Blog by Jay Mutkawoa (Nitin)

Counter DNS Attack: Enabling DNSSEC

Post Author By Nitin J Mutkawoa
Post Date July 23, 2016
Post Comment 0 comments

To reach another person on the Internet you have to type an address into your computer – a name or a number. That address has to be unique so computers know where to find each other. ICANN coordinates these unique [Read More…]

Linux Application Linux System Security

HTTPoxy – Is your nginx affected?

Post Author By Nitin J Mutkawoa
Post Date July 20, 2016
Post Comment 0 comments

httpoxy is a set of vulnerabilities that affect application code running in CGI, or CGI-like environments. It comes down to a simple namespace conflict: RFC 3875 (CGI) puts the HTTP Proxy header from a request into the environment variables as [Read More…]

Linux Application Security

DDOS attack on WordPress xmlrpc.php solved using Fail2Ban

Post Author By Nitin J Mutkawoa
Post Date July 20, 2016
Post Comment 0 comments

Several types of attack can be launched against WordPress website such as unwanted Bots, SSH Bot requests, unwanted Crawlers etc.. Some times back, i noticed that there were several attempts to perform a DDOS attack on a WordPress website by [Read More…]

Networking and Hardware Security

Tunnelix.com is now IPv6 ready! Are you?

Post Author By Nitin J Mutkawoa
Post Date July 17, 2016
Post Comment 0 comments

Validated by IPV6-test.com, Tunnelix.com is now IPV6 ready. Woohoo.. I now have the IPv6 validation button 🙂 Can you spot it? So, what is exactly IPV6-test.com? IPv6-test.com is a free service that checks your IPv6 and IPv4 connectivity and speed. Diagnose [Read More…]

Database Systems Linux System

Messing around PL/Tcl on PostgreSQL

Post Author By Nitin J Mutkawoa
Post Date July 4, 2016
Post Comment 0 comments

Some days back, i was having an issue whilst activating the PL/Tcl extension/language on PostgreSQL. Luckily, it was possible with the help from Mauricio Cortes, a guy from the Facebook group PostgreSQL Server. Let’s first see what is TCL package. “PL/Tcl [Read More…]

Linux System

Overlay Union Filesystems in Linux

Returning to the world of blogging after nearly a month’s hiatus, I find myself intrigued by the concept of Overlay Filesystems. This article has piqued my curiosity, and I am convinced it will offer valuable insights for my future endeavors. [Read More…]

Posted on February 18, 2024February 18, 2024 by Nitin J Mutkawoa

Uncategorized AKA Non-Tech-Stuffs

My indoor plants in Winter 2024

I used to have a cool indoor greenhouse in my living room growing lettuce, arugula, and thyme. However, since I work from home most of the time and need a dedicated office space, I decided to make some changes. I [Read More…]

Posted on January 19, 2024 by Nitin J Mutkawoa

Cloud Computing

Playing around with SSM, Tags, and Resource Group in AWS

AWS Systems Manager is a service provided by Amazon Web Services (AWS) that helps you automate and manage your infrastructure at scale. It provides a unified user interface so that you can view operational data from multiple AWS services and [Read More…]

Posted on January 18, 2024 by Nitin J Mutkawoa

Blockchain and Fintech

Smart Contracts and Tokens in Ethereum

Smart contracts in Ethereum are self-executing contracts with the terms of the agreement directly written into code. They are computer programs that run on the Ethereum blockchain and automatically enforce the rules and conditions defined within their code. If you [Read More…]

Posted on January 17, 2024January 18, 2024 by Nitin J Mutkawoa

Blockchain and Fintech

Ethereum, Solidity and Decentralization

Ethereum can be considered a technology that is more capable than Bitcoin. In a traditional Blockchain technology like Bitcoin, I mentioned how Bitcoin is mostly focused on a ledger system with records and algorithms backing up the transactions. But Ethereum [Read More…]

Posted on January 16, 2024 by Nitin J Mutkawoa

Blockchain and Fintech

Proof of Stake in Blockchain

In some of my previous articles, I wrote about the Consensus protocol. If you had been following closely, you would have come across the term several times. I explained how Consensus is a mechanism by which participants in a distributed [Read More…]

Posted on January 15, 2024 by Nitin J Mutkawoa