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As shown in the above figure, when the action corresponding to the iptables rule in host 156 is REJECT, when pinging from host 146, it directly prompts "the target is unreachable" and is not stuck there as before. It seems that REJECT is more "straightforward" than DROP.The following. Represents the current directory of the relative path, or /root/docker_demo if the full path is required (that is, find the Dockerfile file)Adapter pattern of objects: When you want to convert an object into an object that meets another new interface, you can create a Wrapper class, hold an instance of the original class, and in the method of the Wrapper class, just call the method of the instance.It is understood that the second season of the program will debut on July 15, 2018 and will be broadcast on CCTV Financial Channel from 19: 00 to 20: 30 every Sunday, with a total of 25 issues. The 26th Charm Ceremony will be broadcast on January 1, 2019.Speaking of which, the key question comes, that is, how does one capture an event? This involves the bubbling of the incident.……这几天，寻秦记这个词语以一种蛮横的方式，闯进大众的视线。(4) snmp magnification attack