记录华三CAS虚拟化主机设置SNMPv2c

1.root登陆主机后查看snmpd状态，默认CAS系统的snmpd服务是没有启动的

[root@cvknode5 ~]# systemctl status snmpd
● snmpd.service - Simple Network Management Protocol (SNMP) Daemon.
   Loaded: loaded (/usr/lib/systemd/system/snmpd.service; disabled; vendor preset: disabled)
   Active: inactive (dead)

2.先把snmpd服务设置为开机启动

[root@cvknode5 ~]# systemctl enable snmpd
Created symlink from /etc/systemd/system/multi-user.target.wants/snmpd.service to /usr/lib/systemd/system/snmpd.service.

3.编辑/etc/snmp/snmpd.conf 

[root@cvknode5 ~]# vi /etc/snmp/snmpd.conf
com2sec notConfigUser  default       public 修改为 com2sec notConfigUser  default       xxx    #将public为默认团体名修改为自己的团体名

access  notConfigGroup ""      any       noauth    exact  systemview none none 修改为 access  notConfigGroup ""      any       noauth    exact  all none none

#在这两行下面再添加一行：
    view    systemview    included   .1.3.6.1.2.1.1
    view    systemview    included   .1.3.6.1.2.1.25.1.1
    
    view    systemview    included   .1.3.6.1.4.1.2021
    
#并取消以下两行的注释：
view all    included  .1                               80

view mib2   included  .iso.org.dod.internet.mgmt.mib-2 fc

4.在防火墙上开放161端口

[root@cvknode5 ~]# iptables -A INPUT -s 202.202.100.189 -p udp --dport 161 -j ACCEPT

[root@cvknode5 ~]# iptables -A INPUT -p udp --dport 161 -j DROP

[root@cvknode5 ~]# service iptables save

5.启动snmpd服务

[root@cvknode5 ~]# systemctl start snmpd

6.因为虚拟化都有很多台服务器，所以配置好一台服务器之后，就可以用把snmpd.conf复制到其它服务器，配置好开启启动和防火墙后启动服务就可以了

[root@cvknode6 ~]# scp root@xxx.xxx.xxx.xxx:/etc/snmp/snmpd.conf /etc/snmp/snmpd.conf