Author Archive: Mihajlo Milenovic

Miki is a long time GNU/Linux user, Free Software advocate and a freelance system administrator from Serbia. Got introduced to GNU/Linux in year 2003 on old AMD Duron computer, and since than always eager to learn new stuff about this system. From 2016 writes for Linoxide to share his experiences with wider audience

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How to Configure Mariadb Maxscale Master-Slave with Galera Cluster

In this article we will install MariaDB galera cluster with MaxScale proxy database by MariaDB corporation. MaxScale is inteligent proxy database that can route database statements from cluster to one server. But unlike HAproxy, MaxScale uses asynchronius I/O of the Linux kernel  which should help with performance. Cluster we are going to make will have […]

Posted on : November 22, 2016 , Last Updated on : November 22, 2016 By
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How Install Microsoft SQL Server on Ubuntu / RHEL / Centos / Docker

So that day have come now, MSFT has to port their software to Linux in order to stay relevant. MS SQL Server preview have come out and it is supported on Ubuntu, CentOS, RHEL  and Docker container. In this article, we are going to walk through how to install Microsoft SQL Server on linux platforms […]

Posted on : November 19, 2016 , Last Updated on : June 21, 2017 By
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Reviewing Docker Alternative with Options for Clustering Technologies

Docker is great peace of software, but Free Software world doesn't tolerate mono-cultures. Whenever some piece of software gets popular, the alternatives show up and each of them makes its own design changes in order to fill different niches. Containers are no exception. First there was LXC and OpenVZ, then Docker shown up, then CoreOS […]

Posted on : November 14, 2016 By in TRENDING
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Setup Hot Backups of MySQL with Percona Xtrabackup on Ubuntu

When backing up a database, you generally don't want to stop the database. Because if you stop it, your application will become unavailable. But if you do not stop it, your backup might end up inconsistent and useless, due to half done transactions being backed up. Percona have come up with good solution for incremental […]

Posted on : November 10, 2016 , Last Updated on : November 16, 2016 By
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How to Setup Minecraft Multiplayer Server on Ubuntu 16.04

Minecraft is very popular sandbox game that is played by kids and grownups across entire globe. In this article we will show how to install a Minecraft server to play Minecraft with your friends in your own virtual world. You would need to buy the Minecraft game, to play it, and your friends will need […]

Posted on : November 8, 2016 , Last Updated on : November 7, 2016 By in UBUNTU HOWTO
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How to Setup VNC Server on Ubuntu 16.10 with ssh Tunneling

Traditional way to administer server is over ssh and command line. But sometimes you need to run some application with a GUI on a server, and since you typically don't sit next to server and even if you do, server might not have monitor and keyboard, you need some sort of remote desktop. VNC is […]

Posted on : November 7, 2016 , Last Updated on : November 7, 2016 By in UBUNTU HOWTO
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How to Setup CouchDB Replication on Ubuntu 16

In today article we will set up CouchDB replication on Ubuntu 16.10. CouchDB is NoSQL database much similar to cassandra we wrote about earlier. Rather than Cassandra's Java, CouchDB is written Erlang and it is Apache Software Foundation project since 2008. This database is document oriented, not unlike MongoDB. For this tutorial, you need two nodes running Ubuntu […]

Posted on : November 4, 2016 By
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How to Setup lsyncd for Synchronize Directories to Remote Computers

If you want some directory of yours actively backed after every change, they are a lot of sync options to choose from. Software like csync, rsync, csync2, lsyncd and many others will all do the job, but in this article we will only review one of them. We will introduce features of lsyncd, a synchronization […]

Posted on : November 3, 2016 By in LINUX HOWTO
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How to Setup Percona Cluster with HAproxy Loadbalancer on CentOS 7

We earlier shown how to setup MariaDB Galera cluster with HAproxy, and today we will do the similar setup with Percona's distribution of MySQL. Percona is the company that has deep expertise with MySQL and MongoDB, and they make their own distributions of those databases as well as storage engines for both databases. Today we will […]

Posted on : November 1, 2016 , Last Updated on : November 1, 2016 By in LINUX HOWTO
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How to Setup MariaDB Galera Cluster with HAproxy on CentOS 7

In todays article we will install MariaDB Galera cluster with HAproxy for load balanced MariaDB and wordpress. Galera is active-active clustering technology, meaning that it can support writes on all nodes which are then replicated across cluster. There is also active-passive clustering, where only node is writable. We will also install HAproxy for load balancing […]

Posted on : October 28, 2016 , Last Updated on : November 19, 2016 By
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An UFW Firewall Guide to Enable, Deny, Allow, Delete Rules on Ubuntu

Firewall is important security component of every operating system.  Linux kernel has great packet filtering and port filtering framework which is called Netfilter. To have a complete firewall, the userspace command line frontends have been created. Most well known framework for managing Netfilter framework is iptables. However, some users find it too hard to master which […]

Posted on : October 27, 2016 , Last Updated on : October 27, 2016 By in UBUNTU HOWTO
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How to Install and Manage Snap Packages on Ubuntu 16.10

Advanced packaging tool, known for acronym apt, have been used in Debian and derivatives for nearly two decades. Similarly on Red Hat based systems, the RPM is used for even longer. To fix shortcomings with this packaging system, AppImage, FlatPak and Snap have been created by various groups and companies.  Those packaging systems don't conflict with apt, nor rpm, […]

Posted on : October 25, 2016 , Last Updated on : October 24, 2016 By
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Best Tools to Make Animated GIF in Linux Systems

Animated GIF images have become an art of its own, with funny scenes and memes flooding the internet. Animated GIFs are also useful to us geeks, for example for showing interactive terminal output. When there is not enough content to warrant entire video but you still need moving picture, animated GIF is what you need. […]

Posted on : October 21, 2016 , Last Updated on : June 20, 2017 By
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How to Setup Ports Collection on FreeBSD 11.0

FreeBSD operating system can use binary packages with pkg utility,  but for for some ocassion, like running newest versions of the code, you would want to compile some programs.  For that, there is very useful ports collection that simplifies compilation process. In this article we will install and use ports collection to update the Freebsd […]

Posted on : October 18, 2016 , Last Updated on : October 18, 2016 By
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