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zone "excontainer.com" IN {
        type master;
        file "excontainer.com";
};
zone "47.7.33.10.in-addr.arpa" IN {
        type master;
        file "10.33.7.zone";
};
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nameserver 10.33.7.47
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@               IN SOA excontainer.com.   root.excontainer.com. (
                                        42              ; serial (d. adams)
                                        3H              ; refresh
                                        15M             ; retry
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/*
* fork_test.c
* version 1
* Created on: 2010-5-29
* Author: wangth
*/
#include <unistd.h>;
#include <stdio.h>
int main ()
{
pid_t fpid; //fpid±íʾforkº¯Êý·µ»ØµÄÖµ
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