Mikrotik port mapping/forwarding

If you would like to direct requests for a certain port to an internal machine (sometimes called opening a port, port mapping), you can do it like this:

/ip firewall nat add chain=dstnat dst-port=1234 action=dst-nat protocol=tcp to-address=192.168.1.1 to-port=1234

This rule translates to: when an incoming connection requests TCP port 1234, use the DST-NAT action and redirect it to local address 192.168.1.1 and the port 1234 Continue reading Mikrotik port mapping/forwarding

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Benchmarking InnoDB page compression performance

InnoDB page compression is a feature that really interests me. I wrote this about it recently when describing how to improve the performance of large tables in MySQL:

“Use innodb page compression. For some workloads (particularly those with lots of char/varchar/text data types) compression will allow the data to be more compact, stretching out that performance curve for longer. It may also allow you to more easily justify SSDs which are typically smaller in capacity. InnoDB page compression was improved a lot in MySQL 5.6, courtesy of Facebook providing a series of patches.”

Continue reading Benchmarking InnoDB page compression performance

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Bad news: 10% worse battery life on Samsung Galaxy S7 and S7 Edge after Android 7.0 Nougat update

The Samsung Galaxy S7 and S7 Edge are two of the most popular Android phones out there, and now, they are getting updated to the latest version of the Android operating system: Android 7.0 Nougat.

Along with all the great new features and improvements, there was one key aspect of the experience that we wanted to test: battery life.
The Galaxy S7 and S7 Edge have traditionally delivered a very good battery life, easily lasting through a full day even when you use your phone a lot. The S7 Edge with its massive 3,600 mAh battery in particular delivered excellent battery life.
So has battery life changed with Android 7.0 Nougat?

Continue reading Bad news: 10% worse battery life on Samsung Galaxy S7 and S7 Edge after Android 7.0 Nougat update

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Galaxy S7 finally receives its Android 7.0 Nougat upgrade

The launch follows a beta testing period that allowed existing Galaxy S7 series owners to test the software and help Samsung iron out existing bugs. A few weeks ago, Samsung did confirm that the Nougat update will roll out in January, with January 17th being the rumored date for it. Continue reading Galaxy S7 finally receives its Android 7.0 Nougat upgrade

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The 9 most expensive smartphones you can buy right now

The top-end premium offerings from the likes of Samsung and Apple are great and all, but millions of other people have those.

If you have more money than there are people in your country, then you’re probably looking for a phone that only you and maybe a few of your rich pals own to differentiate yourself from the great unwashed masses.

Unfortunately for the insanely rich Apple fanboys out there, these phones run on the Android operating system, as Apple doesn’t let other phone makers use iOS.

Funny enough, most of these smartphones have the same specs as the normal phones that we, the hoi polloi, use. At the same time, some of them come with special exclusive features. Others just look pretty.

Maybe enough leather and diamonds will help you look past the normal specs on some of these models. Check out the most luxurious and expensive smartphones you can buy:

Continue reading The 9 most expensive smartphones you can buy right now

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