Possible Functions Of A Proxy


Protection Of The Clients

The proxy can be an interface between the private network and the public network. The private network clients access the web server of the public network via the proxy, for example. Since the contacted target system from the public network does not send its response packets directly to the client, but sends them to the proxy, the latter can actively control the connection.

Unwanted remote access to the client (which goes beyond the response packets) is thus prevented or at least made more difficult. Appropriate security measures and their constant control are thus limited to a single or a few proxies, rather than to a large number of clients.

They settle in an upstream bastion network also easier and more reliable realize. In addition, own servers are better protected, which do not need access to the Internet themselves, but are in the same segment as the clients shielded by the proxy. This keeps the internal network protected, even if the proxy site is compromised, giving the IT department additional time to respond appropriately to a possible outside attack.

Protection Of The Server

A proxy server can generally be used to put the actual server in a protected network, making it reachable from the external network only through the proxy. In this way you try to protect the server from attacks. The proxy software is less complex and therefore offers fewer attack points. This solution is used, for example, in online shops: the web server is located together with the proxy on the Internet and accesses the database with customer data behind a firewall.

Bandwidth Control

The proxy assigns different resources to different users and groups based on their workload. The proxy server Squid masters this process, while also helping to protect the server and supporting methods for better availability.

An Introduction About Reverse Proxy Functionality

reverse proxy functionality

Reverse Proxy Functionality

It is an important element of application infrastructures, providing an additional layer of security for protecting application servers.

Reverse proxies are used to deploy applications outside the protected internal network zones, and they retrieve the requested information from the server as a proxy for access from these unprotected areas.

Load Balancers and Application Delivery Controllers are typically used to increase the availability of server applications. Due to their core functions, they are by definition always reverse proxy servers, and are therefore often used for both roles – load balancing and reverse proxy.

In most cases, Internet clients are with the reverse proxy server, which “hides” the actual application servers, such significant reducing potential attack scenarios on the application.

It becomes clear that a reverse proxy site server plays a key role in the data exchange between client and server – if it fails, access to the large number of published services and applications is no later possible. High Availability” (HA) mode.

SSL acceleration streamlines application delivery by shifting performance-hungry SSL processing (handshaking, key exchange, session setup, decryption, and encryption) from the application server to the reserve proxy / load balancer.

They are specialized in this, and at the same time more powerful than the application server – which in turn has more resources available for their actual tasks.

This provides optimized performance for many applications such as CRM, messaging systems such as Exchange, Unified Communication, Extranet, Industrial applications, etc.

Fast data delivery is achieved while increasing security levels – helping to prevent potential attack scenarios. SSL acceleration can also be supported with special hardware (ASICs) or specialized software.

Content caching is also an important feature of reverse practice or load balancers that increase application performance: static elements of the application, such as time-consuming login pages, are cached, which reduces the number of accesses to the application servers in the backend.

Reduce the load on the application servers, which in turn can respond to new requests faster and with shorter response times.

What Is The Highly Anonymous Proxy


Highly anonymous proxies forward packets as they are as if the server is really an ordinary client, and the recorded IP is the IP of the Free Prox proxy server.

Ordinary anonymous agent

The ordinary anonymous proxy will do some changes in the data packet, the server may find that this is a proxy server, but also have a chance to trace the real IP of the client. The HTTP headers that proxy servers typically join are HTTP_VIA and HTTP_X_FORWARDED_FOR.

Transparent agent

Transparent proxy not only changed the data packet but also tell the server client’s real IP. This agent has no other significant effect than using caching to improve browsing speed and content filtering to increase security. (The most common example is: the hardware firewall in the internet)

Spy agent

Spy agency refers to the establishment of organizations or individuals, used to record the data transmitted by the user, and then research, monitoring and other purposes proxy server.

Proxy Server And NetworkSecurity, 

Contribution To Cybersecurity

Its content filtering helps prevent hackers from damaging the computer and protecting the computer.

Its anonymous feature can help you hide the real IP, so as not to be targeted by hackers.

Destruction of cybersecurity

Its anonymous feature can help hackers hide their true IP, vandalism, thus increasing the difficulty of the police evidence. (The more common practice is to hang only one proxy, but the more secure approach is to use several proxy servers as “proxy chains,” or to erase the proxy’s log, cache after the intrusion is complete.) There are also some malicious users often leave a message after leaving the proxy, so some websites may give you “gossip” when they use the proxy.

Its transit function in use, all the data sent to the server are basically all plaintext, a previously mentioned “spy agent” is likely to record all the data (including username and password), so if possible, Need to transmit the username and password through the proxy, try to use SSL, TLS protocol prior encryption.

How To Determine Your Proxy Is Highly Anonymous Or Transparent

proxy site

First introduced under what is a highly anonymous proxy and transparent proxy.

You Use a transparent proxy on QQ, the other party can still see your original IP

Only with anonymous and high anonymity.

In Detail

Anonymous proxy site:

Proxy users, the proxy can be divided into three types: highly anonymous proxy, normal anonymous proxy, and transparent proxy.

(1) A high degree of an anonymous proxy does not change the client’s request, so the server looks like a real client browser to access it, then the customer’s real IP is hidden, the server does not think we are a proxy.

(2) The ordinary anonymous proxy can hide the real IP client but wants to change our request information, the server may think we use the proxy. However, the site may not be able to find your IP address, but you can still find your IP.

(3) Transparent agent, it only changed our request information, but also send a real IP address.

The three levels of hidden agent identity are most invisible to highly anonymous agents, followed by normal anonymous agent, and the worst is a transparent agent.

The proxy you find IP, is in your browser, it’s not difficult to Baidu Google,

And then use the browser to open this site:


IP address. According to the current use of so many IP addresses, this site is the most accurate.

Open this site with a proxy, if the site shows you IP proxy, then your IP is highly anonymous.

If the site shows that there are two IP, then your proxy is transparent, the first IP is yours is original, and the second IP is your proxy IP.