Steps to install OSSEC in host:
Pre-Requesites

OSSEC requires gcc, libc, apache and PHP.
	1.sudo apt-get update -y 
	2.sudo apt-get upgrade -y
	3.apt-get install build-essential gcc make apache2 libapache2-mod-php7.0 php7.0 php7.0-cli php7.0-common apache2-utils unzip wget     		  sendmail inotify-tools -y
To INSTALL 
	1.wget https://github.com/ossec/ossec-hids/archive/2.9.0.tar.gz
	2.tar -xvzf 2.9.0.tar.gz
	3.cd ossec-hids-2.9.0
	4.sh install.sh
	5.(en/br/cn/de/el/es/fr/hu/it/jp/nl/pl/ru/sr/tr) [en]:en - To Select Language 
	6.OSSEC HIDS v2.9.0 Installation Script - http://www.ossec.net

	You are about to start the installation process of the OSSEC HIDS. 
	You must have a C compiler pre-installed in your system.

	- System: Linux Node1 4.4.0-45-generic 
	- User: root 
	- Host: localhost
	 
	-- Press ENTER to continue or Ctrl-C to abort. --
	
	7. What kind of installation do you want (server, agent, local, hybrid or help)? local
	
	8 - Setting up the installation environment.
	  - Choose where to install the OSSEC HIDS [/var/ossec]:
	  
	  - Installation will be made at /var/ossec .
  
	9 - Configuring the OSSEC HIDS.
  
	  - Do you want e-mail notification? (y/n) [y]: y
	  
       10 - - What's your e-mail address? root@localhost
  
	     - We found your SMTP server as: 127.0.0.1 
	    - Do you want to use it? (y/n) [y]: y
	    
       11 Do you want to run the integrity check daemon? (y/n) [y]:
           - Running syscheck (integrity check daemon).
           
       12 - Do you want to run the rootkit detection engine? (y/n) [y]: 
         - Running rootcheck (rootkit detection).
         
       13 - - Do you want to enable active response? (y/n) [y]:
    	   - Active response enabled.
    	   
    	14 - Default white list for the active response: 
            - 192.168.15.1
  
           - Do you want to add more IPs to the white list? (y/n)? [n]: n
           
        15 - Do you want to enable remote syslog (port 514 udp)? (y/n) [y]:
           - Remote syslog enabled.
           
           - If you want to monitor any other file, just change the 
	     ossec.conf and add a new localfile entry. 
	     Any questions about the configuration can be answered 
	     by visiting us online at http://www.ossec.net .
	  
	    --- Press ENTER to continue ---
	    
	 16     - System is Debian (Ubuntu or derivative). 
		- Init script modified to start OSSEC HIDS during boot.

		- Configuration finished properly. 
		- To start OSSEC HIDS: 
		 /var/ossec/bin/ossec-control start

		- To stop OSSEC HIDS: 
		 /var/ossec/bin/ossec-control stop

		- The configuration can be viewed or modified at /var/ossec/etc/ossec.conf

		Thanks for using the OSSEC HIDS. 
		If you have any question, suggestion or if you find any bug, 
		contact us at [email protected] or using our public maillist at 
		[email protected] 
		( http://www.ossec.net/main/support/ ).

		More information can be found at http://www.ossec.net

		--- Press ENTER to finish (maybe more information below). --- 
		- In order to connect agent and server, you need to add each agent to the server. 
		Run the 'manage_agents' to add or remove them:
		
	  17 	/var/ossec/bin/ossec-control start
	
	  18	Starting OSSEC HIDS v2.9 (by Trend Micro Inc.)... 
		Started ossec-maild... 
		Started ossec-execd... 
		Started ossec-analysisd... 
		Started ossec-logcollector... 
		Started ossec-syscheckd... 
		Started ossec-monitord... 
		Completed.
		
steps to Install XRPL
 1.Pre-Requesites - Python3.8, pip3 
 2.pip install xrpl-py
 
 
github link to download ossec  - https://github.com/ossec/ossec-hids

github link to downlaod xrpl -  https://github.com/XRPLF/rippled