This page fills up quickly due to internet traffic and bot probes. All network alerts are recorded and displayed here. Scroll over the alert icon with the exclamation point in the top menu bar.
Click on Enable Alerts and choose which alerts you’d like to enable. Near the top of the web interface, scroll over Settings and select Preferences. It is meant to run in addition to an existing setup. Ntopng does not replace core security features such as a properly configured firewall. Give your pool a descriptive name and save. Select Manage Pools.Ĭlick on the + icon on the far right of the screen. In the menu directly below the ntop logo, select the icon that resembles a group of 3 people. In the Interfaces dropdown menu, select your main connection interface. This example uses OpenVPN to group connected devices together (you do not need to be running OpenVPN). If you want to group devices over the same network or host a home media server, you can use a host pool. You’ll then be prompted to set a new password. If you did not enable autologin, enter username:admin and password:admin in the pop-up window. If you enabled autologin, you’ll be routed to the Welcome page. Navigate to 192.0.2.0:3005 in a web browser, replacing 192.0.2.0 with your domain or IP. Iptables iptables -A INPUT -p tcp -match multiport -dports 3005:3006 -j ACCEPT Ntopng requires ports 30 opened in your firewall. Logged traffic can be shared with other servicesįorces ntopng to allow users to remain logged into the web interface without being deactivated for inactivity.ġ to disable password authentication, 0 to require authentication. Ntopng can be used as a forward service or as a background daemon. While port 3005 is the default, you may define any. HTTP address and port used to connect to the admin interface. The network interface ntopng will monitor. Leaving this flag out of the configuration file will default to nobody. All flags requiring input must be followed by an = and a value.ĭesignates the user ntopng will run under. The option flags commented with # optional are not mandatory. Run man ntopng from the terminal to see all available configuration parameters. If needed, replace eth0 with your primary network interface. Replace 192.0.2.0 with your Linode’s domain or public IP address. If you specify options in both the command line and the file, ntopng will prioritize settings in the configuration file.Ĭreate a configuration file for ntopng using the example below. Verify that TCP segmentation is disabled: ethtool -k eth0 | grep segmentationĮach line of the tcp-segmentation-offload section should be set to off as shown below: tcp-segmentation-offload: offĬonfiguration options can be defined in a file or set from the command line. Replace eth0 with your primary connection interface: ethtool -K eth0 gro off gso off tso off Set permissions for user ntopng and installation files/directories as shown: mkdir /var/tmp/ntopngĬhown -R ntopng:ntopng /usr/share/ntopng /var/tmp/ntopngįind /usr/share/ntopng -type d -print0 | xargs -0 chmod 744įind /usr/share/ntopng -type f -print0 | xargs -0 chmod 755 The easiest solution is to create a new user for ntop:Īdd user ntopng: useradd -r -s /bin/false ntopng However, ntopng installs files in directories which the user nobody may not have access to. This is a good choice for daemons requiring minimal access to the system. Ntopng runs as the user nobody by default. Nbox brings requires a large amount of dependencies but is not necessary to use ntopng so you can exclude it. The install command provided also installs nbox, a netflow application. rpm file and install it into your system. We recommend you choose the stable build over nightly.įollow the instructions to download the. Go to and click the link for the operating system you want to install ntopng on. Update your system and install ethtool: sudo apt update & sudo apt upgrade You will need root access to your Linode, or a user account with sudo privilege. Work with the user interface and view statistics, as well as make your own configurations.Create Host Pools to group connected devices together based on your own criteria.Monitor and analyze traffic from your Linode, including security threats.After you complete the tutorial and have the network monitor deployed, you’ll be able to: The tutorial will also cover configuration examples and suggestions for the web administration interface. In this tutorial you will configure and install
Overview of ntopng Network Monitoring System
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