dns online resolver

We may encounter DNS resolution errors during the online process, that is, when we access a domain name, we cannot resolve it to an IP address, however, you can directly enter the website IP address for normal access, which is caused by a DNS

Domain Name System DNS mainly resolves the domain name and IP address conversion, it is designed as an online distributed database system, and the use of customer-server model. One of the advantages of DNS is that most domain names are parsed

Nginx OCSP stapling configuration, nginxocspstapling Nginx OCSP stapling configuration. Correct OCSP stapling configuration can improve HTTPS performance. What is OCSP stapling? OCSP stands for Online Certificate Status Protocol, that isOnline

(a) brief descriptionNginx can not only do reverse proxy, but also can be used as a forward proxy to the Internet and other functions. Forward Proxy: If you think of the internet outside the LAN as a huge repository, then the client in the LAN to

Ubuntu is slow to surf the internet. That's right. Don't doubt it, Ubuntu is really slower than Windows. Where is the slow?In Ubuntu 9.10, when you use Firefox to browse the Web, you will find that in the bottom left corner of the status bar, a long

This is a creation in Article, where the information may have evolved or changed. When we browse the Web, we open the browser, enter the URL and press ENTER, then we will show you what you want to see. What is hidden behind this seemingly simple

Hello, everyone! I am the CEO of the search fee. I am very glad to meet you here, I very much hope and everyone Frank to make a friend, share our experience as a webmaster. The stability of the site, and speed, is a search engine is one of the

One, Varnish, Nginx, squid the advantages and disadvantages of their respective cachesTo do the cache service, we must choose the professional cache service, the first choice squid and varnish. Varnish Nginx Squid

Installation methodwget http://www.dnspython.org/kits/1.9.4/dnspython-1.9.4.tar.gzTAR-ZXVF dnspython-1.9.4.tar.gzCD dnspython-1.9.4Python setup.py InstallBecause usually in the test dudns or Jomodns when some operations manual completion

The following is a draft of "the performance of Open source Applications" (POSA) and the successor to the Architecture of open source applications.Posa includes a number of papers on performance optimization and design, as well as performance