安裝 BIND(Named) Agent 的方式

• 返回 Ubuntu 20.04 / CentOS7 安裝 LibreNMS 程序

• 這是 SNMP Extend

• named 服務的執行 user:group 是 named:named

• 至 bind/named 主機內安裝

  mkdir -p /var/cache/bind
  touch /var/cache/bind/stats
  chown -R named:named /var/cache/bind
  vi /etc/named.conf

  :
  options {
      ...
      statistics-file "/var/cache/bind/stats";
      zone-statistics yes;
      ...
  };
  :

  重新啟動 named

  systemctl restart named

• 執行檢查是否正確

  rndc stats && cat /var/cache/bind/stats

  如果正確, 應該會出現類似以下訊息<xtermrtf>

+++ Statistics Dump +++ (1594029813) ++ Incoming Requests ++

               392 QUERY

++ Incoming Queries ++

               122 A
                 4 MX
                99 TXT
               167 AAAA

++ Outgoing Rcodes ++

               392 NOERROR

++ Outgoing Queries ++ [View: internal]

               531 A

: : [8.B.D.0.1.0.0.2.IP6.ARPA (view: external)] [EMPTY.AS112.ARPA (view: external)] [HOME.ARPA (view: external)] [version.bind (view: _bind)] [hostname.bind (view: _bind)] [authors.bind (view: _bind)] [id.server (view: _bind)] — Statistics Dump — (1594029813) </xtermrtf>

• 安裝 bind agent

  yum install epel-release 
  yum install perl-File-ReadBackwards
  wget https://github.com/librenms/librenms-agent/raw/master/snmp/bind -O /etc/snmp/bind
  chmod +x /etc/snmp/bind
  /etc/snmp/bind

  執行後如果正確, 會出現類似以下訊息:<xtermrtf>

1062,1492,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,23,0,7,0,0,0,15,0,0,0,0,0,0,0,0,0,0,111,0,0,0,0,0,0,3 1148,799,0,0,0,0,0,0,0,0,0,60,177,0,0,0,0,7,0,12,0,0,0,4,0,0,0,0,0,0,0,0,0,0,171,0,0,0,0,0,0,3 2713,0,97,23,0,0,2713,24,97,1204,2215,498,1431,0,78,380,0,0,2690,23,0,0 610,1771,596,1748,59,3,0,1,278,0,390,38,322,328,1,113,388,1114,796,45,0,0,1569,0 14523,52,1399,1214,0,53,1787,1167,1928867,1068675,1068971,1032192,248832,248832 1259,749,0,0,0,0,0,0,56,0,0,32,51,0,0,0,0,5,0,305,8,0,0,1,218,0,0,0,0,0,0,0,0,0,76,0,0,26,0,0,0,0,0,0,115,0,0,0,0,0,0,0,0,0,0,120,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,3 3063,1895,3063,1323 529,1577,86,196,1,527,1577,107,195,0,0,1,0,0,0,0,0,527,78,1576,193,25,0,0,0,0,0,1,0,0,0,2,0,4,1,1 </xtermrtf>

• 修改 snmpd 設定

  vi /etc/snmp/snmpd.conf

  :
  extend bind /etc/snmp/bind

  重新啟動 snmpd

  systemctl restart snmpd

• https://docs.librenms.org/Extensions/Applications/#bind9-aka-named