?????????????
????1??????IP????????????????c1??c2??c3??c4??ip???????192.168.0.1??192.168.0.2??192.168.03??192.168.0.4??
????#vi /etc/sysconfig/network-script/ifcfg-eth[0??1??2??3]???????????????????????????????
????#service network restart
???????????????????????
????2?????????????c1??c2??c3??c4
????#vi /etc/sysconfig/network
????HOSTNAME=c1
????c2??c3??c4??????c1???
???????磺
????[root@c2 ~]# cat /etc/sysconfig/network
????NETWORKING=yes
????HOSTNAME=c2
???????????SSH???????????root???￡?
????1??????/etc/hosts???
????#vi /etc/hosts   ??hosts????????????￡?
127.0.0.1 localhost.localdomain localhost
192.168.0.1   c1
192.168.0.2   c2
192.168.0.3   c3
192.168.0.4   c4
???????磺
[root@c2 ~]# cat /etc/hosts
# Do not remove the following line?? or various programs
# that require network functionality will fail.
127.0.0.1       localhost.localdomain   localhost
192.168.0.1    c1
192.168.0.2    c2
192.168.0.3    c3
192.168.0.4    c4
????2????c1????SSH?????.
????#ssh-keygen -t rsa ????????????.ssh?????
??????????????????????????д??/root/.ssh/id_rsa.pub?????д??/root/.ssh/id_rsa
????#ls -a   ???????.ssh?????
????3??????authorized_keys?????????c2??????????
????#scp /root/.ssh/id_rsa.pub 192.168.0.2:/root/.ssh/
????#ssh 192.168.0.2  cat /.ssh/id_rsa.pub>>/root/.ssh/authorized_keys
??????c2 ?????authorized_keys?????????id_rsa.pub????????c2?????
????#scp /root/.ssh/id_rsa.pub 192.168.0.2  /.ssh/authorized_keys
????????id_rsa.pub????????????
????4???????root??
????#cd ..
????5???????????????????
????#ssh c2     ?????????yes???????????????
????????c1??c3??c4???????c1???