!!! SNMP
!! net-snmp の場合
 pkg install net-snmp
 ####    env HTTP_PROXY="http://127.0.0.1:18080" pkg install net-snmp

! 詳細データを取るには

vi /etc/snmp/snmpd.conf
 # ここを動作させる 装置の IP にしないと。。動きません（笑）：：毎回とちる
 agentAddress  udp:192.168.0.2:161
 # agentAddress  udp:192.168.250.15:161

 # Make at least  snmpwalk -v 1 localhost -c public system fast again.
 #       name           incl/excl     subtree         mask(optional)
 view    systemview    included   .1
 # view   systemonly  included   .1.3.6.1.2.1.1
 # view   systemonly  included   .1.3.6.1.2.1.25.1
 #
 # disk / 10000

 # rocommunity public  localhost
 rocommunity public  192.168.250.15
 rocommunity myynet  localhost
                                                 #  Default access to basic system info
 rocommunity public  default    -V systemonly
 rocommunity myynet  default    -V systemonly

 # が あることを確認

 チェック方法
 snmpwalk -v 2c -c public 192.168.16.2 hrStorage

 snmptranslate -On HOST-RESOURCES-MIB::hrStorageAllocationUnits

! ??Patch???
https://sourceforge.net/p/net-snmp/bugs/2890/


! TIPs  
https://access.redhat.com/documentation/ja-jp/red_hat_enterprise_linux/7/html/system_administrators_guide/sect-system_monitoring_tools-net-snmp

https://changineer.info/server/monitoring/monitoring_snmpd.html#toc4

http://miyakoshi.mydns.jp/freebsd/mrtg.html


https://qiita.com/mugi-tea/items/ed0a2500326533af73e5