Ntp Vandalism: Solutions to the Misuse and Abuse of Ntp Servers

NTP servers, like most systems are open to abuse and misuse. NTP servers can be flooded with traffic (a distributed denial of service – DDoS attack), the server’s access policy could be violated or the NTP rules of engagement drawn up to prevent misuse of time servers could be breached.

The abuse of NTP servers has received much attention of late due primarily to the case of D-link and a Danish Stratum 1 NTP server run by Poul-Henning Kamp. Mr Kamp noticed a huge rise in traffic to his time server, which at the time was the only Danish stratum 1 server available to the general public.

He discovered that up to 90 percent of the traffic was coming from D-Link router products that were latching on to his stratum 1 server for a time reference.

Normally only stratum 2 servers should connect to stratum 1 server and perhaps some servers where applications require more precision than that of a normal computer network, which can receive its time code via a multitude of sources.

In many countries, timekeeping services are provided by a government agency (such as NPL in the UK or NIST in the US). As there is no Danish equivalent, Kamp provided his time service to the general public in return his ISP agreed to provide a free connection the assumption that the bandwidth involved would be relatively low. With the increased traffic caused by the D-Link routers, his ISP then requested Kamp pay for the extra bandwidth.

D-Link is a Taiwanese based company that manufactures wireless and Ethernet products for the home and small office environment. Whilst not a deliberate attempt at sabotage Kamp’s time server D-Link routers were configured to directly query over 40 stratum 1 servers.

The disagreement lasted fro nearly six months where in 2006 D-Link and Kamp announced they had come to an agreement and D-Link have reconfigured their new routers but little can be done about the existing products out there.

A new defense has subsequently been added to NTP which responds to an authorized request with a packet explicitly requesting the client server stops requesting. This packet has been dramatically called the Kiss-of-death – KOD.

Unfortunately the new requirements of the NTP protocol do not work retrospectively, and old clients and implementations do not recognize KoD it and at the moment there are not any technical means to counteract the misuse of NTP servers.

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Secure Web Hosting Solutions in India

India is emerging as a leading IT technology and services to the world. Indian IT sourcing companies offer a number of services including software applications development, system integration, IT security, Web designing and Web development, as well as secure Web hosting. IT offshoring services in India has gained significant popularity over the past several years. These services are highly affordable because they are offered by specialized companies that have dedicated infrastructure and the expertise to offer highly professional services to a large number of customers. For this reason, many companies in the West are adopting these services as a viable alternative to offering them in house.

Secure Web hosting services is one of the most popular IT services offered in India. There are many leading Web hosting providers in India that offer secure hosting services through industry partnerships. World-renowned data center providers like Rackspace and ThePlanet have associated with these companies to offer the best-in-class Web hosting infrastructure supported by the advanced technologies. Leading software vendors like Microsoft and RedHat provide them the software platforms to offer affordable and flexible hosting platforms to customers in India and abroad. Indian Web hosting companies fully utilize these industry associations to the benefit of their customers.

There are different types of secure Web hosting services offered in India. The most popular among them are Dedicated Hosting, Colocated Hosting, Managed Hosting and Shared Hosting.

In Dedicated hosting, the user leases a dedicated server from the hosting company. The host provides all typical services offered at the datacenter which include server maintenance, security and backup. The Web site owner has the complete freedom to manage the server and modify the settings as per his need. This type of hosting is usually offered for businesses that have to deal with large volumes of data.

Colocated Hosting is another Secure Web hosting service in which the host allows the user to co-locate his server at the host data center. In other words, the user purchases the server and appoints the host to run it in their data center. Here users have the freedom and flexibility to control their server, and the hosting company provides the server space, service and support. Colocated Hosting is more expensive than other types of hosting services.

In Managed Web hosting, the hosting company owns and controls the server, and the user is not allowed to change the settings, nor does he have the control over the software and hardware. The users, however, can manage their data via FTP or other remote management tools.

In Shared hosting, the user shares the server space with other users. In such hosting plans, the server space may be limited. It is the cheapest way of hosting a Web site, and is usually opted for individual Web sites.

Indian hosting companies offer secure Web hosting services under all of the above plans. The demand for offshore Web hosting services in India is on rise, which itself validates the quality of these services.

Business Server Support Services and Solutions

Business Server Support has become a major part of our lives. Any business or office is almost completely dependent on server support today for their operation. Once an office is computerized it may tend to have problems with the server hardware or may end up with some software related issue some time or the other. To take care that the functioning of the business is not affected due to these problems most companies hire the services of an On-Site or Online server support firm which would provide it with the necessary small business server support that it needs from time to time. In case of any problem this firm would give the server support solutions that are required to overcome the problem.

IT experts do a wide variety of jobs which include designing and installation of computer networks, managing the system and various other tasks. Some server support lending firms have such advanced technology that they identify a problem at a very early stage and that tends to work as an alert system. This works as an alarm and major problems can be avoided and huge expenses can be prevented. The server support services firm monitors the functioning of the servers and being a continuous process, problems are identified and addressed at the earliest saving both time and money.

Hiring a competent server support services firm is of utmost importance as it would have all the server solutions which would make the functioning of the business an absolutely smooth process. Over a period the servers tend to slow down and a server support firm which has the right expertise would help you deal with this issue by monitoring the servers and providing effective maintenance at regular intervals. The most well equipped firms offer online server support and this would help in saving a lot of time. They are even capable of identifying a failing hardware which would ensure that no data is lost as recovery measures can be setup at the earliest.

Security issues are a big concern as far as servers are concerned. A capable and proficient server support partner would help in getting the very best out of your servers. Most of the time companies have a requirement of programs which are to be made with certain specifications meeting the demands of the company. Such server solutions can be brought about only with a well experienced team of an efficient server support firm.

If the server is managed by an experienced hand then you can concentrate completely on the functioning of the business. There are such firms which look into the needs of Companies requiring small business computer support to enterprise level support. Such competent firms also have well experienced staff to attend to every problem at the earliest and offer the very best solution.

One should conduct a thorough survey before hiring the server support of any such firm. There are plenty of such support providers but an efficient one is of utmost importance as the functioning of your enterprise is largely dependent on their service and effectiveness.

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