NET-SNMP学习（一）subagent_sub-agents-优快云博客

本文链接：https://blog.youkuaiyun.com/finderskill/article/details/80922097

本文介绍了NET-SNMP的安装与环境变量设置，详细讲解了如何配置snmpd.conf以启用子代理模式。接着，文章讨论了自定义MIB的编写，并提供了存放MIB的路径。通过snmptranslate命令验证MIB加载。此外，还阐述了使用mib2c工具生成子代理源码的过程，并指导如何编译和测试子代理程序。

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Net-Snmp安装参照链接完成并测试是否安装完成。

想要在任何地方使用需更新环境变量，添加snmp的路径到~/.bashrc中

添加完路径后，source更新。

一、snmpd.conf

snmpd.conf是snmp的基本环境配置，在上述链接中有说明如何修改。在这里要注意的是如果要使用子代理模式，需要在conf配置中添加“master agentx”开启snmp主代理模式。以下是conf配置文件：

###############################################################################
#
# EXAMPLE.conf:
#   An example configuration file for configuring the Net-SNMP agent ('snmpd')
#   See the 'snmpd.conf(5)' man page for details
#
#  Some entries are deliberately commented out, and will need to be explicitly activated
#
###############################################################################
#
#  AGENT BEHAVIOUR
#


#  Listen for connections from the local system only
#agentAddress  udp:127.0.0.1:161
#  Listen for connections on all interfaces (both IPv4 *and* IPv6)
#agentAddress udp:161,udp6:[::1]:161
agentAddress  udp:161




###############################################################################
#
#  SNMPv3 AUTHENTICATION
#
#  Note that these particular settings don't actually belong here.
#  They should be copied to the file /var/net-snmp/snmpd.conf
#     and the passwords changed, before being uncommented in that file *only*.
#  Then restart the agent


#  createUser authOnlyUser  MD5 "remember to change this password"
#  createUser authPrivUser  SHA "remember to change this one too"  DES
#  createUser internalUser  MD5 "this is only ever used internally, but still change the password"


#  If you also change the usernames (which might be sensible),
#  then remember to update the other occurances in this example config file to match.






###############################################################################
#
#  ACCESS CONTROL
#


                                                 #  system + hrSystem groups only
view   systemonly  included   .1.3.6.1.2.1.1
view   systemonly  included   .1.3.6.1.2.1.25.1
view   all         included   .1             # Full access from the local host
#rocommunity public  localhost
                                           #  Default access to basic system info
 rocommunity public  default 
 rwcommunity public  default


                            &n