• UncategorizedLinux_file_system_structure_namhuy

    Linux file system structure

    Linux Operating System and Linux File System are totally different from Microsoft Windows. In Microsoft Windows, you usually see Windows is installed in C:\ drive. In Linux, the Filesystem Hierarchy Standard (FHS) defines the structure of file systems on Linux and other UNIX-like operating systems, everything is configured as a file including directories, partitions, and hardware device drivers. All files…

  • CentOSopenvpn-logo

    How to install OpenVPN Access Server OpenVPN-AS on CentOS 6

    OpenVPN is an open source software which let you tunnel any IP subnetwork or virtual ethernet adapter over a single UDP or TCP port. Similar to Microsoft’s VPN protocol, OpenVPN also supports L2TP/IPsec and SSTP (many VPN businesses still using old flawed PPTP protocol). OpenVPN comes with two versions Access Server and community version. There are few differences between OpenVPN…

  • CentOS

    How to install fail2ban on CentOS 6 and 7

    I will show you how to install fail2ban on centos 6 and centos 7 to protect SSH brute force attacks. There are many ways to protect SSH server, the best way is to use ssh-keys authentication rather than regular password authentication. I have also written a long detailed article How to install, config and secure openssh server. In that article I have shown…

  • CentOSnamhuy_nginx_epel

    How to install LEMP web server with Nginx, PHP-FPM 5.6, MySQL 5.5 on Centos 7

    Nginx is one of the most popular web server widely used by many popular websites like facebook, intel, cloudflare, hulu, netflix, dropbox, and more. Unlike Apache web server, nginx is a very light weight web server and proxy server yet comes with the same or even better features. Nginx does not create new process for each http request like Apache…

  • Uncategorized

    How to install Webmin on CentOS 7

    I have upgraded some of my systems from Centos 6 to Centos 7. There are many new features in Centos 7 that Centos 6 does not have, but the way Centos 7 work is sort of different from Centos 6. Back to our topic, I’m going to show you how to install Webmin on Centos 7 / RHEL 7. Webmin is…

  • CentOS

    How to upgrade from CentOS 6 to 7

    CentOS 7 was released few months ago which I was very excited, but I have been waiting for a while for bugs fixing. Usually when any Linux distro is released, they usually comes with unknow bugs which may break your system. CentOS is always my favorite linux distro since it’s a very stable distro, and CentOS is basically RHEL (Red…

  • Securityhttps_nginx_namhuy

    How to create and install self-signed SSL certificate on Nginx in CentOS 6

    Google starts to love https from months back and recommends all websites to be encrypted with SSL over HTTP. Rumor said google gives higher rank to those websites have https than websites without ssl. If you have budget, go ahead and buy signed certificates comodo, geotrust, thawte, godaddy, symantec, etc… If you just want to have SSL for testing servers…

  • Xubuntu

    How to upgrade xfce 4.10 to 4.12 in xubuntu

    In this tutorial I will show you how to upgrade from xfce 4.10 to xfce 4.12 in Xubuntu 14.04 and Xubuntu 14.10. What is xfce? Xfce is a lightweight desktop environment for Linux, Solaris, and BSD. Xfce is always my favorite GUI (Graphical user interface) since it has what I need without being too bloated with what I don’t need. I’m kind…

  • Ubuntu

    How to install VNC Server on Ubuntu 15.10

    I have written several tutorials how to install VNC Server on Ubuntu but they are quite outdated. As of right now the current newest version of Ubuntu is 15.10 Wily Werewolf, I’m going to show you how to install VNC Server on Ubuntu 15.10 in this tutorial. I’m using fresh install Ubuntu 15.10 64-bit server version, as Ubuntu server does not…

  • CentOS

    How to install LEMP Server (Nginx 1.8, MariaDB 10.1, PHP-FPM 7) on CentOS 7

    LEMP stacks are an open source platform for applications that is compatible with the LAMP (refers to a Linux-based operating system, the Apache web server, the MySQL database server, and the PHP programming language). LEMP replaces Apache with Nginx which is  light-weight and its ability to scale easily on minimal hardware. This tutorial (How to install LEMP Server (Nginx 1.8,…

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