Logstash 配置文件出错（？）（带有过滤器和 grok）

Question

我的日志文件是这样的：

Jan 1 22:54:17 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 70.77.116.190; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 2612;
Jan 1 22:54:22 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 61.164.41.144; dst: %DSTIP%; proto: udp; product: VPN-1 & FireWall-1; service: 5060; s_port: 5069;
Jan 1 22:54:23 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 69.55.245.136; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 2970;
Jan 1 22:54:41 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 95.104.65.30; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 2565;
Jan 1 22:54:43 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 222.186.24.11; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 2967; s_port: 6000;
Jan 1 22:54:54 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 74.204.108.202; dst: %DSTIP%; proto: udp; product: VPN-1 & FireWall-1; service: 137; s_port: 53038;
Jan 1 22:55:10 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 71.111.186.26; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 38548;
Jan 1 23:02:56 accept %LOGSOURCE% >eth1 inzone: External; outzone: Local; rule: 3; rule_uid: {723F81EF-75C9-4CBB-8913-0EBB3686E0F7}; service_id: icmp-proto; ICMP: Echo Request; src: 24.188.22.101; dst: %DSTIP%; proto:

这是我运行的配置文件：

input {
  file {
      path => "/etc/logstash/external_noise.log"
      type => "external_noise"
      start_position => "beginning"
      sincedb_path => "/dev/null"
  }
}
  filter {

    grok {
      match => [ 'message', '%{CISCOTIMESTAMP:timestamp} %{WORD:action} %{SPACE} %{DATA:logsource} %{DATA:interface} %{GREEDYDATA:kvpairs}' ]
     }
    kv   {
       source => "kvpairs"
       field_split => ";"
}

}
    output {
elasticsearch {
    action => "index"
    host => "localhost"
    index => "noise-%{+dd.MM.YYYY}"
    workers => 1
    }
 }

在我的 Kibana 中，我的字段与我指定的字段有些不同。此外，它的时间戳是我使用配置文件启动 logstash 的时间。 有一个字段是

message: Jan 1 22:54:17 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 70.77.116.190; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 2612;

据我所知，我已经过滤了它。我需要变异来添加字段吗？抱歉，我不是 ELK 的专家，我有兴趣了解并了解更多信息。

Answer 1

正如您在other question 中所说，您需要进行一些调整。但是，您可以自己弄清楚。

如果这是您的输入（复制自您的问题）：

Jan 1 22:54:17 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 70.77.116.190; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 2612;
Jan 1 22:54:22 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 61.164.41.144; dst: %DSTIP%; proto: udp; product: VPN-1 & FireWall-1; service: 5060; s_port: 5069;
Jan 1 22:54:23 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 69.55.245.136; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 2970;
Jan 1 22:54:41 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 95.104.65.30; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 2565;
Jan 1 22:54:43 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 222.186.24.11; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 2967; s_port: 6000;
Jan 1 22:54:54 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 74.204.108.202; dst: %DSTIP%; proto: udp; product: VPN-1 & FireWall-1; service: 137; s_port: 53038;
Jan 1 22:55:10 drop   %LOGSOURCE% >eth1 rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 71.111.186.26; dst: %DSTIP%; proto: tcp; product: VPN-1 & FireWall-1; service: 445; s_port: 38548;
Jan 1 23:02:56 accept %LOGSOURCE% >eth1 inzone: External; outzone: Local; rule: 3; rule_uid: {723F81EF-75C9-4CBB-8913-0EBB3686E0F7}; service_id: icmp-proto; ICMP: Echo Request; src: 24.188.22.101; dst: %DSTIP%; proto:

这是您的过滤器部分：

filter {
    grok {
            match => [ "message", "%{CISCOTIMESTAMP:timestamp} %{WORD:action}%{SPACE}%{DATA:logsource} %{DATA:interface} %{GREEDYDATA:kvpairs}" ]
         }
    kv   {
            source => "kvpairs"
            field_split => ";"
            value_split => ":"
    }
}

那么这是您的输出的（部分）：

     "timestamp" => "Jan 1 23:02:56"
        "action" => "drop",
     "logsource" => "%LOGSOURCE%",
     "interface" => ">eth1",
       "kvpairs" => "rule: 7; rule_uid: {C1336766-9489-4049-9817-50584D83A245}; src: 74.204.108.202; dst: %DSTIP%; proto: udp; product: VPN-1 & FireWall-1; service: 137; s_port: 53038;",
          "rule" => " 7",
     " rule_uid" => " {C1336766-9489-4049-9817-50584D83A245}",
          " src" => " 74.204.108.202",
          " dst" => " %DSTIP%",
        " proto" => " udp",
      " product" => " VPN-1 & FireWall-1",
      " service" => " 137",
       " s_port" => " 53038"

这适用于所有给定的日志行。我已经测试过了。 （请务必在您的 grok 模式中删除 %{SPACE} 周围的空格。）

如果您想删除输出中的 kvpairs 字段，请在您的 kv 过滤器中添加一行：

remove_field => "kvpairs"

如果你想覆盖logstash的@timestamp，添加date filter：

date {
    match => [ "timestamp", "MMM dd HH:mm:ss" ]
}