Add secops guides for network and hosts (#249)

* New starter docs for secops

* Set up secops guides for network and hosts

* Add new files

* Remove DS_Store file

Author: karenzone

docs/en/secops/images/secops-architecture.png

@@ -0,0 +1,14 @@
+[[hosts-ui-overview]]
+[role="xpack"]
+== Hosts UI
+
+beta[]
+
+After you have security monitoring <<install-hosts-monitoring,up and
+running>> and data is streaming to {es}, use the Hosts UI in {kib} to monitor
+and identify security problems in real time.
+
+For more information about working with the Hosts UI, see the
+{kib} documentation.
+
+

docs/en/secops/index.asciidoc

@@ -0,0 +1,17 @@
+:doctype: book
+//:hosts-soln-cap: Hosts monitoring
+//:hosts-soln: hosts monitoring
+//:hosts-ui: Hosts UI
+
+= Hosts Monitoring Guide
+
+//include::{asciidoc-dir}/../../shared/versions.asciidoc[]
+
+include::{asciidoc-dir}/../../shared/attributes.asciidoc[]
+
+include::overview.asciidoc[]
+
+include::installation.asciidoc[]
+
+include::hosts-ui.asciidoc[]
+

docs/en/secops/overview.asciidoc

@@ -1,4 +1,4 @@
-[[install-sec-monitoring]]
+[[install-hosts-monitoring]]
 [role="xpack"]
 == Get up and running
 
@@ -27,7 +27,7 @@ such as the index pattern used to query the data, and the timestamp field used
 for sorting. For more information, see {kib}.
 
 [float]
-[[install-beats-for-sec]]
+[[install-beats-for-host-sec]]
 === Install {beats} shippers
 
 To populate the security UI with metrics and

docs/en/secops/sec-ui.asciidoc

@@ -0,0 +1,34 @@
+[[hosts-monitoring-overview]]
+[role="xpack"]
+== Overview
+
+beta[]
+
+Host monitoring gives you a comprehensive view into your security operations.
+
+The UI in {kib} brings together data from a variety of sources, making it easier
+for you to identify and resolve security issues.
+
+[float]
+[[hosts-components]]
+=== Hosts monitoring components
+
+Security monitoring requires the following {stack} components.
+
+image::images/hosts-security-architecture.png[]
+
+*https://www.elastic.co/products/beats[{beats}]* are open source data
+shippers that you install as agents on your servers to send operational data to
+{es}.
+
+*https://www.elastic.co/products/elasticsearch[{es}]* is a real-time,
+distributed storage, search, and analytics engine. {es} excels is indexing
+streams of semi-structured data, such as logs or metrics.
+
+*https://www.elastic.co/products/kibana[{kib}]* is an open source analytics and
+visualization platform designed to work with {es}. You use {kib} to search,
+view, and interact with data stored in {es} indices. You can easily perform
+advanced data analysis and visualize your data in a variety of charts, tables,
+and maps.
+
+{kib} Hosts UI provides a dedicated user interface for visualizing host security.