Ntop Community Edition Download !LINK!
Sonjia Smith
It took 2 or 3 hours. I think, the choice of my hardware in combination of the image and the source-Files of ntopng is not the best. If you have the possibility choose an other hardware in which repsoitories is the newest (4.2 or above) Version of ntopng. That will save time and many coffee.
To access the ntopng Web interface using a domain name rather than typing IP address and port number, we can set up a reverse proxy for ntopng with Nginx or Apache. This also allows you to enable HTTPS with certbot.
Which VPN Protocol is resistant to Deep Packet Inspection (DPI)? ntopng can identify WireGuard VPN, OpenVPN, IPSec VPN, and Cisco VPN traffic. Is it able to differentiate normal HTTPS traffic and OpenConnect VPN traffic? (OpenConnect VPN is an HTTPS-based VPN protocol.)
To block BitTorrent traffic, you need ntopng-edge (nedge) which is a Web-based edge traffic policer developed by the ntop team. It can throttle and block any network protocols that nDPI supports.
I need to be able to track client data usage between their VM and an S3 compatible object storage bucket (accessed via https). I've installed ntopng community edition on the VM and right now it's dumping all it's data into a MySQL database.
I've noticed that the overhead of ntopng is not inconsequential, and these are not resource rich VM's, so I'd like to lessen it's memory/resource footprint if I can. I'm ONLY interested in the connection described above, so is there a way to apply a filter to only track connections from a certain origin rather than tracking ALL traffic?
Administrators are well advised to monitor the availability and quality of their networks continuously. The open source ntopng tool has been tried and tested for years. In this article, I investigate how to commission the latest Enterprise version and explore its feature set.
Ntopng was originally developed by Luca Deri, a scientist at the University of Pisa, under the name ntop [1], which explains why the business still operates under the name "ntop di Deri Luca." The name ntop is derived from the Unix top program, which lets network administrators view system information related to CPU and memory usage and the currently running processes of a Unix system.
In this vein, ntopng is a network top program that lets admins display all the relevant parameters for the connected networks. Ntopng is a passive network monitoring tool that supports statistical evaluation of traffic data on the connected networks; it does not actively intervene in the network traffic (but see the "Layer 7 Manipulation" box). Ntopng is therefore ideally suited as a tool for administrators wanting to answer, among others, the following questions:
The ntopng Edge (nEdge) [2] version of ntopng actively manipulates network traffic. nEdge lets you analyze network traffic at the protocol level (Layer 7) and block or restrict application protocols for individual or all users (network application control). Therefore, you can block bandwidth-intensive applications such as Torrent and prevent data being uploaded to cloud applications such as Dropbox, Google Drive, and the like.
The Community edition already contains ntopng's most important features. Armed with the free version, you can analyze network traffic on up to 32 network interface cards in real time; identify application protocols such as BitTorrent, Facebook, Dropbox, and YouTube; and generate alerts (e.g., if a system is using too much bandwidth).
The commercial editions (see the "Versions and Licensing" box) offer five days of installation support, support for up to 128 network interface cards (Enterprise), and, above all, the possibility of permanently storing analysis data with the additional n2disk module, which is the only way to evaluate historical data. The ability to connect to third-party systems such as Nagios, Icinga, and Suricata or integrate with LDAP (for single sign-on authentication at the web interface) is reserved for the commercial versions. By the way, universities, educational and scientific research institutions, and nonprofit organizations can obtain licenses for all ntop products free of charge. Details of the requirements and registration can be found online [3]; also see the "Versions and Licensing" box.
Community, Professional, and Enterprise versions of ntopng are available. An overview of the functions included in the respective version can be found on the ntop website [4]. The Community edition of ntopng does not require a license; only the basic features are included in this version. Licenses for the Professional and Enterprise editions are available from the online store [5]. Licensing is per server; the license includes five days of installation support and updates for one year.
To give ntopng a wide view of network traffic, it makes sense to connect the system to the mirror port on the core switch by way of an (additional) network interface card. Otherwise, ntopng only sees the communication of its own computer and its communication partners.
Ntopng focuses on two important Linux distribution branches: Debian/Ubuntu and Red Hat/CentOS. The packages required for ntopng are easily installed after setting up the operating system with the distributions' built-in tools (apt/deb or yum/rpm). A preconfigured distribution or appliance is not available.
Ntopng is a web-based application for true network traffic flow monitoring that is available as open freeware. It's an improved kind of innovative Ntop that displays network use, statistics, and analytical data. It works with a variety of computer systems, including Windows, Linux, Mac OS, and BSD. Ntopng comes in professional and corporate editions with license restrictions, as well as a free open source community version. In this guide, I will show you how to install and configure the Ntopng community edition on Ubuntu 20.04.
To access the NtopNG interface open your web browser and type in the following URL: -ip-address:3000. Replace your-ip-address with the IP address of the system you installed ntopng on. It will open the login panel of Ntopng. The default username is 'admin' with password 'admin'.
A connection is established from the Checkmk server to the ntopng server.Here Checkmk communicates with ntopng via its REST API.The connection parameters are used to decide which data is fetched from ntopng.The assignment is made via the available user accounts of both systems.
Information from ntopng is displayed in the Checkmk user interface.This happens on the one hand in new views and dashboards in which the ntopng information is prepared for Checkmk users.On the other hand, ntopng data can be integrated into existing Checkmk views and dashboards.
To use the integration of ntopng in Checkmk, you need one of the commercial editions of Checkmk with the add-on for ntopng integration and an ntopng in a Professional or Enterprise version >= 5.6,with a REST API v2 through which Checkmk and ntopng communicate.
You will have obtained most of the requested parameter values by now and can therefore take them from the table above.We only need to take a closer look at one of the connection parameters: ntopng username to aquire data for.This determines who can see which ntopng data in Checkmk.The user accounts with which Checkmk authenticates itself with ntopng and with which Checkmk fetches data from ntopng are defined differently.We explain the choices and the resulting differences in fetching the data in the following two sections.
Note: The entries for the connection to ntopng are not checked for validity when saving.You will not receive error messages about invalid values until the display of ntopng information.With the first ntopng connection parameter Enable this ntopng instance you can deactivate the connection to ntopng, for instance if the ntopng server is temporarily unavailable.
To do this, select the value Use the Checkmk username as ntopng user name for the parameter ntopng username to aquire data for.Checkmk will then use the current Checkmk username and retrieve the data from ntopng under that name.
For data retrieval to work via this assignment, at least one user account with the same name must exist in both Checkmk and ntopng.No matter how you think about it, it will probably be necessary to change the users in Checkmk, ntopng or even in both systems.How to create or change a user in Checkmk is explained in the article on user administration.
After you have activated the changes, all Checkmk users will see the user interface changes for ntopngas described in the chapter on displaying the ntopng information, for example the extension of the Monitor menu.However the ntopng data will only be visible to those Checkmk users who have a user account on the ntopng counterpart.The other Checkmk users will be able to open the ntopng-specific pages, but will only receive blank pages or an error message that the login data is invalid.
Since the users are assigned different roles in both systems, you can control very precisely who is allowed to see what of ntopng in Checkmk, for example like this:You do not assign an ntopng user to a Checkmk Guest user who is not interested in network traffic, so the ntopng-specific extensions of the Checkmk interface are hidden for this user.Assign an ntopng Non Privileged User to a Checkmk Normal monitoring user and a network trainee.Assign an ntopng Administrator to a Checkmk Administrator and network expert.
In the ntopng Username field, enter the ntopng user name whose information is to be displayed to the current Checkmk user.If this field is left empty (which is the default), the ntopng-specific extensions of the Checkmk interface are hidden for the Checkmk user.Finally, activate the changes.
Once the requirements described in the chapter Connecting to ntopng have been met, you will now have access to the ntopng data in Checkmk.To do this, log in to Checkmk under a user account that is assigned to an ntopng user account.
The most noticeable change can be found in the Monitor menu, which contains the new Network statistics topic with entries for a view and several dashboards with ntopng data, which we will introduce in the next chapters.
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