Omar Gallaga explains what journalists are getting wrong about the latest GamerGate scandal, bumpers for your iPhone, Tesla saves a life, a look at the other side of the SXSW scandal, and more...

Host: Megan Morrone

Guest: Omar Gallaga

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Nexus 6P, Martian Watches, Microsoft Band, Surface Book, and SlimPort Nano Console.

Host: Fr. Robert Ballecer, SJ

Guests: Leo Laporte, Jason Howell, and Megan Morrone

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New York Broadband investigation, Stingrays voice capture, Google to merge Chrome OS into Android, CISA, and the saga of the "Karma On".

Hosts: Fr. Robert Ballecer, SJ, Brian Chee, and Curtis Franklin

Guests: Daniel Ayoub and Steven van Wel

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Google Books is legal after 10 years, new DMCA rules for copyright, using DNA to store information, and more!

Hosts: Denise Howell and Sarah Hinchliff Pearson

Guests: Nina Paley and Jorge Roig

Photo credit: Gido

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Twitch expands beyond gaming streams, Apple is working on a way to charge its Pencil stylus, Google plans to combine Chrome and Android, and more...

Host: Mike Elgan

Co-Host: Christina Warren

Guests: Kellen Barranger and Dean Takahashi

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Scott talks with headphone maven Tyll Hertsens about the Big Sound Headphone Face Off.

Host: Scott Wilkinson

Guest: Tyll Hertsens

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Georgia Dow is here to explain the psychology behind online harassment, Android eats Chrome, Microsoft recommends Windows 10, Google can make people you hate disappear.

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Guest: Georgia Dow

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The "Man-in-the-middle" attack known as "Stingrays" are back in the news, what is NMAP and how to use it, Blackhat Uconnect hack, and community questions.

What is NMAP?

nmap is an open source network tool/port scanner that can scan everything from a large network to a single host

• It uses raw IP packets to let us know what hosts are availible on a network, what ports they have open, what OS they are running and dozens of other parameters available to those who are willing to dive into the network protocols

Where to get NMAP?

Quick Notes:

1. When you install NMAP on Windows, its going to install "WinPcap" service (Windows Packet Capture) service
   • Allow the install and let it run on startup.
2. I'm running all these commands in a shell that has root
3. There's a GUI, but I prefer the command line

Basic Commands:

1. Discover all IPs in a subnet -- "nmap -sP x.x.x.x/y" (This is a "ping scan")
   • Where 'x.x.x.x' is the IPv4 address of the subnet you want to scan
   • Where 'y' is the size of your address space
     • For example: If I use "ipconfig /all" to determine that I have an address of 192.168.0.76 and a mask of 255.255.255.0
     • I know my subnet is 192.168.0.0
     • My subnet size is /24
     • so I would use the command "nmap -sP 192.168.0.0/24"
   • You can also use wildcards and ranges
     • Ex: "nmap 192.168.1.1-50" or "nmap 192.168.1"
   • This tells nmap to send a ICMP echo request to ports 443, and 80 to all addresses within the specified subnet.
     • This only gives us a list of devices that respond to that request
     • NOTE: Just because a device doesn't respond, that doesn't mean it's not there.
2. Identify Hostnames
   • "nmap -sL x.x.x.x/y"
     • This will send a packet to all the hosts in the range and return their reported network names
3. Identify the Operating System
   • "nmap -O x.x.x.x" * This will attempt to identify the OS of the host 3. Scanning for Open Ports on a specific host
   • "nmap x.x.x.x"
   • This will look at a specific host and tell you what ports are open on that host
4. Show Host Interface and Routes
   • "nmap --iflist"
5. Verbose!
   • Add "-v" to find out what's happening
6. Saving your scan to a text file
   • "nmap 'whatever you choose to do' > output.txt"

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