Fix it Felix Jr.! Security network edition!

--Originally published at (Not so) Random talk

Wrecking stuff have always been Ralph’s thing. Ever since his tree stump was moved to the dumpster, he had dedicated himself to wreck the building that was built in his old place. But, whenever Wrack starts wrecking, Felix Jr. has always been there to fix things, thankfully. With his useful hammer, he always fixes the windows and reconstructs the zones Ralph has broken with his big fists. And time and time again, our hero manages to fix everything, get a golden medal, and leave the villain in the mud.

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However, times change. And just when Ralph was resigning himself, some interesting trash got into the dumpster. It was lot of information about networking that the Highlanders decided wasn’t important when setting their new networks. And with it, Ralph also learned how to attack this new thing called network. Yes, Wreck it Ralph is now Wrecking the Network! Now in a hurry, Felix had to learn about security networks and dive into the practice of protecting the usability and integrity of your network and data of the Highlanders. Set into this new adventure with Felix, and fix all the things that Ralph has damaged as well as setting up the new multiple layers of defenses on the network.

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The way of playing in this game is somewhat different that in the other installment. In each level, you must ensure or do activities that conform network security. Earn a certain number of points to advance to the next level. These activities are:

Wireless Security: set up the wireless security for the Highlanders network, which they used to have on default and Its probably one of the ways in which Ralph accessed the network. To do so in a basic level, change the passwords on the modems of the Highlanders.

Network isolation: divide

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Continue reading "Fix it Felix Jr.! Security network edition!"

We don’t need no network control!

--Originally published at The shield of the world

So, today we are going to talk about Network Security. Network security is the process of taking the physical and software preventive measures to protect the networking infrastructure from unauthorized access, malfunction, modification, destruction or improper disclosure, thereby creating a secure platform for computers, users and programs to perform their permitted critical functions in a safe environment.

Which involves the authorization of access to data in a network, which is controlled by the network administrator. Here is were the users choose or are assigned an ID and password or other authentication information that allows them to access to information and program within their authority. Like the accounts in school or work. Here is were you pray for the network admin to be a master in passwords creation, to help you and the network not get unauthorized access. You can see You shall not pass! to know more about.


So why is important to have a secure network? Well that’s quite easy, because you want to avoid:

  • Viruses, worms, Trojan horses… MALWARE (we already talked about that ¡Un pejelagarto se metió a la cocina!)
  • Spyware and adware…which we can considere that Malware too
  • Zero-day attacks, also called zero-hour attacks
  • Hacker attacks (vulnerabilities)
  • Denial of service, YOU ARE THE 1 MILLION VISITOR!
  • Data interception and theft
  • Identity theft


And how do the network admin protector of the planet will fight against that? Easy question too, with some of this tools:

  • Anti-virus and anti-spyware
  • Firewall, to block unauthorized access to your network
  • Intrusion prevention systems (IPS), to identify fast-spreading threats
  • Virtual Private Networks (VPN), to improve secure remote access


But this are not all the tools used to maintain and protect the data and information of a company. A security policy is something really useful for a company and we will talk

Continue reading "We don’t need no network control!"