This tutorial will show you how to backup your ESXi VMs using a free solution - ghettoVCB.
I'm using it on ESXi hosts that store the VMs locally.
The script is not interactive and can be setup as a cron job.

Here is the script philosophy:
- it takes snapshots of live …

VMware (ESXi 5.1) only supports NFS version 3 over TCP/IP

Setup NFS Server behind a firewall:
- rpcbind (portmapper) listens on port 111 (default)
- mountd binds to port 32767 (custom)
- nfsd listens on port 2049 (default)
- statd binds to port 32765 for incoming requests and it must answer on …

This little tutorial should be applied only if you're running an ESXi 5.1 host with more than 32GB RAM.
If you're having less than 32GB RAM, you should use the Free License provided by VMware.

Starting with VMware vSphere Hypervisor 5.5, the limitation of 32GB RAM per server …

2 x Data Nodes - data01, data02
2 x MySQL Nodes - mysql01, mysql02
1 x Management Node - mgm

Data Nodes
[cc lang='bash']
\$ apt-get install libaio1 -y
\$ wget http://dev.mysql.com/get/Downloads/MySQL-Cluster-7.3/mysql-cluster-gpl-7.3.2-debian6.0-x86_64.deb/from/http://cdn.mysql.com/ -O mysql-cluster-gpl-7.3.2-debian6.0-x86_64 …

A cluster consists of one or more nodes which share the same cluster name. Each cluster has a single master node which is chosen automatically by the cluster and which can be replaced if the current master node fails.

A node is a running instance of elasticsearch which belongs to …

Login to AWS Management Console, create new EBS Volume and attach it to the instance as /dev/sdf (the instance will see the new volume as /dev/xvdf).

[cc lang='bash']
\$ fdisk /dev/xvdf
# primary partition /dev/xvdf1
# type Linux LVM (8e)

\$ pvcreate /dev/xvdf1
\$ vgcreate VG-IMG /dev/xvdf1
\$ lvcreate …

[cc lang='bash']
# create ext4 fs on /dev/sdb1
\$ mkfs.ext4 /dev/sdb1
# enable writeback mode, this mode will typically provide the best ext4 performance
\$ tune2fs -o journal_data_writeback /dev/sdb1
# delete has_journal option
\$ tune2fs -O \^has_journal /dev/sdb1
# required fsck
\$ e2fsck -f /dev/sdb1
# check fs options
\$ dumpe2fs /dev/sdb1 …

Log Server
[cc lang='bash']
# prerequisites
\$ apt-get install default-jre-headless curl -y
\$ echo -e "root hard nofile 1024000\nroot soft nofile 1024000" >> /etc/security/limits.conf

# logstash 1.2.0
\$ mkdir /usr/share/logstash
\$ wget -q --no-check-certificate https://logstash.objects.dreamhost.com/release/logstash-1.2.0-flatjar.jar -O /usr/share/logstash …

Centreon 2.4.4 on CentOS 5.9 (clean install, minimal, selinux disabled)

[cc lang='bash']
\$ wget http://yum.centreon.com/standard/2.2/ces-standard.repo -O /etc/yum.repos.d/ces-standard.repo
\$ cat \<\<'EOF' > /etc/pki/rpm-gpg/RPM-GPG-KEY-CES
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.5 (GNU …

[cc lang='bash']
# put any hosts you want to complete in your /etc/hosts
\$ apt-get install bash-completion
\$ vi /etc/bash.bashrc # un-comment bash completion
[/cc]