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windows server 2003 secure tunnel proxy server

Windows Strengths and Weaknesses

The overwhelming bulk from computers, both personal and corporate, use Microsoft Windows, which has included Internet access for well over a decennary and as Windows became more complex, so bears it is Internet connectivity software. Windows 98 Second Edition cleared Internet Connection Sharing (ICS) to provide group access to the Internet from a local network. More complexities comprised added with the outbreak of Routing and Remote accession Service in Widows 2000 Server with its Network anticipate Translation (NAT) functions. 

It took awhile before experts glossed that ICS has specific shortcomings. ICS changes network bank bill addresses, which can cause problems on intranets. Because of this, ICS can only be used in small assurance or home networks and even then, ICS in assurance networks is not recommended, because there is no exploiter authorization or validation with ICS. Even using it on a home network makes any connection to the cyberspace insecure, since it is so easy for criminals to gain access to your computers by falsifying where it is coming from (their IP and MAC addresses). 

Some assist is Needed

Windows can organize Internet sharing, merely protection has never been a strong point. In do either hardware or software solutions from other companies are broadly speaking purchased to provide the security solutions needed. One of the more important of these is UserGate Proxy waiter. 

UserGate Proxy Server provides local network users on a secure Internet access by defining policies of these admittance, forbidding particular Internet resources, and limiting traffic or clock of a user’s work on the Internet. In addition, UserGate can keep distinct traffic calculations of users and of protocols, which greatly simplifies Internet traffic cost ascendence. Lately, among Internet Service Providers (ISP) there has constituted a tendency towards unlimited traffic and for that blueprint, UserGate Proxy Server provides a very flexible system aside rules. 

UserGate Proxy Server with NAT support works Windows 2000/2003/XP with the Internet (using the measure TCP/IP protocols). UserGate can also work Windows xcviii and Windows NT 4.0, but without NAT accompaniment. UserGate does not require any special resourcefulnesses for it is operation; it simply needs a relatively diminished amount from hard drive memory for its cache and log data file*. UserGate can also be installed on a dedicated computing device to maximize your network’s resources. 

Proxy waiters

Your web browser (whether it is Internet Explorer, Firefox, Safari, Netscape, Opera or Mozilla to name the most pop) comprises already able to cache documents. However, meaning disk space is not reserved for these purposes if the net connection is shared by an entire authority. The cause for this is that the probability from one-woman visiting the same web pages is FAR less than if dozens or hundreds from people are sharing the connection. Creating a common hoard for a company can greatly decrease bandwidth waste besides equally make almost instantaneous the receipt of text file* that are commonly accessed by employees. UserGate Proxy waiter can besides link with the external cascade proxy waiters (of your Internet Service Provider) to increase the amphetamine of experiencing data and reduce your Internet bills (hits costs because a provider are usually less when a proxy waiter is used). 

Program Configuration 

Configuring the hoard settings comprises done from the «Services» page. The opening comprises to enable the cache, then you will be able to set it is separate options, which include caching from POST requests, dynamical objects, cookies, and FTP content. You will be able to also arrange the size of the disc space for the hoard and the time-to-live of cached text file*. 

Other options mustiness also be set before you will be able to start working with the program. As a rule, this task is discharged in the following order:

1. Produce users of the program. 

2. Configure DNS and NAT on the UserGate server. At this stage you will be able to configure NAT using the wizard. 

3. Set parameters from the various protocols (HTTP, FTP, SOCKS), the intranet user interface on which they will be listened for, and whether cascading will constitute done. All of these can chevy at their corresponding pages of service settings. 

Foursome. Configure the mesh connection on each client computer, letting in gateway and domain name server in TCP/IP inward network connection properties, which mustiness be set. 

5. Produce an Internet access policy. 

Mental faculty* to Make matters Easier

To make the program a lot user-friendly, we divided it into several modules: 

The waiter module comprises started at a computer that has net access. This module controls the execution of all jobs. 

UserGate disposal is performed with the help of a special mental faculty: UserGate Administrator, which handles all server stage setting*. 

UserGate Authentication Client is a client application installed on each user’s computer. This module monitors and controls exploiter authorization to the UserGate server, if you choose an authorization independent of IP or IP+MAC. 

Security and Permissions

UserGate Proxy Server locks out unauthorized access. Each user can be authorized automatically by their IP accost alone or by a correct combination from IP and hardware (MAC) address. Each user can constitute assigned specific permissions 

To make it easy to add up users and to quickly assign the same permissions to a chemical group of similar users a separate pageboy is provided because the managing of users and chemical group*. Groups come through easy to manage users that ought have common mise en scene*, including network access and rates. You can create equally many groups as you need. Groups are usually produced based on company bodily structure and hierarchy. 

Each group canful be given its have rate that is used to manage Internet access disbursements. A default rate can chevy or left empty, inward which case the connectednesses of all users in a group are not bore unless a different rate chevvies in a exploiters own properties. 

There country number of default NAT rules provided in the computer program. These are access decrees through Telnet, POP3, SMTP, HTTP, ICQ and other protocols. While setting group properties you will be able to identify which decrees will be applied to the group and its exploiters. 

A dial on demand choice can be used once an Internet connection is done a modem. Therein case the modem dials up the connection only if it is requested. Dial on call for can also constitute used with ADSL, if so to get associated to the Internet provider they are necessary to dial up a VPN connection. Therein case the VPN connection can be set as dial on demand. 

If a computer with UserGate is inward an Active Directory domain, users can be imported to that so divided into groups that need similar admittance rights: authority type, rate, NAT rules (if group decrees do not fully meet the user’s needs). 

Authorization characters and decrees

UserGate Proxy Server supports several authorization characters, including authority through Active Directory and Windows Login, which allows desegregation UserGate into existing network infrastructures. 

UserGate consumptions its have client authentication module for some types from authorization. Contingent on the type of authorization you opt they are necessary to indicate, in user options, either the exploiters IP address (or IP address range), arrogate a log-in (username and password) or assign just a username. If you want to send to a exploiter, reports from their Internet traffic use you can come in the exploiters e-mail here. 

UserGate rules can be a lot of flexibly configured than RRAS Remote Access Policy. Using decrees you will be able to lock access to specific URLs, limit traffic on sure protocols, set time bounds, set a maximum file size that a user canful download, etc. Windows does not provide the functionality called for to fulfill these tasks. 

Decrees can be created with the help of the adept provided. Each rule bears application conditions and an objective it is executed once one or more conditions is met. For examples, cheeseparing a connection, assign a charge per unit or amphetamine, etc. Conditions include protocols used, time by work, a user’s traffic limits (incoming and outgoing), income remaining along account, as well as, IP address broadcast and domain list. Settings also allow the specifying by any data file extensions that users cannot download. 

In an number from organizations the use of instant messengers, such ICQ, comprises prohibited. This is easy with UserGate. To prohibit ICQ you simply create a rule, engaging out any connectedness with the host ‘*login.icq.com*’ and apply it to all users. 

UserGate Proxy host provides rules to allow varying rates for day or night time admittance, to local or common resources (whenever such magnetic declination* are offered by your Internet provider). E.g., for switching between day and night rates 2 finds are created: one that performs the switching at a deposited time from day to night rate and the extra that switches back to the day charge per social unit. 

DNS and NAT Settings

DNS (Domain Name System) are what is used on the Internet so you answer not have to remember a site’s numbers (its genuine cyberspace address), such as 53.128.182.67), only alternatively you can just remember its name, specified www.famatech.com. One of the controlling parts of the Internet’s DNS is the DNS server, which constitutes an computer (there are many DNS servers) on the cyberspace that translates the names of sites to their acts, so when your browser goes to www.famatech.com, the DNS server knows the correct IP amount to send the browser request to. 

The DNS giving UserGate Proxy Server is simply the locations (information science*) of one or two of these DNS servers (the closer the DNS server is to your ISP’s active location, generally the better), where each client’s DNS askings will be forwarded to. It is necessary to fence the IP address in your network interface of UserGate procurator Server as the gateway and DNS in the TCP/IP properties of each user’s network connection approximately their local computer. 

There is another way to aline the DNS. You can add a new NAT preclude which the IP receiver (the internal interface) and the information processing sender (the external interface) are set to larboard 53 and the protocol to UDP. If you economic consumption this method, this rule must be applied to entirely users. In connection settings of each local computer, the IP address of the ISP’s DNS servers mustiness be set as the DNS and the IP of UserGate procurator Server set as the gateway about each topical anaesthetic computer. 

Mail clients can be set either through with port mapping or through NAT. If instant couriers are appropriated to be used in the organization, the network mounts must be changed for them: both drug user firewall and proxy, the IP address of the home meshing interface of UserGate Proxy Server must be fenced, and the protocol HTTPS or SOCKS needs be picked out. If you use Yahoo Messenger, you should keep edge mind that when you work through a proxy emcee, Yahoo’s chat rooms and video chats are unavailable. 

Statistics for each user are recorded in a log. This include data on the time each connection started, them has duration, total cost, the URLs and IPs called, the number of bytes received and bytes sent. It is impossible to cancel or falsify the recording of whatsoever of this information about user connections in UserGate proxy Server’s statistics file. The statistics can be viewed either from the Server Administrator or from a special module Statistics. Statistics data can be filtered by user, communicatings protocol and time period; and these stats can constitute exported to Microsoft Excel for further processing. 

The early adaptations of UserGate Proxy Server cached only HTTP (entanglement) foliates. The latest version introduced new components designed to assure information security. Now UserGate users can make use of the built-in firewall and Kaspersky Antivirus modules. The firewall can control (permit or block) specific TCP ports and can also publish a company’s resources on the Net. UserGate Proxy Server processes all packets received from the network. Every port that is open in the beam, for example HTTP, SOCKS and others, are either opted by the administrator or can be opened in the firewall automatically. You can see which ports are open in the auto rules table on the Firewall conventionalisms page. 

Future development plans for UserGate Proxy Server accommodate creation of its own VPN server—so you've an alternative VPN solution to that offered by windowpanes—an introduction of a mail server that has it accepts own antispam support and the development of an good for you firewall at the application level.

irish proxy server

which offer features like file-sharing, chat or leaving comments for the user’s profile. Many civilizes and universities have blocked such websites to constitute accessed from their locations to restrict people from logs on to these websites. But the use of procurator waiters has a technological advance over these restrictions. The procurator servers let you access websites from restricted fixes and are a source to bypass secure sites of barricaded locations, as they have the ability to circumferential the network firewalls and filters. These proxy servers enable the users to surf the internet from blocked waiters and are compatible to surf through sites which bear sound and video streaming platforms like Youtube.

A procurator waiter is a computer program or application which appendages a client request and forwards it to other waiters. Once you connect to a proxy server, and assay to access some information available on another server, it forrad the request on your behalf and plays the emcee server. In short, it becomes your boldness and comprises you for access to the website or information. In that location are lots of types of proxy waiters available based on your need, such as;

• Web procurator
• Caching procurator server/ Http proxy
• Anonymous proxies
• Intercepting procurators
• Hostile procurator servers
• Reverse proxy servers
• Forced proxy waiters.

Usage from these proxy servers requires a simple appendage to constitute followed. You have to sign up to be capable to use these proxies. Most of these proxy sites offer services without a cost. But, about of them may ask for a small fee to for the proxy services. After signup, the user canful type the desired URL (for example: www.myspace.com) on the main page and all connections and hits to and from the destination URL is redirected via the procurator, making it look as if the hits is developing from the main proxy , thus bypassing the domain founded URL filtering blocking system. These proxies allow for exploiters to browse through the restricted websites and catch profiles, post comments, blogs and surf the sites because medicine.

These proxies are reliable and secure. You have to agree to accept the strict set of damage and conditions like not to access websites that bear banned content such as ware sites, use for spamming designs, or distributing Spy ware or any other malicious hand and you can surf the internet at civilize, universities, work and other places without any restriction, employing the simple scripts which allow you to access the barricaded websites.