This quick tutorial will help you reclaim free space on your servers or Xen/KVM VPSes. This post can be considered as a re-post the method from LowEndTalk discussion topic. The source can be found HERE. By default the Ext2/3/4 filesystems are created with a setting to set aside 5% of free space for the root user, not…
This will add a quick note on how to install necessary Hadoop ecosystem by Installing Apache BigTop for Hadoop Development. Remember that we need a 64-bit OS to be able to run Big Data project. First, add a new repo. The latest BigTop repo (0.8.0) is located at http://www.apache.org/dist/bigtop/bigtop-0.8.0/repos/ and we just need to add appropriate repo…
By default, Debian 7 comes with nginx 1.2.x which is a little bit out-dated. This short tutorial will introduce how to upgrade to latest nginx on Debian. First, add necessary wheezy-backports to the sources.list (/etc/apt/sources.list): deb http://ftp.de.debian.org/debian/ wheezy-backports main contrib non-free Then, update with the new source: aptitude update aptitude -t wheezy-backports install nginx That’s all 🙂 Troubleshoots…
All of us internet users might use at least one cloud service. However, do you think one nice day, your cloud service discontinues and all your files gone? Well, let say your Google Email account is terminated and all your documents/files are gone. It is really terrible. So the need of multiple cloud services for redundant…
Today I purchased a new IP block from SoYouStart/OVH and would like to use the whole IP block for VMs. As I did use Proxmox for virtualization, utilizing the whole new IP block is quite easy as soon as every steps are followed. So I would like to note here some necessary steps when adding…
RunAbove is a cloud service launched by OVH. Their VMs are based on SSD and located in both Canada and France. As they are pretty new, they are offering some sweet promotions. Follow the following steps will give you $47 free credit to use their services: Register with the following link will give you $10…
Many of us are using SSL for our sites. However, there is a big chance that we are not installing the SSL certificate to your web server properly. This might lead to some unwanted warning problems in some browsers such as Mozilla Firefox, or Mobile Phone browsers. In this tutorial, I will mention on how…
After installing Proxmox on a fresh Debian following the guide at Proxmox website, many will stuck in the step of “Make sure to select Proxmox VE Kernel on the boot loader (grub2) – Attention: Default is the 3.2 kernel”. The problem is that in many remote dedicated servers, there is no console to select the…
This short tutorial will help you setup your CentOS 7 as a host for KVM virtualization via NAT IP. Using this method, we can install many VMs on CentOS 7 using only 1 IP as we did the same thing with Proxmox before. Preparation for Prerequisite softwares First, check if the current machine support hardware…
Switching from CentOS 6 to CentOS 7 might be a little pain for many users. The main reason is that in CentOS 7, there are several changes which make the end-users feel not comfortable. This quick note will introduce some new way to do some regular commands in CentOS 7. 1. Using systemctl In CentOS 6,…