[root@riyimei ~]# yum provides namedLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfile* base: mirrors.aliyun.com* extras: mirrors.aliyun.com* updates: mirrors.aliyun.com32:bind-9.11.4-16.P2.el7.x86_64 : The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serverRepo : baseMatched from:Filename : /usr/sbin/named32:bind-9.11.4-16.P2.el7_8.2.x86_64 : The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serverRepo : updatesMatched from:Filename : /usr/sbin/named32:bind-9.11.4-16.P2.el7_8.3.x86_64 : The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serverRepo : updatesMatched from:Filename : /usr/sbin/named32:bind-9.11.4-16.P2.el7_8.6.x86_64 : The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serverRepo : updatesMatched from:Filename : /usr/sbin/named[root@riyimei ~]#
部署dns 缓存服务器
[root@riyimei ~]# yum install bind -yLoaded plugins: fastestmirrorLoading mirror speeds from cached hostfile* base: mirrors.aliyun.com* extras: mirrors.aliyun.com* updates: mirrors.aliyun.comResolving Dependencies--> Running transaction check---> Package bind.x86_64 32:9.11.4-16.P2.el7_8.6 will be installed--> Processing Dependency: bind-libs-lite(x86-64) = 32:9.11.4-16.P2.el7_8.6 for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: bind-libs(x86-64) = 32:9.11.4-16.P2.el7_8.6 for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: python-ply for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: policycoreutils-python for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: policycoreutils-python for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: liblwres.so.160()(64bit) for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: libisccfg.so.160()(64bit) for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: libisccc.so.160()(64bit) for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: libisc.so.169()(64bit) for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: libdns.so.1102()(64bit) for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: libbind9.so.160()(64bit) for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Processing Dependency: libGeoIP.so.1()(64bit) for package: 32:bind-9.11.4-16.P2.el7_8.6.x86_64--> Running transaction check---> Package GeoIP.x86_64 0:1.5.0-14.el7 will be installed--> Processing Dependency: geoipupdate for package: GeoIP-1.5.0-14.el7.x86_64---> Package bind-libs.x86_64 32:9.11.4-16.P2.el7_8.6 will be installed--> Processing Dependency: bind-license = 32:9.11.4-16.P2.el7_8.6 for package: 32:bind-libs-9.11.4-16.P2.el7_8.6.x86_64---> Package bind-libs-lite.x86_64 32:9.11.4-16.P2.el7_8.6 will be installed---> Package policycoreutils-python.x86_64 0:2.5-34.el7 will be installed--> Processing Dependency: policycoreutils = 2.5-34.el7 for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: setools-libs >= 3.3.8-4 for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: libsemanage-python >= 2.5-14 for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: audit-libs-python >= 2.1.3-4 for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: python-IPy for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: libqpol.so.1(VERS_1.4)(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: libqpol.so.1(VERS_1.2)(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: libcgroup for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: libapol.so.4(VERS_4.0)(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: checkpolicy for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: libqpol.so.1()(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64--> Processing Dependency: libapol.so.4()(64bit) for package: policycoreutils-python-2.5-34.el7.x86_64---> Package python-ply.noarch 0:3.4-11.el7 will be installed--> Running transaction check---> Package audit-libs-python.x86_64 0:2.8.5-4.el7 will be installed---> Package bind-license.noarch 32:9.11.4-16.P2.el7_8.6 will be installed---> Package checkpolicy.x86_64 0:2.5-8.el7 will be installed---> Package geoipupdate.x86_64 0:2.5.0-1.el7 will be installed---> Package libcgroup.x86_64 0:0.41-21.el7 will be installed---> Package libsemanage-python.x86_64 0:2.5-14.el7 will be installed---> Package policycoreutils.x86_64 0:2.5-33.el7 will be updated---> Package policycoreutils.x86_64 0:2.5-34.el7 will be an update---> Package python-IPy.noarch 0:0.75-6.el7 will be installed---> Package setools-libs.x86_64 0:3.3.8-4.el7 will be installed--> Finished Dependency ResolutionDependencies Resolved=======================================================================================================================================Package Arch Version Repository Size=======================================================================================================================================Installing:bind x86_64 32:9.11.4-16.P2.el7_8.6 updates 2.3 MInstalling for dependencies:GeoIP x86_64 1.5.0-14.el7 base 1.5 Maudit-libs-python x86_64 2.8.5-4.el7 base 76 kbind-libs x86_64 32:9.11.4-16.P2.el7_8.6 updates 156 kbind-libs-lite x86_64 32:9.11.4-16.P2.el7_8.6 updates 1.1 Mbind-license noarch 32:9.11.4-16.P2.el7_8.6 updates 90 kcheckpolicy x86_64 2.5-8.el7 base 295 kgeoipupdate x86_64 2.5.0-1.el7 base 35 klibcgroup x86_64 0.41-21.el7 base 66 klibsemanage-python x86_64 2.5-14.el7 base 113 kpolicycoreutils-python x86_64 2.5-34.el7 base 457 kpython-IPy noarch 0.75-6.el7 base 32 kpython-ply noarch 3.4-11.el7 base 123 ksetools-libs x86_64 3.3.8-4.el7 base 620 kUpdating for dependencies:policycoreutils x86_64 2.5-34.el7 base 917 kTransaction Summary=======================================================================================================================================Install 1 Package (+13 Dependent packages)Upgrade ( 1 Dependent package)Total download size: 7.8 MDownloading packages:Delta RPMs disabled because /usr/bin/applydeltarpm not installed.(1/15): bind-libs-9.11.4-16.P2.el7_8.6.x86_64.rpm | 156 kB 00:00:00(2/15): audit-libs-python-2.8.5-4.el7.x86_64.rpm | 76 kB 00:00:00(3/15): bind-license-9.11.4-16.P2.el7_8.6.noarch.rpm | 90 kB 00:00:00(4/15): checkpolicy-2.5-8.el7.x86_64.rpm | 295 kB 00:00:00(5/15): libcgroup-0.41-21.el7.x86_64.rpm | 66 kB 00:00:00(6/15): libsemanage-python-2.5-14.el7.x86_64.rpm | 113 kB 00:00:00(7/15): GeoIP-1.5.0-14.el7.x86_64.rpm | 1.5 MB 00:00:00(8/15): policycoreutils-2.5-34.el7.x86_64.rpm | 917 kB 00:00:00(9/15): python-IPy-0.75-6.el7.noarch.rpm | 32 kB 00:00:00(10/15): python-ply-3.4-11.el7.noarch.rpm | 123 kB 00:00:00(11/15): policycoreutils-python-2.5-34.el7.x86_64.rpm | 457 kB 00:00:00(12/15): setools-libs-3.3.8-4.el7.x86_64.rpm | 620 kB 00:00:00(13/15): bind-9.11.4-16.P2.el7_8.6.x86_64.rpm | 2.3 MB 00:00:02bind-libs-lite-9.11.4-16.P2.el FAILEDhttp://mirrors.aliyuncs.com/centos/7/updates/x86_64/Packages/bind-libs-lite-9.11.4-16.P2.el7_8.6.x86_64.rpm: [Errno 14] curl#7 - "Failed connect to mirrors.aliyuncs.com:80; Connection refused"Trying other mirror.geoipupdate-2.5.0-1.el7.x86_64 FAILEDhttp://mirrors.aliyuncs.com/centos/7/os/x86_64/Packages/geoipupdate-2.5.0-1.el7.x86_64.rpm: [Errno 14] curl#7 - "Failed connect to mirrors.aliyuncs.com:80; Connection refused"Trying other mirror.(14/15): geoipupdate-2.5.0-1.el7.x86_64.rpm | 35 kB 00:00:00(15/15): bind-libs-lite-9.11.4-16.P2.el7_8.6.x86_64.rpm | 1.1 MB 00:00:00---------------------------------------------------------------------------------------------------------------------------------------Total 358 kB/s | 7.8 MB 00:00:22Running transaction checkRunning transaction testTransaction test succeededRunning transactionInstalling : 32:bind-license-9.11.4-16.P2.el7_8.6.noarch 1/16Installing : setools-libs-3.3.8-4.el7.x86_64 2/16Installing : libcgroup-0.41-21.el7.x86_64 3/16Installing : checkpolicy-2.5-8.el7.x86_64 4/16Installing : python-IPy-0.75-6.el7.noarch 5/16Installing : libsemanage-python-2.5-14.el7.x86_64 6/16Updating : policycoreutils-2.5-34.el7.x86_64 7/16Installing : audit-libs-python-2.8.5-4.el7.x86_64 8/16Installing : policycoreutils-python-2.5-34.el7.x86_64 9/16Installing : geoipupdate-2.5.0-1.el7.x86_64 10/16Installing : GeoIP-1.5.0-14.el7.x86_64 11/16Installing : 32:bind-libs-lite-9.11.4-16.P2.el7_8.6.x86_64 12/16Installing : 32:bind-libs-9.11.4-16.P2.el7_8.6.x86_64 13/16Installing : python-ply-3.4-11.el7.noarch 14/16Installing : 32:bind-9.11.4-16.P2.el7_8.6.x86_64 15/16Cleanup : policycoreutils-2.5-33.el7.x86_64 16/16Verifying : 32:bind-9.11.4-16.P2.el7_8.6.x86_64 1/16Verifying : GeoIP-1.5.0-14.el7.x86_64 2/16Verifying : python-ply-3.4-11.el7.noarch 3/16Verifying : geoipupdate-2.5.0-1.el7.x86_64 4/16Verifying : audit-libs-python-2.8.5-4.el7.x86_64 5/16Verifying : policycoreutils-2.5-34.el7.x86_64 6/16Verifying : libsemanage-python-2.5-14.el7.x86_64 7/16Verifying : 32:bind-license-9.11.4-16.P2.el7_8.6.noarch 8/16Verifying : python-IPy-0.75-6.el7.noarch 9/16Verifying : checkpolicy-2.5-8.el7.x86_64 10/16Verifying : 32:bind-libs-lite-9.11.4-16.P2.el7_8.6.x86_64 11/16Verifying : policycoreutils-python-2.5-34.el7.x86_64 12/16Verifying : 32:bind-libs-9.11.4-16.P2.el7_8.6.x86_64 13/16Verifying : libcgroup-0.41-21.el7.x86_64 14/16Verifying : setools-libs-3.3.8-4.el7.x86_64 15/16Verifying : policycoreutils-2.5-33.el7.x86_64 16/16Installed:bind.x86_64 32:9.11.4-16.P2.el7_8.6Dependency Installed:GeoIP.x86_64 0:1.5.0-14.el7 audit-libs-python.x86_64 0:2.8.5-4.el7 bind-libs.x86_64 32:9.11.4-16.P2.el7_8.6bind-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 checkpolicy.x86_64 0:2.5-8.el7geoipupdate.x86_64 0:2.5.0-1.el7 libcgroup.x86_64 0:0.41-21.el7 libsemanage-python.x86_64 0:2.5-14.el7policycoreutils-python.x86_64 0:2.5-34.el7 python-IPy.noarch 0:0.75-6.el7 python-ply.noarch 0:3.4-11.el7setools-libs.x86_64 0:3.3.8-4.el7Dependency Updated:policycoreutils.x86_64 0:2.5-34.el7Complete![root@riyimei ~]#
查看配置文件
[root@riyimei ~]# rpm -qi bindName : bindEpoch : 32Version : 9.11.4Release : 16.P2.el7_8.6Architecture: x86_64Install Date: Sun 25 Oct 2020 10:41:02 AM CSTGroup : UnspecifiedSize : 5652685License : MPLv2.0Signature : RSA/SHA256, Tue 02 Jun 2020 12:22:25 AM CST, Key ID 24c6a8a7f4a80eb5Source RPM : bind-9.11.4-16.P2.el7_8.6.src.rpmBuild Date : Mon 01 Jun 2020 11:30:09 PM CSTBuild Host : x86-02.bsys.centos.orgRelocations : (not relocatable)Packager : CentOS BuildSystem <http://bugs.centos.org>Vendor : CentOSURL : http://www.isc.org/products/BIND/Summary : The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serverDescription :BIND (Berkeley Internet Name Domain) is an implementation of the DNS(Domain Name System) protocols. BIND includes a DNS server (named),which resolves host names to IP addresses; a resolver library(routines for applications to use when interfacing with DNS); andtools for verifying that the DNS server is operating properly.[root@riyimei ~]# rpm -qc bind/etc/logrotate.d/named/etc/named.conf/etc/named.iscdlv.key/etc/named.rfc1912.zones/etc/named.root.key/etc/rndc.conf/etc/rndc.key/etc/sysconfig/named/var/named/named.ca/var/named/named.empty/var/named/named.localhost/var/named/named.loopback[root@riyimei ~]#
[root@riyimei ~]# ll /etc/named*-rw-r----- 1 root named 1806 Jun 1 23:26 /etc/named.conf-rw-r--r-- 1 root named 3923 Jun 1 23:26 /etc/named.iscdlv.key-rw-r----- 1 root named 931 Jun 21 2007 /etc/named.rfc1912.zones-rw-r--r-- 1 root named 1886 Apr 13 2017 /etc/named.root.key/etc/named:total 0[root@riyimei ~]#
默认配置文件
[root@riyimei ~]# cat /etc/named.conf//// named.conf//// Provided by Red Hat bind package to configure the ISC BIND named(8) DNS// server as a caching only nameserver (as a localhost DNS resolver only).//// See /usr/share/doc/bind*/sample/ for example named configuration files.//// See the BIND Administrator's Reference Manual (ARM) for details about the// configuration located in /usr/share/doc/bind-{version}/Bv9ARM.htmloptions {listen-on port 53 { 127.0.0.1; };listen-on-v6 port 53 { ::1; };directory "/var/named";dump-file "/var/named/data/cache_dump.db";statistics-file "/var/named/data/named_stats.txt";memstatistics-file "/var/named/data/named_mem_stats.txt";recursing-file "/var/named/data/named.recursing";secroots-file "/var/named/data/named.secroots";allow-query { localhost; };/*- If you are building an AUTHORITATIVE DNS server, do NOT enable recursion.- If you are building a RECURSIVE (caching) DNS server, you need to enablerecursion.- If your recursive DNS server has a public IP address, you MUST enable accesscontrol to limit queries to your legitimate users. Failing to do so willcause your server to become part of large scale DNS amplificationattacks. Implementing BCP38 within your network would greatlyreduce such attack surface*/recursion yes;dnssec-enable yes;dnssec-validation yes;/* Path to ISC DLV key */bindkeys-file "/etc/named.root.key";managed-keys-directory "/var/named/dynamic";pid-file "/run/named/named.pid";session-keyfile "/run/named/session.key";};logging {channel default_debug {file "data/named.run";severity dynamic;};};zone "." IN {type hint;file "named.ca";};include "/etc/named.rfc1912.zones";include "/etc/named.root.key";[root@riyimei ~]#
[root@riyimei ~]# cat /var/named/named.ca; <<>> DiG 9.11.3-RedHat-9.11.3-3.fc27 <<>> +bufsize=1200 +norec @a.root-servers.net; (2 servers found);; global options: +cmd;; Got answer:;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 46900;; flags: qr aa; QUERY: 1, ANSWER: 13, AUTHORITY: 0, ADDITIONAL: 27;; OPT PSEUDOSECTION:; EDNS: version: 0, flags:; udp: 1472;; QUESTION SECTION:;. IN NS;; ANSWER SECTION:. 518400 IN NS a.root-servers.net.. 518400 IN NS b.root-servers.net.. 518400 IN NS c.root-servers.net.. 518400 IN NS d.root-servers.net.. 518400 IN NS e.root-servers.net.. 518400 IN NS f.root-servers.net.. 518400 IN NS g.root-servers.net.. 518400 IN NS h.root-servers.net.. 518400 IN NS i.root-servers.net.. 518400 IN NS j.root-servers.net.. 518400 IN NS k.root-servers.net.. 518400 IN NS l.root-servers.net.. 518400 IN NS m.root-servers.net.;; ADDITIONAL SECTION:a.root-servers.net. 518400 IN A 198.41.0.4b.root-servers.net. 518400 IN A 199.9.14.201c.root-servers.net. 518400 IN A 192.33.4.12d.root-servers.net. 518400 IN A 199.7.91.13e.root-servers.net. 518400 IN A 192.203.230.10f.root-servers.net. 518400 IN A 192.5.5.241g.root-servers.net. 518400 IN A 192.112.36.4h.root-servers.net. 518400 IN A 198.97.190.53i.root-servers.net. 518400 IN A 192.36.148.17j.root-servers.net. 518400 IN A 192.58.128.30k.root-servers.net. 518400 IN A 193.0.14.129l.root-servers.net. 518400 IN A 199.7.83.42m.root-servers.net. 518400 IN A 202.12.27.33a.root-servers.net. 518400 IN AAAA 2001:503:ba3e::2:30b.root-servers.net. 518400 IN AAAA 2001:500:200::bc.root-servers.net. 518400 IN AAAA 2001:500:2::cd.root-servers.net. 518400 IN AAAA 2001:500:2d::de.root-servers.net. 518400 IN AAAA 2001:500:a8::ef.root-servers.net. 518400 IN AAAA 2001:500:2f::fg.root-servers.net. 518400 IN AAAA 2001:500:12::d0dh.root-servers.net. 518400 IN AAAA 2001:500:1::53i.root-servers.net. 518400 IN AAAA 2001:7fe::53j.root-servers.net. 518400 IN AAAA 2001:503:c27::2:30k.root-servers.net. 518400 IN AAAA 2001:7fd::1l.root-servers.net. 518400 IN AAAA 2001:500:9f::42m.root-servers.net. 518400 IN AAAA 2001:dc3::35;; Query time: 24 msec;; SERVER: 198.41.0.4#53(198.41.0.4);; WHEN: Thu Apr 05 15:57:34 CEST 2018;; MSG SIZE rcvd: 811[root@riyimei ~]#
启动服务
[root@riyimei ~]# systemctl enable named.serviceCreated symlink from /etc/systemd/system/multi-user.target.wants/named.service to /usr/lib/systemd/system/named.service.[root@riyimei ~]# systemctl restart named.service[root@riyimei ~]# systemctl status named.service● named.service - Berkeley Internet Name Domain (DNS)Loaded: loaded (/usr/lib/systemd/system/named.service; enabled; vendor preset: disabled)Active: active (running) since Sun 2020-10-25 10:46:41 CST; 5s agoProcess: 4796 ExecStart=/usr/sbin/named -u named -c ${NAMEDCONF} $OPTIONS (code=exited, status=0/SUCCESS)Process: 4792 ExecStartPre=/bin/bash -c if [ ! "$DISABLE_ZONE_CHECKING" == "yes" ]; then /usr/sbin/named-checkconf -z "$NAMEDCONF"; else echo "Checking of zone files is disabled"; fi (code=exited, status=0/SUCCESS)Main PID: 4797 (named)CGroup: /system.slice/named.service└─4797 /usr/sbin/named -u named -c /etc/named.confOct 25 10:46:41 riyimei named[4797]: network unreachable resolving './NS/IN': 2001:500:1::53#53Oct 25 10:46:41 riyimei named[4797]: network unreachable resolving './DNSKEY/IN': 2001:500:2::c#53Oct 25 10:46:41 riyimei named[4797]: network unreachable resolving './NS/IN': 2001:500:2::c#53Oct 25 10:46:41 riyimei named[4797]: network unreachable resolving './DNSKEY/IN': 2001:7fe::53#53Oct 25 10:46:41 riyimei named[4797]: network unreachable resolving './NS/IN': 2001:7fe::53#53Oct 25 10:46:41 riyimei named[4797]: network unreachable resolving './DNSKEY/IN': 2001:500:a8::e#53Oct 25 10:46:41 riyimei named[4797]: network unreachable resolving './NS/IN': 2001:500:a8::e#53Oct 25 10:46:41 riyimei named[4797]: network unreachable resolving './DNSKEY/IN': 2001:7fd::1#53Oct 25 10:46:41 riyimei named[4797]: network unreachable resolving './NS/IN': 2001:7fd::1#53Oct 25 10:46:43 riyimei named[4797]: managed-keys-zone: Key 20326 for zone . acceptance timer complete: key now trusted[root@riyimei ~]#
[root@riyimei ~]# netstat -anp |grep namedtcp 0 0 127.0.0.1:953 0.0.0.0:* LISTEN 4797/namedtcp 0 0 127.0.0.1:53 0.0.0.0:* LISTEN 4797/namedtcp6 0 0 ::1:953 :::* LISTEN 4797/namedtcp6 0 0 ::1:53 :::* LISTEN 4797/namedudp 0 0 127.0.0.1:53 0.0.0.0:* 4797/namedudp6 0 0 ::1:53 :::* 4797/namedunix 2 [ ] DGRAM 23215 4797/named[root@riyimei ~]#
帮助参考文件
[root@riyimei ~]# ll /usr/share/doc/bind-9.11.4/total 3876-rw-r--r-- 1 root root 26740 Sep 4 2018 Bv9ARM.ch01.html-rw-r--r-- 1 root root 7352 Sep 4 2018 Bv9ARM.ch02.html-rw-r--r-- 1 root root 31114 Sep 4 2018 Bv9ARM.ch03.html-rw-r--r-- 1 root root 132760 Sep 4 2018 Bv9ARM.ch04.html-rw-r--r-- 1 root root 6439 Sep 4 2018 Bv9ARM.ch05.html-rw-r--r-- 1 root root 700572 Sep 4 2018 Bv9ARM.ch06.html-rw-r--r-- 1 root root 20033 Sep 4 2018 Bv9ARM.ch07.html-rw-r--r-- 1 root root 6467 Sep 4 2018 Bv9ARM.ch08.html-rw-r--r-- 1 root root 10515 Sep 4 2018 Bv9ARM.ch09.html-rw-r--r-- 1 root root 7085 Sep 4 2018 Bv9ARM.ch10.html-rw-r--r-- 1 root root 54521 Sep 4 2018 Bv9ARM.ch11.html-rw-r--r-- 1 root root 20938 Sep 4 2018 Bv9ARM.ch12.html-rw-r--r-- 1 root root 10112 Sep 4 2018 Bv9ARM.ch13.html-rw-r--r-- 1 root root 30418 Sep 4 2018 Bv9ARM.html-rw-r--r-- 1 root root 1304481 Sep 4 2018 Bv9ARM.pdf-rw-r--r-- 1 root root 541446 Sep 4 2018 CHANGES-rw-r--r-- 1 root root 287991 Sep 4 2018 isc-logo.pdf-rw-r--r-- 1 root root 3080 Sep 4 2018 man.arpaname.html-rw-r--r-- 1 root root 9721 Sep 4 2018 man.ddns-confgen.html-rw-r--r-- 1 root root 24442 Sep 4 2018 man.delv.html-rw-r--r-- 1 root root 41601 Sep 4 2018 man.dig.html-rw-r--r-- 1 root root 5482 Sep 4 2018 man.dnssec-checkds.html-rw-r--r-- 1 root root 11621 Sep 4 2018 man.dnssec-coverage.html-rw-r--r-- 1 root root 9916 Sep 4 2018 man.dnssec-dsfromkey.html-rw-r--r-- 1 root root 9807 Sep 4 2018 man.dnssec-importkey.html-rw-r--r-- 1 root root 19581 Sep 4 2018 man.dnssec-keyfromlabel.html-rw-r--r-- 1 root root 22850 Sep 4 2018 man.dnssec-keygen.html-rw-r--r-- 1 root root 15514 Sep 4 2018 man.dnssec-keymgr.html-rw-r--r-- 1 root root 5753 Sep 4 2018 man.dnssec-revoke.html-rw-r--r-- 1 root root 14904 Sep 4 2018 man.dnssec-settime.html-rw-r--r-- 1 root root 31427 Sep 4 2018 man.dnssec-signzone.html-rw-r--r-- 1 root root 7609 Sep 4 2018 man.dnssec-verify.html-rw-r--r-- 1 root root 4496 Sep 4 2018 man.dnstap-read.html-rw-r--r-- 1 root root 4234 Sep 4 2018 man.genrandom.html-rw-r--r-- 1 root root 13048 Sep 4 2018 man.host.html-rw-r--r-- 1 root root 4711 Sep 4 2018 man.isc-hmac-fixup.html-rw-r--r-- 1 root root 12746 Sep 4 2018 man.lwresd.html-rw-r--r-- 1 root root 23732 Sep 4 2018 man.mdig.html-rw-r--r-- 1 root root 6931 Sep 4 2018 man.named-checkconf.html-rw-r--r-- 1 root root 20690 Sep 4 2018 man.named-checkzone.html-rw-r--r-- 1 root root 75181 Sep 4 2018 man.named.conf.html-rw-r--r-- 1 root root 19530 Sep 4 2018 man.named.html-rw-r--r-- 1 root root 4296 Sep 4 2018 man.named-journalprint.html-rw-r--r-- 1 root root 3952 Sep 4 2018 man.named-nzd2nzf.html-rw-r--r-- 1 root root 4311 Sep 4 2018 man.named-rrchecker.html-rw-r--r-- 1 root root 4275 Sep 4 2018 man.nsec3hash.html-rw-r--r-- 1 root root 14835 Sep 4 2018 man.nslookup.html-rw-r--r-- 1 root root 28782 Sep 4 2018 man.nsupdate.html-rw-r--r-- 1 root root 5703 Sep 4 2018 man.pkcs11-destroy.html-rw-r--r-- 1 root root 7304 Sep 4 2018 man.pkcs11-keygen.html-rw-r--r-- 1 root root 5594 Sep 4 2018 man.pkcs11-list.html-rw-r--r-- 1 root root 3823 Sep 4 2018 man.pkcs11-tokens.html-rw-r--r-- 1 root root 11752 Sep 4 2018 man.rndc-confgen.html-rw-r--r-- 1 root root 10418 Sep 4 2018 man.rndc.conf.html-rw-r--r-- 1 root root 40851 Sep 4 2018 man.rndc.html-rw-r--r-- 1 root root 1806 Jun 1 23:26 named.conf.default-rw-r--r-- 1 root root 7484 Sep 4 2018 notes.html-rw-r--r-- 1 root root 52181 Sep 4 2018 notes.pdf-rw-r--r-- 1 root root 23003 Sep 4 2018 READMEdrwxr-xr-x 4 root root 28 Oct 25 10:41 sample[root@riyimei ~]#
排错工具
nslookup
host
dig
