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iptables - [RI] chain rule num rule-specification[option]
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <sys/types.h>
#include <sys/wait.h>
#define QLEN 20
# ......
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