I get confused with some security terms. What is SSL, TLS, and HTTPS? What are the differences between them?
TLS is the new name for SSL. Namely, SSL protocol got to version 3.0; TLS 1.0 is "SSL 3.1". TLS versions currently defined include TLS 1.1 and 1.2. Each new version adds a few features and modifies some internal details. We sometimes say "SSL/TLS".
What is HTTPS?
HTTPS is HTTP-within-SSL/TLS. SSL (TLS) establishes a secured, bidirectional tunnel for arbitrary binary data between two hosts eg your browser and our servers. This protects against eavesdropping and tampering with and/or forging the contents of the communication.
Are you sure you want this POODLE?
POODLE or Padding Oracle On Downgraded Legacy Encryption is a security exploit that will allow someone for example, to steal “secure” HTTP cookies (or other bearer tokens such as HTTP Authorization header contents). It affects SSL 3.0 which we don't use.
Do I really need to use a Server? They are expensive. Why not just use the PC we don’t use in the office as our server?
Servers are built with redundancy in mind, they have "Double everything" to ensure in case the primary component fails, the second one will continue operation. They also allow for "Hot-swapping" of most components. This means for example the power supply unit can be swapped out as the server is operating reducing or eliminating downtime.
I have a copy of my data in a flash disk and Porttable Hardisk? Why do I need MFS Fortress Data Backup.
“Not even the most diligent daily backups can now fulfill the high availability requirements of the always-on business,” fast recovery is the key to avoiding lost productivity. At MFS, we have a dedicated team to work with you to reduce the amount of time it takes to recover from a data disaster.
Wait a minute, doesn't failover mean you'll fail?
In computing, failover is switching to a redundant or standby computer server, system, hardware component or network upon the failure or abnormal termination of the previously active application, server, system, hardware component, or network. Failover and switchover are essentially the same operation, except that failover is automatic and usually operates without warning, while switchover requires human intervention.
I didn't know computers can carry so much weight, or what do you mean by Load Balancing?
Load Balancing distributes workloads across multiple computing resources, such as computers, clusters, network links, central processing units or disk drives. Load balancing aims to optimize resource use, maximize throughput, minimize response time, and avoid overload of any single resource.
By teleportation, do you mean you can move my servers to your offices anytime?
In the context of virtualization, where an entire server is actually merely a software virtual machine (VM) running on a host computer under a hypervisor, migration (also known as teleportation) is the process by which a running virtual machine is moved from one physical host to another, with little or no disruption in service.
When you talk of snapshots? Does this mean servers take selfies too? How come I never see any from our server?
In computer systems, a snapshot is the state of a system at a particular point in time. The term was coined as an analogy to that in photography. It can refer to an actual copy of the state of a system or to a capability provided by certain systems. We take regular system snapshots to allow us to restore a server to a particular state back in time.
Why does M-Pesa have so many 3 letter acronyms. B2C, C2B, API, POS. Is FBI one of them?
API is an abreviation for Application Program Interface and it is a set of programming routines and tools that allow us to build sofware applications. B2C is a term that Safaricom M-Peasa sytem use to mean a tranaction from a Business entity to a customer, this is also known as bulk payments. C2B is an acronym for Customer to Business which indicates a transaction from a customer M-Pesa accout to a business Paybill. Finally POS is an acronym for Point Of Sale and in M-Pesa terms is also known as Buy Goods. This is suitable for restaurants, pubs, pharmacies etc.