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What is the difference between a firewall and a proxy server?

Today we will introduce the difference between proxy server and what we often call "firewall", please see the following introduction.1, what is the firewall?The so-called firewall refers to a combination of software and hardware equipment, between the internal network and the external network, between the private network and the public network interface structure of the protection barrier, is a way to obtain security image, it is a combination of computer hardware and software, The firewall mainly consists of four parts: service access rules, authentication tools, packet filtering and application Gateway. A firewall is a piece of software or hardware that sits between a computer and the network to which it is connected. All network traffic and packets flowing in and out of the computer pass through this firewall.2. What is a proxy server?A special network service that allows one network terminal (usually a client) to make indirect connections with another network terminal (usually a server). Some network devices, such as gateways and routers, have the network proxy function. It is generally believed that proxy service helps to protect the privacy or security of network terminals and prevent attacks.The difference between the two: A firewall (ICF) is a "code wall" that separates computers from the Internet. It checks all packets coming in and out of the firewall and decides whether to block or allow those packets. The proxy server and other software is a software firewall.Above is the difference between proxy server and firewall introduction, Roxlabs proxy is the fastest residential proxy provider, for a large number of users to provide high quality HTTP,HTTPS,SOCKS5 proxy, low latency and high availability, click to get free test: https://www.roxlabs.io/

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FAQ
04-11-2021

What are the advantages of using a proxy server?

Suppose you live in the UK and try logging on to an American website to watch an educational documentary or your favourite TV show. However, you find that the UK IP address has been blocked. Don't get upset just yet, because the proxy allows you to bypass the network filters that prevent you from accessing your geographic location. Some of the content may be available for free viewing by individuals, so why can't you view or access it? As long as using a proxy doesn't seem to violate copyright law, you can use it to stream content and enjoy complete peace of mind. Good practice for legitimate use of agents Before you use a proxy server to stream any content that is blocked in your geographic location, you should carefully read the terms and conditions of the target site. This ensures that you avoid breaching any terms and conditions that may result in legal action being taken against you by the target site. At RoxLabs Proxy, we offer first-class proxies that give you instant access to your favorite online content with just a few clicks. Contact us today for more information.If you need multiple different proxy IP, we recommend using RoxLabs proxy：https://www.roxlabs.io/, including global Residential proxies, with complimentary 500MB experience package for a limited time.

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FAQ
03-11-2021

What are the benefits of using Web proxies?

Web proxy servers serve two primary purposes: network security and performance. An integrated Web proxy organization can save bandwidth costs if the server caches large files such as images and media. The cost of building a Web proxy is usually low, so IT is an inexpensive part of IT with cost-saving benefits.Anonymous internal IP addressIn today's corporate world, employees must have access to the Internet, but providing open, unrestricted access to the Internet leaves companies vulnerable to multiple threats. When an employee connects to a server controlled by the attacker, the outgoing IP address is logged on the server. Normally, this is a router IP address, but an attacker can use this IP for a denial of service (DoS) attack. It can also tell an attacker that your employees are browsing the site, enabling the attacker to create more targeted attacks, such as phishing.For a Web proxy server, the IP displayed in the Web log is the IP of the Web proxy, which means that an attacker will not be able to access the outgoing IP address of the corporate router. An attacker can still launch a DoS attack on a proxy server, but this threat is more manageable than the target internal router.Anonymous outgoing IP addresses are also important when performing sensitive operations online. For example, law enforcement conducting an investigation on a website does not want to expose the internal IP address that led investigators to return. Third party web agents will facilitate investigations and any other Internet traffic that should be anonymous.If you need multiple different proxy IP, we recommend using RoxLabs proxy：https://www.roxlabs.io/, including global Residential proxies, with complimentary 500MB experience package for a limited time.

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FAQ
03-11-2021

How do I select a proxy server

Here are three tips for choosing a proxy server that you hope will be useful. 1. The response speed of the agent. What is the response time? In short, the time it takes to access the relevant web page using an agent. Faster speeds make work more efficient, so the response speed of the agent can be regarded as the standard of whether the proxy server is working or not. 2. Proxy lifetime. The proxy IP address cannot always exist. It has a lifetime. The longer the lifetime, the more stable the proxy server. Selecting a stable proxy IP resource can reduce resource waste and cost, so it is also one of the key conditions for selecting a proxy server. 3. Quantity and geographical distribution, try to choose proxy server suppliers with more IP addresses and a wide distribution range. First, it is easy to use. Second, this kind of supplier is larger and more reliable. Here are three tips for selecting a proxy server, which are the main reference points for selecting a proxy. With the continuous development of information technology, the Internet has increasingly become an indispensable part of people's life, the status of proxy server in the Internet is also rising, many enterprises or individuals through proxy server profit.If you need multiple different proxy IP, we recommend using RoxLabs proxy：https://www.roxlabs.io/, including global Residential proxies, with complimentary 500MB experience package for a limited time.

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FAQ
03-11-2021

What is the cause of 401 error when using crawler data? How do I fix bugs?

401 Unauthorized Access Error is a known HTML Error code that you may encounter when surfing the Internet. It typically appears on sites that require user credentials. This error indicates that you do not have permission to access the requested page. So what happens when you get 401 error using crawler IP?401 Error Cause1. The URL is incorrectYou receive a 401 error message when you try to access an invalid URL.2. Incorrect login credentialsIf you enter the wrong username and password, a 401 error occurs.3. Try to access the page without loginWhen you want to request part of a site that requires you to log in securely, you will receive a 401 error message.4. The DNS errorIn rare cases, a DNS lookup error may result in a 401 error message on your browser. The site requires login information without prompting you to log in (server-side problem).Fix 401 error method1. Check whether the entered URL is correct.2. If your URL is valid but you cannot access the site, you may not be logged in to the site. Make sure you are.3. If you receive a 401 error after login, the user name or password you provided is invalid. You must provide the correct username and password. If you forget your password, please use the site's built-in password reset function to select a new password to reset the password.4. Clear your Web browser cache and cookies. When a 401 error occurs, it means that the client is not authorized to perform a particular request, and the reason behind this may be that invalid or corrupted cookies are causing the server to authenticate incorrectly.5. Temporarily disable all plug-ins and themes. To resolve the 401 error, you must disable all plug-ins and themes. Perhaps one of your plug-ins or themes generates a 401 error.6. If a DNS error is behind the 401 error, then you must refresh your DNS to remove it, and it is recommended that you maintain your Internet service regularly.

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FAQ
03-11-2021

Why not use a free proxy to grab data?

In the capture of data, due to the capture speed is too block, there will be the same IP access too frequently, at this time the site will appear to verify or directly block the local IP. At this time, you can use the proxy to access the web page instead of your IP, and the proxy IP is changed, every time after a period of time will rotate the new proxy IP to visit the website, which greatly reduces the probability of IP blocked by the website. At present, there are many proxy providers on the Internet, there are free and paid points, many people do not recommend using free proxy crawler, why is this?Free proxies are scraped in bulk from the web and, in theory, you can grab a large list of free proxies and put them on your host machine to ensure you don't get hung up by search engines. But in practice, most of these proxies don't work. Here's why:1. Free IP is overused.Because it's free, a lot of people will use it. If there are 15 people on an proxy and they are all scraping, then you will not be able to get through the search engine and your scraping will fail.2. Low security of free proxyThe use of free proxy information security can not be guaranteed, your browsing habits, information data is easy to be obtained by a third party.If there is too much doubt about the use of paid proxies, it is suggested to try it out first. Roxlabs provides a free trial of 500MB, including global residential IP, with unlimited extraction.

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FAQ
03-11-2021