@ Zheng yu Summary
I. symptom: Java httpclient initiates an HTTP request to the WebService interface under the x××× open. x××. com domain name from the master station data center, which is extremely slow. Troubleshooting:
1.1. wget test
Cause: If IPv6 is enabled, curl will resolve IPv6 first by default. if the corresponding domain name does not have IPv6, wait until IPv6dns resolution fails timeout before looking for IPv4 in the previous normal process, in the program...
Cause: If
Reason:
If the Ipv6,curl is turned on by default, the IPV6 will be resolved first, and if the corresponding domain name is not IPv6, it will wait for IPV6 DNS resolution to fail to find IPv4 in accordance with the previous normal process. In the
Linux Command curl command details, linux Command curl detailsCommand: curlIn linux, curl is a File Transfer tool that uses URL rules to work under the command line. It can be said that it is a powerful http command line tool. It supports file
Cause:If IPv6 is enabled, curl will resolve IPv6 first by default. If the corresponding domain name does not have IPv6, curl will wait until the IPv6 dns resolution fails timeout before looking for IPv4 in the previous normal process. In the program,
Linux curl is a file transfer tool that uses URL rules to work at the command line. It supports the uploading and downloading of files, so it is a comprehensive transmission tool, but traditionally, the URL is used as the download tool.
One, Curl
Cause:If IPv6 is enabled, curl will resolve IPv6 first by default. If the corresponding domain name does not have IPv6, curl will wait until the IPv6 dns resolution fails timeout before looking for IPv4 in the previous normal process. In the program,
A brief introduction to the difference between curl and Libcurl
This article mainly introduces the difference between Curl and libcurl, this article explains Curl Introduction, Libcurl Introduction, curl and libcurl contrast, "curl" different
Curl is a file transfer tool that uses URL syntax to work in a command-line manner. It supports many protocols: FTP, FTPS, HTTP, HTTPS, GOPHER, TELNET, DICT, FILE, and LDAP. Curl also supports HTTPS authentication, HTTP POST method, HTTP put method,
Instruction: CurlIn Linux, Curl is a file transfer tool that works under the command line using URL rules, which can be said to be a powerful HTTP command-line tool. It supports file upload and download, is a comprehensive transfer tool, but by
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