Python 开发环境搭建(5)：SNMP

使用的系统为Redhat 7.6 的64位，使用Net-SNMP 5.7版本

1. 安装mysql包
   rpm -ivh mysql-community-libs-compat*
   不安装这个包会出现如下报错
   
2. 安装

   cd /mnt/Packages
   rpm -ivh net-snmp
   yum install -y net-snmp-perl
   yum install -y net-snmp-utils
   yum install -y net-snmp-devel
   yum install -y net-snmp-lib
   

3. 验证
   可以使用下面的命令去验证你是否成功安装了Net-SNMP，如果你可以获取到正确的版本号，说明你已经成功安装了Net-SNMP
   snmpget --version
   
4. 配置snmpd.conf
   vi /etc/snmp/snmpd.conf

   ###############################################################################
   # Access Control
   ###############################################################################
   # First, map the community name "public" into a "security name"
   #       sec.name  source          community
   com2sec notConfigUser  default       public
   # Second, map the security name into a group name:
   #       groupName      securityModel securityName
   group   notConfigGroup v1           notConfigUser
   group   notConfigGroup v2c           notConfigUser
   # Third, create a view for us to let the group have rights to:
   # Make at least  snmpwalk -v 1 localhost -c public system fast again.
   #       name           incl/excl     subtree         mask(optional)
   #view    systemview    included   .1.3.6.1.2.1.1
   #view    systemview    included   .1.3.6.1.2.1.25.1.1
   # Finally, grant the group read-only access to the systemview view.
   #       group          context sec.model sec.level prefix read   write  notif
   access  notConfigGroup ""      any       noauth    exact  all none none
   # -----------------------------------------------------------------------------
   # YOU SHOULD CHANGE THE "COMMUNITY" TOKEN BELOW TO A NEW KEYWORD ONLY
   # KNOWN AT YOUR SITE.  YOU *MUST* CHANGE THE NETWORK TOKEN BELOW TO
   # SOMETHING REFLECTING YOUR LOCAL NETWORK ADDRESS SPACE.
   ##           incl/excl subtree                          mask
   view all    included  .1                               80
   ###############################################################################
   # System contact information
   #
   # It is also possible to set the sysContact and sysLocation system
   # variables through the snmpd.conf file:
   syslocation Unknown (edit /etc/snmp/snmpd.conf)
   syscontact Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
   ###############################################################################
   # Logging
   #
   # We do not want annoying "Connection from UDP: " messages in syslog.
   # If the following option is commented out, snmpd will print each incoming
   # connection, which can be useful for debugging.
   dontLogTCPWrappersConnects yes
   ###############################################################################
   com2sec notConfigUser  localhost Server_pu
   

5. 运行snmpd 且开机自启动

   chkconfig snmpd on
   systemctl start snmp
   

6. 可通过如下命令检查snmpd是否启动
   netstat -na | grep 161
   
   或
   ps aux | grep snmp
   
7. 测试snmpd
   可以用如下的几个命令获取系统开机时间，如果有正确的返回则说明snmp运行正常
   snmpwalk -v 2c -c public localhost sysUpTime.0
   

配置python获取netsnmp

pip install client
pip install python3-netsnmp