1.操作系统版本
[root@aws zabbix]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.4 (Maipo)
2.在安装zabbix的时候报错（红色是执行的语句），如下：
yum install zabbix-server-mysql zabbix-web-mysql
--> Finished Dependency Resolution
Error: Package: zabbix-web-3.4.7-1.el7.noarch (zabbix)
Requires: php-bcmath
Error: Package: zabbix-web-3.4.7-1.el7.noarch (zabbix)
Requires: php-mbstring
You could try using --skip-broken to work around the problem
You could try running: rpm -Va --nofiles --nodigest
3.这两个模块的yum源比较少，在网上发现163的yum源包含它们，那么就需要替换yum源，步骤如下：a.进入yum源目录
cd /etc/yum.repos.d
b.执行
[root@aws yum.repos.d]# wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
c.因为我目前是redhat7，所以要编辑这个文件，黑色加粗斜体是我改的，屏蔽3行，增加3行
# CentOS-Base.repo
#
# The mirror system uses the connecting IP address of the client and the
# update status of each mirror to pick mirrors that are updated to and
# geographically close to the client. You should use this for CentOS updates
# unless you are manually picking other mirrors.
#
# If the mirrorlist= does not work for you, as a fall back you can try the
# remarked out baseurl= line instead.
#
#
[base]
name=CentOS-$releasever - Base - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
#baseurl=http://mirrors.163.com/centos/$releasever/os/$basearch/
baseurl=http://mirrors.163.com/centos/7/os/x86_64/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7
#released updates
[updates]
name=CentOS-$releasever - Updates - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
#baseurl=http://mirrors.163.com/centos/$releasever/updates/$basearch/
baseurl=http://mirrors.163.com/centos/7/updates/x86_64/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7
#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras - 163.com
#mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
#baseurl=http://mirrors.163.com/centos/$releasever/extras/$basearch/
baseurl=http://mirrors.163.com/centos/7/extras/x86_64/
gpgcheck=1
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7
#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus - 163.com
#baseurl=http://mirrors.163.com/centos/$releasever/centosplus/$basearch/
gpgcheck=1
enabled=0
gpgkey=http://mirrors.163.com/centos/RPM-GPG-KEY-CentOS-7
4.清除和创建yum缓存
yum clean all
yum makecache
5.再次执行安装zabbix
yum install zabbix-server-mysql zabbix-web-mysql