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十六、安装Spamassassin-3.2.3    (2007.9.19新增)

1、依赖关系的解决,安装Spamassassin需要很多perl模块的支持,以下是所需模块列表及安装方法;

必须的软件包:
Digest::SHA1
HTML::Parser
Net::DNS
LWP (aka libwww-perl)
HTTP::Date
IO::Zlib
Archive::Tar

可选的软件包,其中有些后面的amavisd也有可能会用到:
MIME::Base64
DB_File
Net::SMTP
Mail::SPF
IP::Country::Fast
Net::Ident
IO::Socket::INET6
IO::Socket::SSL
Compress::Zlib
Time::HiRes
Mail::DKIM
Mail::DomainKeys
DBI *and* DBD driver/modules
Encode::Detect
Apache::Test
Razor2

推荐使用CPAN自动安装(你的主机要能连上Internet),它能够自动下载安装,并能解决安装过程中的依赖关系。您可以使用类同的以下的命令来进行安装:
#perl -MCPAN -e shell
cpan> install Digest::SHA1
………………

如果您的主机无法直接连接到Internet,您也可以到http://search.cpan.org上搜索下载所需要的软件包,而后使用类同的下列命令安装:

#tar zxvf 软件包.tar.gz
#cd 软件包
#perl Makefile.PL
#make
#make test
#make install
说明:某些软件包安装的过程中可能需要已经列出的其它软件包的支持(可以先尝试安装Spamassassin,然后按提示补充所需软件包),请安照提示自行调整安装顺序。另外,其中有个软件包安装过程中可能要求声明环境变量LC_ALL,此时,可输入如下命令,并重新进行软件包的编译安装即可。
#export LC_ALL=C

2、安装Spamassassin-3.2.3

#tar jxvf Mail-SpamAssassin-3.2.3.tar.bz2
#cd Mail-SpamAssassin-3.2.3
#perl Makefile.PL
#make
#make check
#make istall

3、编辑主配置文件/etc/mail/spamassassin/local.cf

required_hits 10.0
rewrite_subject 1
required_score 5.0
rewrite_header Subject *****SPAM*****
report_safe     1
use_bayes       1
bayes_auto_learn        1
skip_rbl_checks         1
use_razor2      0
use_pyzor       0
ok_locales      all


4、测试spamassassin

#spamassassin -t < sample-nonspam.txt > nonspam.out
#spamassassin -t < sample-spam.txt > spam.out

查看测试结果:

#less nonspam.out
#less spam.out

5、检查配置文件

#spamassassin -d --lint

6、启动进程,并将其加入到自动启动队列

#/usr/bin/spamd -d
#echo "/usr/bin/spamd -d" >> /etc/rc.local

十七、安装amavisd-new-2.5.2

1、依赖关系的解决

以下为官方声明所必须的软件包列表,你可以采用类同安装Spamassassin一节中的perl模块的安装方法进行安装

Archive::Zip   (Archive-Zip-x.xx) (1.14 or later should be used!)
Compress::Zlib (Compress-Zlib-x.xx) (1.35 or later)
Convert::TNEF  (Convert-TNEF-x.xx)
Convert::UUlib (Convert-UUlib-x.xxx) (1.08 or later, stick to new versions!)
MIME::Base64   (MIME-Base64-x.xx)
MIME::Parser   (MIME-Tools-x.xxxx) (latest version from CPAN - currently 5.420)
Mail::Internet (MailTools-1.58 or later have workarounds for Perl 5.8.0 bugs)
Net::Server    (Net-Server-x.xx) (version 0.88 finally does setuid right)
Digest::MD5    (Digest-MD5-x.xx) (2.22 or later)
IO::Stringy    (IO-stringy-x.xxx)
Time::HiRes    (Time-HiRes-x.xx) (use 1.49 or later, older can cause problems)
Unix::Syslog   (Unix-Syslog-x.xxx)
BerkeleyDB     with bdb library 3.2 or later (4.2 or later preferred)

2、安装amavisd-new-2.5.2

创建运行时目录,并赋予amavis用户(前文中所建)
# mkdir -pv /var/amavis/{tmp,var,db,home}
# chown -R amavis:amavis /var/amavis
#chmod -R 750 /var/amavis

#tar zxvf amavisd-new-2.5.2.tar.gz
#cd amavisd-new-2.5.2

拷贝服务端至$PATH中指定的目录,推荐拷贝至/usr/local/sbin:
#cp amavisd /usr/local/sbin/
#chown root /usr/local/sbin/amavisd
#chmod 755  /usr/local/sbin/amavisd

拷贝主配置文件至/etc,并修改相应的权限:
#cp amavisd.conf /etc
# chown root:amavis /etc/amavisd.conf
# chmod 640 /etc/amavisd.conf

创建amavisd运行中所需要的隔离区域:
# mkdir -v /var/virusmails
# chown amavis:amavis /var/virusmails/
# chmod 750 /var/virusmails/

3、编辑主配置文件
#vi /etc/amavisd.conf

确保您的如下选项的值如下文所示:
$daemon_user  = 'amavis';
$daemon_group = 'amavis';
$mydomain = 'benet.org'; (此处可更改为您集体的域)

$virus_admin               = "postmaster\@$mydomain";  
$mailfrom_notify_admin     = "postmaster\@$mydomain";  
$mailfrom_notify_recip     = "postmaster\@$mydomain";  
$mailfrom_notify_spamadmin = "postmaster\@$mydomain";
$mailfrom_to_quarantine = '';

virus_admin_maps => ["postmaster\@$mydomain"]    (指定报告病毒和垃圾邮件时发送系统邮件的用户身份)
spam_admin_maps  => ["postmaster\@$mydomain"]

启用ClamAV,(大概在第355行)去掉如下行前的注释符:
#['ClamAV-clamd',
#     \&ask_daemon, ["CONTSCAN {}\n", "/var/run/clamav/clamd"],
#    qr/\bOK$/, qr/\bFOUND$/,
#      qr/^.*?: (?!Infected Archive)(.*) FOUND$/ ],
#     ['Mail::ClamAV', \&ask_clamav, "*", [0], [1], qr/^INFECTED: (.+)/],

并将如上行中的/var/run/clamav/clamd修改为:/var/run/clamav/clamd.socket

4、测试启动

#/usr/local/sbin/amavisd

您也可以按如下命令调试启动
#/usr/local/sbin/amavisd debug


5、修改postfix的配置,让它能调用amavisd,以实现病毒及垃圾邮件的过滤

#vi /etc/postfix/master.cf
在文末添加如下内容:

# ==========================================================================
# service type  private unpriv  chroot  wakeup  maxproc command + args
#               (yes)   (yes)   (yes)   (never) (100)
# ==========================================================================
#
amavisfeed unix    -       -       n       -       2     smtp
    -o smtp_data_done_timeout=1200
    -o smtp_send_xforward_command=yes
    -o disable_dns_lookups=yes
    -o max_use=20
#
127.0.0.1:10025 inet n    -       n       -       -     smtpd
    -o content_filter=
    -o smtpd_delay_reject=no
    -o smtpd_client_restrictions=permit_mynetworks,reject
    -o smtpd_helo_restrictions=
    -o smtpd_sender_restrictions=
    -o smtpd_recipient_restrictions=permit_mynetworks,reject
    -o smtpd_data_restrictions=reject_unauth_pipelining
    -o smtpd_end_of_data_restrictions=
    -o smtpd_restriction_classes=
    -o mynetworks=127.0.0.0/8
    -o smtpd_error_sleep_time=0
    -o smtpd_soft_error_limit=1001
    -o smtpd_hard_error_limit=1000
    -o smtpd_client_connection_count_limit=0
    -o smtpd_client_connection_rate_limit=0
    -o receive_override_options=no_header_body_checks,no_unknown_recipient_checks,no_milters
    -o local_header_rewrite_clients=

说明:注意每行“-o”前的空格;


#vi /etc/postifx/main.cf
在文末添加如下行:
content_filter=amavisfeed:[127.0.0.1]:10024

4、让postfix重新加载主配置文件,并查看启动情况

# postfix reload && tail -f /var/log/maillog

5、查看amavisd是否在监听10024端口,并测试服务启动情况:

# telnet localhost 10024
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 [127.0.0.1] ESMTP amavisd-new service ready
EHLO localhost
250-[127.0.0.1]
250-VRFY
250-PIPELINING
250-SIZE
250-ENHANCEDSTATUSCODES
250-8BITMIME
250-DSN
250 XFORWARD NAME ADDR PROTO HELO
Quit  
221 2.0.0 [127.0.0.1] amavisd-new closing transmission channel
Connection closed by foreign host.

6、postfix重新加载配置文件后将授权并激活"127.0.0.1:10025"端口,一个正常的服务连接应该类同下面所示:

# telnet localhost 10025
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 Welcome to our mail.benet.org ESMTP,Warning: Version not Available
EHLO localhost
250-mail.benet.org
250-PIPELINING
250-SIZE 14336000
250-VRFY
250-ETRN
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
QUIT
221 2.0.0 Bye
Connection closed by foreign host.

7、通过amavisd测试发信

]# telnet localhost 10024
Trying 127.0.0.1...
Connected to localhost.localdomain (127.0.0.1).
Escape character is '^]'.
220 [127.0.0.1] ESMTP amavisd-new service ready
HELO localhost
250 [127.0.0.1]
MAIL FROM:<>
250 2.1.0 Sender <> OK
RCPT TO:
250 2.1.5 Recipient OK
DATA
354 End data with .
From:Anti-Virus tester
To: MailServer Admin
Subject:amavisd test!
amavisd test!!
.
250 2.0.0 Ok: queued as 263FC1A609
quit
221 2.0.0 [127.0.0.1] amavisd-new closing transmission channel
Connection closed by foreign host.

接下来使用root用户测试收信
# mail
Mail version 8.1 6/6/93.  Type ? for help.
"/var/spool/mail/root": 1 message 1 new
>N  1 Anti-Virus tester     Wed Sep 19 01:19  23/798   "amavisd test!"
& 1
Message 1:
From MAILER-DAEMON  Wed Sep 19 01:19:16 2007
X-Original-To: postmaster
Delivered-To: postmaster@benet.org
X-Quarantine-ID: <3gmvpc8RxPtn>
X-Virus-Scanned: amavisd-new at benet.org
X-Amavis-Alert: BAD HEADER, MIME error: error: unexpected end of header
From:Anti-Virus tester
To: MailServer Admin
Subject:amavisd test!
Date: Wed, 19 Sep 2007 01:19:15 +0800 (CST)

amavisd test!!
&
内文分页: [1] [2] [3] [4] [5] [6] [7] [8] [9]

最后编辑: selboo 编辑于2010/07/23 20:34
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