---
sourceDocument: Australia Security Management
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/pt-BR/security-management

 Release :

    - australia

ft:locale :

    - pt-BR

ft:publication_title :

    - Australia Security Management

ft:clusterId :

    - security

bundleId :

    - security

workflow :

    - Technology


---

# Playbook for OSquery of External Address in /etc/hosts file

# Playbook for OSquery of External Address in /etc/hosts file {#ariaid-title1}

* Versão de lançamento: Australia
* 
* Atualizado 12 de mar. de 2026
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 min. de leitura

This playbook provides systematic remediation steps to investigate incidents that indicate that an internal hostname or domain has been assigned to an external IP address on the local DNS(/etc/hosts) of a Linux
server.
* **[Set up the OSquery of External Address in the /etc/hosts file playbook](https://servicenow-prod.fluidtopics.net/kdT5vsXYCoV3DmOh_2QaDw)**   
  Use the following steps to set up the OSquery of External Address in the /etc/hosts file playbook.
* **[Use the OSquery of External Address in the /etc/hosts file playbook](https://servicenow-prod.fluidtopics.net/FkGNRbR_RgggyaRtbxXU1Q)**   
  Use this playbook to investigate incidents that indicate that an internal hostname or domain has been assigned to an external IP address on the local DNS(/etc/hosts) of a Linux server. The following steps give you a walkthrough of the actions, tasks, and subflows that are available in the OSquery of external address in the /etc/hosts file playbook.