manual suricata (#1509)

Add suricata manual for vyos 1.5

docs/configuration/service/index.rst

@@ -29,4 +29,4 @@ Service
    ssh
    tftp-server
    webproxy
-   
+   suricata   

docs/configuration/service/suricata.rst

@@ -0,0 +1,101 @@
+.. _suricata:
+
+########
+suricata
+########
+
+Suricata and VyOS are powerful tools for ensuring network security and traffic management. 
+Suricata is an open-source intrusion detection and prevention system (IDS/IPS) that analyzes network packets in real-time. 
+
+
+Suricata Features
+=================
+
+Intrusion Detection (IDS): Analyzes network traffic and detects suspicious activities, attacks, and malicious traffic.
+Intrusion Prevention (IPS): Blocks or modifies suspicious traffic in real-time, preventing attacks before they penetrate the network.
+Network Security Monitoring (NSM): Collects and analyzes network data to detect anomalies and identify threats.
+Multi-Protocol Support: Suricata supports analysis of various network protocols such as HTTP, FTP, SMB, and many others.
+In configuration mode, the commands are as follows:
+
+.. code-block:: none
+
+   vyos@vyos# set service suricata
+   Possible completions:
+   +> address-group        Address group name
+   +  interface            Interface to use
+    > log                  Suricata log outputs
+   +> port-group           Port group name
+
+These commands create a flexible interface for configuring the Suricata service, allowing users to specify addresses, ports, 
+and logging parameters.
+
+After completing the service configuration in configuration mode, the main configuration file suricata.yaml is created, 
+into which all specified parameters are added. Then, to ensure proper operation, the command :opcmd:`update suricata` must be run 
+from operational mode, waiting for Suricata to update all its rules, which are used for analyzing traffic for threats and attacks.
+
+
+Configuration
+=============
+
+.. cfgcmd::  set service suricata address-group <text> <address | group>
+
+   Address groups are useful when you need to create rules that apply to specific IP addresses. 
+   For example, if you want to create a rule that monitors traffic going to or from a specific IP address, 
+   you can use the group name instead of the actual IP address. This simplifies rule management and makes the 
+   configuration more flexible.
+
+   * ``address`` IP address or subnet.
+
+   * ``group``  Address group.
+
+.. cfgcmd:: set service suricata port-group <text> <address | group>
+
+   Port groups are useful when you need to create rules that apply to specific ports. 
+   For example, if you want to create a rule that monitors traffic directed to a specific port or group of ports, 
+   you can use the group name instead of the actual port. This also simplifies rule management and makes 
+   the configuration more flexible.
+
+   * ``port``  Port number.
+
+   * ``group``  Port group.
+
+.. cfgcmd::  set service suricata interface <text>
+
+   The interface that will be monitored by the Suricata service.
+
+
+.. cfgcmd:: set service suricata log eve <filename | filetype | type>
+
+   Configuration of the logging file.
+
+   * ``filename``  Log file (default: eve.json).
+
+   * ``filetype``  EVE logging destination (default: regular).
+   
+   * ``type``  Log types.
+
+Operation Mode
+==============
+
+.. cfgcmd::  update suricata
+
+   Checks for the existence of the Suricata configuration file, updates the service, 
+   and then restarts it. If the configuration file is not found, a message indicates that Suricata is not configured.
+
+
+.. cfgcmd:: restart suricata
+
+   Restarts the service. It checks if the Suricata service is active before attempting to restart it. 
+   If it is not active, a message indicates that the service is not configured. This command is used when adding new rules manually.
+
+Conclusion
+==============
+
+Using address and port groups allows you to make your Suricata configuration more flexible and manageable. 
+Instead of specifying IP addresses and ports directly in each rule, you can define them once in the vars section and then 
+reference them by group names. This is especially useful in large networks and complex configurations where multiple IP addresses 
+and ports need to be monitored.
+   
+   
+   
+