I come to a request to capture all out-going network connections to be sure no sensitive data will be transferred outside by any current scripts. We do all know that there is a simple tcpdump tool that can do this requirement. So in this short entry, I will note necessary commands to do that. To…
HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP. HHVM uses a just-in-time (JIT) compilation approach to achieve superior performance while maintaining the development flexibility that PHP provides. This tutorial guides how to set up Nginx, HHVM, and Percona for Laravel Projects on Ubuntu. First, we need to update system and install essentials (and remove…
In XenServer versions 6.x, the direct GUI ability to auto-start a Virtual Machine on the startup of XenServer was removed. This tutorial guide on How to Setup Auto-Start Virtual Machines in XenServer 6.x. Setting the XenServer to allow Auto-Start Gather the UUID’s of the pools you wish to auto-start. To get the list of the pool’s…
Early this year, a new cloud service provider, Vultr, has been announced. Some people call this service as a “Digital Ocean killer”. Vult has been provided the same specs with DigitalOcean with more modern CPU and better price (Vultr provides a cloud KVM with 768M with $5 vs 512M with DigitalOcean). Main features are: 12 worldwide…
Website redirect based on location scenario : You have many websites targeting for different user countries. For example: vn.domain.com for Vietnamese users, us.domain.com for US users. You want to allow your users to browse your website as fast as possible, and you have 1 server in Vietnam, 1 server in US, 1 server in UK. These servers…
These days I have been working with many Proxmox Containers for virtualization, both OpenVZ and KVM. When running some CentOS VM inside containers, I faced the problem of internet connection when assigning IPs to VMs. After resolving the issue, I would like to take some notes regarding how to fix the problem of Promox VM cannot connect…
