November 25, 2017

How to Setup the JAVA_HOME Environment Variable on Windows

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This instruction will show you to set up the JAVA_HOME environment variable on Windows. First you have to find the path to the Java development kit (JDK) on your system. Please use this path for the JAVA_HOME environment variable in the last step of this instruction.

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How To Migrate or Backup IMAP Accounts With imapsync on CentOS

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imapsync allows incremental and recursive IMAP transfers from one mailbox to another over the internet or in your local network.
As imapsync is incremental you can stop the transfer at any time and restart it later. The complete folder hierarchy will be copied recursively. Feel free to use this tool for your next IMAP migration or backup.

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How to Install Roundcube Webmail on CentOS

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With Roundcube webmail you will get a full browser-based webmail IMAP client with an application-like user interface. Roundcube webmail runs on a standard PHP/MySQL configuration and provides full functionality you expect from an e-mail client, including MIME support, address book, folder manipulation, message searching and spell checking.

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How to Install Daemontools on FreeBSD

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Daemontools is mainly used for controlling processes, and maintaining logfiles. Daemontools can start services and restart services if they die. All it needs is a directory with a run script that runs the service. Additionally you can save error messages to one or more logs.
This includes timestamps at each line and for each log and it can include or exclude lines matching specified patterns. Also it can automatically rotate logs to limit the amount of disk space used. For more information, please visit Daemontools.

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How to Get an Alert When Your Disk Is Full on Unix, Linux and BSD Systems

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Do you want to get an alert once your disk is full on Unix, Linux or BSD Systems? In this tutorial we will show you to set up a simple cron script which sends you an email once a specific disk limit is reached.
We use the df command which reports the file system disk space usage including the amount of disk space available.

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How to Measure the I/O Read and Disk Performance on FreeBSD

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You want to measure the disk seeks and transfer performance under FreeBSD? With the command diskinfo you can generate simple benchmarks of your disks. This tool will show you basic information about the disk device and runs a simple performance test. Now you can measure the I/O read overhead of any disk or RAID storage.

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How to Install eAccelerator to Optimize PHP Performance on FreeBSD

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With eAccelerator your can increase your PHP performance by up to 1000%. This PHP accelerator caches frequently used portions of PHP files in memory and delivers them with high-speed.
This is useful for high performance websites with loads of traffic.
In this tutorial we show you the steps to install and configure eAccelerator from the FreeBSD ports tree.

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How to Secure Apache With a Free SSL Certificate From StartSSL on CentOS

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Your own web server with an SSL certificate from an approved certificate authority so that the browser also does not cause any warning, that would be a good thing. But only the cost of a certificate from Verisign & Co let you forget those mind games quickly. The provider StartSSL does offer free SSL server certificates that are valid for one year after all. How great is that! In this tutorial we will show you the process of securing your Apache webserver with this free SSL certificate.

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How to Install TeamSpeak 3 Server on FreeBSD

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TeamSpeak is a Voice over IP software that allows to speak on a chat channel with other users, like a telephone conference call. This instruction will tell you how to install the FreeBSD TeamSpeak 3 Server port (audio/teamspeak3-server), for amd64 and i386 architectures.

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How to Join Two CSV Files on Unix, Linux and BSD Systems

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Suppose you have two CSV files and want to join them to one CSV file. For this you need a tool to extract selected fields and combine them to a new file. The tool should also arrange the fields in a specific order. The command-line tool join can do exactly that. In this tutorial we will show you how to join two CSV files.

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