Introduction proxy

The operating principle of a proxy server is very simple: it is a server "mandated" by an application to query the Internet instead. Thus, when a user connects to the Internet using a client application configured to use a proxy server, it will connect first to the proxy server and give him his request. The proxy server will then connect to the server that the client application tries to join and to transmit the request. The server will then give its response to the proxy, which in turn will send it to the client application.

Clearly, the starting IP address is completely hidden, and only the IP address of the proxy appears in the log service contacted.

Advantage: You appear more with your own IP address
Disadvantage: Depending on the type of proxy used (public: free, private: paying) the rate may be very low.


Sunday, March 3, 2013

Uses of a VoIP Proxy Server

There are many ways to set up a VoIP system. One of the advantages of VoIP is the flexibility it affords businesses who can configure it to suit their needs. One such architecture is the proxy server which has seen widespread use and is becoming more and more prevalent especially with the SIP protocol growing in popularity. But it is by no means the only method. Skype famously uses a distributed and decentralized solution for its proprietary protocol. In this article, we look at a few benefits of using a VoIP proxy server and why it makes sense to choose one.
Security
The security implications of VoIP are still being discovered. Even though most professional businesses implement best practices in their firms, VoIP is still a new technology and it will be some time before we understand the various backdoors and exploits. Unfortunately, VoIP as a communication system is designed to talk to people outside your network and this can be dangerous. A proxy server sits between you and the person on the other end of the call. This means any attack has to first penetrate this line of defense. If you're using a hosted PBX VoIP system, you can be sure that the ITSP has activated advanced security on the server since that's their specialty. The end result is that your own systems are protected from attacks and the proxy acts as a sort of firewall for your organization.
Accessibility
A proxy server also improves the ease with which you can use your company's VoIP service to make calls no matter where in the world you are. Access to the proxy is provided via a username and password and authenticated users can utilize any Internet connection to make calls via any Internet enabled device including mobile phones.
Administrators can also easily monitor suspicious activity in one place by checking the log files of the server. They can enforce procedures such as regular password changing in order to harden the system to attacks and ensure its integrity. The proxy server system also allows you to use your own applications instead of just the ones which your ITSP provides you with. As long as an application is able to communicate with the proxy server using well defined standard protocols, it should be easy to choose your own software to connect with.
This ties in nicely with the philosophy of VoIP which emphasizes choice above all else. A proxy server is the perfect complement to such a system and keeps users protected as well.
Bhagwad is an expert consultant on Hosted SIP PBX Servers. He also specializes in Mobile VoIP Servers.
Article Source: http://EzineArticles.com/?expert=Bhagwad_Park

Windows Proxy Server

Windows Proxy Server is an application that acts as a medium and intermediate machine between a regular terminal computer of a local area and the World Wide Web. The servers used for the web are usually HTTP proxy servers, or as they are mostly known Online Proxy- Servers. In general, depending on the needs and requirements, there can be many different types of servers for all application protocols.

A Windows Proxy Server features particular operating principles, which are quite simple to understand even if you are not a savvy internet person. The proxy is a server that acts as a medium for applications, making requests online in their stead. Therefore, when users connect to the World Wide Web using client applications, these applications connect to the proxies first and then give them their requests.

The proxies then are supposed to connect to the server which the applications want to connect to and then they send the requests to the server. Once the proxies receive the reply from the server, they send it to the application clients and the user is finally connected to the webpage he wants. Of course all this Proxy anonymity process may sound complicated, but practically lasts for a few seconds. These few seconds have raised some controversy though, as there are many people who believe that proxies are slow. However, they are the most effective and efficient means of anonymous surfing available today.

Using protocols such as TCP/IP in a local area network, the role played by the proxies are is actually taken over by routers and gateways, but the proxies are not useless; on the contrary, they have some other features that make them very useful and practical. Caching is one of them; most Windows proxy servers have caches, standing for the option to keep some popular websites in memory for a long time, in order to facilitate and accelerate visits. A user that has access to a Proxy Servers List can cache information through a proxy called cache-proxy.

Internet connections can be facilitated and encrypted with the use of a well appointed, fast and effective Windows Proxy Server.
 
This was written by Stephen Martin from Engine Marketing a company which specializes in Web Design and Search Engine Marketing. We hope this article help about Windows Proxy Servers.
Article Source: http://EzineArticles.com/?expert=Stephen_Alan_Martin

Wednesday, February 27, 2013

All About Proxy Server Lists

A proxy server list is very easy to find these days on the Web. The growing number of people who are availing of these services have led to a surge in the number of websites offering such inventories.

However, not all of them can be relied upon. If you are looking for some proxies to use, you need to pay attention to that catalog of servers before you. You cannot just go on clicking every link shown; that will just take too much time. Instead you should try and focus on the website itself; this will help you determine just how reliable the links provided are.

The reason this is important is because some proxy server lists on websites have been put there for commercial or promotional purposes. That is, the website will get paid if you click the links, as it is in some way affiliated with the server. Fortunately you can detect this; if the site for example, tends to be overly positive about the links, or claim that they are all the very best, you should cast your doubts. This would be even more suspicious if the links are not found in other websites.

Once you have spent some time reviewing and researching the subject on the Net, you will eventually find it much easier to discern between an objective online proxy server list from the promotional one. If this is your first time to check, you should look for a balanced commentary, as well as detailed stats (how long it takes to connect to the site, for example).

Once you have bookmarked the site, be sure to check it for updates. The URL you are using may be working now, but do not be surprised if you find it hard to access some time later. If the website provides fresh info, then you should have no problem looking for and using other links. A good site should also offer some basic info on how the process works; it will help you decide what to use too.

A proxy server list is one of the most important tools that anyone who wishes to surf the Web anonymously should have. It is a convenient way of getting the links you need, minus the hassle of going to a search engine repeatedly. With a reliable and well maintained record in hand, surfing the Web in private will be a reality.

Peter Garant has written many articles about Proxies for a recently launched website about School Proxy servers.

Article Source: http://EzineArticles.com/?expert=Peter_Garant

Proxy Templates

Proxies let the users surf the website from blocked location like a school, university library or an organization. They keep you safe and secure by maintaining your privacy. In simple words, the proxy servers hide your identity and access blocked websites on your behalf. On the web network, there are a lot of websites which offer features like file-sharing, instant messaging or leaving comments for the user's profile, and a lot of schools and organizations have blocked such websites to be accessed from their locations to restrict people from logging in to these websites.

The development of proxy servers has a technological advance over these restrictions. These proxies let you access websites from restricted locations and are a source to bypass secure sites from blocked locations, as they have the ability to bypass the network firewalls and filters. These proxy servers enable the users to surf the internet from blocked servers and are compatible to surf through sites which have audio and video streaming platforms like Youtube.

Another advantage of a proxy server is that the chance of getting virus, spyware and other malicious scripts is reduced, and as a result your computer becomes a safer and reliable machine.

A lot of web sites offer the proxy servers and most of them provide proxy templates as well. Designing a proxy template is not an easy task. Considering this fact, a lot of websites offer pre-designed proxy templates for you. These proxy templates can be downloaded and are simple and easy to use.

The downloaded proxy templates are free of cost, but most of the host websites may require you to back-link to their websites. PHP and CGI proxy templates are also available on such websites. The downloaded files for the proxy templates and themes comprise of the necessary designing and setup files and you can customize your website as per your requirement. Normally, the downloaded files are in zip format and you may need to extract the graphic files, images, fonts, Photoshop files and the script files. To avoid any misuse of the script files, the configuration files are available in the download which lets you customize the template, as you may require, and edit the text files like the Meta keywords, description and titles.

The PHP proxy and the CGI proxy provided are updated versions and are fully up-to date with the required technology. The host websites offering these proxy templates may allow you to put a link to download the templates on your website too based on the condition that the site is linked back to the host website.

Naren Verma is a webmaster who owns various proxy websites. If you enjoyed this article, you may like to check his proxy website Proxy Templates [http://www.phproxydesigns.com] to enjoy the web freedom in which he strongly believes.

Article Source: http://EzineArticles.com/?expert=Naren_Verma

Finding Proxy Sites With My Link Train

If you want to move around the World Wide Web in private, and without fear of detection, then a proxy site is what you need. The problem with most Internet sites though, is that the links they provide are not reliable.
This is where My Link Train is different; the database of proxy sites are always updated to ensure that only active ones are listed. In addition, the servers in My Link Train are able to go around web filter software. Moreover, sorting through the list is made easier as it is subdivided into several categories, including the most popular and newest. There is also a link where new proxies can be submitted.

What is it?
At its most fundamental, it is a web page that gives users the opportunity to visit any web site that has been blocked by a content filtering software (for example, filtering software that has been installed by a network administrator to limit the web capabilities of a user).

If you utilize a proxy, such as those provided on My Link Train, you will be able to not just go around this filter, but you also gain anonymity. The IP address of your computer is not recorded, and there is no indication on the part of the content filter that will suggest that you were able to get around it.

How does it function?
The service works by directing the user to the site or page. It also includes a code in the window where the web page being accessed is loaded; what this means is that it is the window that gets the code, hiding the address of the actual web site. Second, all the cache and temporary Internet files that are going to be downloaded will be made to appear like it belonged to the proxy site, not the one that was visited.

The benefits of using proxies like the ones on My Link Train are obvious: for workers it becomes easier to access sites that may have been blocked by mistake by the installed software, and second in some countries where flow of information is highly regulated, it gives people the opportunity to view other data that the country or state does not wish its people to have access to.

What are the different software in use?
There are several applications available for download on the Internet, and two of the most popular are CGIProxy and PHProxy. PHProxy is highly customizable, and allows for the title of the site to be removed, including the meta tags and uses cookies only for the existing session.

CGIProxy does not have the customizability of PHProxy but it allows for greater anonymity, and has no advertisements or cookies. The IP address is also hidden much more efficiently than with PHProxy. These applications, and many other related software, can be downloaded on My Link Train.

Using a proxy has become essential for computer users who need to undertake research without being hampered by content filter software. By using these servers you can navigate and research websites more easily and quickly without having to reconfigure the filtering application repeatedly.

Peter Garant is writing articles about Proxy Websites for a full site about how to use a proxy Proxy to surf anonymously online.

Article Source: http://EzineArticles.com/?expert=Peter_Garant