Protect yourself from “Bad Rabbit”

Have a look at these links:

https://www.windowscentral.com/new-bad-rabbit-ransomware-attack-spreading-across-europe

https://www.sfimg.com/forum/thread?id=104499&pg=2

https://community.spiceworks.com/topic/2076082-new-ransomware-bad-rabbit-seen-going-through-europe?page=2#entry-7322578
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General Purpose Fan

I recently came across a situation where I needed a USB powered fan to cool an electronic device. The Online search began, but resulted in many high priced products.

I stumbled upon this link which described how to convert a normal PC Cabinet fan into a USB powered fan.

http://www.instructables.com/id/How-To-Convert-A-Case-Fan-To-USB/

Hope it helps!

Perl Scripting Tips

Now if you are writing scripts with Perl and come from a C or C++ programming background, one of the first things you would want to know is Multiline comment. Well its simple, as shown below.

=begin comment

<your script>

=end comment

=cut

The next thing I wanted to work on was to read a file or paragraph line by line and search for the presence of a string in any line. Here’s how to go about it.

#$obj has the set of lines to be parsed

foreach my $resultline (split /^/m, $obj) {

#$resultline has a line currently being read, $str has to be searched in this line

if (index ($resultline, $str) != 1) {

<Your action>

}

}

 

Reference:

 

 

Using WiFi at Work

Assuming you have WiFi at work, most of us login using our company credentials. Android being Android, does provide all the commercial and domestic WiFi connection options. I came across a link which helps you setup WiFi on your Android device using your company login.

http://www.ntu.edu.sg/cits/itnetworking/NTUwireless/Pages/Android(NTUSECURE).aspx

Types of ARP

Have you always wondered what are the different types of Address Resolution Protocols available on a network? Well there are five of them

  • ARP
  • G-ARP
  • InARP
  • RARP
  • ProxyARP

The below two links explain them very well. Do have a look.

http://sumankedala.blogspot.in/2011/06/types-of-arp.html
http://www.happyrouter.com/whats-the-difference-between-arp-reverse-arp-inverse-arp