Linux RAID Mdadm Cheat Sheet
Mdadm is the modern tool most Linux distributions use these days to manage software RAID arrays; in the past raidtools was the tool we have used for this. This cheat sheet will show the most common usages of mdadm to manage software raid arrays; it assumes you …Read More
Installing Lighttpd with PHP (PHP-FPM mode) and MySQL or MariaDB on Ubuntu 15.04
Lighttpd is a secure, fast, standards-compliant web server designed for speed-critical environments. This tutorial shows how you can install Lighttpd on an Ubuntu 15.04 server with PHP support (through PHP-FPM) and MySQL. PHP-FPM (FastCGI Process Manager) is an …Read More
Upgrading MySQL databases after a software update (and possibly repairing structure and tables if problems occurs)
Sometimes MySQL changes its internal database structures between versions. When that is the case, you might get these kind of errors after updating it (probably via yum) and trying to start it:
[ERROR] Missing system table …Read More
Messing around with FreeBSD 10 lately I loved ZFS, its simplicity and expand-ability. So I thought, what about a Linux with ZFS ? I’ll write about How to Setup ZFS Filesystem on Linux with zpool Command Examples in here.
ZFS has combined volume manager and filesystem with several advanced features.
This is the …Read More
Setting up Apache Solr 5 on Centos for use with Drupal
As of this writing, the latest version of Solr is 5.3.0. I used this version but I assume that will work on any version 5.x and up. In this step by step guide we will install that version and integrate …Read More
Perhaps you’ve been charged with developing a container-based application infrastructure? If so, you most likely understand the value that containers can provide to your developers, architects, and operations team. In fact, you’ve likely been reading up on containers and are excited about exploring the technology in more detail. However, before …Read More
Install and Configure CSF ConfigServer Firewall
About CSF Firewall
ConfigServer Security and Firewall, also known as CSF, is an opensource software firewall application. It is working based on iptables. Firewall configuration script created to provide better security for your server while giving you an easy to use, advanced interface for managing your firewall …Read More
Setting up PPTP VPN server on CentOS Server
There are 3 basic types of VPN servers: Point-to-Point Tunneling Protocol (PPTP), Layer 2 Tunneling Protocol(L2TP) and OpenVPN. (Yeah there are more but let’s deal with the basics here). In this post I will use PPTP as it’s supported by almost all devices and OSes natively: …Read More
Grab it today. Fedora 22 is out. And just like Fedora 21, it comes now in 3 flavors. Workstation, Server and Cloud.
Download Fedora 22 Workstation
Download Fedora 22 Server
Download Fedora 22 Cloud
The spins have also been released. Spins are alternative desktop environments for Fedora and ready to run mixes like security …Read More
Like in older version of Installing LAMP on Ubuntu 13.xx 14.xx there aren’t any major changes (except if you are using MySQL instead of MariaDB, in that case you change one keyword 🙂 and ofcourse our lovely systemd ) anyway, I will demonstrate the commands and procedures you need to Install LAMP …Read More
Centos Recover broken rpmdb or missing packages
Did you ever encountered broken rpmdb ? Missing packages, filesystem corruption at /var/lib/rpm and ran out of backups or a restore isn’t possible ? You can fix it in Centos Recover broken rpmdb or missing packages and on other RHEL based systems too.
Let’s assume that …Read More
In a previous post I’ve showed how to disable firewalld and roll back to our favorite post-systemd iptables firewall. In this post we gonna see how to Configure FirewallD in RHEL/CentOS 7 and Fedora 21/22.
Firewalld is a dynamic daemon to configure and manage firewalls (iptables rules typically) with support for …Read More