[How-To] Zabbix

15 thoughts on “[How-To] Zabbix”

• Olivier says:

  15/01/2019 at 10:15

  Zabbix – Add Slack notif :

  Create a Slack webhook : https://custdev3.slack.com/apps/manage/custom-integrations

  Copy the following script to /usr/lib/zabbix/alertscripts/slack.sh

  #!/bin/bash
  
  # Slack incoming web-hook URL and user name
  zabbix_host=my_zabbix_host.lan
  webhook_url='https://hooks.slack.com/services/.../.../...'
  
  severity=$1
  host=$2
  trigger=$3
  triggerId=$4
  eventId=$5
  eventStatus=$6
  
  ## ###################################### ##
  ##  Slack notif message
  ## ###################################### ##
  case $eventStatus in
          PROBLEM)
              message="[PROBLEM] $trigger"
              ;;
          RECOVERY)
              message="[RECOVERY] $trigger"
              severity="Information"
              ;;
          RESOLVED)
              message="[RESOLVED] $trigger"
              severity="Information"
              ;;
          *)
              message="[$severity] $trigger"
  esac
  
  ## ###################################### ##
  ##  Slack notif color
  ## ###################################### ##
  case $severity in
          Information)
              color=good
              ;;
           
          Warning)
              color=warning
              ;;
           
          Average)
              color=warning
              ;;
          High)
              color=danger
              message="$message - High"
              ;;
          Disaster)
              color=danger
              message="$message - Disaster !!!"
              ;;
           
          *)
              color=#333333
   esac
   
   
  eventViewUrl="http://${zabbix_host}/zabbix.php?action=acknowledge.edit&eventids%5B0%5D=${eventId}"
  triggerViewUrl="http://${zabbix_host}/zabbix.php?action=problem.view&filter_triggerids%5B%5D=${triggerId}&filter_set=1"
  
  message="${message}\n<${triggerViewUrl}|See Trigger> | <${eventViewUrl}|See Event>"
   
  CONTENT="{'username':'Zabbix@$host', 'attachments': [{'color': '$color', 'text':'$message'}]}"
  
  curl -X POST -H 'Content-type: application/json' --data "$CONTENT" $webhook_url
  

  In Zabbix webapp, create a new Action (Configuration > Action > Create) with:
  New Operation:
  – Operation Type = Remote Command
  – Target = Current Host
  – Type = Custom Script
  – Execute On = Zabbix Server
  – Commands = /usr/lib/zabbix/alertscripts/slack.sh “{TRIGGER.SEVERITY}” “{HOST.HOST}” “{TRIGGER.NAME}” “{TRIGGER.ID}” “{EVENT.ID}” “{EVENT.STATUS}”

  Do the same for Recovery if needed

  Reply
• Olivier says:

  18/06/2020 at 13:23

  Macro/Triggers fields : https://www.zabbix.com/documentation/4.0/fr/manual/appendix/macros/supported_by_location

  Reply
• Olivier says:

  26/06/2020 at 10:49

  Backup

  Reply
• Olivier says:

  26/06/2020 at 11:09

  The default user is “Admin” and the password is “zabbix”

  Reply
• OLIVIER COMBE says:

  23/07/2020 at 14:40

  UserParameter

  In the /etc/zabbix/zabbix_agentd.conf :

  UserParameter=myKey1.myKey2,echo "A"
  

  In the UI, create a new item with Key = myKey1.myKey2

  Reply
  • OLIVIER COMBE says:

    06/10/2020 at 09:43

    for root actions, zabbix user must be adder to sudoers :

    %zabbix ALL=(ALL) NOPASSWD:ALL
    

    And “requiretty” must be removed (error : sorry, you must have a tty to run sudo)

    #Defaults    requiretty
    

    Reply
    • OLIVIER COMBE says:

      09/03/2021 at 16:08

      ## Zabbix config
      Defaults:zabbix !requiretty
      %zabbix ALL=(ALL) NOPASSWD:ALL
      

      Reply
  • OLIVIER COMBE says:

    09/03/2021 at 16:09

    Timeout could be also increased (error : Timeout while executing a shell script

    # Timeout config
    Timeout=30
    

    Reply
• OLIVIER COMBE says:

  24/09/2020 at 16:09

  For Windows, download and unzip archive : https://www.zabbix.com/download

  Run as administrator :

  C:\...\bin\zabbix_agentd.exe --config C:\...\conf\zabbix_agentd.conf --install
  

  C:\...\bin\zabbix_agentd.exe --config C:\...\conf\zabbix_agentd.conf --start
  

  See also : https://www.tecmint.com/install-zabbix-agent-and-add-windows-host-to-zabbix-monioring/

  Reply
• OLIVIER COMBE says:

  13/11/2020 at 12:12

  Load a backup :
  From MySQL container :

  mysql -u ZABBIX_USER -p ZABBIX_DB_NAME < /var/lib/backup/backup/zabbix_cfg__20200626-0729_db-mysql-4.0.3.sql
  

  Reply
• OLIVIER COMBE says:

  24/11/2020 at 11:40

  Backup docker DB :
  Mount a shared drived into the container (for example into /var/lib/backup/)

  Download the backup script from : https://github.com/maxhq/zabbix-backup

  Create a shell script :

  LOG_FILE="${ROOT_DIR}/logs/zabbix_backup_`date +%Y-%m-%d`.log"
  
  ZABBIX_DB_CONTAINER=""
  ZABBIX_DB_USERNAME=""
  ZABBIX_DB_PASSWORD=""
  
  docker exec -i $ZABBIX_DB_CONTAINER bash -c "/var/lib/backup/zabbix-dump -u $ZABBIX_DB_USERNAME -p $ZABBIX_DB_PASSWORD -o /var/lib/backup/backup -r 10" 2>&1 | tee --append "${LOG_FILE}" ; test ${PIPESTATUS[0]} -eq 0
  

  Add a cron :

   
  0 20 * * * /path/to/backupZabbixDockerDatabase.sh
  

  Reply
• OLIVIER COMBE says:

  24/11/2020 at 11:45

  Docker compose :

  version: '2'
  
  services:
  
    server:
      image: zabbix/zabbix-server-mysql:alpine-4.4.0
      environment:
        DB_SERVER_HOST: mysql-server
        MYSQL_DATABASE: zabbix
        MYSQL_PASSWORD: beV2i4C4
        MYSQL_ROOT_PASSWORD: r44VygK9
        MYSQL_USER: zabbix
        ZBX_VALUECACHESIZE: 1000M
        ZBX_CACHESIZE: 1000M
      volumes:
        - /opt/app/zabbix/scripts:/usr/lib/zabbix/alertscripts
      links:
        - mysql:mysql-server
      ports:
        - 10051:10051/tcp
  
    nginx:
      image: zabbix/zabbix-web-nginx-mysql:alpine-4.4.0
      environment:
        DB_SERVER_HOST: mysql-server
        MYSQL_DATABASE: zabbix
        MYSQL_PASSWORD: beV2i4C4
        #MYSQL_ROOT_PASSWORD: r44VygK9
        MYSQL_USER: zabbix
        PHP_TZ: Europe/Brussels
      links:
        - server:zabbix-server
        - mysql:mysql-server
      ports:
        - 8888:80/tcp
  
    mysql:
      image: mysql:5.7
      environment:
        MYSQL_DATABASE: zabbix
        MYSQL_ROOT_PASSWORD: r44VygK9
        MYSQL_USER: zabbix
        MYSQL_PASSWORD: beV2i4C4
      ports:
        - 3306:3306/tcp
      volumes:
        - /opt/app/zabbix/mysql:/var/lib/mysql
        - /opt/app/zabbix/backup:/var/lib/backup
  
  

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• OLIVIER COMBE says:

  22/12/2020 at 16:28

  Error in the logs :

  cannot set resource limit: [13] Permission denied
  

  Short workaround, disable selinux (not recommended)

  setenforce 0
  

  See https://catonrug.blogspot.com/2018/02/cannot-set-resource-limit-13-permission-denied.html

  Reply
• OLIVIER COMBE says:

  19/02/2021 at 16:16

  For Ubuntu, the agent config must be updated with

  Server=0.0.0.0/0,10.2.2.197,::/0,<SERVER_IP>
  

  Reply
• OLIVIER COMBE says:

  22/12/2022 at 09:03

  Configure discovery rule & discovery action

  https://www.zabbix.com/documentation/current/en/manual/discovery/network_discovery/rule

  Reply