1 安装 SNMP
pkg_add ftp://ftp.usa.openbsd.org/pub/OpenBSD/6.4/packages/amd64/net-snmp
2 配置 SNMP
#vi /etc/rc.local(使 SNMP 服务开机启动,添加如下内容) if [ -x /usr/local/sbin/snmpd ];then echo –n ‘snmpd’; /usr/local/sbin/snmpd fi #
3 添加防火墙策略
#vi /etc/pf.conf block in all pass on em0 udp to port 161 # pfctl -f /etc/pf.conf(载入 pf.conf 文件) #pfctl –sr(显示当前的过滤规则)