Previously, we’ve explored numerous command-line tools for Linux performance monitoring, including top, htop, atop, glances, and others, as well as web-based solutions like cockpit, pydash, and linux-dash. Additionally, glances can be used in web server mode for remote monitoring. However, today we bring you another lightweight and effective server monitoring utility known as Scout_Realtime.

Scout_Realtime is a straightforward, web-based utility that enables real-time monitoring of Linux server performance metrics in a manner similar to the top command. It presents real-time animated charts for metrics such as CPU usage, memory consumption, disk activity, network traffic, and the top 10 processes.

In this guide, we will walk you through the steps to install the scout_realtime monitoring tool on Linux systems for remote server observation.

How to Install Scout_Realtime on Linux

1. To begin the installation of scout_realtime, your Linux server must have Ruby 1.9.3 or newer installed. Use the following commands depending on your distribution.

<code>$ sudo apt-get install rubygems     [On <strong>Debian/Ubuntu</strong>]
$ sudo yum -y install rubygems-devel    [On <strong>RHEL/CentOS</strong>]
$ sudo dnf -y install rubygems-devel    [On <strong>Fedora 22 </strong>]</code>

2. Once Ruby is installed, proceed to install the scout_realtime Ruby gem with the following command.

<code>$ sudo gem install scout_realtime</code>

3. After the installation completes, launch the scout_realtime service to begin collecting real-time system metrics as shown below.

<code>$ scout_realtime</code>

4. The scout_realtime service is now active on your server and listens on port 5555. If your system uses a firewall, ensure that port 5555 is open to allow access.

<code><strong>---------- On Debian/Ubuntu ----------</strong>
$ sudo ufw allow 27017  
$ sudo ufw reload 
<p><strong>---------- On RHEL/CentOS 6.x ----------</strong>
$ sudo iptables -A INPUT -p tcp --dport 5555 -j ACCEPT<br>
$ sudo service iptables restart</p>
<p><strong>---------- On RHEL/CentOS 7.x ----------</strong>
$ sudo firewall-cmd --permanent --add-port=5555/tcp<br>
$ sudo firewall-cmd reload </p></code>

5. From another system, open a web browser and navigate to the following URL to view your server’s performance metrics via scout_realtime.

<code><a href="http://www.miracleart.cn/link/ed54e9a013d6bbc378503bdb4ca43c27">http://www.miracleart.cn/link/ed54e9a013d6bbc378503bdb4ca43c27</a> 
OR
<a href="http://www.miracleart.cn/link/68cc84f0834098558e316e76dc5d8c7b">http://www.miracleart.cn/link/68cc84f0834098558e316e76dc5d8c7b</a> </code>

6. By default, logs for scout_realtime are stored in .scout/scout_realtime.log. You can review them using the cat command.

<code>$ cat .scout/scout_realtime.log</code>

7. To stop the scout_realtime service, use the following command.

<code>$ scout_realtime stop</code>

8. If you wish to remove scout_realtime from your system, execute this command.

<code>$ gem uninstall scout_realtime</code>

For further details, visit the Scout_realtime GitHub repository.

That’s all! Scout_realtime offers a simple yet effective way to monitor your Linux server in real-time using a top-style interface. Feel free to share your thoughts or questions in the comments section below.

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