A combination of negative factors can lead to failures in performance. External causes External negative impacts are associat with a variety of hacker attacks on the server, projects link to it, mail, databases, sudden increases in traffic, intensive scanning of the resource by system robots. Using monitoring tools, it is necessary to track: Hacking using software that selects a set of characters bas on the login/password principle. A sharp increase in traffic due to an effective advertising campaign. DDoS attacks and the associat flow of pseudo visitors.
Sending out various types of spam
Large-scale corporate mailings that overload the mail resource. Incorrect caching settings. Re-indexing of web pages initiat by gambling data japan an attacker. Parsing. Impact of loading dynamic content. Weaknesses of the xmlrpc.php file that allow hacking and connecting the resource to a botnet. Internal reasons In addition to external “enemies”, there may also be internal ones.
Outdat resource codes, errors in settings affect the stable operation of the server
These are not all the reasons, there are also: Website infection with viruses; Connect to applications via API; Software bugs; Using Apache when the regulations impose using graphics (the architecture allows only one request to be process per thread); Unoptimiz JavaScript code, rapidly growing database; Increas CPU consumption by MySQL DB. How to fix an overload server It is necessary to identify the cause of the site’s performance decline and then begin to eliminate it.
This could be: Setting up correct caching settings
Using php.ini to configure PHP; Optimizing MySQL with my.conf. Replacing the Apache web server with Nginx, whose architecture buying house b is asynchronous, allows handling multiple connections, unlike the first one; Compression of graphic files; Elimination of errors in codes; Selecting a hosting company that can provide DDoS protection. As a preventive measure, it is recommend to stay up to date with antivirus software updates and secure methods of connecting to remote sites.