What Does The Word Proxy Mean
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Proxy | Definition of Proxy by Merriam-Webster
1: a person who is given the power or authority to do something (such as to vote) for someone else
Since I wouldn’t be available to vote, I nominated him to act as my proxy.
2: power or authority that is given to allow a person to act for someone else
1: the agency, function, or office of a deputy who acts as a substitute for another
2a: authority or power to act for another
b: a document giving such authority
specifically: a power of attorney authorizing a specified person to vote corporate stock
3: a person authorized to act for another: procurator
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About proxy servers – Indiana University Knowledge Base
A proxy server, also known as a “proxy” or “application-level gateway”, is a computer that acts as a gateway between a local network (for example, all the computers at one company or in one building) and a larger-scale network such as the internet. Proxy servers provide increased performance and security. In some cases, they monitor employees’ use of outside resources.
A proxy server works by intercepting connections between sender and receiver. All incoming data enters through one port and is forwarded to the rest of the network via another port. By blocking direct access between two networks, proxy servers make it much more difficult for hackers to get internal addresses and details of a private network.
Some proxy servers are a group of applications or servers that block common internet services. For example, an HTTP proxy intercepts web access, and an SMTP proxy intercepts email. A proxy server uses a network addressing scheme to present one organization-wide IP address to the internet. The server funnels all user requests to the internet and returns responses to the appropriate users. In addition to restricting access from outside, this mechanism can prevent inside users from reaching specific internet resources (for example, certain websites). A proxy server can also be one of the components of a firewall.
Proxies may also cache web pages. Each time an internal user requests a URL from outside, a temporary copy is stored locally. The next time an internal user requests the same URL, the proxy can serve the local copy instead of retrieving the original across the network, improving performance.
Do not confuse a proxy server with a
NAT (Network Address Translation) device. A proxy server connects to, responds to, and receives traffic from the internet, acting on behalf of the client computer, while a NAT device transparently changes the origination address of traffic coming through it before passing it to the internet.
For those who understand the OSI (Open System Interconnection) model of networking, the technical difference between a proxy and a NAT is that the proxy server works on the transport layer (layer 4) or higher of the OSI model, whereas a NAT works on the network layer (layer 3).
This is document ahoo in the Knowledge Base.
Last modified on 2018-11-15 11:25:00.
Proxy: In a Sentence
Definition of Proxyone who has been given permission to act for anotherExamples of Proxy in a sentence When my husband and I are out of the country, my sister is the proxy who signs legal documents for our children. John’s proxy has been authorized to vote for him during his absence. During the action sequence, a stand-in will act as a proxy for the A-list actor. The vice-principal will act as proxy for the vacationing principal. Because the billionaire is ill, his son will attend the shareholder’s meeting as his proxy. Most Searched Words (with Video)
Frequently Asked Questions about what does the word proxy mean
What is an example of a proxy?
A person empowered to act for another. Proxy is a stand-in for someone else, the authority to stand-in for or represent someone else, or a document giving permission for someone else to vote on your behalf. … An example of proxy is when you register to vote and have someone else actually cast your ballot.
What does it mean to be a proxy to someone?
1 : a person who is given the power or authority to do something (such as to vote) for someone else Since I wouldn’t be available to vote, I nominated him to act as my proxy. 2 : power or authority that is given to allow a person to act for someone else.
What does proxy mean in computer terms?
A proxy server, also known as a “proxy” or “application-level gateway”, is a computer that acts as a gateway between a local network (for example, all the computers at one company or in one building) and a larger-scale network such as the internet. Proxy servers provide increased performance and security.Nov 15, 2018