[root@linux-tys root]# rpm -qa | grep bind

bind-9.2.1-16 -----這個版本的DNS不太穩定，所以要升級到9.2.1之上的版本

redhat-config-bind-1.9.0-13

bind-utils-9.2.1-16

ypbind-1.11-4

1、刪除9.2.1的包，因這個版本不太穩定

[root@linux-tys root]# rpm -e bind-9.2.1-16 ----刪除包時可以看到提示有關聯的包，需要先刪除

error: Failed dependencies:

bind is needed by (installed) redhat-config-bind-1.9.0-13

bind is needed by (installed) caching-nameserver-7.2-7

bind >= 9.1.3-0.rc2.3 is needed by (installed) caching-nameserver-7.2-7

[root@linux-tys root]# rpm -e caching-nameserver-7.2-7

warning: /etc/named.conf saved as /etc/named.conf.rpmsave

[root@linux-tys root]# rpm -e redhat-config-bind-1.9.0-13 ----刪除圖形配置工具

[root@linux-tys root]# rpm -e bind-9.2.1-16 ----刪除DNS包

warning: /etc/rndc.key saved as /etc/rndc.key.rpmsave ----提示有一個文件保存于……

[root@linux-tys root]# rm -f /etc/rndc.key.rpmsave

[root@linux-tys root]# rm -f /etc/named.conf.rpmsave

[root@linux-tys root]# rpm -e bind-utils-9.2.1-16

[root@linux-tys root]# rpm -qa | grep bind

ypbind-1.11-4 -----此包與DNS無關

注意：卸載時最后卸工具包，安裝時要先安裝工具包

2、安裝9.2.2的包

[root@linux-tys sharedoc]# rpm -ivh bind-utils-9.2.2-13Thiz.i586.rpm ----應先安裝工具包

warning: bind-utils-9.2.2-13Thiz.i586.rpm: V3 DSA signature: NOKEY, key ID f2b3fb5e

PReparing... ############## [100%]

1:bind-utils ############## [100%]

[root@linux-tys sharedoc]# rpm -ivh bind-9.2.2-13Thiz.i586.rpm

warning: bind-9.2.2-13Thiz.i586.rpm: V3 DSA signature: NOKEY, key ID f2b3fb5e

Preparing... ############## [100%]

1:bind ############## [100%]

附:linux dns 客戶端配置

[root@linux-clt named]# more /etc/resolv.conf

nameserver 172.16.1.1 -----第一個DNS服務器

nameserver 61.139.2.69

nameserver 192.168.80.10

search sky.com

domain sky.com