straight forward

para controlar $$$ no palm

nada melhor do que algo que controle teus gastos... e
eh gratis:

http://www.pdagreen.com/software_detail.asp?id=8594

abracao

rene

=====
r
e
n
e rene@usina.com
5511 9127 2665
yahoo messenger: renedepaula

posted by rene @ 11:49  

loja da swatch: contrate um vendedor

r
e
n
e rene@usina.com
5511 9127 2665
yahoo messenger: renedepaula

posted by rene @ 13:06  

RSS no palm

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

20/1/2004, 06:43

meio caro, mas parece util: um rss aggregator pra palm

d=00DD8A3B-CF18-ADC1-AEAADC6D5C4BF499&prodid=52023>

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAzqPVO1BMLbAt3oEQKKIQCeJHDz12lGSU4Z5MyrjWGQSEHGWc8AmwWm
MUSrZSbbwWpXIi1+oq7A3YRH
=Y8Na
-----END PGP SIGNATURE-----

posted by rene @ 06:44  

retro games

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

20/1/2004, 06:40

falando em games antigos...

> Retro Gamer which has turned out to be an excellent buy at £5.99.
> It contains some quite interesting content such as adverts for
> computers from yesteryear including a Quantum 2000 PC with 64k RAM,
> 160x75 pixel graphics and 2.4MB of disk storage all for only £2250!
> and some detailed information on the companies who were involved
> with early computer gaming.
>
> The best part is the CD that comes with it which contains 200 PC
> Retro Video Games including Scramble, Space Invaders and various
> versions of Breakout. All in all very un-PDA related but a superb
> purchase

http://www.livepublishing.co.uk/content/retro.shtml

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAzppFO1BMLbAt3oEQKCHQCfSa39fekYJPD1Dcv3vccCi+qhVbYAn2gy
ooATuitNNHbWV2IMUKNfX3kK
=mCN4
-----END PGP SIGNATURE-----

posted by rene @ 06:41  

roda & avisa: de volta no ar

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


19/1/2004, 19:13

depois de semanas de silencio, voltei a publicar um audiopost no
www.usina.com/rodaeavisa :) o tema eh o medo que eh perder teu
patrimonio digital inteiro, e ficar um homeless no digimundo. espero
que vcs gostem

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP SDK 3.0.3
Comment: ""

iQA/AwUBQAxI1VO1BMLbAt3oEQIJwwCfRp2Ci5xlpXO2N/f79v3Fwx6Dff8AoNBL
MiR+saPtUcPjJ/3ZbrKrguiU
=OfGg
-----END PGP SIGNATURE-----

posted by rene @ 19:15  

mapa do universo: nao saia de casa sem ele

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


19/1/2004, 08:01

cientistas prepararam um mapa ilustrado do universo visto da terra.
saiu no estadao, e o mapa tah aqui:

http://www.arxiv.org/PS_cache/astro-ph/pdf/0310/0310571.pdf

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP SDK 3.0.3
Comment: ""

iQA/AwUBQAurd1O1BMLbAt3oEQLziQCfaqz/MP16CEaWvlpT70U6T2j53XoAoPVi
aTr2eHKKuLob6AGRLs9KMN+S
=IhJI
-----END PGP SIGNATURE-----

posted by rene @ 08:04  

video streaming no celular

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


19/1/2004, 06:34

opa, vejam esse monstrinho da nokia:

Nokia has unveiled the Nokia 6620 which is "the first of its kind
targeted for the Americas market amd supporting new high-speed EDGE
networks. The Nokia 6620 imaging phone employs a 65,536 colour TFT
screen for viewing still images and video clips captured by the
integrated VGA camera and real-time video streaming over the EDGE
network using the built-in RealOne mobile player. While taking
pictures, users have the ability to use the 2x digital zoom and a
self-timer feature, while the extended memory enables the saving of
hundreds or even thousands of images. The Symbian OS-based Series 60
platform allows for the creation of richer applications including
business and productivity tools such as mobile e-mail, over-the air
synchronization of PIM data, a fully integrated Internet browser (HTML
4.01, XHTML/CSS and WML). The smartphone also comes with a wide
selection of third-party applications, just like its European sibling,
the Nokia 6600. The Nokia 6620 imaging phone (GSM/GPRS/EDGE
850/1900/1800 MHz) is expected to be available during the second
quarter of 2004."

http://www.infosyncworld.com/news/n/4494.html

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP SDK 3.0.3
Comment: ""

iQA/AwUBQAuXBVO1BMLbAt3oEQIQtACeNXTbREGms4lKVYYCqQHr0snNNDUAoKZV
rCP7zsXQfCbMyfybhlsm3t96
=U3Mj
-----END PGP SIGNATURE-----

posted by rene @ 06:36  

pop-up stopper

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


17/1/2004, 22:18

ora vejam soh... estou eu aqui reinstalando tudo nesse pc, e agora que
reinstalei o yahoo companion, vi que o yahoo oferece um pop-up
stopper. vou testar e depois conto

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP SDK 3.0.3
Comment: ""

iQA/AwUBQAnRXlO1BMLbAt3oEQI5swCfauChnqMHahg/l1wzQDTbeAknCMsAoOYJ
alOQFxXPX0RWZNAHAAKhISQa
=i3a9
-----END PGP SIGNATURE-----

posted by rene @ 22:21  

pra quem tem o coracao a valvulas

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


pra quem eh do tempo do bombril na antena da TV :)

> televisão, antes, "pegava". o canal 5 pegava bem, outros não,
> e você ia girando as antenas compridas...

http://www.usina.com/solo/000453.html

abracao

r
e
n
e'

(no laptop)

http://www.usina.com
-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAe3LWVT6KLvVuluEQIPCQCfWiouNNoex+7ai4p7qtm+BkKpGWMAoO9h
+Tn4Q0niuUmvSRBaEFc0KmLC
=HlmT
-----END PGP SIGNATURE-----

posted by rene @ 08:04  

ciencia cognitiva e mtv

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

artigo meio rapido mas interessante sobre a nossa capacidade pra
assimilar o mundo bloomberg/mtv:

ex=1074654746&ei=1&en=956>

r
e
n
e'

(no laptop)

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAevPmVT6KLvVuluEQKDvwCcDuEOrUXog/C+Ved2J36OATMprL0AoOQR
nqa93NuV9CQJug/A4hQW1elZ
=kUPp
-----END PGP SIGNATURE-----

posted by rene @ 07:30  

ressuscitando pc's: a missao

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

just for the record: eu estou hah dias tentando recuperar o que sobrou
do meu desktop depois de um pau de hd. instalei o XP num disco novo e
comecei a usar o assistente do xp para "transmigracao de almas". ateh
aih eu jah tinha contado

aqui vai uma novidade util: se vcs forem fazer isso, facam antes o
update do XP recem-instalado, senao ele nao consegue importar a alma do
outro

abracao

r
e
n
e'

(no laptop)

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAZWF2VT6KLvVuluEQKzbQCeMEkGqZugkYKa7zTLW7m/J0S9+JkAoPBT
sSduT1Y2P7K8LBmplE4Ik2me
=rfuw
-----END PGP SIGNATURE-----

posted by rene @ 06:58  

de pdf pra jpg

pena que soh tem pra mac, mas eh o maximo. procurem
no versiontracker.com pelo KUNVERT, que transforma PDF
em jpg ou pict. quebra um galhao

abracao

rene

=====
r
e
n
e rene@usina.com
5511 9127 2665
yahoo messenger: renedepaula

posted by rene @ 13:44  

ressuscitando pc's

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

soh falta aquela musica do chico: "tah lah o corpo estendido no
chao..."

meu pc tah eviscerado aqui, enquanto tento recuperar o que sobrou
depois de uma falha de hd.

estou usando um recurso do xp bastante interessante, um assistente pra
transferir arquivos e configuracoes de uma maquina velha pra outra
nova. vamos esperar que funcione minimamente. mas a ideia por tras
dela me parece louvavel: eh como a versao digimundo da "reencarnacao"
:)

depois eu conto se funcionou

abraco

r
e
n
e'

(no laptop)

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAUQTGVT6KLvVuluEQI9kwCfbecrH8ineQTUA65dv61H//Sip4gAoPgw
Jd2Du/U+hx4yfINQRAvv9rXQ
=bPOh
-----END PGP SIGNATURE-----

posted by rene @ 07:48  

arrah!!! soh agora caiu a ficha do movable type

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

estava eu agora digitando a url do meu movable type quando caiu a
ficha: movable type eh tipo movel, que foi o principio da prensa do
Gutemberg, e que foi literalmente uma virada de pagina na historia
humana.

ok, ok, eh meio obvio, mas juro que nao tinha percebido antes :)

r
e
n
e'

(no laptop)

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAUMPWVT6KLvVuluEQKNKACdFvfrNsfzzeObsxMvipmZvd6wLp8AoOXH
/YyLCHwHohd1GTlosbIoHWTE
=J+Uf
-----END PGP SIGNATURE-----

posted by rene @ 07:30  

o melhor de 2003

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- -----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1



uma lista interminavel e interessante do melhor de 2003:

http://www.fimoculous.com/year-review-2003.cfm

abracao

r
e
n
e'

(no laptop)

http://www.usina.com

- -----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAJyKGVT6KLvVuluEQKQRgCg12g/TpiWUXzMvk7HfuKu0s36XgIAnjE7
bAKnevifyKIWdd4lHvzDbk4A
=mkF7
- -----END PGP SIGNATURE-----


-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAJyPGVT6KLvVuluEQKUhwCfUmOdQMkG18ez8FyYDc/839WTAZMAn191
HeStXREujotFwxtdax/J22Be
=ajkr
-----END PGP SIGNATURE-----

posted by rene @ 09:38  

messenger integrado

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

11/1/2004, 20:46

estou usando no windows xp o GAIM, que me permite usar o ICQ, MSN e
yahoo messenger num software soh. eh gratis e funciona super bem, eh
leve, usa tabs... http://gaim.sourceforge.net/

hoje saiu versao nova :)

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAHSd1O1BMLbAt3oEQK9rACglDBabkTWe/j/f24p5ohIWDrr1ggAnjXv
JAMAfBRNpUVYp2c8r2t6GXfk
=hS+B
-----END PGP SIGNATURE-----

posted by rene @ 20:47  

para mudar prioridades no mac

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

opa, isso ajuda muito: poder mudar as prioridades dos programas rodando
em mac OS X. e eh gratis

http://www.versiontracker.com/dyn/moreinfo/macosx/13366
r
e
n
e'

(no laptop)

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBQAAgEGVT6KLvVuluEQJKDgCeJcbjJOiWXxKvmp8jZ2SRNBUPIe8An1ab
Fzd9a0q5o/9uKlN+kBLFC3qq
=irA7
-----END PGP SIGNATURE-----

posted by rene @ 16:48  

ftp pra palm

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

10/1/2004, 09:58

wow... deve ser muito engracado fazer ftp por um palm... pelo menos
eh
gratis:

http://www.freewarepalm.com/communication/ezftp.shtml

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP//pH1O1BMLbAt3oEQIdJACePhFQ3pH29qp5YxGz6tgSdHpA1nwAnRCG
LUeckBk4W+EC6I3X98poAWyZ
=HFga
-----END PGP SIGNATURE-----

posted by rene @ 16:26  

plano de saude pra macs!!! alguem ouviu minha ideia

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

serah que minhas ideias geraram frutos? tempos atras, num roda&avisa
(http://www.usina.com/rodaeavisa ) eu sugeri que deveria haver um
plano de saude informatico. vejam isso:

http://www.maccare.com.br/

que bom. tomara que de certo.

rene (via webmail)

rene@usina.com
http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/79HmVT6KLvVuluEQImjACgj6Qi+iEYOzMl1hBcL55FGJ9XATUAoM2k
kYwZdircOf9+6Dk/CucVHO3W
=xpJO
-----END PGP SIGNATURE-----

posted by rene @ 17:13  

de pdf pra html

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

9/1/2004, 07:04

vamos mandar pro estadao! um software que converte pdf em html
mantendo formatacao e tudo:

http://www.versiontracker.com/dyn/moreinfo/win/29278

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/5unlO1BMLbAt3oEQJFdwCg64o853173i8sM2RpeEMEmB5brW4AoK73
DxNs7IFtuRqDrsF4mhTCy8YB
=UNUI
-----END PGP SIGNATURE-----

posted by rene @ 07:05  

z-machine? interactive fiction?

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

9/1/2004, 06:46

alguem jah ouviu falar disso?

> About Frobnitz is a Z-Machine interpreter that runs on PalmOS.
> What's a Z-Machine, you ask? It's the virtual machine developed by
> Infocom for its text adventures, also known as "interactive
> fiction". Infocom has long since passed on, but the Z-Machine
> format has since been adopted for the authoring of interactive
> fiction by others

vou pesquisar. parece interessante
abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/5qbVO1BMLbAt3oEQKG7ACfSo4/NOaanXmK01mbCeqWXtHZGKEAn2BQ
BrC6KNY2sx5f4pjcnPGVEyhw
=dBIJ
-----END PGP SIGNATURE-----

posted by rene @ 06:47  

roda e avisa: pra quem nunca ouviu

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

8/1/2004, 20:32

well, jah que tem um monte de radianos novos, vou aproveitar e contar
do "roda & avisa", um audioblog sem peh nem cabeca que criei meses
atras.

a ideia eh simples: se alguma ideia surtada me ocorre, eu falo de
improviso por uns 5 a 7 minutos e publico em mp3. quando eu gravo no
laptop o som fica melhor, quando gravo no celular (como hoje) fica
parecendo... radinho :)

ontem fiz um post sobre o lado "querido" do digimundo, agora estou
publicando um sobre "a insustentavel leveza" do digimundo.

tah aqui: http://www.usina.com/rodaeavisa . espero que vcs gostem ;)

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/3cHlO1BMLbAt3oEQKgsQCfbto+An3zoJSTWIF8R3DWDrokoK0AoNUd
TqJNmnQ78USaPmrFRQ+y3vJR
=8Br6
-----END PGP SIGNATURE-----

posted by rene @ 20:39  

spam com recheio de vento

que gozado... cada vez mais recebo uns spams totalmente nonsense, do tipo

"afforestation dental alaska pyrotechnic halley bandgap sundial blockage
cusp hackberry mobility telefunken semaphore depreciate organometallic
courtroom invisible lossy bater abridgment calculi pick reilly evaporate
opus urethane"

e soh. eu posso estar viajando, mas a unica logica que vejo nisso eh
desbaratinar filtros de spam bayesianos. se vc diz pro filtro que isso eh
spam, o filtro deve surtar tanto que comeca a bloquear absolutamente qqer
coisa

serah?

abraco


rene (via webmail)

rene@usina.com
http://www.usina.com

posted by rene @ 13:55  

spam com recheio de vento

que gozado... cada vez mais recebo uns spams totalmente nonsense, do tipo

"afforestation dental alaska pyrotechnic halley bandgap sundial blockage
cusp hackberry mobility telefunken semaphore depreciate organometallic
courtroom invisible lossy bater abridgment calculi pick reilly evaporate
opus urethane"

e soh. eu posso estar viajando, mas a unica logica que vejo nisso eh
desbaratinar filtros de spam bayesianos. se vc diz pro filtro que isso eh
spam, o filtro deve surtar tanto que comeca a bloquear absolutamente qqer
coisa

serah?

abraco


rene (via webmail)

rene@usina.com
http://www.usina.com

posted by rene @ 13:55  

artigo bacana sobre internet 6

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

7/1/2004, 07:11

saiu hoje na technology review. como eles requerem cadastro, lah
vai:

- -------------------------------------------------------------


Internet 6.0
The next version of the Internet Protocol, IPv6, will supply the
world
with addresses by the trillions. Too bad it will also make the Net
slower and less secure.

By Simson Garfinkel
The Net Effect
January 7, 2004


It will be the biggest, the most drastic, and the most comprehensive
change to the underlying structure of the Internet in more than 20
years. The deployment of IPv6—the sixth version of the Internet
Protocol—will be a massive undertaking that will require the
reconfiguration of more than 100 million computers. Not since the
adoption of the Internet Protocol itself in January 1983 has there
been such a fundamental shift. But when the IPv6 rollout is finally
done, not all the effects will be positive: the new Version 6
Internet
will be slower, more friendly to peer-to-peer-based copyright
violation systems, and the computers on it will almost certainly be
less secure.




You might therefore be tempted to dismiss IPv6 as a technological
road
to nowhere. But if you did that, you would be making a mistake. IPv6
is happening. The code that lets computers talk on an IPv6-enabled
network is now built into the current versions of Windows XP, MacOS,
Linux, and many forms of Unix. Every router made by Cisco comes ready
to run IPv6. So does every Nokia mobile phone. The whole world is
getting dressed up for the IPv6 party.

Will we have anywhere to go? Perhaps Japan or China. IPv6 has been
very big in Asia. While the networking protocol was being largely
ignored by American academia, the Japanese government funded the KAME
Project “to create a single solid software set” of IPv6 and related
technologies. KAME involves researchers from Fujitsu, Hitachi,
Internet Initiative Japan, NEC, Toshiba, and Yokogawa Electric. KAME
software has taken hold in Japan and, large parts of the Japanese
Internet backbone are running IPv6. In many ways it looks like the
United States is falling behind.

So what is IPv6 anyway, and why does it matter?

To answer that will require a bit of a refresher course on the nature
of the Net. The Internet is a huge machine that exists for the
purpose
of transporting little packages of information called packets. You
can
think about these packets as tiny digital postcards, each about 500
bytes in length and stamped with the address of its sender and the
intended destination. To understand these packets, every computer on
the Internet needs to communicate with the same fundamental language.
Computer designers call these languages “protocols.” Today’s Internet
uses IPv4, the 4th version of the Internet Protocol. (Versions 1
through 3 never made it out of the lab. Neither, for that matter, did
Version 5.)

IPv4 is pretty good as protocols go, especially for one that was
designed back in the 1970s. But it does have problems—all of them
tolerable except for one. Every computer on the Internet needs to
have
its own Internet address, and IPv4 addresses are just 32 bits in
length. The result of this decision made nearly 30 years ago is that
the Internet simply cannot handle more than 232 or 4,294,967,296
devices. For a variety of technical reasons, the actual number of
devices is a lot smaller than that—far closer to 2 billion, in fact.

With hundreds of millions of people using the Internet, with Internet
addresses being dropped into cell phones to support tiny Web
browsers,
and with household appliances like refrigerators and washing machines
scheduled to get their own Internet addresses within the next few
years, it’s easy to see why we could soon run out of those 32-bit
addresses.

The most important thing that IPv6 does is quadruple the size of the
Internet address field from 32 bits to 128 bits. Because in
principle,
any combination of these 128 bits is a valid address, this
quadrupling
results in a massive increase in space. For example, whereas IPv4
could never supply enough addresses for every human being on the
planet, IPv6 can do that and then some: in fact, IPv6 could provide
each of us roughly 60 thousand trillion trillion addresses.

Put another way, the switchover will result in roughly 5,000
addresses
for every square micrometer of the Earth’s surface. There are so many
IPv6 addresses that humanity will never run out of them—never, ever.


Those extra bits help explain why the Asian nations are so interested
in IPv6. According to the trade publication DSL Reports, slightly
more
than 3 billion of the 4 billion 32-bit IPv4 addresses are now
allocated to U.S.-operated Internet service providers, while China
and
South Korea—with a combined population of more than 1.3 billion—have
been allocated 38.5 million and 23.6 million respectively. Is it any
wonder that these countries aren’t happy with IPv4?

But alas, those extra bits don’t come for free. Deploying IPv6 means
that every application that uses Internet addresses needs to be
changed. Every Web browser on every computer, every copy of Outlook
Express, every e-mail server, and every Web server needs to be
upgraded to handle the 128-bit addresses. One transition strategy
calls for most computers to simultaneously have both IPv4 and IPv6
addresses. The problem with this approach is that there’s never a
good time to have people start deploying systems that are only
V6—that’s because somewhere, somebody is going to have a machine
that’s V4 only, and they won’t be able to communicate with you.

Another obstacle to IPv6 is that the routers that run the Internet’s
backbone circuits aren't set up to handle the longer addresses.
Today,
most routers come equipped with special-purpose integrated circuits
that can route IPv4 packets very quickly. But because there is no
demand for it, those routers don’t have similar hardware that can
route V6 in hardware: those packets have to be routed in software,
which is a slower process. As a result, most experts think that the
V4
routers simply couldn’t keep up if the Internet’s backbone were
suddenly switched over to IPv6—the router hardware would have to be
upgraded, which would be very expensive. Most corporations would
face
similar upgrades. At a medium-sized business with perhaps 16
high-speed routers, the cost would easily exceed $1 million.

Yet another problem with IPv6 has to do with all of the impending
security problems it will cause. Network aficionados will be quick to
point out that IPv6 implementations offer cryptographic security,
since the Internet’s IP security (IPsec) standard is “mandatory,”
according to the IPv6 spec. But what IPv6 boosters won’t tell you,
unless you press them, is that every new IPv6 nameserver, Web server,
Web browser, and so on has new code—code in which security problems
may lurk. Indeed, security problems with new protocol implementations
are to be expected. And while some issues have been found with these
new IPv6 servers, more are sure to be discovered.

But what could be the final nail in the coffin of IPv6 is a black
magic technology that’s made those extra gazillions of IP addresses
far less important than they once were. This technology—called
Network
Address Translation, or NAT—lets dozens or even thousands of
computers
hide behind a single IP address. NAT is the key technology that’s
built into most corporate firewalls and practically every home router
on the market.

NAT violates one of the fundamental rules of the original Internet.
With NAT it is no longer true that every computer on the Internet has
its own unique IP address. On today’s Internet, most computers use
so-called “private addresses” that are hidden behind firewalls. The
firewall then rewrites or translates the packets as they move from
inside your home network to the great beyond; the packets from the
Internet get similarly translated upon their return.

Because of NAT, most technologists have stopped worrying that the
Internet is about to run out of address space. If you have a home
network with a home firewall—and in the future, practically everybody
will—then your toaster, your air conditioner, your furnace, and your
refrigerator can all be plugged into it and communicate with their
manufacturers, with each device sharing your firewall’s IP address.

But for all of its apparent utility, NAT is really the devil. It’s a
Faustian bargain, a technology that appears to answer all of a
network
engineer’s problems, but ultimately causes long-term troubles that
are
far more profound than the ones that it purports to solve. In fact,
one of the big reasons that the Internet’s early technologists wanted
to get IPv6 deployed in the 1990s was to prevent the widespread
adoption of NAT.

In its simplest incarnation, NAT creates a kind of one-way fence:
computers behind the NAT firewall can open up connections to Web
servers and mail servers on the Internet, but random attackers on the
Net can’t reach back through the NAT and break into your unprotected
desktops and laptops. It has worked so well, in fact, that many
organizations use NAT as their primary defense against hackers and
worms. NAT has let organizations take the lemon of limited IP
addresses and make a lemonade of improved security.


But the apparent security that NAT provides is a mirage. The
proliferation of laptops, e-mail attachments, and open wireless
networks means that there are many opportunities for hackers and
worms
to get behind a NAT and launch attacks from the inside. Many
organizations have learned the hard way that you cannot achieve
secure
computing by relying upon perimeter defenses (a topic I discussed in
a
previous column).

At the same time, NAT’s one-way fence makes it harder for
peer-to-peer
applications to operate. That’s a problem for file trading programs
such as Kazaa, but it’s also a problem for Internet telephony and the
next generation of multimedia groupware applications. For example,
the
two-way videoconferencing system that’s built into Apple’s iChat
software works behind some kinds of firewalls but not behind others.
The program comes with an elaborate “connection doctor” program to
help users diagnose problems that their firewall might be causing.

These problems go away when every computer on the Internet really
does
have its own IP address—something that’s impossible today with IPv4,
but which is the raison d’être for IPv6. In a world with IPv6 and
without NAT, every computer in my house has its own unique IP address
on the public Internet. That means my desktop can open up a
peer-to-peer connection with my desktop at work, but it also means
that my daughter can network her machine directly with some
teenybopper P2P network in San Jose. Getting everybody’s home machine
out from being a NAT box should make possible a lot of interesting
applications that are either very difficult or downright impossible
today. And in all likelihood, some of those applications will not be
popular with the Recording Industry Association of America or the
Motion Picture Association of America, both of which have taken the
lead against peer-to-peer networks. As soon as they understand what a
threat IPv6 is to their police actions, they are likely to start
fighting against.

Given that the full-blown transition to IPv6 hardly seems imminent,
technologists are struggling to at least chart some kind of workable
path between where we are and the wondrous world of 128-bit
addresses.
One approach that’s been proposed is called Realm Specific Internet
Protocol, or RSIP. Designed as a replacement for NAT, RSIP allows
organizations to keep using 32-bit IP addresses, keep their private
address space, and eliminate the problem of packets being rewritten
or
translated. The good thing about RSIP is that it doesn’t require
changing application programs like browsers and e-mail clients; the
bad thing is that it still requires making fundamental changes to
operating systems.

A more likely path is that some small-but-influential organizations
will start to adopt IPv6 internally as a kind of example, and these
organizations will then link up and slowly build a new IPv6
landscape.
Still, it’s hard to see major U.S. Internet service providers
spending
the money to upgrade their backbones from IPv4 to IPv6 unless the
transition is mandated by the some big customers or the federal
government. The latter is less far-fetched than you might think: the
U.S. Department of Commerce recently set up a task force to look at
the issue, since it’s widely believe that IPv6 will be more secure
than IPv4 thanks to its use of IP-level encryption. Of course, that
same encryption is available in IPv4 through the IPsec standard.

Asia, Africa, and India will all probably adopt IPv6, but IPv4 will
not die in the United States—or even in the federal government. It’s
simply too easy for U.S. homes, businesses, and government offices to
keep using what they have, and let the ISP set up gateways between
the
IPv4 Internet and the IPv6 Internet. Eventually, these gateways will
grow into firewalls, passing some kinds of traffic between the United
States and the rest of the world, but blocking other data—for
example,
unauthenticated e-mail that might be spam. The IPv4/IPv6 divide could
be similar to the English/metric divide that we face today, and plans
to move the U.S. Internet to IPv6 could end up being as successful as
plans in the 1970s to change all the speed limit signs to kilometers
per hour.

IPv6? Perhaps my seven-year-old daughter will use it when she goes to
college, but probably only if she goes to Oxford.
http://www.technologyreview.com/articles/wo_garfinkel010704.asp?p=0

- --------------------------------------------------------------


abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/vNnFO1BMLbAt3oEQIklwCfUuQbue9meno1YY0rmqTWlZxiJ9AAoOdV
LPl3FQIJWiWuhsKox/U9wuSF
=p/q5
-----END PGP SIGNATURE-----

posted by rene @ 07:13  

ipod: acessorios

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

7/1/2004, 06:50

eu nunca tinha visto os acessorios do ipod... inacreditaveis:
http://www.apple.com/ipod/accessories.html

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/vIblO1BMLbAt3oEQLhbwCfVibeaz0xF+Us3BYGcWoeW8qPqBkAoOA+
iNnCV31P+TMxBJ7DnHYz6wsn
=3uO4
-----END PGP SIGNATURE-----

posted by rene @ 06:52  

ipod mini (link)

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

7/1/2004, 06:48

caramba, fiquei tao comovido com o ipod mini que esqueci o link:

http://www.apple.com/ipodmini/

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/vH1VO1BMLbAt3oEQKk5gCgigdapDvog5En99zLmKm3+3xrVS0AmQFg
OJMiAfKSGvlf7dAivA4VXqW+
=nKrG
-----END PGP SIGNATURE-----

posted by rene @ 06:48  

ipod mini

7/1/2004, 06:47

agora a apple arrasou. vejam o ipod mini:


abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

posted by rene @ 06:48  

off-topic no urrtimo, mas legal

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

7/1/2004, 06:41

essa eu achei no blog do Marcelus: um tratado sobre paises que
dirigem
do lado esquerdo ou direito, as razoes historicas, as curiosidades...
off-topic total, mas interessante:

http://www.travel-library.com/general/driving/drive_which_side.html

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/vGjlO1BMLbAt3oEQIctwCdGXp6jhMa28MjDtjJtsRZ/n0Q3IoAnR8K
+r9nAj/1mu5WTqthtr/Bgvmk
=qilG
-----END PGP SIGNATURE-----

posted by rene @ 06:44  

sobre sites de comunidades

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

5/1/2004, 12:56

cross-listing total: esse eh um comentario sobre alguns sites
parecidos com o friendster, e achei as colocacoes interessantes:

>>A new form of software has quickly arrived on the scene that will
>>compliment our efforts with Weblogs. It's called Social Networking
>>software. You can see examples of this at Friendster and LinkedIn.
>>>
>>>http://www.friendster.com (more of a dating system)
>>>http://www.linkedin.com (more corporate)
>>>
>>
>>
>> See also http://www.tribe.net - better than both friendster and
>> linkedin IMHO
>>
>
> Can you describe why (or from what viewpoint) you consider Tribe to
> be better than Friendster and LinkedIn?
>
> From the perspective of business networking I consider LinkedIn to
> be the most promising service I have tried so far. I am also a
> member of Ryze and Ecademy.
>
> LinkedIn offers some interesting features. Firstly it does not
> expose your network directly. I cannot even look at a contact of
> mine and browse the other people they know. The only way to find
> people is to search on common interests, companies, etc.
>
> Even when you find someone you may not be able to contact them
> directly.
> Everyone has the option to specify whether people can contact
> them directly or, and this is LinkedIn's best feature IMO, by
> referral.
>
> If I want to get in touch with someone I am not directly connected
> to my request must go via a chain of contacts, starting with
> someone I know, going via someone they know, and finally on to
> that person. Every person in the chain has the option to forward
> the contact request on, or to reject it.
>
> The simplest case is A->B->C. I am A. I want to make contact with
> C. I know B and the system knows that B knows C. So my request
> goes to B. If B approves it, the request is passed on to the
> destination C.
>
> To help this process along members can specify the kinds of
> requests they are willing to receive. For example you might say
> you are
> interested in job offers but not new products.
>
> I have participated in this process several times now both as the
> initiator of a request and as a link in the chain. It's interesting
> and it seems to work.
>
> For these and other reasons I would say that, if I paid a
> subscription to any service today, it would be to LinkedIn.


abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/l7blO1BMLbAt3oEQJ7FQCeOyFD1Yse0Iruxuc3HQHSOt1CTx0AoJcL
skv0gWaBOaZnNiyw+g4ts+0Z
=8d01
-----END PGP SIGNATURE-----

posted by rene @ 12:58  

sites mais influentes

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

5/1/2004, 10:53

artigo na BBC:

- --------------------------
'Most influential' websites named

Online auction site eBay has a reciprocal element
Google, eBay and Friends Reunited are among key influential websites
which have had the biggest impact on UK web users, say analysts
Nielsen Netratings.
http://news.bbc.co.uk/2/hi/technology/3356903.stm

- ----------------------------------------

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/lec1O1BMLbAt3oEQL2OQCgjGnrye9WYI/WX0UTMjnAlpQoUvUAn3Vg
1zxXDQCIkMZxcDRdEoP8fAlE
=yOpv
-----END PGP SIGNATURE-----

posted by rene @ 10:55  

fale klingon!

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

4/1/2004, 10:26

essa eh pros palm-users e fanaticos por star trek: um
"aprenda-voce-mesmo" klingon (alfabeto e pronuncia!) gratuitos

faltou soh um guia fashion klingon :)

C2D7CACAAEBE776E2CC7D5F8BF&catalog=0§ionId=0&productType=2&platfor
mId=1&productId=95729>

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/gGmVO1BMLbAt3oEQIpYACdELNX8g6YiQBizlB9XVnL/eZCYCsAnjZs
pGVs518FGaOIEwSY7smGaKlX
=Y6cO
-----END PGP SIGNATURE-----

posted by rene @ 10:28  

101 dicas pra salvar a internet

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

1/1/2004, 16:31

a wired compilou 101 dicas pra salvar a internet:

http://www.wired.com/wired/archive/12.01/internet.html

alguem tem outras?

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/Rnu1O1BMLbAt3oEQLm3QCfbOeGKmeC8OyULWZpBP9QwgE3nfcAoKM5
zwrkHVt8Y8lhnGxZbVjaiV09
=4OHs
-----END PGP SIGNATURE-----

posted by rene @ 16:33  

IBook, IPod Users Plot Lawsuits

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

opa, vou entrar nesses processos tambem! meu ibook me deu dor de
cabeca pra caramba

- ----------------------------------------------------------------------
- --

IBook, IPod Users Plot Lawsuits

As Apple fans anxiously await news and announcements from next week's
Macworld expo, two online petitions are collecting hundreds of
signatures from potential plaintiffs complaining of problems with the
iBook and iPod.

http://r.hotwired.com/r/wn_story_mailer/http://www.wired.com/news/mac/
0,2125,61774,00.html



-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/RnR1O1BMLbAt3oEQIEfACfTfGcR+WC//7CqSpghVYQVSnfyFoAoP2d
DzGinwPqC/TnrFQDcz0U4PMf
=I3Ps
-----END PGP SIGNATURE-----

posted by rene @ 16:32  

canonizem esse cara!

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

1/1/2004, 12:00

tim berners-lee agora é Sir! barbaro:

The inventor of the world wide web, Tim Berners-Lee, has been awarded
a knighthood for his pioneering work.

http://news.bbc.co.uk/2/hi/technology/3357073.stm

abracos

r
e
n
e'

rene@usina.com

http://www.usina.com

-----BEGIN PGP SIGNATURE-----
Version: PGP 8.0.3

iQA/AwUBP/QoJFO1BMLbAt3oEQJQtwCfSQxMZdQOE2XHEbAt+un8uMKEF+sAn1Pa
AAuSuDA8iTF2qmGXRGKrTgdR
=CabS
-----END PGP SIGNATURE-----

posted by rene @ 12:02