How to modify the Apache configuration file and make it take effect

Confused about modifying the Apache configuration file and taking effect today, the number of Apache connections was modified as follows: [plain] When <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 10 ServerLimit 2048 MaxClients 2000 MaxRequestsPerChild 0 </IfModule> does not take effect after [plain] apachectl restart, the maximum number of connections stays at the default 256. After a few hours of tossing, I accidentally used [plain] apachectl stop apachectl start to succeed. I was so depressed! In fact, I have encountered such a problem before, but I forgot to write it here today to avoid forgetting it after a long time. The following is an overview of restart on the Apache official website [plain] apachectl-k restart Sending the HUP or restart signal to the parent causes it to kill off its children like in TERM, but the parent doesn' t exit. it re-reads its configuration files, and re-opens any log files. then it spawns a new set of children and continues serving hits.