Scout_Realtime - Monitor Server and Process Metrics in Linux

In the past, we’ve covered lots of command-line-based tools for monitoring Linux performance, such as top, htop, atop, glances, and more, and a number of web-based tools such as cockpit, pydash, linux-dash, just to mention but a few. You can also run glances in web server mode to monitor remote servers. But all that aside, we have discovered yet another simple server monitoring tool that we would like to share with you, called Scout_Realtime.

Scout_Realtime is a simple, easy-to-use web-based tool for monitoring Linux server metrics in real-time, in a top-like fashion. It shows you smooth-flowing charts about metrics gathered from the CPU, memory, disk, network, and processes (top 10), in real-time.

Real-Time Linux Server Process Monitoring

In this article, we will show you how to install the scout_realtime monitoring tool on Linux systems to monitor a remote server.

Installing Scout_Realtime Monitoring Tool in Linux

1. To install scout_realtime on your Linux server, you must have Ruby 1.9.3+ installed on your server using the following command.

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

2. Once you have installed Ruby on your Linux system, now you can install the scout_realtime package using the following command.

$ sudo gem install scout_realtime

3. After successfully installing the scout_realtime package, next, you need to start the scout_realtime daemon which will collect server metrics in real-time as shown.

$ scout_realtime

Start Scout Realtime on Server

4. Now that the scout_realtime daemon is running on your Linux server that you want to monitor remotely on port 5555. If you are running a firewall, you need to open port 5555 which scout_realtime listens on, in the firewall to allow requests to it.

---------- On Debian/Ubuntu ----------
$ sudo ufw allow 27017  
$sudo ufw reload 

---------- On RHEL/CentOS 6.x ----------
$ sudo iptables -A INPUT -p tcp --dport 5555 -j ACCEPT    
$ sudo service iptables restart

---------- On RHEL/CentOS 7.x ----------
$ sudo firewall-cmd --permanent --add-port=5555/tcp       
$ sudo firewall-cmd reload 

5. Now from any other machine, open a web browser and use the URL below to access the scout_realtime to monitor your remote Linux server performance.

http://localhost:5555 
OR
http://ip-address-or-domain.com:5555 

ScoutRealtime Linux Server Process Monitoring

6. By default, scout_realtime logs are written in .scout/scout_realtime.log on the system, which you can view using cat command.

$ cat .scout/scout_realtime.log

7. To stop the scout_realtime daemon, run the following command.

$ scout_realtime stop

8. To uninstall scout_realtime from the system, run the following command.

$ gem uninstall scout_realtime

For more information, check out the Scout_realtime Github repository.

It’s that simple! Scout_realtime is a simple yet useful tool for monitoring Linux server metrics in real-time in a top-like fashion. You can ask any questions or give us your feedback in the comments about this article.