[정보] 아파치 CloudFlare IP Whitelist 설정
$CATALINA_BASE/conf/web.xml
또는
WEB-INF/web.xml 파일 수정
<filter>
<filter-name>Remote CIDR Filter</filter-name>
<filter-class>org.apache.catalina.filters.RemoteCIDRFilter</filter-class>
<init-param>
<param-name>allow</param-name>
<param-value>127.0.0.1, 2400:cb00::/32, 2606:4700::/32, 2803:f800::/32, 2405:b500::/32, 2405:8100::/32, 2a06:98c0::/29, 2c0f:f248::/32, 173.245.48.0/20, 103.21.244.0/22, 103.22.200.0/22, 103.31.4.0/22, 141.101.64.0/18, 108.162.192.0/18, 190.93.240.0/20, 188.114.96.0/20, 197.234.240.0/22, 198.41.128.0/17, 162.158.0.0/15, 104.16.0.0/13, 104.24.0.0/14, 172.64.0.0/13, 131.0.72.0/22</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>Remote CIDR Filter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>