12345Proxy allows you to browse your favorite websites fast and anonymous. Bypass your work or school's firewall that may be blocking you. While you surf here you are anonymous, your IP address will not be tracked. Privacy is important and using 12345Proxy will allow you to keep your identity hidden.
Here at 12345Proxy, we are against the use of software that prevents full access to the internet, and for that reason we freely offer our service to everyone. Using our service, you can access websites that are blocked by your network. Our servers are fast and able to handle most websites.
Our proxy also hides your IP, by routing your connection through our servers.
Currently the proxy server can be divided into the following three types
What is VPN?
A Virtual Private Network (VPN) is a network technology that creates a secure network connection over a public network such as the Internet or a private network owned by a service provider. Large corporations, educational institutions, and government agencies use VPN technology to enable remote users to securely connect to a private network.
A VPN can connect multiple sites over a large distance just like a Wide Area Network (WAN). VPNs are often used to extend intranets worldwide to disseminate information and news to a wide user base. Educational institutions use VPNs to connect campuses that can be distributed across the country or around the world.
In order to gain access to the private network, a user must be authenticated using a unique identification and a password. An authentication token is often used to gain access to a private network through a personal identification number (PIN) that a user must enter. The PIN is a unique authentication code that changes according to a specific frequency, usually every 30 seconds or so.
There are a number of VPN protocols in use that secure the transport of data traffic over a public network infrastructure. Each protocol varies slightly in the way that data is kept secure.
IP security (IPSec) is used to secure communications over the Internet. IPSec traffic can use either transport mode or tunneling to encrypt data traffic in a VPN. The difference between the two modes is that transport mode encrypts only the message within the data packet (also known as the payload) while tunneling encrypts the entire data packet. IPSec is often referred to as a "security overlay" because of its use as a security layer for other protocols.
Secure Sockets Layer (SSL) and Transport Layer Security (TLS) use cryptography to secure communications over the Internet. Both protocols use a "handshake" method of authentication that involves a negotiation of network parameters between the client and server machines. To successfully initiate a connection, an authentication process involving certificates is used. Certificates are cryptographic keys that are stored on both the server and client.
Point-To-Point Tunneling Protocol (PPTP) is another tunneling protocol used to connect a remote client to a private server over the Internet. PPTP is one of the most widely used VPN protocols because of it's straightforward configuration and maintenance and also because it is included with the Windows operating system.
Layer 2 Tunneling Protocol (L2TP) is a protocol used to tunnel data communications traffic between two sites over the Internet. L2TP is often used in tandem with IPSec (which acts as a security layer) to secure the transfer of L2TP data packets over the Internet. Unlike PPTP, a VPN implementation using L2TP/IPSec requires a shared key or the use of certificates.
VPN technology employs sophisticated encryption to ensure security and prevent any unintentional interception of data between private sites. All traffic over a VPN is encrypted using algorithms to secure data integrity and privacy. VPN architecture is governed by a strict set of rules and standards to ensure a private communication channel between sites. Corporate network administrators are responsible for deciding the scope of a VPN, implementing and deploying a VPN, and ongoing monitoring of network traffic across the network firewall. A VPN requires administrators to be continually be aware of the overall architecture and scope of the VPN to ensure communications are kept private.
Advantages and Disadvantages
A VPN is a inexpensive effective way of building a private network. The use of the Internet as the main communications channel between sites is a cost effective alternative to expensive leased private lines. The costs to a corporation include the network authentication hardware and software used to authenticate users and any additional mechanisms such as authentication tokens or other secure devices. The relative ease, speed, and flexibility of VPN provisioning in comparison to leased lines makes VPNs an ideal choice for corporations who require flexibility. For example, a company can adjust the number of sites in the VPN according to changing requirements.
There are several potential disadvantages with VPN use. The lack of Quality of Service (QoS) management over the Internet can cause packet loss and other performance issues. Adverse network conditions that occur outside of the private network is beyond the control of the VPN administrator. For this reason, many large corporations pay for the use of trusted VPNs that use a private network to guarantee QoS. Vendor interoperability is another potential disadvantage as VPN technologies from one vendor may not be compatible with VPN technologies from another vendor. Neither of these disadvantages have prevented the widespread acceptance and deployment of VPN technology.
What is a SOCKS proxy server?
Though this protocol was developed long ago enough, it is rather new (compared to the HTTP proxy). SOCKS allows to work with any (version SOCKS 4 - with TCP, SOCKS 5 - with TCP and UDP) protocols. A socks proxy simply transfers data from a client to a server, not penetrating into this data contents (therefore it can work with HTTP, FTP, SMTP, POP3, NNTP, etc.).
Anonymity of a SOCKS Proxy
As SOCKS (as it was already marked above) transfers all data from a client to a server, nothing adding from itself, from the point of view of a web-server, a socks proxy is a client. Therefore anonymity of this type of proxy servers is really always absolute.
Using SOCKS Proxies
At present time there exist 2 versions of the SOCKS protocol: 4 and 5. The 4th version, as it appeared earlier, is more widespread. However, now the 5th version is also supported by many popular programs such as ICQ (old ICQ versions, in general, could use only SOCKS proxies), Napster, AudioGalaxy, Emule etc. Generally speaking, as a SOCKS proxy can "proxy" any TCP / UDP protocol, it could be used also by mail programs, but they do not do it. Therefore, for such programs (which cannot work with socks) there was developed a special software automatically enabling TCP and UDP networking client applications to traverse a SOCKS server.
What is HTTP proxy server?
HTTP proxy server is a proxy, allowing working on the Internet with HTTP and (not always) FTP protocols. It (as well as other proxy servers) can carry out caching of information downloaded from the Internet.
Let's have a more detailed look over its abilities.
Anonymity of HTTP Proxy
HTTP proxy servers have several anonymity levels. It depends on purposes, which a proxy is used for, so an anonymity requirement is not always an essential one. Conditionally HTTP proxy servers by their anonymity degree could be divided onto:
Transparent - these proxies are not anonymous. They, first, let a web server know that there is used a proxy server and, secondly, "give away" an IP-address of a client. The task of such proxies, as a rule, is information caching and/or support of Internet access for several computers via single connection.
Anonymous - these proxy servers let a remote computer (web-server) know, that there is used a proxy, however, they do not pass an IP-address of a client.
Distorting - unlike the previous type, they transfer an IP-address to a remote web-server, however, this address is a phantom: randomly generated by a proxy server or any fixed (not your) IP. So, these proxies distort your IP address from the point of view of a web-server.
High anonymous (elite) - they do not send your IP-address to a remote computer. Also, they do not inform that there is used any proxy server! So, a web-server "thinks" that it works directly with a client.
This anonymity classification is rather conventional. There are many other classifications, specifying / expanding / generalizing this one.
Using HTTP Proxies
Now HTTP proxy servers are the most widespread. Their support (ability to use them) is included into many programs: browsers, download managers etc. However, their support is not realized at a level of an operating system - in order to use them, you should configure all programs, which should use proxies, in an appropriate way