Basic network knowledge (I)
VPS: (Virtual Private Server) Virtual Private Server that virtualizes one Server into multiple servers. Container technology and virtualization technology. Each VPS can be assigned an independent public IP address and
How to read a cookie string:
Copy codeThe Code is as follows:
alert(document.cookie);
The cookie string of a website contains all the cookies under the website domain name (javascript accessible, excluding httponly cookies). Multiple cookies are
The most common system environment for us to use VPS for installation is LNMP. I have been learning to install and use VPS recently. I also see many system environments available, of course, you can choose to manage the installation panel. For the
[Introduction] Domain Name Server ). Domain names and IP addresses on the Internet correspond one by one. Although domain names are easy to remember, machines can only know each other's IP addresses. The conversion between them is called domain name
After using the second-level domain name in the Blog Park today, it is found that even if the user has logged on, but the second-level domain name Blog page shows that the user has not logged on (in the form of a comment, you need to enter a
Recently, for Internet projects, you need to extract the primary domain name from the URL and find a lot from the Internet. Most of them are just from http: // query domain names/For http://youa.baidu.com/,http://www.baidu.com/ http://baidu.com/and
1. HTTPData is transmitted in plaintext.
2. HTTPS (Hyper Text Transfer Protocol Secure)
The SSL/TLS encryption and authentication functions are integrated into the HTTP protocol. encryption is performed through the SSL/TLS protocol before
What is domain name binding?
1. What is domain name binding?Domain name binding allows you to manage multiple domain names with identical records in one domain name, avoiding repeated operations on the same records of multiple domain names.Note:
1. Open the selenium-server.jar with WinRAR;
2. Search for two directories: customprofiledircustffchrome and customprofiledircustff;
3. Search for each directory until you find the file install. RDF, decompress it to a temporary directory, and
The deployment structure adopts turbogate as the Mail Gateway and Exchange Server 2007 as the intranet mail system. This deployment method prevents the Intranet exchange mail server from being directly exposed to the Internet, instead, it uses the
301 permanent redirection has no adverse effect on Seo, And the keyword ranking and PR level of Web Page A will be sent to web page B. If the website has changed its domain name, the website will be permanently transferred to another address, for
1. Reduce cookie size)
Cookie is an interesting topic. According to RFC 2109, each client can maintain a maximum of 300 cookies and a maximum of 20 cookies for each domain name. (In fact, most browsers have more than this cookie, for example,
Discuz cross-origin verification Discuz! UC
I registered a domain name mydomain.com and planned to build a main site under www. then I established the second-level domain name bbs.mydomian.com for the forum and used the popular discuz. if necessary,
The 502 error occurred when saving cookies. we made an application website. The server is linux.
After successful login, an interface will be provided to save the user's cookie.
But it is not saved successfully. at least the code is normal,
But
DNS uses both UDP and TCP port 53 at the same time. This single application protocol uses two transmission protocols at the same time, which is an alternative in the TCP/IP stack. However, few people know under what circumstances DNS uses the two
In the previous article, we talked about the Signing Method of Multi-CN using OpenSSL to sign multi-domain name certificates. In actual use, we encountered a problem. In Android, the browser does not recognize multi-CN domain names, "The certificate
Cookie is a piece of text information. Storing cookies on the client is one of the methods in which ASP. NET session States associate requests with sessions. Cookies can also be directly used to maintain data between requests, but the data will be
One of the most recent interview questions is the cross-domain problem of JavaScript. Here is a summary of some of the cross-domain approaches. Because of the browser's homologous policy, different domain names, different ports, different protocols
Internet access to the era of universal mobility, now most enterprises in addition to the construction of PC-side official website, there is also the construction of mobile phone site, in mobile users more than the PC-end users, enterprises and how
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