?????.??????????
?????????linux????????????????? uname -n ?? hostname????
???????(???)??????
????[zhang@localhost etc]$ uname -n
????localhost.localdomain
????[zhang@localhost etc]$ hostname
????localhost.localdomain
????1.??? ?????????
??????? hostname newhost ??????????????????Ч??
????2.?????????
?????????????? /etc/sysconfig/network
???????(???)??????
????[zhang@localhost etc]$ cat /etc/sysconfig/network
????NETWORKING=yes
????HOSTNAME=localhost.localdomain
??????????????????Ч??
????3.??????? /etc/hosts ??????
???????????????????? IP ?? ????????????? IP???? ?????????á?
????????????
????IP       ?????????     ?????????
????cat /etc/hosts
???????(???)??????
????127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
????::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
????10.10.10.128 namenode master
??????.???t??IP
??????root ???
?????????????????
????vi /etc/sysconfig/network-script/ifcfg-eth0
???????????
??????i?????б?
???????
????DEVICE=eth0                                #?????豸??
????IPADDR=10.10.10.128                   #IP???
????NETMASK=255.255.255.0            #?????
????NETWORK=10.10.10.1                #??????(????)
????BROADCAST=10.10.10.255       #?????????????
????GATEWAY=10.10.10.1                 #??????
????ONBOOT=yes                                  # [yes|no]?????????????豸??
????USERCTL=no                                  #[yes|no]????root??????????????豸??
????BOOTPROTO=static     #[none|static|bootp|dhcp]????????????Э??|???????|BOOTPЭ??|DHCPЭ?飩
??????????DNS???????
????vi /etc/resolv.conf
???????????
??????i?????б?
???????
????nameserver 202.109.14.5             #??DNS
????nameserver 219.141.136.10         #??DNS
????search localdomain
????????????????????????????????????service network restart     ??/etc/init.d/network restart