Solaris上的域名系統(tǒng)配置

1、Solaris上的域名系統(tǒng)配置   2003-7-21   1. 有關(guān)域名的說明TCP/IP域名影響TCP/IP主機(jī)的地址翻譯，即主機(jī)名到地址的轉(zhuǎn)換。此外，域名也影響郵件交換，即郵件地址到郵件服務(wù)器的映射。Internet上的域名通常帶有后綴，但實(shí)際配置中可以不給出后綴。域名系統(tǒng)包括域名服務(wù)器(DNS)和域名客戶機(jī)。一個(gè)TCP/IP客戶(如MS Windows)通常通過以下幾種方式查找某個(gè)主機(jī)的地址：· 使用HOSTS文件，在該文件中給出名字/地址表；· 使用WINS協(xié)議，給出WINS服務(wù)器地址；· 使用DNS，這時(shí)需要給出域名服務(wù)器

2、(DNS)地址。 2. 相關(guān)文件和DNS配置相關(guān)的文件包括：· /etc/defaultdomain· /etc/nsswitch.conf· /etc/resolv.conf· /etc/named.boot· 以及和具體域名配置的"主機(jī)"、"本地網(wǎng)絡(luò)"、"反向"、"Cache"等四個(gè)文件。這里的四個(gè)文件的路徑以及文件名均在文件"/etc/named.boot"中給出。以下的示例中，路徑使用"/var/named"，四個(gè)文件

3、分別為named.hosts，named.local，named.rev和named.ca。以上文件權(quán)限只需root可讀即可。3. DNS具體配置說明(1) /etc/defaultdomain"/etc/defaultdomain"文件給出確省域名，該文件內(nèi)容為域名名稱，例如：so.unis表示缺省域名為"so.unis"，以后僅使用某個(gè)主機(jī)名時(shí)，系統(tǒng)假設(shè)為缺省域中的主機(jī)。例如，"ping www"將被理解為"ping http:/www.so.unis"。(2) /etc/nsswitch.conf如果使用DN

4、S，則必須在該文件的"HOST"一項(xiàng)中給出"DNS"。缺省為使用文件，即"FILES"，該選項(xiàng)可以保留。例如：# /etc/nsswitch.files:hosts: dns files(3) /etc/resolv.conf該文件給出域名和域名服務(wù)器地址。例如：; /etc/resolv.conf file domain so.unis ;域名nameserver ;域名服務(wù)器地址;域名服務(wù)器地址可以給出多個(gè)(4) /etc/named.boot該文件指明DNS所需具體文件的路徑和文件名。例如：; name

5、d.boot filedirectory /var/named;文件所在路徑，通常使用/var/namedcache . named.ca ;dns cache file,其中點(diǎn)表示當(dāng)前域primary so.unis named.hosts ;dns host filesecondary unis ;另一個(gè)域"unis"的DNS地址primary 0.0.127. named.local;local dns file，為本地子網(wǎng)primary 99.168.192. named.re

6、v;named rev file，本子網(wǎng)為 (5) /var/named/named.hosts說明如下：; named.hosts - dns file; SOA recso.unis. IN SOA dns.so.unis. root.dns.so.unis. (;SOA記錄，;dns.so.unis為DNS對應(yīng)的主機(jī);root.dns.so.unis為主機(jī)的管理員用戶為root;以上的域、主機(jī)及用戶后均需要跟上點(diǎn)1998120816 ;dns序列號(hào)，可以使用年月日時(shí)10800 ;refresh after 3 hours10800 ;retry after 3 h

7、our604800 ;expire after 1 week86400) ;minimum TTL of 1 dayso.unis. IN NS dns.so.unis.;name server;以下為主機(jī)/地址對應(yīng)表dns.so.unis. IN A localhost IN A dbserver.so.unis. IN A http:/www.so.unis. IN A mail.so.unis. IN A ftp.so.unis IN A ;mail

8、exchangeso.unis IN MX 1 mail.so.unis.(6) /var/named/named.local; named.local - dns file; SOA . IN SOA dns.so.unis. root.dns.so.unis. (1998120816 ;serial number10800 ;refresh after 3 hours10800 ;retry after 3 hour604800 ;expire after 1 week86400) ;minimum TTL of 1 day;name serv

9、. IN NS . IN PTR localhost(7) /var/named/named.rev; named.rev - dns file; SOA . IN SOA dns.so.unis. root.dns.so.unis. (19981208 ;serial number10800 ;refresh after 3 hours10800 ;retry after 3 hour604800 ;expire after 1

10、week86400) ;minimum TTL of 1 day;name . IN NS . IN PTR dns.so.unis.(8) /var/named/named.ca; named.ca - dns cache file; IN SOA dns.so.unis. root.dns.so.unis. (1998120815 ;serial number10800 ;refresh after 3 hours3600 ;retry after 3 hou

11、r604800 ;expire after 1 week86400) ;minimum TTL of 1 day;dns.so.unis. 999999 IN A 99.168.192.. IN NS so.unis.dns.so.unis. IN A 4. 配置文件示例溫州甌海法院DNS配置：域名為：oh.wz.zj，主子網(wǎng)為，DNS地址為，主機(jī)名為"ohfy"。文件內(nèi)容如下：(1) /etc/defaultdomainoh.wz.zj(2) /etc/nsswit

12、ch.conf# /etc/nsswitch.files:# "hosts:" and "services:" in this file are used only if the# /etc/netconfig file has a "-" for nametoaddr_libs of "inet" transports.passwd: filesgroup: fileshosts: dns filesnetworks: filesprotocols: filesrpc: filesethers: filesnet

13、masks: files bootparams: filespublickey: files# At present there isn't a 'files' backend for netgroup; the system will # figure it out pretty quickly, and won't use netgroups at group: filesautomount: filesaliases: filesservices: filessendmailvars: files(3) /etc/resolv.conf; /

14、etc/resolv.conf file for dnsmaster (E450); written in 1998-12-8, UNIS;domain oh.wz.zj ;This domain namenameserver ;this domain name server;nameserver 202.x.x.x ;parent dns server(4) /etc/named.boot; /etc/named.boot file for dnsmaster (E450); written in 1998-12-8, UNIS;directory /var/namedc

15、ache . named.ca ;dns cache fileprimary oh.wz.zj named.hosts ;dns host file;secondary wz.zj 202.x.x.xprimary 0.0.127. named.local ;local dns fileprimary 6.3.203. named.rev ;named rev file(5) /var/named/named.ca; named.ca - dns cache file; written in 1998-12-8, tusc; IN SOA ohf

16、y.oh.wz.zj. root.ohfy.oh.wz.zj. (1998120815 ;serial number10800 ;refresh after 3 hours3600 ; retry after 3 hour604800 ; expire after 1 week86400) ; minimum TTL of 1 day;ohfy.oh.wz.zj. 999999 IN A ;wz. IN NS . IN NS oh.wz.zj.ohfy.oh.wz.zj. IN A (6) /var/nam

17、ed/named.hosts; db.oh - dns file; written in 1998-12-8, tusc; SOA recoh.wz.zj. IN SOA ohfy.oh.wz.zj. root.ohfy.oh.wz.zj. (1998120816 ;serial number10800 ;refresh after 3 hours10800 ; retry after 3 hour604800 ; expire after 1 week86400) ; minimum TTL of 1 day;name serveroh.wz.zj. IN NS ohfy.oh.wz.zj.

18、;addressohfy.oh.wz.zj. IN A localhost IN A dbserver.oh.wz.zj. IN A http:/www.oh.wz.zj. IN A mail.oh.wz.zj. IN A ftp IN A ;wz.zj. IN A 202.x.x.x ;parent dns server;mail exchangeoh.wz.zj IN MX 1 mail.oh.wz.zj.(7) /var/named/named.local; named.local - dns file; written in 1998-12-8, tusc; SOA . IN SOA ohfy.oh.wz.zj. root.ohfy.oh