Making backups of virtual machines running on Azure using snapshot technology is a nice feature. But sometimes you don’t want to revert the whole snapshot but only want to restore a single file. Now this is possible. It uses the same backup/Snapshot technology you probably are already using. Open theRead More →
For my work I often deploy Linux VM’s. I use Lynis for checking my system for security isssues en baseline(s). Lynis is a security auditing tool for UNIX derivatives like Linux, macOS, BSD, Solaris, AIX, and others. It performs an in-depth security scan. Extensive reports in HTML and TXT areRead More →
In this post I will describe how to configure the basic Linux firewall IPTABLES. Using iptables you can easily protect your server from intruders. Nowadays many people are hosting virtual machines on Linux (for example for hosting purposes). Ofcourse you can configure an external firewall, but you can also useRead More →
Today a customer requested to upgrade the amount of memory on their XenServers. This is how you easily can determine which memory modules are being used. Ofcourse you can use ILO, but then you only see the size and location but not the specific type of (memory) module : ThisRead More →
Some days ago a friend of mine asked me how it’s possible to update the PHP version to the latest stable build. Updating using the regular (web) interface didn’t seem to work… This is how you do that : add-apt-repository ppa:onderj/php5 apt-get update apt-get install php5 [stextbox id=”warning”]After thisRead More →
After installing CentOs you might notice that the eth0 network card interface isn’t working in some cases. Here is how to fix this : You need to edit (nano) two files : /etc/sysconfig/network (check networking=0) /etc/sysconfig/network-scripts/ifcfg-eth0 (set IP address and boot=on) After this you can install VMware tools also. (CheckRead More →
This is how you install VMware Tools on CentOs : mkdir /media/cdrom mount /dev/cdrom /media/cdrom cd /tmp tar –xf /media/cdrom/VM* cd vm* ./vmware-install.pl Now reboot your system rm -r /tmp/vmware-tools-distrib Technorati Tags: Linux,VMwareRead More →