Because the website several times by the person to make the concurrency to cross, so Baidu has a bunch of methods. One of these is the ability to limit the amount of IP access to Apache. Large concurrent access to the same IP is not allowed.
Mounting module
Yum Install mod_limitipconn.x86_64-y
Configuration file
# ll/etc/httpd/conf.d/1475 limitipconn.conf
The following settings can be made directly within the website
# vim/etc/httpd/conf/httpd.conf ... 192.168. 0.1:>/var/www/htmlservername www.myweb.com<ifmodule mod_ limitipconn.c> <location/> # This means limiting the root directory, which is the full limit, which can be modified as needed 2 # here represents up to two threads at a time NoLimit HTML /* # This means that the HTML directory is not restricted </location></ifmodule>
Apache uses the Mod_limitipconn module to restrict client-side multi-threaded downloads