Author Archives: Dae Punt

Click here to log in using your @Facebook account

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There are lots of websites (including dae’s weblog) that allow you to log in using your Facebook account. It’s strange you get a pop up window that hardly shows you the URL, which means you don’t know if you’re really submitting your credentials to Facebook, unless you check it first. And since the Facebook window doesn’t use an SSL-certificate, your name and password are sent over the network in plain text anyway. Wouldn’t it be better if this window featured an SSL certificate and a bigger URL bar, that shows exactly where your name and password are going?

Klik hier om je aan te melden met je Facebook-account

@LauraChappell University Projects Page #WireShark #Twitter @TweetDeck

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If you put your ear to the railroad (make sure there’s no train coming!), you can hear what’s going on. That’s exactly what Laura Chappell did to “hear” the traffic that crosses your network as soon as you use Twitter. She captured all traffic (in so called WireShark Trace Files) and she wrote two amazing reports about it (one about Twitter in general and one about TweetDeck). The available trace files will help you to follow her steps of research. Try it yourself! Interesting!

Chappell University Projects Page

#Ubuntu as #PPP #dialin server with a #modem

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Imagine: You’re runing an Ubuntu box with a modem connected to it. You don’t want to use it for dialing out to the internet (that’s how it was done last millennium), but you want to set it up as a dial-in server. It’s strange, but most of the online manuals I found don’t cover this, so I will.

You need to configure a PPP dialin server and we’ll do exactly that in the next few steps:

  1. You need mgetty. Install mgetty by using the following command:

    sudo apt-get install mgetty

  2. Copy /etc/event.d/tty1 to /etc/event.d/ttyS0 (ttyS0 = COM1; ttyS1 = COM2 etc). The last line of /etc/ttyS0 contains a line that goes like:

    exec /sbin/getty 38400 tty1

    Change it, so it says:

    exec /sbin/mgetty -s 57600 -D /dev/ttyS0

  3. If you have an /etc/ppp/options, back it up by using the following command:

    sudo mv /etc/ppp/options /etc/ppp/options.bak

    and make sure /etc/ppp/options looks like this:

    lock
    10.0.0.1:10.0.0.2 #The first address is the address you can use to access your server and the second address is the one that is asigne to your PC after the connection comes up

  4. Make sure to create an /etc/ppp/options.ttyS0 with the following content:

    10.0.0.1:10.0.0.2

    That’s it. Nearly done.

  5. The last thing on our list is to define dialin users in /etc/ppp/pap-secrets. Remember: this file is (or should be) protected. Use:

    sudo nano -w /etc/ppp/pap-secrets

    to change it. Make sure it has the following line somewhere:

    user        *        password        *

    Example:

    johndoe        *        secret        *

Done! Let me know if it worked for you.