tutorials

innodb_flush_log_at_timeout in 5.6

Submitted by Webmaster on September 15, 2014

A setting that isn't used much but could be used more is innodb_flush_log_at_timeout, which controls how often InnoDB does an fsync from the OS buffer to disk. Here's how it interacts with innodb_flush_log_at_trx_commit.

Category:

Database Management Systems > MySQL > Administration

Tags:

mysql performance tuning

Quick, passwordless login using SSH

Submitted by Webmaster on May 01, 2014

There are two parts to this tutorial. In the first one, I am going to show how to login to a remote server without using a password (when you normally do need a password to login). Secondly, I am also going to show you how to setup SSH on your local machine so that you can use short aliases to connect to remote machines. I have successfully used these techniques on Linux and Mac OS X for the past year or so.

Category:

Tools > Security > Tips and Tricks

Tags:

linux security macosx ssh passwordless config

How to setup Spamassasin to run as a deamon

Submitted by Webmaster on October 31, 2013

SpamAssasin is perhaps the most powerful spam filter out there and many companies and projects are using it on a regular basis. In this tutorial, I am going to explain you how to run SpamAssasin as a daemon and use spamc program to check for spam in email's content.

Category:

Tools > Security > Administration

Tags:

linux security opensource spam spamassasin

Starting with Git - Setting up remote environment for Git

Submitted by Webmaster on June 08, 2013

In the tutorial, I will discuss the setup and configuration for remote and local Git repositories using SSH to transfer files between server and client. I used a Linux based server and a Mac OS X client for development but steps should work on similar environments supporting SSH.

Category:

Tools > Development > Configuration

Tags:

security development git version-control ssh remote

How to SSH into EC2 instance without identity file and password

Submitted by Webmaster on May 27, 2013

I had to type in the location and name of my identity file and a long string of username@hostname anytime I'd try to SSH into my Amazon EC2 instance for administration. I found an easy solution that I am sharing with you here.

Category:

Operating Systems > MacOS X > Tips and Tricks

Tags:

security macosx amazon ssh aws ec2 passwordless

Is MySQL 5.6 slower than MySQL 5.5? No, it's faster

Submitted by Webmaster on February 22, 2013

MySQL 5.6 is believed to be the best MySQL release ever. In order to find out if it is true or not I ran some benchmarks and I am going to share the results with you in this tutorial. Please note that I only tested with default settings (in both cases) and using sysbench as a benchmarking tool, so its a pretty basic test. I highly recommend that you test on your particular workload before upgrading and share your results.

Category:

Database Management Systems > MySQL > Tips and Tricks

Tags:

performance optimization benchmark mysql5.5 mysql5.6 sysbench compare

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