These are my links for 12 set 2011 through 16 set 2011:

• How To Harden a Linux or OpenBSD Installation – Many of these work on both Linux and OpenBSD. Some are only relevant on Linux
• VMware Communities: ghettoVCB.sh – Free alternative for backing up VM’s for ESX(i) 3.5, 4.x+ & 5.x – Updated 06/28/2011 – This script performs backups of virtual machines residing on ESX(i) 3.5/4.x+/5.x servers using methodology similar to VMware's VCB tool. The script takes snapshots of live running virtual machines, backs up the  master VMDK(s) and then upon completion, deletes the snapshot until the next backup. The only caveat is that it utilizes resources available to the Service Console of the ESX server or Busybox Console (Tech Support Mode) of the ESXi server  running the backups as opposed to following the traditional method of offloading virtual machine backups through a VCB proxy.
• Effettuare Backup di macchine virtuali su NFS con Vmware ESX/ESXi « Davide Bombarda – Spesso capita di dover efettuare backup di maccine virtuali. E come al solito senza voler spendere soldi in prodotti ulteriori.<br />
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  Il seguente procedimento si basa sul documentatissimo script Ghettovcb.sh