symbol "_nsdispatch")

[Victor Starenky]

I've finally managed to get all sources to the machine via mounted SMB
drive that still works. (tar errors out).
But alas, "make all install" immediately throws the very same error
that started this topic:
/libexec/ld-elf.so.1: /lib/libc.so.7: Undefined symbol "_nsdispatch"

Very few commands actually work: cp, ls, cat etc.
So I'm afraid my only option is to try rescue from cd...

Thanks for your help!
Victor

On Tue, Jul 14, 2009 at 3:34 PM, Sergio de Almeida
Lenzi wrote:
> Em Ter, 2009-07-14 às 10:00 -0400, Victor Starenky escreveu:
> ===OK... 
> you can try this script...
> it suposes that you have ALL the /usr/src  and the GENERIC KERNEL...
> in a slow machine, it is about 4 hours (Pentium 2, 256mb memory, 10Gb
> disk)
> FreeBSD 7.0 =>  FreeBSD 7.2
> save the script in the root directory say: updatebsd
> than with all the /usr/src (you can get it from the CD).
>
> sh updatebsd
> if it finds a small mistake it will stop.
> after building the OS, check if everything is ok, and reboot.
> this script will install the GENERIC KERNEL, so if you have your
> own kernel,   edit the last lines of the code to make your needs
> ==
> DEPEND=depend
> cd /usr/src
> set -e
> (cd share/mk;make all install || exit 1)
> make includes
> for i in etc share lib libexec secure/lib secure
> do
> (cd $i;make ${DEPEND} all install || exit 1)
> sync
> done
> for i in sbin bin usr.sbin usr.bin
> do
> (cd $i;make ${DEPEND} all install || exit 1)
> sync
> done
> cd /sys/`uname -m`/conf
> config GENERIC
> cd ../compile/GENERIC
> make ${DEPEND} all install
>
>
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Re: 5000' ethernet?

[David Kelly]

On Jul 15, 2009, at 9:25 PM, Olivier Nicole wrote:

The max distance for UTP is 328 ft. Divide the 5,000 by 328 and it  
will tell
you how many bridges, hubs, or switches you will need to  
regenerate the
signal. You may find devices purporting to 'range extenders', but  
even these

will have distance limitations requiring more than one. Foofaraw.


That would make 14 hub/switches. I think I remember that the number of
hubs is limited to 4 in between each end of the connection. I am not
sure it is true also for switches.


Hubs are simple analog repeaters. Switches are regenerative and  
buffered as the packet doesn't get resent until after the needed port  
is available.



In any case, have boxes of cat5 on order so as to find out myself.


You would need 5 boxes, the connections between each run of cable
could cause too many loss, even if the timing was not an issue.


Wire connections are not all that lossy.

Meanwhile cat5 is useful for other things after this project is over.


As suggested by others, I would go for wireless ad it is the easiers
to install if you have a line of sight.


Is my fault for not stating initially that the customer has ruled out  
any wireless option. Originally we were going to run a modest 50k bit/ 
sec wireless link.



Another solution, if you really don't need that much bandwidth, is to
request an ADSL connection at each location and establish some kind of
tunnel in-between the two boxes.


There are no phone lines at this location.


As suggested before you could consider fiber optic, you could order
a 2000 meters roll of underground outdoor fiber, with pig tail
installed at each end. For a temporary use, you should not need any
special precaution for installation: these fibers are usually shielded
to support a truck to running on it... Or you can get the type of
fiber designed for aerial usage, 8 shapped cable, including a
suspension cable, and run it from tree to tree; but it's much much
more installtion work, the cable tend to be heaviy...


Sources?


And you could get a couple of media converters (UTP to fiber) for
$1000.


Transceivers are easy to find. Matching cable has not been easy to find.


Don't be afraid by the cost of fiber optic, most of the cost is
labour to bury the fiber, it is not the cost of the cable
itself.


Not going to bury it. Is temporary for less than a week.

--
David Kelly N4HHE, dke...@hiwaay.net

Whom computers would destroy, they must first drive mad.



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Re: 5000' ethernet?

[David Kelly]

On Jul 15, 2009, at 5:41 PM, Michael Powell wrote:


David Kelly wrote:

Not directly FreeBSD related, but how much of a chance is there  
that two

machines could communicate directly over 5,000 feet of cat5 with no
special hardware?

IIRC the classic ethernet problem limiting the distance between the
farthest points on a network had to do with timing and collisions. If
these two NICs are configured full duplex then it seems one would  
have

no idea how far away the other was due to timing issues.


No. Ethernet uses a protocol design called Carrier Sense Multiple  
Access
with Collision Detect, or CSMA/CD. The maximum lengths are indeed  
related to
timing and the timing is a direct result of the propagation delay  
in the
medium. The velocity factor will be some percentage of the speed of  
light.


Since when does one have CSMA/CD when configured as full duplex? All  
full duplex ethernet connections are point to point, machine to  
machine, or machine to switch. There is no multiple access on full  
duplex. No chance of collision.


So I'm thinking at 5,000' the problem is one of echo cancelation and  
signal loss, not one of ethernet protocol.


--
David Kelly N4HHE, dke...@hiwaay.net

Whom computers would destroy, they must first drive mad.



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Re: 5000' ethernet?

[Olivier Nicole]

David,

> > You would need 5 boxes, the connections between each run of cable
> > could cause too many loss, even if the timing was not an issue.
> Wire connections are not all that lossy.

You would be surprised by the impedance missmatch tests made by
cabling companies...

> Meanwhile cat5 is useful for other things after this project is over.

And as you already ordered the cable, it is worth testing anyway.

> Is my fault for not stating initially that the customer has ruled out  
> any wireless option. Originally we were going to run a modest 50k bit/ 
> sec wireless link.

OK, but you could have 10 Mbps, not only 50 Kbps, if the bandwidth is
a limitation.

> > As suggested before you could consider fiber optic, you could order
> > a 2000 meters roll of underground outdoor fiber, with pig tail
> > installed at each end. For a temporary use, you should not need any
> > special precaution for installation: these fibers are usually shielded
> > to support a truck to running on it... Or you can get the type of
> > fiber designed for aerial usage, 8 shapped cable, including a
> > suspension cable, and run it from tree to tree; but it's much much
> > more installtion work, the cable tend to be heaviy...
> Sources?

For the information? Holding a booth at an exhibition next to Krone
booth, we got to talk a lot.

For cable? I am afraid that, being in Thailand, my sources would
charge you a very high transportation cost :)

Krone is one brand, they manufacture mostly UTP cable and connectors,
but I think they are associated with Belink for the fiber optic cable.

I would try to contact a network installer in my area, they should be
able to source fiber optic cable for you.

Bests,

olivier
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Re: network appliance question

[Adam Vande More]

On Wed, Jul 15, 2009 at 9:41 PM, Jeff Hamann <
jeff.ham...@forestinformatics.com> wrote:

> I would like to take a ton of apps I've compiled from source, plus gobs of
> my own source, build a "distro" of that super solid freebsd I love,  and
> hermetically seal it up in a box that can be plugged into a network hub, so
> that users don't have to use anything but a web browser, sftp, or ssh to
> access the contents. My questions are as follows:
>
> 1) Is this possible?
>
> 2) If so, is there a network appliance "starter kit" I can play with first
> to prove the concept, and
>
> 3) If so, where? I haven't been too successful searching for "network
> appliance building for dummies"
>
> Thanks,
> Jeff.
>
> Jeff Hamann, PhD
> PO Box 1421
> Corvallis, Oregon 97339-1421
> 541-754-2457
> jeff.hamann[at]forestinformatics[dot]com
> http://www.forestinformatics.com
>
> There may be a far better method, but perhaps using
/usr/ports/sysutils/freesbie to build an ISO then using it to image a drive
would work for you.

Or there is this sort of approach too, obviously need to be adapted/slimmed
to your embedded enviro as well.  There is an old FreeBSD embedded cookbook
to, I'd guess much of it still applies.

http://www.gsoft.com.au/~doconnor/FreeBSD-release-2.html

-- 
Adam Vande More
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Re: network appliance question[re post]

[stopeme]

Jeff Hamann wrote:
I would like to take a ton of apps I've compiled from source, plus 
gobs of my own source, build a "distro" of that super solid freebsd I 
love,  and hermetically seal it up in a box that can be plugged into a 
network hub, so that users don't have to use anything but a web 
browser, sftp, or ssh to access the contents. My questions are as 
follows:


1) Is this possible?

2) If so, is there a network appliance "starter kit" I can play with 
first to prove the concept, and


3) If so, where? I haven't been too successful searching for "network 
appliance building for dummies"


Thanks,
Jeff.

Jeff Hamann, PhD
PO Box 1421
Corvallis, Oregon 97339-1421
541-754-2457
jeff.hamann[at]forestinformatics[dot]com
http://www.forestinformatics.com




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another options is nanoBSD
http://www.freebsd.org/doc/en_US.ISO8859-1/articles/nanobsd/
and iirc there is frenzy livecd building scripts in ports
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Re: 5000' ethernet?

[Michael Powell]

David Kelly wrote:

> 
> Since when does one have CSMA/CD when configured as full duplex? All
> full duplex ethernet connections are point to point, machine to
> machine, or machine to switch. There is no multiple access on full
> duplex. No chance of collision.

You are running Ethernet, right? CSMA/CD is part of the Ethernet framing 
protocol. It is present in the protocol independent of simplex/duplex, etc. 
As such the timing windows contain non-infinite discreet value ranges. It is 
integral to Ethernet and does not get 'switched off' or disappear just 
because a link is full-duplex. 
 
> So I'm thinking at 5,000' the problem is one of echo cancelation and
> signal loss, not one of ethernet protocol.

These other electrical parameters are indeed important. Let's not forget 
near-end crosstalk, et al. If you have an oscilloscope and decide to try 
this, take a look at what's called the "eye pattern". Then compare it with a 
circuit that is within correct functional parameters. You will immediately 
see a difference, and these are electrical effects of the medium. Excessive 
phase jitter and the NICs on either end will be unable to decode anything. 
As far as they are concerned there is only random 'noise' present.

These physical parameters drive the limitations designed into the Ethernet 
protocol. There are maximum distances in fiber just as there are in copper. 
If we could simply ignore these things and do whatever we want why would 
they need exist in the first place? 

They exist because the propagation speed in the medium is not instantaneous. 
This makes the problem time. The furthest apart two nodes can be located is 
the time it takes for the smallest Ethernet packet to get from one end to 
the other. When a NIC transceiver is in the process of transmitting a packet 
it is also listening at the same time and calculating a CRC. It knows when a 
collision has occurred when the CRC does not match on both TX and RX. If 
they are too far apart in time, and both NICs key up at the same instant 
neither will ever know the collision has not yet occurred. Both will assume 
no collision has occurred and queue up the next packet, and so on and so 
forth. The problem is time, and time is directly related to the propagation 
speed of the medium. 

This relationship to time is present in the Ethernet protocol. The 
misconception present is that "with full duplex there is no chance of 
collision" meaning that CSMA/CD is somehow magically turned off or excluded. 
It is not. But none of this will matter. The electrical parameters of 5,000 
feet of UTP will ensure that Ethernet doesn't even enter the picture as 
neither NIC on either end will ever be able to identify or decode any 
Ethernet frames. 
 

> David Kelly N4HHE, dke...@hiwaay.net
> 
> Whom computers would destroy, they must first drive mad.
 
Ain't that the truth? Hi Hi Hi. Just trying to hint at not wasting your time 
with something that won't work. By the way - I'm KD3FO 

73

-Mike


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Re: network appliance question

[Adam Vande More]

On Thu, Jul 16, 2009 at 12:05 AM, Adam Vande More wrote:

> On Wed, Jul 15, 2009 at 9:41 PM, Jeff Hamann <
> jeff.ham...@forestinformatics.com> wrote:
>
>> I would like to take a ton of apps I've compiled from source, plus gobs of
>> my own source, build a "distro" of that super solid freebsd I love,  and
>> hermetically seal it up in a box that can be plugged into a network hub, so
>> that users don't have to use anything but a web browser, sftp, or ssh to
>> access the contents. My questions are as follows:
>>
>> 1) Is this possible?
>>
>> 2) If so, is there a network appliance "starter kit" I can play with first
>> to prove the concept, and
>>
>> 3) If so, where? I haven't been too successful searching for "network
>> appliance building for dummies"
>>
>> Thanks,
>> Jeff.
>>
>> Jeff Hamann, PhD
>> PO Box 1421
>> Corvallis, Oregon 97339-1421
>> 541-754-2457
>> jeff.hamann[at]forestinformatics[dot]com
>> http://www.forestinformatics.com
>>
>> There may be a far better method, but perhaps using
> /usr/ports/sysutils/freesbie to build an ISO then using it to image a drive
> would work for you.
>
> Or there is this sort of approach too, obviously need to be adapted/slimmed
> to your embedded enviro as well.  There is an old FreeBSD embedded cookbook
> to, I'd guess much of it still applies.
>
> http://www.gsoft.com.au/~doconnor/FreeBSD-release-2.html
>
> --
> Adam Vande More
>
Looking into this a little more and this page may also interest you.

http://www.freebsd.org/doc/en/articles/releng/release-build.html

/usr/src/release/ contains some interesting items.


-- 
Adam Vande More
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device "urtw" is unknown

[Rob Farmer]

Hi,

I am trying to build a custom kernel with the urtw device on 8.0 beta
1 amd64. According to the man page, I should add device urtw to my
config (just Generic plus this) and it should work. But, I get:

config: Error: device "urtw" is unknown

What am I missing?
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