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  • Centos7安装杀毒软件ClamAV

    Clam AntiVirus(ClamAV)是免费而且开放源代码的防毒软件,软件与病毒码的更新皆由社群免费发布。目前ClamAV主要是使用在Linux、FreeBSD等Unix-like系统架设的邮件服务器上,提供电子邮件的病毒扫描服务.


    安装EPEL源

    (http://www.cyberciti.biz/faq/installing-rhel-epel-repo-on-centos-redhat-7-x/)

    Clamav可以通过EPEL源来安装,所以要首先安装EPEL,可以采用两种方法来安装:

    第一种,通过命令行安装

    [root@server_for_product ~]# yum install epel-release

    第二种,使用下载好的安装包进行安装

    [root@server_for_product ~]# cd /tmp

    [root@server_for_product tmp]# wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

    ls *.rpm

    [root@server_for_product tmp]# yum install epel-release-7.noarch.rpm


    刷新安装源并查看是否已经安装

    [root@server_for_product ~]# yum repolist

    看到以下字样就代表安装完成

    epel/x86_64 Extra Packages for Enterprise Linux 7 - x86_64

    查看EPEL源含有的安装包

    [root@server_for_product ~]# yum --disablerepo="*" --enablerepo="epel" list available | less


    安装ClamAV

    在安装了EPEL源后,运行下面的命令安装ClamAV

    [root@server_for_product ~]# yum install clamav-server clamav-data clamav-update clamav-filesystem clamav clamav-scanner-systemd clamav-devel clamav-lib clamav-server-systemd -y


    在两个配置文件/etc/freshclam.conf和/etc/clamd.d/scan.conf中移除“Example”字符

    [root@server_for_product ~]#sed -i -e “s/^Example/#Example/” /etc/freshclam.conf

    [root@server_for_product ~]#sed -i -e “s/^Example/#Example/” /etc/clamd.d/scan.conf


    手动更新病毒库

    [root@server_for_product ~]# freshclam


    顺便一提,freshclam命令通过文件/etc/cron.d/clamav-update来自动运行,该文件的内容

    ## Adjust this line...

    MAILTO=root

    ## It is ok to execute it as root; freshclam drops privileges and becomes

    ## user 'clamupdate' as soon as possible

    0 */3 * * * root /usr/share/clamav/freshclam-sleep


    但默认情况下是禁止了自动更新功能,需要移除文件/etc/sysconfig/freshclam最后一行的配置才能启用

    ## Adjust this line...

    MAILTO=root

    ## It is ok to execute it as root; freshclam drops privileges and becomes

    ## user 'clamupdate' as soon as possible

    0 */3 * * * root /usr/share/clamav/freshclam-sleep

    [root@server_for_product kylin]# ^C

    [root@server_for_product kylin]# tail /etc/sysconfig/freshclam

    ## This option accepts two special values:

    ## 'disabled-warn' ... disables the automatic freshclam update and

    ## gives out a warning

    ## 'disabled' ... disables the automatic freshclam silently

    # FRESHCLAM_DELAY=

    ### !!!!! REMOVE ME !!!!!!

    ### REMOVE ME: By default, the freshclam update is disabled to avoid

    ### REMOVE ME: network access without prior activation

    FRESHCLAM_DELAY=disabled-warn # REMOVE ME

    记得移除上面红色字体。


    定义服务器类型(本地或者TCP),在这里定义为使用本地socket,将文件/etc/clam.d/scan.conf中的这一行前面的注释符号去掉:

    #LocalSocket /var/run/clamd.scan/clamd.sock


    配置开机启动

    [root@server_for_product ~]# systemctl enable clamd@scan

    [root@server_for_product ~]# ln -s ‘/usr/lib/systemd/system/clamd@scan.service’ ‘/etc/systemd/system/multi-user.target.wants/clamd@scan.service’


    启动并检查服务状态

    [root@server_for_product ~]# systemctl start clamd@scan

    [root@server_for_product ~]# systemctl status clamd@scan

    看到active字样就表示安装成功。


    备注

    如果在手动更新病毒库的时候遇到错误:Update failed. Your network may be down or none of the mirrors listed in freshclam.conf is working.

    此时就要删除掉旧的镜像地址文件

    [root@server_for_product ~]# rm -f /var/lib/clamav/mirrors.dat

    再手动更新一次病毒库

    [root@server_for_product ~]# freshclam


    本文地址:http://www.linuxdiyf.com/linux/18635.html

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  • 原文地址:https://www.cnblogs.com/chunguang/p/5668798.html
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