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Ten Ways To Choose The Right Data Management Tool for Your Needs

How to choose the data management tool you need

Tools for data management are crucial parts of every organization. With the correct tool, you can efficiently and rapidly manage, store, analyze, and use your data in ways that provide valuable insights. But how can you choose the best data management system for your needs when there are so many options on the market today?

This blog post will offer ten suggestions to assist you in selecting the ideal data management technology for your company.

1. Recognize The Various Tools That Are Available

Data management products come in many different varieties nowadays, each with special ...

Basic Website Development Tools Every Blockchain Developer Needs

Developers can choose from many advanced software applications in today’s environment of intensive research on potential uses for blockchain technology. Web development tools include Ethereum DApps Development where researchers and developers strive to build decentralized apps and smart contracts. Smart contracts have the built-in ability to adjust based on changes to key terms and to monitor compliance with the terms of the contract.

Blockchain development tools help to facilitate software development. If a developer is new to blockchain or lacks experience, he or she should become ...

What is a Golden File in software development?

Golden Files to run your test with large input and output dataWhile programming, one of the best thing to do to make sure that your software works as expected is to write tests.

Actually, if you write enough tests to make sure that the code works as expected, it should take you between two and three more time to finish up your project. So if it takes you one day to write a function, it will take you another two days to write good tests for that one function.

Many of those tests, especially as you construct more and more complex software, require large amount of input and output data. It's easy enough to test a function such as strlen(). It has one ...

What is the Significance of Tiny PCBs?

A PCB board with drawings of the wires

It’s a common refrain that our electronics are always getting smaller. While there may be some up-and-down fluctuation between one phone release and the next, the broader trend is clear: From speakers, to laptops, to home appliances, we can pack a lot more power into a lot less space these days.

This trend leads to some near-fantastical speculation about where tech can go from here. For instance, Quartz posted about limits in processing power back in 2017, and speculated that light could be built into processing chips as a substitute for what we’d now think ...

Docker, an advanced chroot utility

Chasm—just like a Docker creates a chasm between two sets of software

SECURITY WARNING

Before installing Docker and containers with services on your Linux system, make sure to read and understand the risks as mentioned on this Docker and iptables page. Especially, Docker will make all your containers visible to the entire world through your Internet connection. This is great if you want to indeed share that service with the rest of the world, it's very dangerous if you are working on that container service since it could have security issues that need patching and such. Docker documents a way to prevent that behavior by adding the following rule to your firewall:

iptables -I DOCKER-USER -i eth0 ! -s 192.168.1.0/24 -j DROP

This means that unless the IP address matches 192.168.1.0/24, the access is refused. The `eth0` interface name should be replaced with the interface name you use as the external ethernet connection. During development, you should always have such a rule.

That has not worked at all for me because my local network includes many other computers on my LAN and this rule blocks them all. So really not a useful idea.

Instead, I created my own entries based on some other characteristics. That includes the following lines in my firewall file:

*filter
:DOCKER-USER - [0:0]

-A DOCKER-USER -j early_forward
-A DOCKER-USER -i eno1 -p tcp -m conntrack --ctorigdstport 80 --ctdir ORIGINAL -j DROP
-A DOCKER-USER -i eno1 -p tcp -m conntrack --ctorigdstport 8080 --ctdir ORIGINAL -j DROP
-A DOCKER-USER -i eno1 -p tcp -m conntrack --ctorigdstport 8081 --ctdir ORIGINAL -j DROP

My early_forward allows my LAN to continue to work. These are my firewall rules that allow my LAN computers to have their traffic forwarded as expected.

Then I have three rules that block port 80, 8080, and 8081 from Docker.

Docker will add new rules that will appear after (albeit not within the DOCKER-USER list) and will open ports for whatever necessary service you install in your Dockers.

Note that the only ports you have to block are ports that Docker will share and that you have otherwise open on your main server. If Docker opens port 5000 and your firewall does not allow connections to port 5000 from the outside, then you're already safe. On my end I have Apache running so as a result I block quite usual HTTP ports from Docker.

Docker

As we are helping various customers, we encounter new technologies.

In the old days, we used chroot to create a separate environment where you could have your own installation and prevent the software from within that environment access to everything on your computer. This is particularly useful for publicly facing services liek Apache, Bind, etc.

Best C++ Books

Once in a while someone will ask me which book is best to start learning programming. The fact is that I do not know because I'm already an advanced programmer and it's rather difficult for me to get back to the basics (it feels like a waste of my time, sorry...)

That being said, at Made to Order Software, we've mainly been a C++ shop. We also do a lot of C, PHP, JavaScript and touch many other languages as required by the tasks we perform (bash, cmake, perl, C#, Java, etc.)

That being said, I wanted to underline some of the best C++ books available today. Especially, in the last ...

Upgrade to PHP 5.3.3 or newer because of security issue

If you are responsible for a Debian or Ubuntu server and run PHP on it, make sure to run the following command to fix several security issues found in PHP:

sudo apt-get install php5-suhosin

This will make the necessary and your PHP version (security wise) will look like you have PHP 5.3.3.

What I found quite annoying in regard to this issue is the fact that it was very difficult to find a mention of this upgrade. All I could find in large number were people saying that you'd have to get an upgrade using the source code of PHP. Somehow, I did not feel like upgrading PHP from ...

What are yellow pages good for?

Since I work a lot with the Internet, I often have people asking me whether the Yellow Pages are still useful...

The fact is, there are still many people using the Yellow Pages. Most advanced geek will use an online directory such as superpages.com. Yet, for certain things such as looking for a plumber, people still use the Yellow Pages.

So, how do I choose whether to have an ad in the Yellow Pages?

Simple! Take the latest Yellow Pages book you've received and look under your category and see what your competition does. If you have 1 or more full page advertiser, you bet that you have ...

Creating Groups with Taxonomy VTN

Taxonomy VTN adds many fields in your taxonomy forms. When editing your taxonomy, one field is called Taxonomy VTN Group. This field is used to group different vocabularies (i.e. taxonomies) together in a group.

Screenshot of Taxonomy VTN Group setup field. Click to enlarge.The field accepts one or more group names. The names are case insensitive and are separated by commas. For instance, you could have three names such as: Kitchen, Utensils, Stainless Steel. Then another vocabulary could mention Kitchen and yet another Utensils, Wood.

The groups change the display in the Taxonomy VTN root page. A specific group can also be accessed using the URL:

odbcpp, a simple C++ library to access ODBC

$395.00

Representation of an ODBC Database

odbcpp is a strong C++ wrapper for ODBC.

 

The ODBC library is an interesting concept created by Microsoft in 1988. It is a library that wraps the implementation details of database managers inside drivers. And these drivers are accessible from the library.

One of the main problem with accessing any database system, is the large number of ...

$395.00