Re: [SLUG] Oracle over NFS

2003-09-08 Thread Matt M
At 11:13 8/09/2003, Tony Green wrote:
I'm looking at setting up a new oracle install which, ideally, would
access it's data over a SAN.  That's not a problem, apart from the
expense.
Does anyone have experience in running oracle over NFS?  I'm thinking of
a dedicated gigabit link betwixt client and server.
From a physical link point of view, this is gonna be pretty damned slow. 
The figures I hear are that gig cards have a typical throughput of 
400Mbit/s, at the physical end, which, when you add in the vagaries of TCP, 
IP, and NFS, doesn't leave you with a whole heap of bandwidth. Someone 
correct me if I'm wrong about these figures.

Also, from what I've read, TCP/IP is a pretty bad medium for file transfer, 
as it's more optimised towards failure-recovery on poor links than raw 
transfer performance (Like FC).

In terms of performance, you might see ~35MB/s peak, at an educated guess, 
which is a joke compared to even an older (1Gb) model SAN (~100MB/s (With 
the right disk drives/RAID config) -- I understand you should see very 
close to the theoretical peak performance, given the reliability of the 
medium and the optimisations of the FC protocol). 35MB/s is actually less 
than a good high-performance IDE disk should give you nowadays.

This is not to consider latency, on which I have no data, but may well be 
worth considering.

Assuming that the goal you have in mind is fail-over, and cost is a big 
issue, I've found that simple hot-swap drives (or arrays) are the 
cheapest/easiest fix. With two identical machines and one array, if a 
machine falls over, then you just flip the cable up to another / swap the 
drives around. This satisfies most uptime needs, and avoids the bleeding 
edge cost of 'enterprise' solutions (with (semi-) automated fail over) like 
SANs.

In short, look elsewhere. The performance will be crap from a hardware 
point of view, not just a software one (Even if the gig link performs at 
max, 100MB/s, this is not much compared to the throughput of a good RAID 
array).

Cheers,

Matt



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Re: [SLUG] Oracle over NFS

2003-09-08 Thread Tony Green
I've done some more digging and spoken with a few people.  I'm surprised
to see that Oracle themselves support storing data on an NFS system ?!?!

They do specify that you use netapp filers, but other than that it's
just NFS.

I'm not too worried about the overall bandwidth at this time, I've got a
lot of 'proof of concept' testing to see if it'll work in practice, but
it looks good so far.

Thanks for all the input.

greeno
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RE: [SLUG] Mail redirecting

2003-09-08 Thread Jared Pritchard

 - Maha!   thanks bundles.   I knew it would be simple  ;)


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Re: [Fwd: RE: [SLUG] Oracle over NFS]

2003-09-08 Thread Stuart Guthrie
Hi Tony

I thought Oracle would use some sort of TCP/IP ports to communicate with
a client end application. NFS sounds wrong unless you want to access the
whole DB Binary file and its other bits (BI journals etc).

I'm not into Oracle but most RDBMS work like this:

Client Software local or remote |-TCP/IP---| RDBMS Server
Process(listening on Port X)

This is true of Progress RDBMS, Hypersonic, Postgresql (in TCP/IP mode).

HTH


Stu

On Mon, 2003-09-08 at 12:05, Tony Green wrote:
 Passing onto the list (thanks Jill)
 
 -Forwarded Message-
  From: Tony Green [EMAIL PROTECTED]
  To: Rowling, Jill [EMAIL PROTECTED]
  Subject: RE: [SLUG] Oracle over NFS
  Date: Mon, 08 Sep 2003 11:45:43 +1000
  
  On Mon, 2003-09-08 at 11:41, Rowling, Jill wrote:
   The only problem I can think of is NFS timeouts clashing with any Oracle
   timeouts.
   If the database is not in use for some time, and NFS does its timeout thing
   (typ 30 seconds), I would read up to see if Oracle has a shorter timeout
   before it complains that the database is unavailable.
   
  
  Thats the 'gotcha' that I'd thought of.
  
   Also one of the NASs that I looked at had this terrible NFS setup where it
   exported everything if you wanted NFS at all. Very trusting and not secure
   (a Win2k box with lots of Win2k things missing from it).
   
   A Linux / BSD / Solaris NAS would be better than the off-the-shelf NASs
   that run Windows.
  
  Yeah, I'm looking at doing a NAS with just a big box and a bunch of RAID
  disks rather than a black box one.
  
   Why don't you just plug in an extra controller and add a disk array? You
   would get better performance.
   NFS is better suited to individual applications to share data or home
   directories amongst servers.
  
  The shared aspect is the key.  2 boxes both able to access the data
  (oracle and application failover), otherwise I'd disk array it.
  
  Thanks for the insights :-)
  
  TG
 -- 
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Re: [SLUG] Oracle over NFS

2003-09-08 Thread r.polanskis
On Mon, 8 Sep 2003, Tony Green wrote:

 I've done some more digging and spoken with a few people.  I'm surprised
 to see that Oracle themselves support storing data on an NFS system ?!?!

 They do specify that you use netapp filers, but other than that it's
 just NFS.

 I'm not too worried about the overall bandwidth at this time, I've got a
 lot of 'proof of concept' testing to see if it'll work in practice, but
 it looks good so far.

It can be done and it does work.  You really do need something like
gigabit ethernet or better.  You also have to watch your UID mappings.
As well, you should make sure your host database is allocated lots
of disk spindles and have your control and redo files on separate
disks if at all possible.


rachel

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Re: [Fwd: RE: [SLUG] Oracle over NFS]

2003-09-08 Thread Jeff Waugh
quote who=Stuart Guthrie

 I thought Oracle would use some sort of TCP/IP ports to communicate with
 a client end application. NFS sounds wrong unless you want to access the
 whole DB Binary file and its other bits (BI journals etc).
 
 I'm not into Oracle but most RDBMS work like this:
 
 Client Software local or remote |-TCP/IP---| RDBMS Server
 Process(listening on Port X)

   ^ but when you want
   redundancy over here,
   it can get ugly and
   complicated. :-)

- Jeff

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Re: [SLUG] Mail redirecting -

2003-09-08 Thread Ken Foskey
On Tue, 2003-09-09 at 05:12, Jared Pritchard wrote:
 hey ppl -
 our server redirects any email sent to '[EMAIL PROTECTED]' to my boss, but
 he wants it to come to me from now on, because the only thing that would
 ever come from root are basically any errors returned by cron etc. and I am
 the one that needs to know of those :)  hehehe

One more suggestion is to check for a .forward file in the /root
directory (assuming the home directory of root is /root not / or
/home/root)

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Thanks
KenF
OpenOffice.org developer

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[SLUG] radius script

2003-09-08 Thread Adam Hewitt
Hi All,

I have a file which has lines in it like the following:

username1,password1,7200,10800
username2,password2,7200,10800
username3,password3,10800,10800

etc...and I need to turn the file into this:

username1   Password = password1
Idle-Timeout = 7200,
Session-Timeout = 10800,
Failover = 1

Would one of you kind sed guru's please give me some advise on how I
could go about accomplishing this feat? This file is *long* and I refuse
to have to sit there for hours cutting and pasting because of my
scripting ignorance...and this needs to be done ASAP :(

Maybe I should get my arse into gear and start learning to program...

Cheers,

Adam.

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Re: [SLUG] airsnort

2003-09-08 Thread Jamie Wilkinson
This one time, at band camp, Adam Hewitt wrote:
Hi All,

Just wondering if anyone has managed to get airsnort working with their
apple airport card? There is a link from the airsnort homepage, however
it seems to be broken.

The airport drvier in 2.4.22-ben2 and lower doesn't have scan support, so
you can't hunt for APs and other useful things, which makes airsnort and
kismet fairly useless.

I mailed David Gibson a short while ago and he did say he was aware of
patches to do this, and he was hoping to have a look at applying the code
soon.

If you hunt around the debian-powerpc list, you'll find various patches for
various versions of the orinoco/airport drivers, and you'll have various
amounts of luck applying any of them.  I never got any of them to work.

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[SLUG] Linux and windows

2003-09-08 Thread Sayth



Hello

I would like to run windows from within linux and 
have heard about programs such as Win4LIn and Vmware. I was going to use 
mandrake 9.0 as this is going to be my second attempt to use linux since trying 
red hat a year ago.

Is mandrake 9 and win4lin a good option, the only 
thing I need windows for is my girlfriends MSn messenger, Shogun Total war and 
MS Excel.

I am a novice any hints or tips 
welcome

cheers

Sayth
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[SLUG] music composition

2003-09-08 Thread Russell Davie
Hi all
I'm looking for music composition software that runs in linux
any thoughts on this much apreaciated
so far found UltiMusE-LX on freshmeat
regards
Russell

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Re: [SLUG] radius script

2003-09-08 Thread Peter Hardy
On Mon, 2003-09-08 at 22:29, Adam Hewitt wrote:
 username1,password1,7200,10800
 username2,password2,7200,10800
 username3,password3,10800,10800
 
 etc...and I need to turn the file into this:
 
 username1 Password = password1
   Idle-Timeout = 7200,
   Session-Timeout = 10800,
   Failover = 1
 
 Would one of you kind sed guru's please give me some advise on how I
 could go about accomplishing this feat? This file is *long* and I refuse
 to have to sit there for hours cutting and pasting because of my
 scripting ignorance...and this needs to be done ASAP :(

I'd have thought awk would be better for this than sed.  And awk is one
of those things that only looks hard until you've tried it. :-) 
Actually, like most things, the hardest part seems to be figuring out
how to escape stuff from the shell properly.

Also like sed, it has a very thorough man page, with lots of
easy-to-follow examples.

Something like:
$ cat original-file | awk -F, '{ print $1\tPassword = \$2\
print \tIdle-Timeout = $3,
print \tSession-Timeout = $4,
print \tFailover = 1 }'  new-file

should do the trick, but I haven't really tested it.  Hopefully it's
clear enough to understand and make work properly. :-)

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Re: [SLUG] Postfix, SMTP, ipchains firwall or postfix.conf ?

2003-09-08 Thread Voytek Eymont
** Reply to note from Paul Forrester [EMAIL PROTECTED] Mon, 08 Sep 2003 12:59:53 
+1000


 Try going to: 
 /etc/postfix/main.cf 
 Comment out: 
 inet_interfaces = localhost  
 and uncomment 
 inet_interfaces = all

Paul,

thanks for pointing that out, yes, I did have it wrong, though, it didn't
help.

HOWEVER, as I've run out of ideas, I ended re-installing Postfix, and, guess
what: I can now telnet to it from another host.

now i can start trying to config it... hope you'll lend a hand again !



Voytek Eymont
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Re: [SLUG] radius script

2003-09-08 Thread Stuart Cooper
divide the circumference by 6.283

Stuart.
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Re: [SLUG] radius script

2003-09-08 Thread Rick Welykochy
On Mon, 8 Sep 2003, Adam Hewitt wrote:

 I have a file which has lines in it like the following:
 
 username1,password1,7200,10800
 username2,password2,7200,10800
 username3,password3,10800,10800
 
 etc...and I need to turn the file into this:
 
 username1 Password = password1
   Idle-Timeout = 7200,
   Session-Timeout = 10800,
   Failover = 1

Heh .. I've often had to write something that does the reverse, i.e.
Radius format == CSV. 

Here is a perl one-liner that reads the user records from STDIN:

perl -n -e 'chomp; @a=split/,/; print qq{$a[0]   Password = $a[1]\n
Idle-Timeout = $a[2],\nSession-Timeout = $a[3],\nFailover = 1\n\n}'

((not a recommended programming practice!))

cheers
rickw


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Every program attempts to expand until it can read mail. Those programs
 which cannot so expand are replaced by ones which can.
 -- Jamie Zawinski, the Law of Software Envelopment

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Re: [SLUG] music composition

2003-09-08 Thread guru
On Mon, 8 Sep 2003, Russell Davie wrote:

G'day, tried Rosegarden and Audacity yet? cheers

http://freshmeat.net/projects/rosegarden/

 Hi all
 I'm looking for music composition software that runs in linux
 any thoughts on this much apreaciated
 so far found UltiMusE-LX on freshmeat
 regards
 Russell


kind regards
Norm

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Re: [SLUG] Linux and windows

2003-09-08 Thread Peter Hardy
On Mon, 2003-09-08 at 22:53, Sayth wrote:
 Is mandrake 9 and win4lin a good option, the only thing I need windows
 for is my girlfriends MSn messenger, Shogun Total war and MS Excel.

I don't use Mandrake, but a lot of people on this list do, and recommend
it strongly, especially for new users.  Finding help shouldn't be a
problem. :-)

Depending on what you use MSN for, you might find one of the many Linux
clients suitable.  My personal favourite is gaim
(http://gaim.sourceforge.net/).  Otherwise Win4Lin should run it just
fine.

Win4Lin will run Excel without any problems.  Also worth looking at is
Crossover Office (http://codeweavers.com/products/office/), which will
probably run significantly faster than Win4Lin, and supports Excel.  And
again, I haven't had any problems opening Excel files in Linux
spreadsheet programs; gnumeric (http://gnumeric.org/) is very good, as
is OpenOffice (http://openoffice.org/) for a broader Office replacement.

I don't know if this is still true, but Win4Lin used to have problems
with DirectX, so Shogun is probably out of the question.  I'm not sure
if/how you'd be able to get it running in Linux.

Good luck,
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RE: [SLUG] anti-virus software for linux

2003-09-08 Thread Robert Tillsley

Sophos have linux mail server product. Must admit I've never used sophos on
linux, but in windows its pretty good and easy to manage.

Cheers

Rob T
 -Original Message-
 From: Del [mailto:[EMAIL PROTECTED]
 Sent: Saturday, 6 September 2003 11:26 AM
 To: [EMAIL PROTECTED]
 Subject: Re: [SLUG] anti-virus software for linux
 
 
 Jeff Waugh wrote:
  Free Software: clamav. Works surprisingly well, community 
 maintained, many
  people feel that it doesn't provide the response times to 
 new viruses that
  proprietary solutions do.
  
  Proprietary Software: NOD32. Fast, effective, and fairly 
 malleable. I'd
  recommend it.
 
 I've used NOD32 and Kaspersky (KAV) and found Kaspersky to be superior
 overall.
 
 Anyway, YMMV.  Web sites are here:
 
 http://www.nod32.com/
 
 http://www.kasperskylabs.com/
 
 The NOD32 software makes you pay for a per-user license to use it on
 a mail server.  The Kaspersky labs software is a single-server license
 for as many users as you want.
 
 -- 
 Del
 
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Re: [SLUG] Linux and windows

2003-09-08 Thread ron
redhat has msn messanger 

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Re: [SLUG] music composition

2003-09-08 Thread Denis Crowdy
Russell Davie wrote:

I'm looking for music composition software that runs in linux
any thoughts on this much apreaciated
so far found UltiMusE-LX on freshmeat
Noteedit seems good, although I have yet to test it out for anything 
useful beyond half an hour of fiddling.

http://tan.informatik.tu-chemnitz.de/~jan/noteedit/noteedit.html

http://linux-sound.org/ is a good place to start.

Denis

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Re: [SLUG] music composition

2003-09-08 Thread Broun, Bevan
For typesetting sheet music you can use lilypond - it makes the best
looking sheet music Ive seen from a computer.

BB

on Mon, Sep 08, 2003 at 11:16:40PM +1000, Russell Davie [EMAIL PROTECTED] wrote:
 Hi all
 I'm looking for music composition software that runs in linux
 any thoughts on this much apreaciated
 so far found UltiMusE-LX on freshmeat
 regards
 Russell

 
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Re: [SLUG] music composition

2003-09-08 Thread Denis Crowdy
Russell Davie wrote:

I'm looking for music composition software that runs in linux
any thoughts on this much apreaciated
so far found UltiMusE-LX on freshmeat
Noteedit seems good, although I have yet to test it out for anything 
useful beyond half an hour of fiddling.

http://tan.informatik.tu-chemnitz.de/~jan/noteedit/noteedit.html

http://linux-sound.org/ is a good place to start.

Denis

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Re: [SLUG] Linux and windows

2003-09-08 Thread Tony Green
On Tue, 2003-09-09 at 00:44, Peter Hardy wrote:
 On Mon, 2003-09-08 at 22:53, Sayth wrote:
  Is mandrake 9 and win4lin a good option, the only thing I need windows
  for is my girlfriends MSn messenger, Shogun Total war and MS Excel.
 Depending on what you use MSN for, you might find one of the many Linux
 clients suitable.  My personal favourite is gaim
 (http://gaim.sourceforge.net/).  Otherwise Win4Lin should run it just
 fine.

There may well be problems using MSN messenger on linux come October
15th.

Quoted from the gaim site 

MS has decided that everyone should upgrade to MSN version 5.0 or
higher. MSN v5 is the first to use their MSN Protocol v8, which is the
first to use SSL for login. Now, we know how to login over this. This is
not hard, and we will be supporting MSNP9, the latest version of the
protocol, soon.

However, upgrading to this does not guarantee us anything. Whereas
previously, Microsoft has let third party clients connect, they now
require a license for doing so. They still encourage clients to connect
to their network, so with any luck, we can work something out. If not,
people may find a way to connect anyway, but the legalities of this are
pretty obvious. Key words: Intellectual Property and DMCA.

http://gaim.sourceforge.net/msn.php
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[SLUG] how to re-install RH73 with minimum disruption

2003-09-08 Thread Voytek Eymont
I have been trying to set up a RH7.3 web/mail server.

Apache and MySQL worked with just minor config hickups (lack of php-mysql
support, that is apparently a well known problem with RH (according to a
readme))

Apache and MySQL are now in production, and, work well

but I have struck a number of 'strange' and unrelated problems, such as:

- changing user's passwd on command line crashes the passwd utility;
workaround: use Webmin; solution: unresolved

- unable to compile CourierIMAP, corrupt file in gcc; solution: reinstall
gcc

- unable to access Postfix's SMTP 25 externally; solution: reinstall
Postfix

this leads me to think that there is something seriously flawed with
this system, and unless I 'do something' soon, this server will bite my
backside at the time I least need it.

as I saw on the list, SLUG was searching for a topic for the next meeting,
so, I thought maybe I'll bring this machine as worthwile project ? ;)

seriously though:

I guess I should reinstall the operating system itself, at the very least,
and, the other stuff can be re-installed if and when needed.

thus I need some pointers and suggestions on re-installing

this is a RH73 with all relevant 'up2date' installed

do I boot from RH7.3 CD, select 'UPGRADE', DESELECT apps, following
completion run 'up2date' ?

OR ?

RH 'upgrade' preservers all /etc and /home, as far as I know?





Voytek Eymont
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Re: [SLUG] how to re-install RH73 with minimum disruption

2003-09-08 Thread Dave Airlie

 - unable to compile CourierIMAP, corrupt file in gcc; solution: reinstal
 gcc

when you say reeinstall do you mean using the original rpms? or from
source? I'd run memtest86 on it for a few hours...

Dave


 - unable to access Postfix's SMTP 25 externally; solution: reinstall
 Postfix

 this leads me to think that there is something seriously flawed with
 this system, and unless I 'do something' soon, this server will bite my
 backside at the time I least need it.

 as I saw on the list, SLUG was searching for a topic for the next meeting,
 so, I thought maybe I'll bring this machine as worthwile project ? ;)

 seriously though:

 I guess I should reinstall the operating system itself, at the very least,
 and, the other stuff can be re-installed if and when needed.

 thus I need some pointers and suggestions on re-installing

 this is a RH73 with all relevant 'up2date' installed

 do I boot from RH7.3 CD, select 'UPGRADE', DESELECT apps, following
 completion run 'up2date' ?

 OR ?

 RH 'upgrade' preservers all /etc and /home, as far as I know?





 Voytek Eymont


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http://www.skynet.ie/~airlied / [EMAIL PROTECTED]
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Re: [SLUG] how to re-install RH73 with minimum disruption

2003-09-08 Thread Voytek Eymont
** Reply to note from Dave Airlie [EMAIL PROTECTED] Tue, 9 Sep 2003 01:24:08 +0100 
(IST)


  - unable to compile CourierIMAP, corrupt file in gcc; solution: reinstal 
  gcc 

 when you say reeinstall do you mean using the original rpms? or from 
 source? I'd run memtest86 on it for a few hours...

Dave, 

as with regard to gcc: 

the proginal install was done form RH CDs, and, gcc was installed at system
install, as part of system install.

after I struck problem with 'corrupt file', I 'rpm removed' gcc and whatever
rpm indicated was a pre-req dependency; I then 'rpm installed' everyting I
remove in previous step in reverse order.

then, it 'just worked' (much to my surprise, though, I won;t admit to the
surprise part)



Voytek Eymont
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Re: [SLUG] radius script

2003-09-08 Thread Adam Hewitt
heh...Theres always got to be one cook who spoils the Pi

;o)

Adam

On Mon, 2003-09-08 at 22:08, Stuart Cooper wrote:
 divide the circumference by 6.283
 
 Stuart.

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Re: [SLUG] radius script

2003-09-08 Thread Matthew Palmer
On Tue, Sep 09, 2003 at 08:49:07AM +0800, Adam Hewitt wrote:
 heh...Theres always got to be one cook who spoils the Pi

I really think you're becoming irrational.

- Matt
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Re: [SLUG] music composition

2003-09-08 Thread Peter Chubb
 guru == guru  [EMAIL PROTECTED] writes:

guru On Mon, 8 Sep 2003, Russell Davie wrote:

guru G'day, tried Rosegarden and Audacity yet? cheers


 Hi all I'm looking for music composition software that runs in
 linux any thoughts on this much apreaciated so far found
 UltiMusE-LX on freshmeat regards Russell
 

I compose in my head... but use lilypond for notation.
  http://www.lilypond.org/
as it produces the best typesetting for music that I know of.
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[Fwd: Re: [SLUG] music composition]

2003-09-08 Thread Erich Schulz
 ---BeginMessage---
I compose in my head... but use lilypond for notation.
  http://www.lilypond.org/
as it produces the best typesetting for music that I know of.
I'll second that. Lilypond does a great job of typesetting music.

Cheers

Erich

---End Message---
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Re: [SLUG] music composition

2003-09-08 Thread Denis Crowdy
Peter Chubb wrote:

I compose in my head... but use lilypond for notation.
  http://www.lilypond.org/
as it produces the best typesetting for music that I know of.
There was a front end to this as well - denemo?  I gave up on all of the 
pre-processors (abc, pm-something) when the going got difficult with 
other needs (guitar TAB with obscure tunings or multiple voices on the 
same staff, for example) and went straight to MusixTeX.  Great output, 
but fiddly markup.  Hard to transcribe or jot down composition ideas in 
these formats too - that's where MIDI input and front ends seem to be of 
benefit.

Denis

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Re: [SLUG] Linux and windows

2003-09-08 Thread Scott Ragen
[EMAIL PROTECTED] wrote on 09-09-2003 09:01:54 AM:

 On Tue, 2003-09-09 at 00:44, Peter Hardy wrote:
  On Mon, 2003-09-08 at 22:53, Sayth wrote:
   Is mandrake 9 and win4lin a good option, the only thing I need 
windows
   for is my girlfriends MSn messenger, Shogun Total war and MS Excel.
  Depending on what you use MSN for, you might find one of the many 
Linux
  clients suitable.  My personal favourite is gaim
  (http://gaim.sourceforge.net/).  Otherwise Win4Lin should run it just
  fine.
 
 There may well be problems using MSN messenger on linux come October
 15th.
 
--snip--
 However, upgrading to this does not guarantee us anything. Whereas
 previously, Microsoft has let third party clients connect, they now
 require a license for doing so. They still encourage clients to connect
 to their network, so with any luck, we can work something out. If not,
 people may find a way to connect anyway, but the legalities of this are
 pretty obvious. Key words: Intellectual Property and DMCA.
 
I'm not a solicitor or anything, but isn't it a basic right to be able to 
reverse engineer a product as long as you do not infringe patents and such 
- with the idea to increase competition and reduce monopoly markets?


Cheers,

Scott

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Re: [SLUG] music composition

2003-09-08 Thread Michael Lake
Russell Davie wrote:
 Hi all
 I'm looking for music composition software that runs in linux
 any thoughts on this much apreaciated
 so far found UltiMusE-LX on freshmeat
 regards
 Russell

Lots of links on Music TeX here and examples...

http://icking-music-archive.org/software/indexmt6.html



-- 

Mike Lake
Caver, Linux enthusiast and interested in anything technical.



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[SLUG] Slug, Christina Aguilera's private video shoot! VgJhd3TQ5TuCr2XPziPyt0iT5NJctZrd

2003-09-08 Thread kov
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Re: [SLUG] Linux and windows

2003-09-08 Thread Jeff Waugh
quote who=Scott Ragen

 I'm not a solicitor or anything, but isn't it a basic right to be able to
 reverse engineer a product as long as you do not infringe patents and such
 - with the idea to increase competition and reduce monopoly markets?

It's not a basic right, but it is quite legal in Australia. At least so
far.

- Jeff

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The postmodern version is: If all you have is duct tape, everything
   starts to look like a duct. Right. When's the last time you used duct
   tape on a duct? - Larry Wall
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