Secure file sharing with Dropbox and BoxCryptor

One of my customers required a solution that made reliable backups and copies of a Microsoft Access database. The backups had to be accessible from three Windows machines.

I first had a look at the different cloud solutions.

Both Dropbox and Google Drive are valuable candidates. When you use these solutions it is important to have a look at their ToS to verify that they comply with your policies. A post on ZDNet canRead more.

Include an Evernote feed in your WordPress blog

I use Evernote to keep track of my ToDo’s, interesting web pages that I visited, found code snippets or some random thoughts. I have it configured in a browser on my laptop and as a separate app on my smartphone.

“Things” in Evernote are put in notebooks, notebooks can be shared. I’ve been sharing some of my notebooks with friends and colleagues to keep track of joint projects. These shared notebooks have a RSSRead more.

Graph the first 8 bits of the IP of apache logs

Below is a PHP script that will graph the first 8 bits of the visitors source IP in your apache logs. The bigger the circle, the more visitors you had. You’ll need gd support in PHP. The minimal width of the circle is set to 3, the maximum width is 85. You can run the script with

The first parameter is the log file. The second parameter is either 20x, 40x or 50x. This graphsRead more.

SANS SEC542 (Web App Penetration Testing and Ethical Hacking) cheat sheet

This week I obtained my GWAPT (GIAC Web Application Penetration Tester) certification (as a follow up to the SEC542 Web App Penetration Testing and Ethical Hacking course I followed last May). Besides the course notes I also used my own cheat sheet below.

Tip: take a copy of the ToC of every book and put them together on one big A3, if you want to look up something in the books it helps aRead more.

Track your laptop’s IP even when it gets stolen

If you take your laptop with you when you travel it can get stolen. Often when a laptop gets stolen the thieves don’t go to the trouble of re-installing your laptop. If you install IP-tracking software you might be able to locate its position when the thieves (or people who bought the device from the thieves) boot it. You would still have to go through the trouble of convincing law enforcement that it is yourRead more.

Run postfix as a blackhole mail server (open relay)

If you want to run Postfix as a blackhole mail server (accepting connection for every user on every domain) then all you have to do is add these settings to /etc/postfix/main.cf :

Note: Postfix is not acting as an open relay in this configuration because it discards mails and is not relaying them to the final destination.

Microsoft Messenger not logging in on Mac OSX

If you run Microsoft Messenger (MSN) on a Mac OSX and you keep getting the message “failed to login” then you have to remove these files in ~/Library/Preferences/Microsoft folder :

(short posting mostly to serve as a reminder for a myself because I keep on forgetting the exact path)

Mapping my neighbourhood SSIDs

A recent post by @xme revealed a tool that allows for passive mapping of SSIDs. I gave it a go for 48 hours and below are the results.

bbox2-1888 2126 bbox2-4344 1580 dlink 84 Veronique 123 31 bbox2-0530 28 telenet-4F11F 28 ZapFi 14 FON_BELGACOM 12 linford1986 4 Wifi 45 4 ZapFi-Gusto 4 coffee House 3 homewlan 3 queenshotel 3 WifiCharles 3 Axip-Home 2 Axip-NW 2 bbox2-22b5 2 SKY24721 2 WLAN_38 2 bbox2-c230 1 BENCHIJIGUA 1Read more.

BNP Paribas, internetbanking and security/privacy marriage failure

I do some of my internet banking through BNP Paribas. Today I was greeted with this message:

The flash notice isn’t such a big security risk on its own but from a banking site I’d expect they would be more careful by – informing users that a (useless) banner requires Flash on your computer (Flash being a popular attack vector is good for gaming sites, from a banking site I’d expect something else) – informing users upfrontRead more.

Top 10 Favorite iPhone apps

The iPhone is such a nice piece of gadgetry but it would not be nothing without the numerous apps. I’ve been using an iPhone (iOS 3, 4 and 5) for more that a year and a half and these are the apps (*) I can’t live without.(*) only apps that are not part of the default install.

Evernote makes it easy to remember things big and small from your everyday life using your computer,Read more.