{"id":4981,"date":"2018-07-16T15:15:25","date_gmt":"2018-07-16T19:15:25","guid":{"rendered":"https:\/\/www.pair.com\/support\/kb\/?post_type=ht_kb&#038;p=4981"},"modified":"2019-02-04T12:59:05","modified_gmt":"2019-02-04T17:59:05","slug":"what-is-mod_security2","status":"publish","type":"ht_kb","link":"https:\/\/www.pair.com\/support\/kb\/what-is-mod_security2\/","title":{"rendered":"What is mod_security2?"},"content":{"rendered":"<p class=\"p1\"><span class=\"s1\"><a style=\"color:#fff; text-decoration:none!important;\" href=\"https:\/\/www.pair.com\/support\/kb\/tags\/vps\/\"><p style=\"background-color:#1a3d6e !important;color:#fff;padding:6px; display:inline-block!important;font-size:12px;font-weight:bold; border-radius:3px;\">VPS<\/p><\/a> <a style=\"color:#fff; text-decoration:none!important;\" href=\"https:\/\/www.pair.com\/support\/kb\/tags\/qs-dedicated\/\"><p style=\"background-color:#1a3d6e !important;color:#fff;padding:6px; display:inline-block!important;font-size:12px; font-weight:bold; border-radius:3px;\">Dedicated<\/p><\/a><\/span><\/p>\n<p><span style=\"font-weight: 400;\">mod_security2 is a web application firewall (WAF). On certain servers, this module can be added in the Apache Options interface. To learn about adding modules to your VPS or Dedicated server, see our <\/span><a href=\"https:\/\/www.pair.com\/support\/kb\/how-to-add-and-remove-your-apache-modules\/\"><span style=\"font-weight: 400;\">How to Add and Remove Your Apache Modules article<\/span><\/a><span style=\"font-weight: 400;\">. <\/span><\/p>\n    \t\t<div class=\"hts-messages hts-messages--alert   hts-messages--withicon \"   >\r\n    \t\t\t    \t\t\t    \t\t\t\t<p>\r\n    \t\t\t\t\t<span style=\"font-weight: 400;\">The Apache modules and Apache Option interface will only appear on compatible servers. If you do not see mod_security2 in the Apache Options interface, it is likely that your server is outdated and not compatible. If you would like to update your server, please contact <\/span><a href=\"mailto:qs@pair.com\"><span style=\"font-weight: 400;\">our support team<\/span><\/a><span style=\"font-weight: 400;\">. <\/span>    \t\t\t\t<\/p>\r\n    \t\t\t    \t\t\t\r\n    \t\t<\/div><!-- \/.ht-shortcodes-messages -->\r\n    \t\t\n<p><span style=\"font-weight: 400;\">When the mod_security2 module is added on one of our servers, we automatically install it with the OWASP Core Rule Set (CRS). OWASP CRS is a list of rules created for WAFs and protects against a variety of common attacks, like SQL injection, cross-site scripting, and local file inclusion. You can find a full list of common attacks that the OWASP Core Rule Set protects in this <\/span><a href=\"https:\/\/modsecurity.org\/crs\/\"><span style=\"font-weight: 400;\">OWASP CRS article<\/span><\/a><span style=\"font-weight: 400;\">. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Our installations use the recommended configuration. However, if you require a custom configuration, <\/span><a href=\"mailto:qs@pair.com\"><span style=\"font-weight: 400;\">our support team<\/span><\/a><span style=\"font-weight: 400;\"> can assist you. <\/span><\/p>\n    \t\t<div class=\"hts-messages hts-messages--danger  hts-messages--withtitle hts-messages--withicon \"   >\r\n    \t\t\t<span class=\"hts-messages__title\">Warning<\/span>    \t\t\t    \t\t\t\t<p>\r\n    \t\t\t\t\t<span style=\"font-weight: 400;\">Enabling mod_security2 can affect site speed and falsely block legitimate traffic. We recommend that you use this module with caution.<\/span>    \t\t\t\t<\/p>\r\n    \t\t\t    \t\t\t\r\n    \t\t<\/div><!-- \/.ht-shortcodes-messages -->\r\n    \t\t\n","protected":false},"excerpt":{"rendered":"<p>mod_security2 is a web application firewall (WAF). On certain servers, this module can be added in the Apache Options interface. To learn about adding modules to your VPS or Dedicated server, see our How to Add and Remove Your Apache Modules article. When the mod_security2 module is added on one&#8230;<\/p>\n","protected":false},"author":11,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":[],"ht-kb-category":[175],"ht-kb-tag":[193,178,177],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is mod_security2? - Knowledge Base - Pair Networks<\/title>\n<meta name=\"description\" content=\"mod_security2 is a web application firewall (WAF). 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