How do I set up fail2ban to secure Ubuntu server? I recently install the latest fail2ban (Version 0.9.1 release) to secure Ubuntu X64 server, I have whitelist the administrator Ip range but am sure it may not be secure. Is it possible to set up fail2ban to ignore dynamic IP other than the default ‘ignoreip’? If not, what other secure option can I use to achieve this goal?

What are the leading and most cost effective tools in managing cloud computing? With many tools to choose from in cloud management, choosing one may be an Herculean task. What are the criteria to look for in choosing cloud management tools? Can this tools be customized to a company specific requirement?

Why can’t I upload to Microsoft SkyDrive from my Microsoft desktop office app? I have been trying to upload to my Microsoft SkyDrive account from my desktop office app recently but the files are not uploading. My internet connection was excellent because other web services are running fine except the uploading to SkyDrive. How can I fix the problem?

What is the difference between distributed cloud and Multicloud in the cloud deployment model? What architecture is Multicloud deployment model use? Can a cloud client implement Multicloud and other cloud deployment model at a single time and what are the disadvantages of this approach? Is Intercloud the same thing as Multicloud?

How can I move a wordpress site with .com domain to .org domain? I have a site in wordpress with the .com domain but trying to move it to .org domain is posing some form of challenge. I have tried chrome developer tool, but it is not working. My major challenge the mastering the Wordpress hierarchy is my problem.

What is the best approach to use in choosing services model in cloud computing? In choosing between different service model in cloud between Infrastructure as a service (IaaS), Software as a service (SaaS) and Platform as a service (Paas), what are the criteria in selecting one for a use? Which is most cost effective?

How to run different separate Virtual Machines do improves the overall security of the server? An idea has come to my mind that if three separate Virtual machines (VMs) was use for database server, web server and the data analysis server, the overall security of the server may be improved. Is this true?

What is the difference between cloud server and cloud hosting in cloud computing? I have been to many seminars where cloud computing was discussed, some of the speaker uses cloud server in their presentation while others use cloud hosting. Where is cloud hosting appropriate and where is cloud server appropriate?

What are the hindrances from transiting from one cloud vendor to the other? If a vendor cannot meet company new requirements and there is the need to change a vendor, what are the drawbacks? Is it possible to leave a cloud to on site traditional delivery services? How best can the lead way be reduced?

How are data stored in cloud segregated? Government, rival corporations, enemies and what have you uses cloud reasons best known to them and their data are stored in the cloud? If two rival corporations use the same vendor, how are their data segregated? Can the either of the two have access to other resources?