SAS device is an interface for serial data transfer. Actually SAS is the replacement to SCSI (Small Computer System Interface) parallel, but still uses SCSI commands for interacting with SAS devices. SAS increases speed and allows the switching on and off quickly.

The organization behind the development of the SAS specification is the SCSI Trade Association. It is a nonprofit organization based in California that was formed in 1996 to promote the use and knowledge of parallel SCSI.

The first version appeared in late 2003. SAS 300, which got a bandwidth of 3Gb / s, which considerably increased the speed of its predecessor (Ultra SCSI 320MB / s). The next evolution, SAS 600, reach speeds of up to 6Gb / s, while it is expected to reach a speed of about 12Gb / s around 2010.

One of the main characteristic is that it increases the transmission rate by increasing the number of connected devices, so it can handle transfer rate constant for each connected device. In addition to end the present limit of 16 SCSI devices, it is expected that SAS technology will replace its SCSI prototype.

In addition, the connector is the same as SATA interface and allows you to use these hard drives for applications with less need for speed, cost savings. Therefore, the SATA controllers can be used by SAS but not the reverse, a parent does not recognize SATA disks SAS.

It is designed to allow higher transfer rates and be compatible with SATA, and allows up to 16384 addressable devices in a SAS domain. This is possible thanks to the SAS domain, which are a set of ports that communicate with each other.

Overall, SAS drives are not cheap they are rather expensive, but in terms of features and performance most of the dedicated server hosting providers included SAS drives in their hosting plans.

It is here where the website traffic increases and the number of daily online visitors grows, it is necessary to consider to replace a shared server to a VPS hosting or dedicated servers. Even the number of users who enter may stay the same, but the virtual catalog of products offered can grow significantly and we may lose some users who do not get optimum performance.

VPS and dedicated servers are constructed according to the needs of the user who hires. Among the qualities that stand out is the minimum income support machine in emergency situations so that the server run even if momentary problems. In this way, not one is left with unprotected website and performance is guaranteed.

The VPS Hosting is considered as the first step before hiring dedicated servers, which is great because once you learn to manage these servers, the following are administered in the same way for the user who does not have problems in switching between each other.

In addition, the VPS and dedicated server can be upgraded by simply contacting the hosting company and instantly get what you want.

Check out the features of your website and detect if their performance is declined, perhaps it’s time you change to a better server.

Issues to consider are:

Security :  If you opt for shared server, it is obvious that it must share access to the server with other companies. The critical issue in this situation is that of security. There may be security holes in other companies that make the server is susceptible to malicious attacks. But if you choose dedicated servers, the customer can set security as it considers appropriate. Whatever is shared in terms of hosting locations by price involves sacrificing safety. The customer must determine how critical is the issue of security in terms of directories archived on the web. If, for example, you decide to file credit card numbers with security codes and personal information of the owners, that information is highly sensitive. In that case, a dedicated server is necessary.

Access to the server : Whoever controls the server’s, control panel is controlling access to it. Thus, if the server is shared, your control panel will be shared with the hosting provider. This is another weak point for security.

Installing a AFP firewall doesn’t require much time, it is very easy process to setup and activate it. Below are the simple steps to install the APF firewall on your VPS Server.

Very first you require to define which IPtables modules should be available for VE’s.

Edit /etc/sysconfig/iptables-config:

IPTABLES_MODULES=”ipt_REJECT ipt_tos ipt_TOS ipt_LOG ip_conntrack ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length ipt_state iptable_nat ip_nat_ftp”

Edit /etc/sysconfig/vz:

IPTABLES=”ipt_REJECT ipt_tos ipt_TOS ipt_LOG ip_conntrack ipt_limit ipt_multiport iptable_filter iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length ipt_state iptable_nat ip_nat_ftp”

Please note – iptables modules in IPTABLES parameter in /etc/sysconfig/vz should be placed in one single line, no line breaks is allowed in this parameter.

Restart vz service. All VE’s will be restarted.

service vz restart

Increase ‘numiptent’ parameter for the VE you need to install APF into. This parameter limits the amount of iptables rules available for a VE. Default APF configuration requires ~200 rules. Let’s set it to 400:

vzctl set 101 –numiptent 400 –save

In VE (VPS),

Install APF inside the VE as usual.

Edit /etc/apf/conf.apf, set the following parameters:

IFACE_IN=”venet0? IFACE_OUT=”venet0? SET_MONOKERN=”1?

Start APF inside the VE:

/etc/init.d/apf start

You can use the same steps to install a BFD on your server.

Going with a dedicated server will discover wide range of expectations for new ventures. Having a dedicated server assures you of getting full administrative support of the web hosting provider you choose. The service provider will not only provide you a good support but also offers much more than that.

The dedicated servers furnishes you with a fully flexible and features packed solution, with which a customer has a total control over his server and doesn’t require to share the server resources with any other hosting accounts. Before signing up for the package, you are able to configure your server with the components the way you like. Not only before, but also you can customize your dedicated server after the completion of the sign up process.

As it offers flexibility to its clients, you can select the operating system you want to install on your dedicated server. Hence, the benefits you receive from a dedicated server cannot be compare with the other typical web hosting packages. A dedicated server is completely beneficial in all terms. With each and every aspects of a dedicated server you can increase your website performance and thus, helps you to increase your productivity as well.

Freedom of selecting the choice of operating systems benefits you in various ways. The people who use Linux operating system gets technically independence as it is compatible with almost all the databases and hence helps a website to perform better. Whereas, Windows operating system is much used in the corporate world where people who wish to use Microsoft Technologies based softwares can rely on Windows OS.

Choosing a trustworthy web hosting provider that can offer you various options including selection of operating systems and offers you all the required services and support is crucial for the businesses to take it to the next level of success.

This example will suggest the steps involved in building & installing CMake in a non-default location on Solaris OS. Sun Studio C/C++ compilers being used to build CMake.

# gunzip -c cmake-2.6.3.tar.gz | tar -xvf -
# cd cmake-2.6.3

# export CC=cc
# export CXX=CC

# ./bootstrap –prefix=/export/expts/CMake

# make
# make install

# export PATH=/export/expts/CMake/bin:$PATH

# which cmake
/export/expts/CMake/bin/cmake

# cmake -version
cmake version 2.6-patch 3

1)  Once the page loads you will see a table containing the following information which is split into five columns;

1. Database – This entry will be the database name you created in Step 1 above.

2. Size – This entry will be the size of the database you created in Step 1 above.

3. Users – This entry will be the users in the database.

4. Actions – You have once choice:

5. Delete Database – Click on this link to delete a database.

2) Once you see the table, find the database you want to delete in the “Database” column.

3) Then click on the Delete Database in the “Actions” column.

4) The following confirmation statement will be seen :

“Are you sure you wish to permanently remove the DATABASE_NAME?”

5) Click on the Yes button.

6) The following statement will be seen:-

“Deleted the database DATABASE_NAME.”

“Database “DATABASE” dropped.”

E-commerce Hosting Checklist:
While looking for E-commerce web hosting you should make sure that your host providers offer you a complete web hosting solution for online businesses that  include the major part of your requirement like the tools to handle online sales. Such as payment gateways, SSL (Secure Socket Layer), database support for secure transactions.

Here are some of the key feature you should consider while choosing a web hosting companies for your E-Commerce website:

* SSL: Your web hosting server should support SSL secure servers (128 bit) encryption since E-Commerce web site require payment transaction.

* Fast Internet Connection: Make sure that the server is hosted on fast data center.

* Make sure your host must have well trained and experienced tech staff to handle any unpredicted problem.

* Data backup: Your hosting plan must provide backup and also make sure SSI and Custom error page should be included in the hosting plan

* Unique IP address: You must ask for at least 2 unique IP for your website, best to go for dedicated hosting if you’re going to operate a large store.

* You will also need POP-3 email addresses, aliases and free forwarding and auto responder.

* Server Uptime: Give priority to the web hosting companies that provide you 99.99% uptime and fast network since your business depends on superb uptime.

* Check your hosting plan should also include Java Servlet support CGI-Perl/PHP Support:

* Database Support: Check the database like MySQL or PostgreSQL should be included with the comprehensive package.

* The availability of 24/7/365, live customer support is critical so make sure your hosting  company offers 24/7 support.

Google checkout is basically a 3rd party merchant account provider like others payment processor such as paypal, 2checkout and other online payment processing service, however it is not a payment gateways or MSP. To get Google checkout merchant account you should check whether it support your location or not, for any US clients you must have a US address with a US Bank account in addition to a social security number and a Credit card or Federal Tax ID/ EIN, Google checkuout has no monthly setup or gateway fees. Google charge with a standard charge of 2.0% of the sales amount plus $ 0.20 per transaction. Google Checkout merchants can sell only tangible goods and not any intangible products/services unless they’re certified as a 501c3 tax-exempt organization.

If you’re adword advertiser you get benifit by using Google checkout like for every $1 spent on Adword each month you can be able to process $10 in sales the subsequent month for free. Google checkout has proprietary built robust Fraud Screening system which protect the merchants from chargebacks. In case if a chargeback is reasonable the merchant has to refund full amount with $10. Google Checkout tracks also user’s purchase history by which Account holders can view their purchases and shipping information. Google Checkout can be integrated easily into many popular shopping cart systems like OsCommerce, zencart or CubeCart.

Also integration part is very easy, you can easily integrate Google checkout through Buy Now buttons, Off-the-shelf shopping cart or through their Custom-built shopping cart, all these integration need few technical knowledge.