OffsetDateTime, ZonedDateTime, Instant

The javadocs say this:

• "OffsetDateTime, ZonedDateTime and Instant all store an instant on the time-line to nanosecond precision. Instant is the simplest, simply representing the instant. OffsetDateTime adds to the instant the offset from UTC/Greenwich, which allows the local date-time to be obtained. ZonedDateTime adds full time-zone rules."

Source: https://docs.oracle.com/javase/8/docs/api/java/time/OffsetDateTime.html

Tomcat 포트(80->8080, 443->8443) 라우팅 설정

iptables 설정

• # iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8080
• # iptables -t nat -A PREROUTING -p tcp --dport 443 -j REDIRECT --to-port 8443
• # netstat -ntl or iptables -t nat -L
• # iptables restart

server.xml 변경

• <Connector port="8080" proxyPort="80" protocol="HTTP/1.1"
             connectionTimeout="20000"
             enableLookups="false"
             redirectPort="443"
             URIEncoding="UTF-8" />
• <Connector protocol="org.apache.coyote.http11.Http11NioProtocol"
         keyAlias="tomcat"
         port="8443" proxyPort="443" maxThreads="200"
         scheme="https" secure="true" SSLEnabled="true"
         keystoreFile="conf/keystore파일" keystorePass="키스토어비밀번호"
         clientAuth="false" sslProtocol="TLS" />

참고

• http://devzeroty.tistory.com/entry/Tomcat-80-443%ED%8F%AC%ED%8A%B8-NonRoot-%EA%B3%84%EC%A0%95%EC%9C%BC%EB%A1%9C-%EB%9D%84%EC%9A%B0%EA%B8%B0