dns query

Most of the network traffic is based on TCP/IP, while TCP/IP traffic is based on IP address, but in the real network access who is willing to use IP address, because the IP address we remember inconvenient. To solve this problem, DNS is available.

The performance interface provided by HTML5 accurately tells us the precise time (timestamp) of each processing phase of the current webpage when accessing a website page, so as to facilitate front-end analysis. It is a direct implementation of the

The DNS server provides services to convert host names and domain names to IP addresses. Why do I need to convert host names and domain names to IP addresses? This is because when a client on the network accesses resources on a serverThe Host Name

DNS software is a target that hackers are keen on and may cause security problems. Here are some of the most effective methods to protect DNS servers. (Related articles: protecting the security of Win2003 network servers)1. Use a DNS Forwarder A dns

What should I do if my website is hijacked? Whether the domain name is walled. How to detect DNS pollution. Website hijacking Detection Website opening speed detection. Checks whether a website is hacked, hacked, changed its title, or hacked.   I

1. Using DNS Forwarders DNS forwarders are for other DNS servers The DNS server that completes the DNS query. The primary purpose of using DNS forwarders is to mitigate the pressure of DNS processing, to transfer query requests from DNS servers to

I. Overview Now to deal with DNS domain name resolution, in fact, this is a previous article in C + + to implement the remaining problems in Ping, to do the work is the process of the ping Red Line part: CMD under the Domain Name Resolution

DNS ServerIt is a domain name system or Domain Name Service. The domain name system assigns domain name addresses and IP addresses to hosts on the Internet. DNS software is a target that hackers are keen on and may cause security problems. This

Principle of CDN small files The following are some of my personal knowledge, which may be incomplete or even incorrect, but I hope you can help us to correct them. Before a vro, it is possible to make optical splitting/image (Personal sensory

1. Use a DNS Forwarder The DNS forwarder is for another DNS Server The DNS server that completes the DNS query. The main purpose of using a DNS forwarder is to reduce the pressure on DNS processing, forward query requests from the DNS server to the

From the 07 of the Estonian DDoS information war, to this year Guangxi Nanning 30 internet cafes suffered from DDoS ransomware, and then to the Sina network suffered a DDoS attack can not provide external services for more than 500 minutes. DDoS

The following are some of my personal knowledge, which may be incomplete or even incorrect, but I hope you can help us to correct them.1. first, the customer needs to resolve the domain name to an IP address to access the webpage. The customer needs

Use the thread to add timeout restrictions for InetAddress. getByName () DNS queries. Although the Socket class has the setTimeout () method and URLConnection has the setConnectTimeout () method, this does not add a time limit to the DNS query

PremiseIn-depth understanding of URLs, URIs and other concepts, or learning about socket-related knowledge, it is necessary to systematically understand some of the Internet-related basic knowledge.Internet addressA device connected to the Internet (

The performance interface provided by HTML5 precisely tells us the exact time (timestamp) of each processing stage of the current page when accessing a site page, so that we could conduct front-end analysis.It is a direct implementation of the

When we do penetration testing, we need to know how the Internet is handling requests between the client and the server side. This article reproduces an article in detail to introduce the processing of a Web request process.We need to understand the

Welcome to the Windows community forum, and interact with 3 million technical staff to access the DNS software, which is a target of cyberattacks and may cause security problems. This article provides 10 most effective methods to protect DNS servers.

There are differences in the responsiveness of users to websites in different geographies, in order to improve the responsiveness of user access and to optimize the flow of information in existing Internet, you need to join the middle tier

Article Title: Set up a proxy server in Linux (1 ). Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. I. Proxy

The most direct and effective way to effectively reject spam from Malicious spam source sites and/or from the exploited spam source site is to reject the connection from this source. Theoretically, this may also reject normal emails from the site,