yum安装bind-utils（dig）报错解决方法

一、dig命令不存在（-bash: dig: command not found）

[root@linux ~]# dig www.baidu.com
-bash: dig: command not found

解决方法： 安装bind-utils即可：yum -y install bind-utils

[root@linux ~]# yum -y install bind-utils
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package bind-utils.x86_64 32:9.9.4-29.el7_2.4 will be installed
--> Processing Dependency: bind-libs = 32:9.9.4-29.el7_2.4 for package: 32:bind-utils-9.9.4-29.el7_2.4.x86_64
--> Processing Dependency: liblwres.so.90()(64bit) for package: 32:bind-utils-9.9.4-29.el7_2.4.x86_64
--> Processing Dependency: libisccfg.so.90()(64bit) for package: 32:bind-utils-9.9.4-29.el7_2.4.x86_64
--> Processing Dependency: libisccc.so.90()(64bit) for package: 32:bind-utils-9.9.4-29.el7_2.4.x86_64
--> Processing Dependency: libisc.so.95()(64bit) for package: 32:bind-utils-9.9.4-29.el7_2.4.x86_64
--> Processing Dependency: libdns.so.100()(64bit) for package: 32:bind-utils-9.9.4-29.el7_2.4.x86_64
--> Processing Dependency: libbind9.so.90()(64bit) for package: 32:bind-utils-9.9.4-29.el7_2.4.x86_64
--> Running transaction check
---> Package bind-libs.x86_64 32:9.9.4-29.el7_2.4 will be installed
--> Processing Dependency: bind-license = 32:9.9.4-29.el7_2.4 for package: 32:bind-libs-9.9.4-29.el7_2.4.x86_64
--> Finished Dependency Resolution
Error: Package: 32:bind-libs-9.9.4-29.el7_2.4.x86_64 (updates)
           Requires: bind-license = 32:9.9.4-29.el7_2.4
           Installed: 32:bind-license-9.9.4-72.el7.noarch (@anaconda)
               bind-license = 32:9.9.4-72.el7
           Available: 32:bind-license-9.9.4-29.el7.noarch (CentOS)
               bind-license = 32:9.9.4-29.el7
           Available: 32:bind-license-9.9.4-29.el7_2.1.noarch (updates)
               bind-license = 32:9.9.4-29.el7_2.1
           Available: 32:bind-license-9.9.4-29.el7_2.2.noarch (updates)
               bind-license = 32:9.9.4-29.el7_2.2
           Available: 32:bind-license-9.9.4-29.el7_2.3.noarch (updates)
               bind-license = 32:9.9.4-29.el7_2.3
           Available: 32:bind-license-9.9.4-29.el7_2.4.noarch (updates)
               bind-license = 32:9.9.4-29.el7_2.4
 You could try using --skip-broken to work around the problem
 You could try running: rpm -Va --nofiles --nodigest

二、CentOS 7.x系列安装bind-utils报错

报错信息如上所示：
Resolving Dependencies
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
问题分析： 系统安装自带的bind类rpm包冲突引起的
解决方法： 查找系统已安装的rpm包，卸载后再重装

[root@linux ~]# rpm -qa|grep bind
bind-libs-lite-9.9.4-72.el7.x86_64
bind-license-9.9.4-72.el7.noarch
[root@linux ~]# yum remove bind-libs-lite-9.9.4-72.el7.x86_64
[root@linux ~]# yum remove bind-license-9.9.4-72.el7.noarch
[root@linux ~]# yum -y install bind-utils
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
base                                     | 3.6 kB     00:00     
epel                                     | 4.7 kB     00:00     
extras                                   | 2.9 kB     00:00   
........
Installed:
  bind-utils.x86_64 32:9.11.4-16.P2.el7_8.6                     
Dependency Installed:
  bind-libs.x86_64 32:9.11.4-16.P2.el7_8.6                      
  bind-libs-lite.x86_64 32:9.11.4-16.P2.el7_8.6                 
  bind-license.noarch 32:9.11.4-16.P2.el7_8.6                   
Complete!

验证dig是否安装成功：

[root@linux ~]# dig www.baidu.com

; <<>> DiG 9.11.4-P2-RedHat-9.11.4-16.P2.el7_8.6 <<>> www.baidu.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59160
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;www.baidu.com.			IN	A

;; ANSWER SECTION:
www.baidu.com.		1060	IN	CNAME	www.a.shifen.com.
www.a.shifen.com.	160	IN	A	220.181.38.150
www.a.shifen.com.	160	IN	A	220.181.38.149

;; Query time: 0 msec
;; SERVER: 103.224.222.222#53(103.224.222.222)
;; WHEN: Fri Aug 28 15:19:29 CST 2020
;; MSG SIZE  rcvd: 90