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构建邮件服务器牢固的病毒防护系统

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发表于 2009-7-18 13:49:02 | 显示全部楼层 |阅读模式 来自 河北省沧州市
1)maildrop-1.5.2.20030423.tar.gz

  2)perl-Time-HiRes-1.38-3.i386.rpm

  3)clamav-0.65.tar.gz

  4)qmail-scanner-1.20.tgz

  一、maildrop安装

  tar zxvf maildrop-1.5.2.20030423.tar.gz

  ./configure [options]

  make

  make install-strip

  make install-man

  二、安装 perl-Time-HiRes-1.38-3.i386.rpm

  rpm -ivh perl-Time-HiRes-1.38-3.i386.rpm

  三、安装clamav-0.65.tar.gz

  grouadd clamav

  useradd –g clamav –s /bin/false clamav

  tar zxvf clamav-0.65.tar.gz

  cd clamav-0.65

  ./configure

  make check

  make install

  更新病毒库,freshclam

  把freshclam加入crontab 定时更新病毒库;

  修改/usr/local/etc/clamav.conf;

  Example前加# 或删掉;

  执行clamscan 测试;

  执行clamd;

  然后执行clamdscan。

  四、安装qmail-scanner-1.20.tgz

  groupadd qscand

  useradd –g qscand –s /bin/false qscand

  tar zxvf qmail-scanner-1.20.tgz

  cd qmail-scanner-1.20

  ./configure --qmail-queue-binary /var /qmail/bin/qmail-queue --admin postmaster --domain abc.com.cn --notify sender,admin --local-domains abc.com.cn --lang en_GB--debug yes --unzip yes --scanners clamscan

  检查有无错误,然后安装./configure --qmail-queue-binary /var /qmail/bin/qmail-queue --admin postmaster --domain abc.com.cn --notify sender,admin --local-domains abc.com.cn --lang en_GB--debug yes --unzip yes --scanners clamscan --install

  看看是否在/var/qmail/bin/qmail-scanner-queue.pl是否存在:

  chown qscand:qscand /var/qmail/bin/qmail-scanner-queue.pl

  chmod 4755 /var/qmail/bin/qmail-scanner-queue.pl

  然后用一个普通用户登陆,执行/var/qmail/bin/qmail-scanner-queue.pl -z

  如果没有Can't do setuid出现,恭喜你,如果有回到安装文件目录,有个contrib目录。

  make

  make install

  附加步骤:

  chown qscand:qscand /var/qmail/bin/qmail-scanner-queue

  chmod 4755 /var/qmail/bin/qmail-scanner-queue

  chmod 0755 /var/qmail/bin/qmail-scanner-queue.pl

  然后用一个普通用户登陆,执行/var/qmail/bin/qmail-scanner-queue -z

  /var/qmail/bin/qmail-scanner-queue –g

  修改环境变量:

  1、在你的qmail启动脚本加入

  QMAILQUEUE=/var/qmail/bin/qmail-scanner-queue.pl如果作了附加步骤用下面的:

  QMAILQUEUE=/var/qmail/bin/qmail-scanner-queue

  export QMAILQUEUE

  2、还有一种方法:请参考FAQ.php

  Instead set it under the tcpserver smtp rules file (you're using Qmail - so you already know what that is - right? :-). That way you can even setup Qmail-Scanner to only scan mail from particular SMTP client IP address ranges/etc. This is now the only officially supported mechanism. Set it something like this:

  #/etc/tcpserver/smtp.rules

  #

  # No Qmail-Scanner at all for mail from 127.0.0.1

  127.:allow,RELAYCLIENT="",RBLSMTPD="",QMAILQUEUE="/var/qmail/bin/qmail-queue"

  # Use Qmail-Scanner without SpamAssassin on any mail from the local network

  # [it triggers SpamAssassin via the presence of the RELAYCLIENT var]

  10.:allow,RELAYCLIENT="",RBLSMTPD="",QMAILQUEUE="/var/qmail/bin/qmail-scanner-queue.pl"

  #

  # Use Qmail-Scanner with SpamAssassin on any mail from the rest of the world

  :allow,QMAILQUEUE="/var/qmail/bin/qmail-scanner-queue.pl"

  Then run "maketcprules" or something like "tcprules /etc/tcp.smtp.cdb /etc/tcp.smtp.tmp < /etc/tcp.smtp" to rebuild the database

  重起qmail 测试,这里有测试程序:

  /youdir/software/qmail-scanner-1.20 test_installation.sh

  不知什么原因,我的clamscan 扫描不到病毒,经过测试,发现了原因,正确解决方法:

  修改qmail-scanner-queue.pl中的

  my $clamscan_options="-r --disable-summary --max-recursion=10 --max-space=1000000";为

  my $clamscan_options="-r --mbox --disable-summary --max-recursion=10 --max-space=1000000";

  就可以OK了。
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