1、從www.sendmail.org下載最新的版本(這個(gè)snedmail倒是有必要升級(jí)為最新的版本,因?yàn)樗纳?jí)主要是安全漏洞問題)。這里說(shuō)明的是用的sendmail-8.12.2.tar.gz
2、cd /usr/local/src/
3、把文件下載到:/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內(nèi)容如下,你可根據(jù)需要修改相應(yīng)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.xxx.com)
---這條用于(非HUB)缺省使用HUB發(fā)送郵件
MASQUERADE_AS(`rd.xxx.com')
-------------------------
FEATURE(`masquerade_entire_domain')
---這三條用于郵件地址偽裝
FEATURE(`masquerade_envelope')
-------------------------
FEATURE(`smrsh',`/usr/sbin/smrsh')
FEATURE(`mailertable',`hash -o /etc/mail/mailertable')
FEATURE(`virtusertable',`hash -o /etc/mail/virtusertable')
FEATURE(redirect)
FEATURE(always_add_domain)
FEATURE(use_cw_file)
FEATURE(local_procmail)
FEATURE(`access_db')
FEATURE(`blacklist_recipients')
FEATURE(`accept_unresolvable_domains')
MAILER(smtp)
MAILER(procmail)
dnl We strongly recommend to comment this one out if you want to protect
dnl yourself from spam. However, the laptop and users on computers that do
dnl not hav 24x7 DNS do need this.
dnl FEATURE(`relay_based_on_MX')
12、sh Build install-cf
13、groupadd smmsp
14、useradd smmsp
15、cd cd /usr/local/src/sendmail-8.12.2/sendmail
16、sh Build install
17、cd /usr/local/src/sendmail-8.12.2/makemap
18、sh Build clean
19、sh Build all
20、sh Build install
21、cd /usr/local/src/sendmail-8.12.2/
22、在本域DNS主數(shù)據(jù)庫(kù)文件中增加MX紀(jì)錄:
rd.xxx.com. IN MX 0 compaq
注意修改相應(yīng)部分。那個(gè)0是有幾個(gè)郵件集中器的時(shí)候用于標(biāo)記先后順序的。當(dāng)有好幾個(gè)MX的時(shí)候,建議順序?qū)憺?0、20、30…
23、在/etc/mail目錄下創(chuàng)建access文件,內(nèi)容類似如下:
127.0.0.1 RELAY
21.9.22 RELAY
211.99.221.238 RELAY
然后:makemap hash access.db access
24、創(chuàng)建文件/etc/mail/local-host-names,其內(nèi)容為本機(jī)的擁有的域名信息。
rd.xxx.com
compaq.rd.xxx.com
25、創(chuàng)建文件/etc/mail/aliases,內(nèi)容類似:
MAILER-DAEMON: postmaster
postmaster: root
bin: root
daemon: root
nobody: root
運(yùn)行newaliases創(chuàng)建數(shù)據(jù)庫(kù)。
創(chuàng)建別名文件的意義之一在于當(dāng)郵件發(fā)往域中其他郵件服務(wù)器的用戶而不是mail HUB用戶的時(shí)候用。
比如增加一條:
atan: atan@fbsd
則導(dǎo)致郵件發(fā)往mail HUB的時(shí)候自動(dòng)轉(zhuǎn)發(fā)到atan@fbsd.rd.xxx.com
26、啟動(dòng)sendmail: /usr/sbin/sendmail -bd -q30m
排錯(cuò):如果有問題導(dǎo)致啟動(dòng)不了,大部分問題和DNS配置有關(guān),可以使用nslookup檢查DNS是否正常。挨個(gè)檢查/etc/mail中的文件內(nèi)容也是排錯(cuò)的好辦法。另外,修改配置,不建議直接編輯sendmail.cf文件,建議使用m4宏編譯工具,因?yàn)橛行в邪踩┒椿蜻^時(shí)的宏在編譯的時(shí)候會(huì)有提示,這樣以免造成相關(guān)安全問題。
通過上面文章,我們應(yīng)該了解了在Linux下安裝Sendmail服務(wù)器的方法,希望對(duì)你們有幫助!