php dns server

Improve the speed of web pages, generally we will choose to use a CDN, using the "nearest principle" to allow users in the shortest possible time to obtain the server resources, the actual application of the use of CDN to improve the speed of

The experiment uses four virtual machines to build, originally the database as the core of the site, can not be placed on the DNS server, here due to the limit of the number of virtual machines, can only be temporarily placed on the DNS server to

I. What is Squid? Squid is a software used to buffer Internet data. In this way, it implements its function by accepting requests from the target (object) that people need to download and processing these requests as appropriate. That is to say, if

I. DNS basics [DNS System (server) Working Principle and attack protection methodology] DNS: Domain Name System, the Domain Name resolution server. Its role on the Internet is to convert the Domain Name into an IP address that can be recognized by

PowerDNS can run on a free open-source DNS server of Linux/Unix derivative version. It can be configured using different backend servers, including BIND-type Regional files and relational databases, or load balancing/failover algorithms. It can also

During the stress tests of the linux dns cache and NSCD service over the past two days, it was found that using webbench to press a domain name is several times slower than that of an IP address, and the nginx concurrency is also low when the domain

Linux DNS cache, NSCD serviceThese two days to do stress test, found that with webbench pressure domain name than the pressure IP address several times slower, and pressure domain name when nginx concurrency is also very low. Repeated tests many

During the stress tests of the linux dns Cache and NSCD service over the past two days, it was found that using webbench to press a domain name is several times slower than that of an IP address, and the nginx concurrency is also low when the domain

DNS resolution of PHPcurl (the curl in PHP is slow): 1. use the curl function in the project to call an interface and find that the response is slow. 2. change the host address to the IP address of the Interface Server, fast response? First, we made

The company applied for a fixed IP address from China Unicom, and then set up a website server in its data center. This server requires its own DNS to access the internet. after The DNS is configured on the server (centos, there is no problem with