Apache

There are several built in filebeat modules you can use. You will need to enable the apache2 module. deb/rpm_

sudo filebeat modules list
sudo filebeat modules enable apache2

macOS

cd <EXTRACTED_ARCHIVE>
./filebeat modules list
./filebeat modules enable apache2

Windows

cd <EXTRACTED_ARCHIVE>
.\filebeat.exe modules list
.\filebeat.exe modules enable apache2

Additional module configuration can be done using the per module config files located in the modules.d folder, most commonly this would be to read logs from a non-default location

deb/rpm /etc/filebeat/modules.d/
mac/win <EXTRACTED_ARCHIVE>/modules.d/

deb/rpm /etc/filebeat/filebeat.yml
mac/win <EXTRACTED_ARCHIVE>/filebeat.yml

We'll be shipping to Logstash so that we have the option to run filters before the data is indexed.
Comment out the elasticsearch output block.

## Comment out elasticsearch output
#output.elasticsearch:
#  hosts: ["localhost:9200"]

Uncomment and change the logstash output to match below.

output.logstash:
    hosts: ["your-logstash-host:your-port"]
    loadbalance: true
    ssl.enabled: true

All Logit stacks come pre-configured with popular Logstash filters. We would recommend that you add Apache specific filters if you don't already have them, to ensure enhanced dashboards and modules work correctly.

Edit your Logstash filters by choosing Stack > Settings > Logstash Filters

if [fileset][module] == "apache2" {
  if [fileset][name] == "access" {
    grok {
      match => { "message" => ["%{IPORHOST:[apache2][access][remote_ip]} - %{DATA:[apache2][access][user_name]} \[%{HTTPDATE:[apache2][access][time]}\] \"%{WORD:[apache2][access][method]} %{DATA:[apache2][access][url]} HTTP/%{NUMBER:[apache2][access][http_version]}\" %{NUMBER:[apache2][access][response_code]} %{NUMBER:[apache2][access][body_sent][bytes]}( \"%{DATA:[apache2][access][referrer]}\")?( \"%{DATA:[apache2][access][agent]}\")?",
        "%{IPORHOST:[apache2][access][remote_ip]} - %{DATA:[apache2][access][user_name]} \\[%{HTTPDATE:[apache2][access][time]}\\] \"-\" %{NUMBER:[apache2][access][response_code]} -" ] }
      remove_field => "message"
    }
    mutate {
      add_field => { "read_timestamp" => "%{@timestamp}" }
    }
    date {
      match => [ "[apache2][access][time]", "dd/MMM/YYYY:H:m:s Z" ]
      remove_field => "[apache2][access][time]"
    }
    useragent {
      source => "[apache2][access][agent]"
      target => "[apache2][access][user_agent]"
      remove_field => "[apache2][access][agent]"
    }
    geoip {
      source => "[apache2][access][remote_ip]"
      target => "[apache2][access][geoip]"
    }
  }
  else if [fileset][name] == "error" {
    grok {
      match => { "message" => ["\[%{APACHE_TIME:[apache2][error][timestamp]}\] \[%{LOGLEVEL:[apache2][error][level]}\]( \[client %{IPORHOST:[apache2][error][client]}\])? %{GREEDYDATA:[apache2][error][message]}",
        "\[%{APACHE_TIME:[apache2][error][timestamp]}\] \[%{DATA:[apache2][error][module]}:%{LOGLEVEL:[apache2][error][level]}\] \[pid %{NUMBER:[apache2][error][pid]}(:tid %{NUMBER:[apache2][error][tid]})?\]( \[client %{IPORHOST:[apache2][error][client]}\])? %{GREEDYDATA:[apache2][error][message1]}" ] }
      pattern_definitions => {
        "APACHE_TIME" => "%{DAY} %{MONTH} %{MONTHDAY} %{TIME} %{YEAR}"
      }
      remove_field => "message"
    }
    mutate {
      rename => { "[apache2][error][message1]" => "[apache2][error][message]" }
    }
    date {
      match => [ "[apache2][error][timestamp]", "EEE MMM dd H:m:s YYYY", "EEE MMM dd H:m:s.SSSSSS YYYY" ]
      remove_field => "[apache2][error][timestamp]"
    }
  }
}

Let's check the configuration file is syntactically correct.

deb/rpm

sudo filebeat -e -c /etc/filebeat/filebeat.yml

macOS

cd <EXTRACTED_ARCHIVE>
./filebeat -e -c filebeat.yml

Windows

cd <EXTRACTED_ARCHIVE>
filebeat.exe -e -c filebeat.yml

Ok, time to start ingesting data!

deb/rpm

sudo systemctl enable filebeat
sudo systemctl start filebeat

mac

./filebeat

Windows

Start-Service filebeat