安装DNS服务器

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安装DNS服务器
　　1、从www.isc.org下载bind 域名服务器软件。我们这里用的是bind8.3.0，bind8分支和bind9分支是并行发展的。根据自己的实际情况选择合适的bind版本。
　　2、mkdir /usr/src/bind83
　　3、下载的文件叫bind-src.tar.gz，复制到/usr/local/src/bind83目录下。
　　4、cd /usr/local/src/bind83
　　5、tar zxvf bind-src.tar.gz
　　6、cd src
　　7、make stdlinks
　　8、make clean
　　9、make depend
　　10、make all
　　11、make install
　　12、编辑配置文件：/etc/named.conf内容如下，需要更改的部分用黑体标出：
　　/*
　　 * This is a worthless, nonrunnable example of a named.conf file that has
　　 * every conceivable syntax element in use. We use it to test the parser.
　　 * It could also be used as a conceptual template for users of new features.
　　 */
　　/*
　　 * C-style comments are OK
　　 */
　　// So are C++-style comments
　　# So are shell-style comments
　　// watch out for ";" -- it's important!
　　options {
directory "/var/named";
　　　　　　// use current directory
named-xfer "/usr/libexec/named-xfer";
　　　　　　// _PATH_XFER
dump-file "named_dump.db";
　　　　　　// _PATH_DUMPFILE
pid-file "/var/run/named.pid";
　　　　　 // _PATH_PIDFILE
statistics-file "named.stats";
　　　　　　// _PATH_STATS
memstatistics-file "named.memstats";
　　　　　　// _PATH_MEMSTATS
check-names master fail;
check-names slave warn;
check-names response ignore;
host-statistics no;
deallocate-on-exit no;
　　　　　　// Painstakingly deallocate all
　　　　　　// objects when exiting instead of
　　　　　　// letting the OS clean up for us.
　　　　　　// Useful a memory leak is suspected.
// Final statistics are written to the
// memstatistics-file.
datasize default;
stacksize default;
coresize default;
files unlimited;
recursion yes;
fetch-glue yes;
fake-iquery no;
notify yes;
　　　 　// send NOTIFY messages. You can set
// notify on a zone-by-zone
// basis in the "zone" statement
// see (below)
serial-queries 4;
　 　　　// number of parallel SOA queries
// we can have outstanding for master
// zone change testing purposes
auth-nxdomain yes;
// always set AA on NXDOMAIN.
// don't set this to 'no' unless
// you know what you're doing -- older
// servers won't like it.
multiple-cnames no;
　　 // if yes, then a name my have more
// than one CNAME RR. This use
// is non-standard and is not
// recommended, but it is available
// because previous releases supported
// it and it was used by large sites
// for load balancing.
allow-query { any; };
allow-transfer { any; };
transfers-in 10;
　　　　 // DEFAULT_XFERS_RUNNING, cannot be
　　 // set > than MAX_XFERS_RUNNING (20)
transfers-per-ns 2;
// DEFAULT_XFERS_PER_NS
transfers-out 0;
// not implemented
max-transfer-time-in 120;
// MAX_XFER_TIME; the default number
// of minutes an inbound zone transfer
// may run. May be set on a per-zone
// basis.
transfer-format one-answer;
query-source address * port *;
　　/*
* The "forward" option is only meaningful if you've defined
* forwarders. "first" gives the normal BIND
* forwarding behavior, i.e. ask the forwarders first, and if that
* doesn't work then do the full lookup. You can also say
* "forward only;" which is what used to be specified with
* "slave" or "options forward-only". "only" will never attempt
　　 * a full lookup; only the forwarders will be used.
　　 */
forward first;
forwarders { };
　　　　// default is no forwarders
topology { localhost; localnets; };
　　　　// prefer local nameservers
listen-on port 53 { any; };
　　　　// listen for queries on port 53 on
　　 // any interface on the system
　　 // (i.e. all interfaces). The
　　 // "port 53" is optional; if you
　　 // don't specify a port, port 53
　　 // is assumed.
/*
* Interval Timers
*/
cleaning-interval 60;
　　　 // clean the cache of expired RRs
　　 // every 'cleaning-interval' minutes
interface-interval 60;
　　　　// scan for new or deleted interfaces
　　 // every 'interface-interval' minutes
statistics-interval 60;
　　　　// log statistics every
　　 // 'statistics-interval' minutes
maintain-ixfr-base no;
　　　　// If yes, keep transaction log file for IXFR
max-ixfr-log-size 20;
　　　　// Not implemented, maximum size the
　　 // IXFR transaction log file to grow
　　};
　　/*
　　 * Control listeners, for "ndc". Every nameserver needs at least one.
　　 */
　　controls {
inet * port 52 allow { any; };
// a bad idea
unix "/var/run/ndc" perm 0600 owner 0 group 0;
　　　　　　 // the default
　　};
　　zone "rd.21vianet.com" in {
type master;
　　　　　　// what used to be called "primary"
file "rd.21vianet.com.db";
check-names fail;
allow-update { none; };
allow-transfer { any; };
allow-query { any; };
// notify yes;
　　　　　　// send NOTIFY messages for this
// zone? The global option is used
// if "notify" is not specified
// here.
also-notify { };
　　　　　　// don't notify any nameservers other
// than those on the NS list for this
// zone
　　};
　　zone "223.99.211.in-addr.arpa" in {
type master;
// what used to be called "secondary"
file "211.99.223.db";
};
　　zone "0.0.127.in-addr.arpa" in {
type master;
file "127.0.0.db";
　　};
　　zone "." in {
type hint;
　　　　　　 // used to be specified w/ "cache"
file "named.root";
　　};
　　logging {
/*
* All log output goes to one or more "channels"; you can make as
* many of them as you want.
*/
channel syslog_errors {
　　　　　　// this channel will send errors or
syslog user;
　　　　　　// or worse to syslog (user facility)
severity error;
};
category parser {
syslog_errors;
// you can log to as many channels
default_syslog;
　　　　 // as you want
};
category lame-servers { null; };
　　　　 // don't log these at all
channel moderate_debug {
severity debug 3;
　　　　 // level 3 debugging to file
file "foo";
　　　　 // foo
print-time yes;
　　　　// timestamp log entries
print-category yes;
　　　　 // print category name
print-severity yes;
　　　　 // print severity level
/*
* Note that debugging must have been turned on either
* on the command line or with a signal to get debugging
* output (non-debugging output will still be written to
* this channel).
*/
};
/*
* If you don't want to see "zone XXXX loaded" messages but do
* want to see any problems, you could do the following.
*/
channel no_info_messages {
syslog;
severity notice;
};
category load { no_info_messages; };
/*
* You can also define category "default"; it gets used when no
* "category" statement has been given for a category.
*/
category default {
default_syslog;
moderate_debug;
};
};
　　13、在/var/named/中生成/etc/named.conf中标记的文件：rd.21vianet.com.db，内容如下，需要修改和调整相应部分：
　　;Authoriative data for rd.21vianet.com
　　;
　　$TTL 3600
　　@ IN SOA compaq.rd.21vianet.com. tandongyu.rd.21vianet.com. (
　　　　20020101 ;Serial
　　　　3600 ;Refresh 1 hour
　　　　900 ;Retry 15 mins
　　　　604800 ;Expire 7 days
　　　　86400) ;Mini 24 hours
　　;Name server NS records
　　@ IN NS compaq.rd.21vianet.com.
　　;Mail Exchange (MX) records
　　rd.21vianet.com. IN MX 0 compaq
　　;Address (A) records.
　　localhost IN A 127.0.0.1
　　compaq IN A 211.99.223.9
　　tls65 IN A 211.99.223.8
　　fbsd IN A 211.99.223.7
　　14、在/var/named/中生成/etc/named.conf中标记的文件：211.99.223.db，内容如下，你需要修改相应部分：
　　;
　　;
　　$TTL 3600
　　@ IN SOA compaq.rd.21vianet.com. tandongyu.rd.21vianet.com. (
　　　　20020101 ;Serial
　　　　3600 ;Refresh
　　　　900 ;Retry 15 mins
　　　　604800 ;Expire 7 days
　　　　86400) ;Mini 24 hours
　　;NameServer (NS) records
　　@ IN NS compaq.rd.21vianet.com.
　　;Address Point to Name (PTR) records
　　9 IN PTR compaq.rd.21vianet.com.
　　8 IN PTR tls65.rd.21vianet.com.
　　7 IN PTR fbsd.rd.21vianet.com.
　　15、在/var/named/中生成/etc/named.conf中标记的文件：127.0.0.db，内容如下，你需要修改相应部分：
　　; 0.0.127.in-addr.arpa
　　$TTL 3600
　　@ IN SOA compaq.rd.21vianet.com. tandongyu.rd.21vianet.com. (
　　　　 20020101;serial
3600 ;refresh
1800 ;retry
604800 ;expiration
3600 ) ;minimum
IN NS compaq.rd.21vianet.com.
　　1 IN PTR localhost.
　　16、在/var/named/中生成/etc/named.conf中标记的文件：named.root，内容大致如下。该文件标记了14个域名服
务器。可以从ftp.rs.internic.net获得该文件的最新样本：named.hosts，然后改名成你需要的名字，比如：
named.root
　　; This file holds the information on root name servers needed to
　　; initialize cache of Internet domain name servers
　　; (e.g. reference this file in the "cache . "
　　; configuration file of BIND domain name servers).
　　;
　　; This file is made available by InterNIC registration services
　　; under anonymous FTP as
　　; file /domain/named.root
　　; on server
FTP.RS.INTERNIC.NET
　　; -OR- under Gopher at RS.INTERNIC.NET
　　; under menu InterNIC Registration Services (NSI)
　　; submenu InterNIC Registration Archives
　　; file named.root
　　;
　　; last update: Aug 22, 1997
　　; related version of root zone: 1997082200
　　;
　　;
　　; formerly NS.INTERNIC.NET
　　;
　　　　. 3600000 IN NS A.ROOT-SERVERS.NET.
　　　　A.ROOT-SERVERS.NET. 3600000 A 198.41.0.4
　　;
　　; formerly NS1.ISI.EDU
　　;
　　　　. 3600000 NS B.ROOT-SERVERS.NET.
　　　　B.ROOT-SERVERS.NET. 3600000 A 128.9.0.107
　　;
　　; formerly C.PSI.NET
　　;
　　　　. 3600000 NS C.ROOT-SERVERS.NET.
　　　　C.ROOT-SERVERS.NET. 3600000 A 192.33.4.12
　　;
　　; formerly TERP.UMD.EDU
　　;
　　　　. 3600000 NS D.ROOT-SERVERS.NET.
　　　　D.ROOT-SERVERS.NET. 3600000 A 128.8.10.90
　　;
　　; formerly NS.NASA.GOV
　　;
　　　　. 3600000 NS E.ROOT-SERVERS.NET.
　　　　E.ROOT-SERVERS.NET. 3600000 A 192.203.230.10
　　;
　　; formerly NS.ISC.ORG
　　;
　　　　. 3600000 NS F.ROOT-SERVERS.NET.
　　　　F.ROOT-SERVERS.NET. 3600000 A 192.5.5.241
　　;
　　; formerly NS.NIC.DDN.MIL
　　;
　　　　. 3600000 NS G.ROOT-SERVERS.NET.
　　　　G.ROOT-SERVERS.NET. 3600000 A 192.112.36.4
　　;
　　; formerly AOS.ARL.ARMY.MIL
　　;
　　　　. 3600000 NS H.ROOT-SERVERS.NET.
　　　　H.ROOT-SERVERS.NET. 3600000 A 128.63.2.53
　　;
　　; formerly NIC.NORDU.NET
　　;
　　　　. 3600000 NS I.ROOT-SERVERS.NET.
　　　　I.ROOT-SERVERS.NET. 3600000 A 192.36.148.17
　　;
　　; temporarily housed at NSI (InterNIC)
　　;
　　　　. 3600000 NS J.ROOT-SERVERS.NET.
　　　　J.ROOT-SERVERS.NET. 3600000 A 198.41.0.10
　　;
　　; housed in LINX, operated by RIPE NCC
　　;
　　　　. 3600000 NS K.ROOT-SERVERS.NET.
　　　　K.ROOT-SERVERS.NET. 3600000 A 193.0.14.129
　　;
　　; temporarily housed at ISI (IANA)
　　;
　　　　. 3600000 NS L.ROOT-SERVERS.NET.
　　　　L.ROOT-SERVERS.NET. 3600000 A 198.32.64.12
　　;
　　; housed in Japan, operated by WIDE
　　;
　　　　. 3600000 NS M.ROOT-SERVERS.NET.
　　　　M.ROOT-SERVERS.NET. 3600000 A 202.12.27.33
　　; End of File
　　17、我们还需要配置/etc/resolv.conf、/etc/hosts、/etc/hosts.conf文件以适应新的状况。
　　18、一切都结束后，用/usr/sbin/ndc start命令启动bind,同样的可用stop、restart、reload等命令参数操作。
　　19、启动后用nslookup命令(有的系统推荐使用dig命令)检验是否正确。如果出现错误，该命令将不能启动。一般的错误都是数据库文件或配置文件笔误所至。比如少个“.”或者文件明不正确等等。
　　(2) 安装sendmail服务器
　　1、从www.sendmail.org下载最新的版本(这个snedmail倒是有必要升级为最新的版本，因为它的升级主要是安全漏洞问题)。这里说明的是用的sendmail-8.12.2.tar.gz
　　2、cd /usr/local/src/
　　3、把文件下载到：/usr/local/src中
　　4、tar zxvf sendmail-8.12.2.tar.gz
　　5、cd /usr/local/src/sendmail-8.12.2
　　6、chmod go-w / /etc /etc/mail /usr /var /var/spool /var/spool/mqueue
　　7、chown root / /etc /etc/mail /usr /var /var/spool /var/spool/mqueue
　　8、cd /usr/local/src/sendmail-8.12.2/sendmail
　　9、sh Build
　　10、cd /usr/local/src/sendmail-8.12.2/cf/cf
　　11、建立文件sendmail.mc内容如下，你可根据需要修改相应部分。
　　divert(-1)
　　dnl This is the macro config file used to generate the /etc/sendmail.cf
　　dnl file. If you modify thei file you will have to regenerate the
　　dnl /etc/sendmail.cf by running this macro config through the m4
　　dnl preprocessor:
　　dnl m4 /etc/sendmail.mc > /etc/sendmail.cf
　　dnl You will need to have the Sendmail-cf pacage installed for this to work.
　　include(`/usr/local/src/sendmail-8.12.2/cf')
define(`confDEF_USER_ID',`8:12')
OSTYPE(`linux')
undefine(`UUCP_RELAY')
undefine(`BITNET_RELAY')
define(`confTO_CONNECT', `1m')
define(`confTRY_NULL_MX_LIST',true)
define(`confDONT_PROBE_INTERFACES',true)
define(`PROCMAIL_MAILER_PATH',`/usr/bin/procmail')
define(`SMART_HOST',compaq.rd.21vianet.com)
　　 　

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