动态域名服务dynamic-dnsVIP免费

[root@localhost~]#yum-yinstalldhcp*bind*[root@localhost~]#servicenamedrestart[root@localhost~]#chkconfignamedon[root@localhost~]#servicedhcpdrestart[root@localhost~]#chkconfignamedon[root@localhost~]#vim/etc/named.conf10options{11listen-onport53{any;};12listen-on-v6port53{any;};13directory"/var/named";14dump-file"/var/named/data/cache_dump.db";15statistics-file"/var/named/data/named_stats.txt";16memstatistics-file"/var/named/data/named_mem_stats.txt";17allow-query{any;};18recursionyes;1920dnssec-enableyes;21dnssec-validationyes;22dnssec-lookasideauto;2324/*PathtoISCDLVkey*/25bindkeys-file"/etc/named.iscdlv.key";2627managed-keys-directory"/var/named/dynamic";28};2930logging{31channeldefault_debug{32file"data/named.run";33severitydynamic;34};35};3637controls{38inet172.0.0.1port95339allow{localhost;}keys{"rndc-key";};40};414243zone"xg.cn"IN{44typemaster;45file"xg.cn.zone";46allow-update{key"rndc-key";};47};4849zone"137.168.192.in-addr.arpa"IN{50typemaster;51file"xg.cn.rev";52allow-update{key"rndc-key";};53};5455zone"."IN{56typehint;57file"named.ca";58};5960include"/etc/named.rfc1912.zones";61include"/etc/named.root.key";62include"/etc/rndc.key";[root@localhost~]#dnssec-keygen-ahmac-md5-b512-nHOSTddns-key[root@localhost~]#cd/var/named[root@localhostnamed]#cpnamed.localhostxg.cn.zone[root@localhostnamed]#cpnamed.localhostxg.cn.rev[root@localhostnamed]#vim/var/named/xg.cn.zone$TTL86400@INSOAdnsroot(1;serial1D;refresh1H;retry1W;expire3H);minimumNSdnsdnsA192.168.137.73[root@localhostnamed]#vim/var/named/xg.cn.rev$TTL86400@INSOAdnsroot(1;serial1D;refresh1H;retry1W;expire3H);minimumNSdns73INPTRdnsdnsA192.168.137.73[root@localhostnamed]#chmodg+w/var/named/xg.cn.rev[root@localhostnamed]#chmodg+w/var/named/xg.cn.zone[root@localhostnamed]#chmodg+w/var/named/[root@localhostnamed]#servicenamedrestartStoppingnamed:[OK]Startingnamed:[OK][root@localhostnamed]#cp/usr/share/doc/dhcp-4.1.1/dhcpd.conf.sample/etc/dhcp/dhcpd.conf[root@localhostnamed]#vim/etc/dhcp/dhcpd.conf7optiondomain-name"xg.cn";8optiondomain-name-servers192.168.137.73;910default-lease-time604800;11max-lease-time864000;1213ddns-update-styleinterim;14ddns-domainname"xg.cn";15ignoreclient-updates;16include"/etc/rndc.key";171819zonexg.cn.{20primary192.168.137.73;21key"rndc-key";22}2324zone137.168.192.in-addr.arpa.{25primary192.168.137.73;26key"rndc-key";27}64subnet192.168.137.0netmask255.255.255.0{65rangedynamic-bootp192.168.137.160192.168.137.200;66optionrouters192.168.137.1;67optionbroadcast-address192.168.137.255;68}[root@localhostnamed]#chmodo+r/etc/rndc.key[root@localhostnamed]#servicedhcpdrestart在xuegod74上设置网卡dhcp动态获取ipBOOTPROTO=dhcp重启网卡servicenetworkrestart测试nslookupxuegod74.xg.cnServer:192.168.137.73Address:192.168.137.73#53Name:xuegod74.xg.cnAddress:192.168.137.165在xuegod73上查看ls/var/named/chrootnamed.emptyxg.cn.revxuegod.cn.zonedatanamed.localhostxg.cn.rev.jnlxuegod.cn.zone-localdynamicnamed.loopbackxg.cn.zonexuegod.cn.zone-networknamed.caslavesxg.cn.zone.jnl#xg.cn.zone.jnl为临时文件15分钟后同步给xg.cn.zone文件其他客户端重启网络服务，查看dhcpd.leasesDHCP分配信息，发现已经有了set相关字段tail-n15/var/lib/dhcpd/dhcpd.leasesserver-duid"\000\001\000\001\035\031T\007\000\014)j\301\323";lease192.168.137.165{starts12015/06/2215:17:55;ends12015/06/2915:17:55;cltt12015/06/2215:17:55;bindingstateactive;nextbindingstatefree;hardwareethernet00:0c:29:37:6d:a3;setddns-rev-name="165.137.168.192.in-addr.arpa.";setddns-txt="001e15c0dc8759236c36687c3185aef359";setddns-fwd-name="xuegod74.xg.cn";client-hostname"xuegod74";}15分钟后查看xg.cn.zone和xg.cn.rev两个文件cat/var/named/xg.cn.zone$ORIGIN.$TTL86400;1dayxg.cnINSOAdns.xg.cn.root.xg.cn.(2;serial86400;refresh(1day)3600;retry(1hour)604800;expire(1week)10800;minimum(3hours))NSdns.xg.cn.$ORIGINxg.cn.dnsA192.168.137.73$TTL302400;3days12hoursxuegod74A192.168.137.165TXT"001e15c0dc8759236c36687c3185aef359"cat/var/named/xg.cn.rev$ORIGIN.$TTL86400;1day137.168.192.in-addr.arpaINSOAdns.137.168.192.in-addr.arpa.root.137.168.192.in-addr.arpa.(2;serial86400;refresh(1day)3600;retry(1hour)604800;expire(1week)10800;minimum(3hours))NSdns.137.168.192.in-addr.arpa.$ORIGIN137.168.192.in-addr.arpa.$TTL302400;3days12hours165PTRxuegod74.xg.cn.$TTL86400;1day73PTRdnsdnsA192.168.137.73