serranos :: a feature not a bug

Firefox and MD5 certificates detection

serranos — Mon, 05 Jan 2009 15:26:30 +0000

SSL Blacklist: a cool little Firefox plugin for blacklisted SSL certificates, including MD5 certificates detection.

[via SANS]

Address Book – from Tiger to Leopard

serranos — Fri, 05 Dec 2008 11:06:10 +0000

Yesterday I got a HUGE problem with my first Leopard/Nokia synching – yes, I only changed to Leopard this last weekend, definitely not an early adopter. Basically I lost about 40% of my contacts. Then I thought the worst part was that my only backups were from my Tiger install and that might cause some “issues”… After thinking about millions of possibilities, namely booting from external drives, restoring from iBackup, etc, etc, (which none of them worked by the way) I found the solution at Apple Support.
Solution:

Shutdown address book;
Replace the current Leopard
```
~user/Library/Application Support/AddressBook
```
directory by the Tiger backuped one;
Launch address book again;
Done! (Leopard migrates the Tiger Address Book automagically).

PacketLife.net and networking cheat sheets

serranos — Mon, 17 Nov 2008 15:25:05 +0000

And now for something totally different… a master place for networking cheat sheets at PacketLife.net.

Currently available cheat sheets:

PacketLife.net Cheat Sheets – bgp
PacketLife.net Cheat Sheets – cisco-ios-versions
PacketLife.net Cheat Sheets – common-ports
PacketLife.net Cheat Sheets – eigrp
PacketLife.net Cheat Sheets – first-hop-redundancy
PacketLife.net Cheat Sheets – ieee-8021x
PacketLife.net Cheat Sheets – ip-access-lists
PacketLife.net Cheat Sheets – ipsec
PacketLife.net Cheat Sheets – ipv4-multicast
PacketLife.net Cheat Sheets – ipv6
PacketLife.net Cheat Sheets – is-is
PacketLife.net Cheat Sheets – markdown
PacketLife.net Cheat Sheets – mediawiki
PacketLife.net Cheat Sheets – mpls
PacketLife.net Cheat Sheets – ospf
PacketLife.net Cheat Sheets – physical-terminations
PacketLife.net Cheat Sheets – qos
PacketLife.net Cheat Sheets – spanning-tree
PacketLife.net Cheat Sheets – subnetting
PacketLife.net Cheat Sheets – tcpdump
PacketLife.net Cheat Sheets – vlans
PacketLife.net Cheat Sheets – wireshark-display-filters

Exposição Robôs Insectos

serranos — Thu, 06 Nov 2008 11:32:28 +0000

“Leonel Moura, o Philip K. Dick da arte contemporânea portuguesa, inaugura (apetece escrever ‘estreia’) mais uma exposição (apetece escrever ‘episódio’) da sua galeria (atentar à polissemia do termo) de robôs-artista. Depois de autómatos-pintores e robôs-poetas, temos pequenas máquinas a fazer de insectos. Cerca de uma centena de robôs, de várias espécies, morfologias e comportamentos, podem ser vistos na Leonel Moura Arte numa exposição que tanto divertiria Charles Darwin como Isaac Asimov. Francisco Marto“.

onde
Leonel Moura Arte, Rua das Janelas Verdes, n.º76

quando
Ter a Sáb das 13h às 19.30 horas

quanto
Entrada Livre

Via LeCool.

Cisco’s and Da IOS Rootkit

serranos — Tue, 27 May 2008 10:00:53 +0000

After Sebastian Muniz from Core Security Technologies speak at the EUSecWest London Conference held in May the 22nd about a proof of concept rootkit for Cisco’s IOS. Cisco has released an interesting response to it at their site. Worth reading.

Installing Macports for the first time

serranos — Wed, 21 May 2008 13:01:49 +0000

For the first time since I have a mac I needed to install MacPorts. I needed to install some CPAN modules and therefore some common packages (e.g. ncftp) were required. This was a simple process but nevertheless some problems arose and so I thought it would be a good idea to document them here. So here goes:

Install macports from the dmg (for Tiger in my case), don’t forget about the pre-conditions – X11 and XCode.
No problem here, just click and shoot;
Trying to update MacPorts returned an error

moebius:~ username$ sudo port selfupdate Password: Error: /opt/local/bin/port: port selfupdate failed: Couldn't sync the ports tree: Synchronization the local ports tree failed doing rsync

Validate connectivity to macports server (apparently sometimes there are availability problems):

moebius:~ username$ telnet rsync.macports.org 873 Trying 17.254.17.246... Connected to rsync.macosforge.org. Escape character is '^]'. @RSYNCD: 29 quit Connection closed by foreign host.

Connectivity is now OK, update MacPorts

moebius:~ username$ sudo port selfupdate Password:

MacPorts base version 1.600 installed

Downloaded MacPorts base version 1.600

The MacPorts installation is not outdated and so was not updated selfupdate done!

Testing MacPorts by installing lynx;

moebius:~ username$ sudo port search lynx lynx www/lynx 2.8.6rel.5 Text-based web browser moebius:~ username$ sudo port install lynx ---> Fetching ncursesw ---> Attempting to fetch ncurses-5.6.tar.gz from http://ftp.gnu.org/gnu/ncurses ---> Verifying checksum(s) for ncursesw ---> Extracting ncursesw ---> Applying patches to ncursesw ---> Configuring ncursesw ---> Building ncursesw with target all ---> Staging ncursesw into destroot ---> Installing ncursesw 5.6_1 ---> Activating ncursesw 5.6_1 ---> Cleaning ncursesw ---> Fetching ncurses ---> Verifying checksum(s) for ncurses ---> Extracting ncurses ---> Applying patches to ncurses ---> Configuring ncurses ---> Building ncurses with target all ---> Staging ncurses into destroot ---> Installing ncurses 5.6_0 ---> Activating ncurses 5.6_0 ---> Cleaning ncurses ---> Fetching zlib ---> Attempting to fetch zlib-1.2.3.tar.bz2 from http://www.zlib.net/ ---> Verifying checksum(s) for zlib ---> Extracting zlib ---> Applying patches to zlib ---> Configuring zlib ---> Building zlib with target all ---> Staging zlib into destroot ---> Installing zlib 1.2.3_1 ---> Activating zlib 1.2.3_1 ---> Cleaning zlib ---> Fetching openssl ---> Attempting to fetch openssl-0.9.8g.tar.gz from http://www.openssl.org/source/ ---> Verifying checksum(s) for openssl ---> Extracting openssl ---> Applying patches to openssl ---> Configuring openssl ---> Building openssl with target all ---> Staging openssl into destroot ---> Installing openssl 0.9.8g_0 ---> Activating openssl 0.9.8g_0 ---> Cleaning openssl ---> Fetching lynx ---> Attempting to fetch lynx2.8.6rel.5.tar.bz2 from http://lynx.isc.org/current/ ---> Verifying checksum(s) for lynx ---> Extracting lynx ---> Applying patches to lynx ---> Configuring lynx ---> Building lynx with target all ---> Staging lynx into destroot ---> Installing lynx 2.8.6rel.5_1+ssl ---> Activating lynx 2.8.6rel.5_1+ssl ---> Cleaning lynx moebius:~ username$ which lynx /opt/local/bin/lynx

Done!

Thunderbird 3 Alpha 1 is out

serranos — Fri, 16 May 2008 14:00:01 +0000

A good review at Lifehacker from which a couple of features are nice enough for me to give it a try:

“(…) OS X version of Thunderbird 3 uses Macs’ native Cocoa styling for a more integrated look (…)”
“(…) Mac users get another long-awaited feature with Thunderbird 3′s ability to integrate with the native OS X Address Book (…) “

don’t forget the other tip “(…) Thunderbird 3 Alpha 1 is very rough indeed—the developers have all but promised you’ll get crashes, bugs, and feature conflict (…)”.

Good luck.

Interactive whiteboard using the Wiimote

serranos — Fri, 16 May 2008 09:54:08 +0000

This is obviously something very, very cool :)

software and more info at the author’s website.

You can also checkout his presentation at TED talks.

Get Cisco 3500 into factory defaults

serranos — Tue, 29 Apr 2008 15:29:59 +0000

Ever needed to get an old Cisco 3500 EOL switch into factory defaults? Well I did. Since no ROMmon is available for this model a different approach is needed. That said I made a little recipe to get the system going:

“Power-up” the switch while pressing the mode button at the front;
Release the mode button when Port1x LED goes out;
You now have the switch: prompt;
Type flash_init
- switch: flash_init;
Type load_helper
- switch: load_helper;

Check the flash contents

switch: dir flash:

Directory of flash:/

2    -rwx  1645807     c3500XL-c3h2s-mz-120.5.2-XU.bi
3    -rwx  94680       c3500XL-diag-mz-120.5.2-XU
4    drwx  6784        html
111  -rwx  272         env_vars
112  -rwx  600         vlan.dat
113  -rwx  2363        config.text

843264 bytes available (2769408 bytes used)

Rename the config file
- switch: rename flash:config.text flash:config.old.text

Reboot the switch

switch: boot

Loading "flash:c3500XL-c3h2s-mz-120.5.2-XU.bin"...
###########################################################################
###########################################################################

Erase vlan database

Switch#delete flash:/vlan.dat

Switch#delete flash:/vlan.dat
Delete filename [vlan.dat]?
Delete flash:/vlan.dat? [confirm]

Copy current config to flash (creates new config.text)
- Switch#copy running-config startup-config

Delete old config file

Switch#delete flash:/config.old.text

Delete filename [config.old.text]?
Delete flash:/config.old.text? [confirm]
Switch#

Done!

Detailed information may be found at Cisco’s website.

Utilizar Quicksilver para alertas

serranos — Tue, 22 Apr 2008 08:44:12 +0000

Sou um grande admirador do Quicksilver e utilizo-o para muitas coisas (e.g. lançamento de aplicações, integração com iGTD). A última das quais tinha tomado conhecimento há uns tempos, mas na altura não me pareceu muito útil. Até hoje. Como tenho algumas tarefas diárias que podem demorar tempo indeterminado mas sem necessidade de serem finalizadas (exemplos: jogar, ler notícias :)), nada como um reminder para nos acordar para a realidade.

Fui à procura do artigo que tinha lido em macosxhints.com e acabei por encontrar também um vídeo do LifeHacker a demonstrar o processo (a banda sonora também não é nada má).

Num dos comentários ao artigo no macosxhints.com podemos encontrar a forma de definir o reminder de uma só vez, utilizando a combinação de teclas Ctrl+Enter para criar o comando:

Activar quicksilver;
Pressionar “.”;
Inserir texto;
Pressionar “Tab”;
Pressionar “Ctrl+Return”
Escrever “delay”;
Pressionar “Tab”;
Escrever “10s” (ou qualquer outro valor de tempo e.g. 5m);
Pressionar “Return”.

Et voilá.