yum安装bind常用工具

安装bind工具，如dig，nslookup等。
# rpm -qa | grep bind
bind-libs-9.8.2-0.17.rc1.el6_4.6.x86_64
bind-utils-9.8.2-0.17.rc1.el6_4.6.x86_64
# rpm -ql bind-utils
/usr/bin/dig
/usr/bin/host
/usr/bin/nslookup
/usr/bin/nsupdate
/usr/share/man/man1/dig.1.gz
/usr/share/man/man1/host.1.gz
/usr/share/man/man1/nslookup.1.gz
/usr/share/man/man1/nsupdate.1.gz
# rpm -ql bind-libs
/usr/lib64/libbind9.so.80
/usr/lib64/libbind9.so.80.0.4
/usr/lib64/libdns.so.81
/usr/lib64/libdns.so.81.4.1
/usr/lib64/libisc.so.83
/usr/lib64/libisc.so.83.0.3
/usr/lib64/libisccc.so.80
/usr/lib64/libisccc.so.80.0.0
/usr/lib64/libisccfg.so.82
/usr/lib64/libisccfg.so.82.0.1
/usr/lib64/liblwres.so.80
/usr/lib64/liblwres.so.80.0.2
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