centos clamav杀毒软件安装配置及查杀，没想到linux下病毒比windows还多！
一、手动安装
1、下载(官网)
cd /soft
wget http://www.clamav.net/downloads
2、解压
cd /soft
tar zxvf clamav-0.99.2.tar.gz -C /usr/local/src
cd /usr/local/
mkdir clamav
cd /usr/local/src/clamav-0.99.2
3、编译、安装
#准备编译环境
yum -y install gcc
yum -y install openssl-devel
yum -y install libxml2-devel
yum -y install llvm-devel
yum -y install libcurl-devel
#编译选项检查
./configure –prefix=/usr/local/clamav
#编译
make
#安装
make install
4、配置
groupadd clamav
useradd -r -g clamav -s /bin/false clamav
修改/usr/local/clamav/etc/clam.conf 将开始的有”Example”的那行用#注释掉。
修改/usr/local/clamav/etc/freshclam.conf 将开始的有”Example”的那行用#注释掉
cd /usr/local/clamav/share
mkdir clamav
chown clamav clamav
chgrp clamav clamav
chmod -R 777 clamav
cd /var/log/
vi clam.log
:wq
vi clam-update.log
:wq
vi freshclam.log
:wq
5、升级病毒库
cd /usr/local/clamav/bin
./freshclam #更新病毒库
#reshclam运行以后，share目录下的clamav文件夹中已经存在了最新的特征库文件，下面就可以用clamscan命令进行文件的扫描了
6、启动服务
service clamd start
7、执行查杀：
ln -s /usr/local/clamav/bin/ /usr/local/sbin/
/usr/local/clamav/bin/clamscan –查杀当前目录下的文件
/usr/local/clamav/bin/clamscan -r –查杀当前目录的所有文件及目录
/usr/local/clamav/bin/clamscan dir –查杀dir目录
/usr/local/clamav/bin/clamscan -r dir –查杀目录dir下的所有文件及目录
/usr/local/clamav/bin/clamscan –remove –扫描到感染文件后直接删除
/usr/local/clamav/bin/clamscan -l /*.log –保存扫描日志
全盘查杀
cd /
/usr/local/clamav/bin/clamscan -r –remove
8、病毒库自动更新
vi /etc/crontab
添加：
1 3 * * * root /usr/local/clamav/bin/freshclam –quiet #定时更新升级病毒库
20 3 * * * root /usr/local/clamav/bin/clamscan -r /home –remove #定时查杀 /home目录
9、重启定时任务服务
service crond restart #定时任务服务重启
大功告成！
