本文介绍如何给公司的邮件服务器加个病毒扫描，综合考虑了几种方案后，认为qmail-scanner+clamav(主要是因为免费)比较合适，这种方案的优点就是如果你的qmailqueue-patch在安装时就打好了，原系统基本不动。 所需软件（假定你有QMAIL系统，且能正常运行）

 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 

tar zxvf maildrop-1.5.2.20030423.tar.gz ./configure [options]    make    make install-strip    make install-man 

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  

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 QMAILQUEUE2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 主要的排错监测日志 /var/spool/qmailscan/quarantine.log /var/spool/qmailscan/qmail-queue.log  /var/log/clamd.log /var/qmail/maillog