ModSecurity requires mod_unique_id to be installed.
安装ModSecurity后，试验网站后。
查看日志
tail -f /var/log/httpd/error_log
出现如下报错：
Wed Mar 15 16:44:24 2017] [error] ModSecurity: ModSecurity requires mod_unique_id to be installed.
[Wed Mar 15 16:44:24 2017] [error] [client 172.26.18.108] PHP Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Chongqing' for 'CST/8.0/no DST' instead in /usr/local/centreon/www/class/centreonGMT.class.php on line 141, referer:
http://172.27.206.7/centreon/main.php?p ... 0and%201=1
[Wed Mar 15 16:44:24 2017] [error] ModSecurity: ModSecurity requires mod_unique_id to be installed.
经过试验，
cp /usr/local/src/modsecurity-2.9.1/unicode.mapping /etc/httpd/conf/
需要修改配置文件：
vi httpd.conf
#LoadModule unique_id_module modules/mod_unique_id.so 去掉注解
然后重启appach
service httpd reload
service httpd restart
查看日志
tail -f /var/log/httpd/error_log
[Thu Mar 16 10:40:37 2017] [error] [client 172.26.18.108] ModSecurity: collection_retrieve_ex: Unable to retrieve collection (name "ip", key "172.26.18.108_cd85a82133a70fed9906fed8b8960aec0bf92efa"). Use SecDataDir to define data directory first. [hostname "172.27.206.7"] [uri "/centreon/include/common/javascript/autologoutXMLresponse.php"] [unique_id "WMn7JawbzgcAAD9nEXIAAAAH"]
[Thu Mar 16 10:40:37 2017] [error] [client 172.26.18.108] ModSecurity: Warning. Pattern match "^[\\\\d.:]+$" at REQUEST_HEADERS:Host. [file "/etc/httpd/modsecurity-crs/rules/REQUEST-920-PROTOCOL-ENFORCEMENT.conf"] [line "793"] [id "920350"] [rev "2"] [msg "Host header is a numeric IP address"] [data "172.27.206.7"] [severity "WARNING"] [ver "OWASP_CRS/3.0.0"] [maturity "9"] [accuracy "9"] [tag "application-multi"] [tag "language-multi"] [tag "platform-multi"] [tag "attack-protocol"] [tag "OWASP_CRS/PROTOCOL_VIOLATION/IP_HOST"] [tag "WASCTC/WASC-21"] [tag "OWASP_TOP_10/A7"] [tag "PCI/6.5.10"] [hostname "172.27.206.7"] [uri "/centreon/include/common/javascript/autologoutXMLresponse.php"] [unique_id "WMn7JawbzgcAAD9nEXIAAAAH"]
[Thu Mar 16 10:40:37 2017] [error] [client 172.26.18.108] PHP Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Asia/Chongqing' for 'CST/8.0/no DST' instead in /usr/local/centreon/www/class/centreonGMT.class.php on line 141, referer:
http://172.27.206.7/centreon/main.php?p=60801
问题解决，规则已经生效了。