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ubuntu: ÐÞ¸ÄΪmaserat1
1) ÐÞ¸Ä /etc/hostname
master1
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127.0.0.1 localhost.localdomain localhost
172.16.111.102 master1.localdomain master1
172.16.111.103 slaver1.localdomain slaver1
172.16.111.106 slaver2.localdomain slaver2
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Redhat  ÐÞ¸ÄΪslaver2
1) ÐÞ¸Ä /etc/sysconfig/network
NETWORKING=yes
NETWORKING_IPV6=no
#HOSTNAME=localhost.localdomain
HOSTNAME=slaver2
2£© /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1               localhost.localdomain localhost
::1             localhost6.localdomain6 localhost6
172.16.111.102 master1.localdomain master1
172.16.111.103 slaver1.localdomain slaver1
172.16.111.106 slaver2.localdomain slaver2
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printf("this is in test_a...\n");
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