一，安裝clamav

1.yum install clamav -y

如果找不到包的話，只有下載源碼自己編譯安裝了。

tar zxf clamav-0.97.4.tar.gz

cd clamav-0.97.4

groupadd clamav

useradd -g clamav -s /bin/false clamav

./configure --prefix=/usr/local/clamav && make && make install

首先創建一個目錄.

mkdir /home/clamav/logs?????????? (clanav 日志目錄)

mkdir /usr/local/clamav/update??? (clanav 病毒庫目錄)

修改配置文件/usr/local/clamav/etc/clamd.conf

sed -i 's/Example/#Example/' /usr/local/clamav/etc/clamd.conf

sed -i '14 a\LogFile \/home\/clamav\/logs\/clamd.log' /usr/local/clamav/etc/clamd.conf

sed -i '57 a\PidFile \/usr\/local\/clamav\/update\/clamd.pid' /usr/local/clamav/etc/clamd.conf

sed -i '65 a\DatabaseDirectory \/usr\/local\/clamav\/update ' /usr/local/clamav/etc/clamd.conf

修改配置文件/usr/local/clamav/etc/freshclam.conf

sed -i 's/Example/#Example/' /usr/local/clamav/etc/freshclam.conf

sed -i '13 a\DatabaseDirectory \/usr\/local\/clamav\/update' /usr/local/clamav/etc/freshclam.conf

sed -i '18 a\UpdateLogFile \/home\/clamav\/logs\/freshclam.log' /usr/local/clamav/etc/freshclam.conf

sed -i '49 a\PidFile \/usr\/local\/clamav\/update\/freshclam.pid' /usr/local/clamav/etc/freshclam.conf

sed -i '103 a\Checks 4' /usr/local/clamav/etc/freshclam.conf

sed -i '78 a\DatabaseMirror clamav.inet6.fr' /usr/local/clamav/etc/freshclam.conf

sed -i '78 a\DatabaseMirror clamav.netopia.pt' /usr/local/clamav/etc/freshclam.conf

sed -i '78 a\DatabaseMirror clamav.sonic.net' /usr/local/clamav/etc/freshclam.conf

下面創建日志文件

touch /home/clamav/logs/freshclam.log

chown clamav:clamav /home/clamav/logs/freshclam.log

touch /home/clamav/logs/clamd.log

chown clamav:clamav /home/clamav/logs/clamd.log

chown clamav:clamav /usr/local/clamav/update

創建軟連接：

ln -s /usr/local/clamav/bin/clamscan /usr/bin/clamscan

ln -s /usr/local/clamav/bin/freshclam /usr/bin/freshclam

二，下載病毒庫

1.freshclam? --verbose

freshclam上面這個命令是更新病毒庫，如果沒有，會自動下載，不過比較慢。你也可以手動下載，http://www.clamav.net/lang/en/，下二個就可以main.cvd、daily.cvd、bytecode.cvd。把下載的病毒庫文件放到/usr/local/clamav/update目錄下面，就行了。

2.手工下載病毒庫文件：

cd /usr/local/clamav/update

wget wget http://db.local.clamav.net/daily.cvd

wget http://db.local.clamav.net/main.cvd

wget http://db.local.clamav.net/bytecode.cvd

三，查看一下clamav進程

[root@Test208 update]# ps ax |grep clam

4858 ???????? Ss???? 0:00 /usr/bin/freshclam -d --quiet

5401 pts/0??? S+???? 0:00 grep --color=auto clam

[root@Test208 update]# ps ax |grep clam

4858 ???????? Ss???? 0:00 /usr/bin/freshclam -d --quiet

5401 pts/0??? S+???? 0:00 grep --color=auto clam

四，一些常規用法舉例

1，掃描某個目錄，clamscan -r /home/

2，將掃描結果存放到log中，clamscan -r /home/ -l /usr/local/clamav/logs/clamd.log

3，掃描過程中，只顯示有問題的文件并且發出警報聲音，clamscan -r --bell -i /home/

4，掃描到有問題的文件，直接刪除，clamscan -r --remove /home/ > /home/clamscan.log，這一步要小心，最好不要這樣操作，如果刪除了系統文件就麻煩了,可能導致系統崩潰。

五，掃描結果

[root@Test208 update]# clamscan -r /home/

/home/xhprof/xhprof_html/callgraph.php: OK

/home/xhprof/xhprof_html/css/xhprof.css: OK

....................................................

/home/xhprof/xhprof_lib/utils/callgraph_utils.php: OK

/home/xhprof/xhprof_lib/utils/xhprof_runs.php: OK

/home/xhprof/xhprof_lib/utils/xhprof_lib.php: OK

/home/xhprof/xhprof_lib/display/typeahead_common.php: OK

/home/xhprof/xhprof_lib/display/xhprof.php: OK

----------- SCAN SUMMARY -----------

Known viruses: 1210664

Engine version: 0.97.4

Scanned directories: 145

Scanned files: 1096

Infected files: 0

Data scanned: 54.04 MB

Data read: 45.68 MB (ratio 1.18:1)

Time: 7.834 sec (0 m 7 s)

六、定期掃描

crontab -e

添加如下兩行：

30 5 * * * clamscan -ri --remove /tmp /home >> /home/clamav/logs/clamd.log? --每天5:30運行

10 2 * * 7 clamscan -ri --remove /home >> /home/clamav/logs/clamd.log?????? --每周日2:10運行

總結

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