IT Knowledge Base » Internet

dropbox with own encryption (Truecrypt)

admin — Mon, 07 Dec 2009 09:52:33 +0000

Well I do love dropbox but I don’t like to put sensitive data on it because I simply don’t trust other companies taking care of my security. I use a open source program called truecrypt to encrypt my hard drives, usb sticks etc. and it’s doing a great job. After a little research in the Net I found out you can also use it with dropbox. You might think when you create an encrypted container that with each change in it it would transfer the whole file again. Luckily dropbox just transfers the changes instead of the whole file. But I red on somebodies blog that you need to make a small change in truecrypt.

Deactivate in Truecrypt->Settings->Preferences…->Preserve modification timestamp of file containers

How to query mx records in Windows

admin — Wed, 02 Dec 2009 14:25:25 +0000

Open Command Console and type:
nslookup
set type=mx
google.com

Central File Storage and Access it from Iphone and different OS

admin — Mon, 02 Nov 2009 20:33:43 +0000

Today I tested some tools which should make your life much easier. You know the pain when you work with different kind of Operating Systems (Linux, Mac OS, Windows) and you want to access your files from everywhere. Or it could be even on your smartphone device like iphone, blackberry etc. First of all there is dropbox which works pretty much like an remote folder. You can simply drag files into it and you have 2 GB server storage. Another one I tested and I like very much is evernote. You can even just select some text or picture in your browser and upload it to the server. It will be indexed and you can simply search for your files. There is even a OCR recognition for images. But to use this service you just have 50Mb storage per month and afterwards you need to pay for premium account.

Programs can found be here:
www.getdropbox.com
www.evernote.com

SSH Tunneling with MAC OSX (bypass firewall)

admin — Thu, 08 Oct 2009 19:10:32 +0000

If you setup a SSH Server and put all the traffic trough it on port 80 you could bypass most firewalls.

Setup an SSH Server on port 80 and bind it with following command in terminal:
ssh [username]@[domain/ip/host] -p [portnumber] -L [bindingiplocal]:localhost:[bindingipremote]

example:
ssh root@mist.com -p 80 -L 2222:localhost:3389

3389 is used on the remote computer for RDP (Remote Desktop Connection). To connect to it trough the tunnel you need to connect Remote Desktop with following syntax: localhost:2222

commands to Test SMTP Mail Server

admin — Thu, 24 Sep 2009 14:44:57 +0000

With this simple commands you can connect to an smtp server and send an email out. The fat written text needs to be replaced! How you can see from there you can set the mail from parameter. That’s why you can never thrust emails from where they come from. It is easy to fake.

C:> Telnet smtp.server.com 25
helo me
mail from: sender@server.com
rcpt to: receiver@server.com
data
From: sender
To: receiver@server.com
Subject: This is a test.

This is a test blablababa.

quit

Find cheap stuff on eBay because of misspelling

admin — Sun, 05 Jul 2009 22:04:31 +0000

I haven’t really used it but I like the idea and would like to share it with you guys. There is a web-service which is called www.typo-shark.com/ which actually lists all the misspelled auction on ebay with that search word. Because no one else can find the auction you might get lucky.

Find a good Domain Name

admin — Wed, 04 Mar 2009 00:54:50 +0000

If you are searching for a good domain name www.bustaname.com is quite useful. It is by the way the tool I which helped me to find this domain name here;-)

International Phone Calls

admin — Sun, 01 Mar 2009 13:49:40 +0000

Most people have installed Skype but they still don’t know that they actually can call land- and mobile phones. It is even possible to send SMS and Fax over it.
If you use it a lot I would recommend you to get a headset. It is much more convenient to make phone calls over it and the quality is also much better. Now the biggest advantage you get when you make international phone calls. I subscribed to a plan which is around $10 per month and this always you to call international land phones for free. If you should call just for one foreign country you can sign up for a $5 plan. By the way you cancel it any time and you can even get a phone number so people can call you back.

So check it out:
www.skype.com

comparison Social networks

admin — Mon, 23 Feb 2009 13:59:03 +0000

And the winner is?
myspace.com facebook.com orkut.com hi5.com friendster.com

I think most people won’t be surprised that it is Facebook. Myspace is starting to loose users now and many of them you will find in Facebook again. Myspace is more open and used by artists and musicians who are looking for a platform to promote themselves. In the other hand Facebook is used by more individuals or private users who want to keep in touch. Facebook really did a couple of smart moves like one of supporting an API so that developer can build applications and integrate it into the platform. The design can be seen as a little bit boring because there are not many adjustments possible in the current version. Myspace instead can be ‘pimped’ but it is most of the time just overloaded.

temporary email address

admin — Fri, 20 Feb 2009 00:46:50 +0000

If you just need a temporary email address for 24 hours filzmail is a pretty good service. You can receive and send emails from the account.

http://www.filzmail.com/