Recommended programs to manage the Wi-Fi networkS on Windows.

The purpose of this type of program is to visualize all the Wi-Fi networks around us. Thanks to them, we will be able to monitor all nearby wireless networks. Additionally, we will be able to collect specific data. For example, what Wi-Fi networks there are, on what Wi-Fi channels they are broadcasting, the type of security they use and if we have interference with neighboring networks. We can even see how many clients we have connected to the different wireless networks around us. Here, we will detail the best programs to manage Wi-Fi network on Windows.

Acrylic WiFi Home

Acrylic WiFi Home is one of the best programs we can use to visualize Wi-Fi networks. We base this statement on the fact that it has a fully functional free version. This tool is compatible with the latest Microsoft Windows operating systems, including Windows 10 and Windows 11.

The free version of the program is called Acrylic Wi-Fi Home. The tool offers a Wi-Fi scanner that displays Wi-Fi information in real time. It also scores our network, identifies channel problems, checks coverage and improves the performance of our home Wi-Fi network. Among its main functions, we can find:

• Viewer of Wi-Fi networks in which Wi-Fi 6 networks with the 802.11ax standard are distinguished.
• View of Wi-Fi channels in 2.4GHz and 5GHz.
• Analyzes the distribution of networks by Wi-Fi channels.
• Provides graphs of signal level and power of our wireless networks.
• Visualize the access points around you as well as devices such as smartphones, laptops and more.
• We will get information about nearby APs regarding their signal strength, channels, encryption and more.

Acrylic Wi-Fi Home is available here. However, a professional version is available for just under $22. If you are going to use the tool a lot, then this is the version for you because of the large number of features it offers.

WiFi Analyzer

WiFi Analyzer is a program that has been developed for home users. For this reason, we find an ideal tool for users with little experience in scanning Wi-Fi networks. This program is responsible for analyzing our network and convert them into data visually easy to understand which also includes graphs. For example, it can suggest which channel we should use to reduce interference. Thanks to the way it works, we can find the best channel and detailed information about our router.

This tool simply offers an analyzer for wireless networks. In its basic version, it comes free of advertising, and we have everything we need to analyze Wi-Fi networks. On the other hand, it should be noted that it has a Pro version with more features. The program requires at least Windows 10 and can be downloaded from the Microsoft Store from here.

Vistumbler

Another program for managing Wi-Fi networks is Vistumbler. In effect, we could describe it as a wireless network scanner. Moreover, it is a free open-source program for Windows. The minimum we need is Windows Vista with a Wi-Fi adapter, so we can use it also on older computers. The objective of this program is to map and visualize the routers and access points that we have neared us.

Thanks to Vistumbler, we will know important information such as network status, SSID, MAC address, signal strength, channel number and more. It also has a GPS support feature that allows it to integrate with Google Earth to display Wi-Fi networks. It does this in two ways:

• With the export of GPS locations of access points to a Google Earth KML file.
• Allowing live tracking from Google Earth thanks to Auto KML. This way it automatically displays the access points and routers in Google Earth.

In this case, it should be noted that it is not an easy program to use due to its interface and complexity of options.

inSSIDer

Thanks to the inSSIDer tool, we will be able to know exactly how our network is configured. We will also find out how neighboring Wi-Fi networks are affecting ours. Additionally, it offers suggestions for a faster and more secure wireless network. This program shows us the essential details about our Wi-Fi connection, including channel, channel width, signal strength. We will also be able to know the Wi-Fi standards supported, the maximum connection speed and its encryption.

inSSIDer is a very fascinating tool, but it is more oriented towards the professional field than for home users. It also uses graphics that show the devices connected to the 2.4GHz and 5GHz band. Once the networks have been analyzed, it will provide us with a score for our connection. The result will be that the higher the score, the more reliable it is. inSSIDer can be downloaded from the developer’s website metageek from this link.

Free WiFi Analyzer Tool

Free WiFi Analyzer Tool turns your Windows 10 computer into an analyzer for your wireless network. Regarding viewing, it allows 3D and 2D visualization in some of its sections. It also allows managing Wi-Fi networks, discovering any Wi-Fi signal around us. Thus, we will be able to make a classification of Wi-Fi filtering, sorting and grouping the available networks in addition to being able to switch between different networks instantly.

It also provides detailed information on each Wi-Fi access point. In addition, it can find the least used channels so that we can assign them to our router. It also allows us to control our network traffic and offers system notifications when a connection or disconnection occurs. As for the interface, we can choose between a white or black theme. This program is paid, but occasionally, it is offered for free.

The post Best programs to view all Wi-Fi networks information on Windows appeared first on Linux Windows and android Tutorials.

What is vnStat?

The best definition of Vnstat can be found on the project’s own website:

vnStat is a console-based network traffic monitor for Linux and BSD that keeps a log of network traffic for the selected interface(s). It uses the network interface statistics provided by the kernel as an information source. This means that vnStat won’t actually be sniffing any traffic and also ensures light use of system resources regardless of network traffic rate.

Therefore this tool is quite well known within the community and among sysadmins. It is quite simple to use and as you will see below it is easy to install.

Install vnStat on Debian 11 / 10

One of the fastest and most immediate ways to install vnStat on Debian 11 / 10 is to install it from the official repositories.

Although this is not the only way to get the program, it is the easiest method for newbies.

So, open a terminal or from an SSH session, install the security patches in the distribution:

sudo apt update
sudo apt upgrade

Next, you can install the vnStat package as follows:

sudo apt install vnstat

After it is installed, start the application service.

sudo systemctl start vnstat

This will complete the installation and you will be able to use it.

Install the latest version of vnStat on Debian 11 / 10

The previous method has a big problem and it is that the version that appears in the official repositories of Debian 11 / 10, is very outdated. So it is advisable to always install the latest version following these steps that I will describe.

First, install the packages needed to do the compilation, as well as some dependencies:

sudo apt install build-essential gcc make libsqlite3-dev

Then download the latest stable version, which at the time of writing this post, is 2.8.

wget https://humdi.net/vnstat/vnstat-2.8.tar.gz

Decompress the downloaded file

tar -xvzf vnstat-2.8.tar.gz

As a result of executing the above command, a folder called vnstat-2.8 will be generated which you will need to access and from there configure the package for compilation:

cd vnstat-2.8
./configure --prefix=/usr --sysconfdir=/etc

Now, compile the package and install it with this pair of commands:

sudo make
sudo make install

If everything went well, you will be able to run the vnstat command and display, for example, the installed version:

vnstat -v

Output:

vnStat 2.8 by Teemu Toivola <tst at iki dot fi>

Using the vnStat command

Before using the tool it is necessary to start the vnStat service. As we have installed it manually, there is no service installed so we have to create it.

Fortunately, to create it we will use the example file that comes with the code we have just compiled.

sudo cp -v examples/systemd/vnstat.service /etc/systemd/system/

Refresh the list of services

sudo systemctl daemon-reload

And now yes, enable it so it can start with the system and start the service

sudo systemctl enable vnstat
sudo systemctl start vnstat

And check the status of the service

sudo systemctl status vnstat
● vnstat.service - vnStat network traffic monitor
     Loaded: loaded (/etc/systemd/system/vnstat.service; enabled; vendor preset: enabled)
     Active: active (running) since Sat 2021-10-02 18:24:27 CEST; 11s ago
       Docs: man:vnstatd(8)
             man:vnstat(1)
             man:vnstat.conf(5)
   Main PID: 5939 (vnstatd)
      Tasks: 1 (limit: 2276)
     Memory: 612.0K
        CPU: 20ms
     CGroup: /system.slice/vnstat.service
             └─5939 /usr/sbin/vnstatd -n

Oct 02 18:24:27 osradar systemd[1]: Started vnStat network traffic monitor.
Oct 02 18:24:27 osradar vnstatd[5939]: Info: vnStat daemon 2.8 started. (pid:5939 uid:0 gid:0 64-bit)
Oct 02 18:24:27 osradar vnstatd[5939]: Info: Monitoring (1): eth0 (1000 Mbit)

After waiting a few minutes, you can start using it.

vnstat

By default, it takes the active interface, but you can change it:

vnstat -i [interface]

When an interface is monitored, a new database with logs is created. You can delete it and reset the statistics.

sudo vnstat -i [interface] --remove --force

In this case, you have to specify the interface to monitor.

Enjoy it.

Conclusion

So now you know how to install and use vnStat on Debian 11 / 10 This command although simple allows you to find answers to the operation of a network interface and to know if the behavior is as expected…

The post Install and use vnStat on Debian 11 / 10 appeared first on Linux Windows and android Tutorials.

How to see the internet speed from the task manager in Windows 10

The first thing we will do is use our own Windows tool to monitor the speed of the Internet. To do this we will enter the Task Manager. With this in mind press the combination Ctrl+Shift+Esc. Once there click on the Performance tab. Then scroll down to the bottom and click on the device connected to the network. In this example, the Wi-Fi device.

Checking the internet speed from the task manager

With the previous method we can check the internet speed from Windows. However, you always have to open the task manager. On the other hand, to have a persistent notification in the taskbar will be necessary to use a third party application. Don’t worry, it’s a free application called NetSpeedMonitor that can be downloaded from here. When you start installing it, you will receive this warning screen about the incompatibility of the program. That is, Windows 10 is not supported by the app.

As it is not supported, the installation is aborted. But don’t worry, let’s see how to solve this problem. As it is not supported, the installation is aborted. But don’t worry, let’s see how to solve this problem. The first thing you have to do is right-click on the file and enter the properties.

Then click on the Compatibility tab. Now check the box Run this program in compatibility mode for: Previous versions of Windows.

Back to the installer, you can run it without any problem. Please continue the installation like any other Windows app.

Running the monitor

Once the installation is finished, please press this address in the file browser:

C:\Program Files\NetSpeedMonitor

Once there, run nsmc.exe

Now you must confirm that NetSpeedMonitor will be added to the taskbar.

Next, you must configure the program’s interface. That is, the language, the network device and the traffic logging. Please press Save to continue.

You will immediately see in the status bar the speed of the internet. In addition, when you move the mouse pointer, the graphic information is displayed.

By right-clicking you can enter the program configuration.

From there you can configure many aspects. For example, the Bitrate, and the network interface entered

The program has other interesting functions such as displaying the active protocol connections in real time on the system. It also shows daily and monthly statistics of the connection.

This way we have seen how to check the internet speed in the Windows 10 taskbar. From now on you will have this information immediately. All right, that’s it for now. Please remember to visit our Windows section for updates. Bye!

The post How to check internet speed in Windows 10 taskbar appeared first on Linux Windows and android Tutorials.

Removing network credentials in Windows 10

In the first place, it is advisable to make a backup of the credentials before removing them. Then, it is necessary to enter the Control Panel looking for it in the search bar.

Then click on the view menu. Once there, select see small icons.

Now click on Web Credentials.

Then click on WIndows Credentials. A list will be displayed immediately. Please click on Generic Credentials.

Then when you click on any credential you will see all the information. To remove it, just click on Remove.

Then the system will display a warning message. Please press Yes to complete the process.

With this process it is possible to remove the network credentials in Windows 10.

Conclusion

Security is an essential aspect at any level. With the procedure described here, we have increased security in Windows 10. By removing the network credentials, it is possible to prevent unauthorized access. In addition, it is also possible to edit these items. From now on, the user will have more control over the credentials. Consequently, the privacy of the system is increased. Okay, that’s it for now. Before I say goodbye I invite you to see our post about creating invisible folders in Windows 10. Bye!

The post How to remove Windows 10 network credentials appeared first on Linux Windows and android Tutorials.

A Firewall is a system that allows protecting a computer or a network of the intrusions that come from the Internet. A firewall behaves as a barrier between the Internet or other public networks and our computer. In the firewall, the incoming and outgoing connections are determined by established rules.

For this reason, it is convenient to take some time to adjust the behavior of the Firewall in the system. Today I will teach you how to configure a firewall in Ubuntu 20.04 / Debian 10.

Configure the Firewall in Ubuntu 20.04 / Debian 10

1.-Upgrade the system

Upgrading the system is always a vital task to perform these types of installations and configurations because doing so provides us with the latest security patches. In short, you’ll have a more secure system. To do this, open a terminal and write:

:~$ sudo apt update && sudo apt upgrade

As a result of updating the system, you will be able to work with the firewall with the certainty of having more updated and more stable packages.

2. Working with UFW the Firewall on Ubuntu 20.04 / Debian 10

By default, Ubuntu has a Firewall installed, but not configured. In other words, it’s almost like not having it. So you have to get to work on it.

First of all, you must enable the service. Without it, the firewall will not run.

:~$ sudo systemctl enable ufw
:~$ sudo systemctl start ufw

Now, it’s a good idea to see ufw’s default rules for the system. In this case, run:

:~$ sudo ufw show raw

If you plan to use a server, then it’s a good idea to allow connections from ssh.

:~$ sudo ufw allow ssh

In effect, the above command, tells the Firewall to allow input and output connections to ssh.

In case you want to “open” a port to be used by another application, you must run:

:~$ sudo ufw allow 321/tcp

Don’t forget to replace 321 with the port you want. If the application uses TCP or UDP, you must change as the case may be.

You can open as many ports as you need. However, these three are basic to working with the computer:

:~$ sudo ufw allow 80/tcp 
:~$ sudo ufw allow 443/tcp
:~$ sudo ufw allow 21/tcp

80/TCP: Used for HTTP
443/TCP: Used for HTTPS
21/TCP: Used for FTP

You can even make a rule to allow or deny connections from any IP address.

:~$ sudo ufw allow from IP

With this, you authorize that the applications that come from that IP the firewall will accept them. If the IP address cannot be located, you will see an error like this:

If you are sorry to allow connections to that IP, you can revoke the rule:

:~$ sudo ufw deny IP

Remember to replace “IP” with the corresponding IP address.

However, imagine you’re starting to build a network and you don’t know who to trust, so you can deny connections from all computers.

:~$ sudo ufw deafult deny incoming

It is also possible to list all the options that the firewall has. Show them with the following command:

:~$ sudo ufw --help

As can be seen, manipulating ufw from the terminal is very simple.

3. GUFW. A graphical program to configure the firewall in Ubuntu 20.04 / Debian 10

As can be seen, manipulating ufw from the terminal is very simple, but if you don’t feel comfortable using CLI, then it is possible to use a GUI for it.

With GUFW, you can configure a firewall on Ubuntu easily. Also, you can apply the same options, but with a convenient graphical management interface. To install it:

:~$ sudo apt install gufw

When you run it, you’ll see a very simple interface like this:

If you click on “Rules” and then on the “+” button you can add the rules we have done before per terminal. Remember to first enable the GUFW.

You can also check the logs that are generated.

As you can be seen, configure a firewall in Ubuntu is simple and provides us with the extra security needed for an operating system. Of course, if we speak at the enterprise level, there are even more customizable and payment solutions to further protect the security of businesses.

Now it’s up to you, tell us about your experience with ufw?

Conclusion

Computer security is not something to be taken lightly, which is why knowing how to configure a firewall is always a good idea. Even in operating systems as safe as Linux or BSD.

Now, with this post, you have the basic tools to configure a Firewall in a fast and easy way and have a more secure system.

Please share this article on your social networks and join our Telegram Channel.

The post How to Configure a Firewall in Ubuntu 20.04 / Debian 10? appeared first on Linux Windows and android Tutorials.

A Static IP address

An IP address is an identifier held by each device that connects to the Internet or a computer network. In the case of the Internet, it must be unique to avoid connection conflicts.

On the one hand, there are dynamic IP addresses that change their value from time to time. Normally, these addresses are assigned by a DCHP server. The sysadmin does not have to worry about the assigned address as they are renewed from time to time.

On the other hand, we have static or fixed IP addresses, which unlike dynamical ones, do not change over time. In this case, it must be assigned and configured manually in the system.

Each of them has its own advantages, however, for internal networks, it is convenient to have equipment with static IP addresses. This facilitates the administration and routing of packets within the network. It is also easier to maintain the network.

So, let us work!

How to set up a static IP address on Ubuntu 20.04?

Before starting the work, it is necessary to know which is the network interface to which we want to assign the static IP address. To do this, execute the following command:

:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:80:31:48 brd ff:ff:ff:ff:ff:ff
    inet 192.168.250.8/16 brd 192.168.255.255 scope global dynamic enp0s3
       valid_lft 86204sec preferred_lft 86204sec
    inet6 fdd4:a148:ea1:7a00:a00:27ff:fe80:3148/64 scope global dynamic mngtmpaddr noprefixroute 
       valid_lft 7006sec preferred_lft 3406sec
    inet6 fe80::a00:27ff:fe80:3148/64 scope link 
       valid_lft forever preferred_lft forever

As you can see in the image, I only have a network interface called enp0s3 whose IP address is 192.168.250.8 but it was assigned with DHCP. So I’m going to assign it the static IP address 192.168.250.20

In Ubuntu the network configuration is done by netplan where the configurations are written in yml format.

So, before modifying the configuration file, it is convenient to make a backup of this file to prevent problems.

:~$ sudo cp /etc/netplan/00-installer-config.yaml /etc/netplan/00-installer-config.yaml.bak

And now you can modify the file with the help of nano.

:~$ sudo nano /etc/netplan/00-installer-config.yaml

You will see the following content:

network:
  ethernets:
    enp0s3:
      dhcp4: true
  version: 2

Then modify it to look like this:

dhcp4: no
      addresses:
        - 192.168.121.199/24
      gateway4: 192.168.121.1
      nameservers:
          addresses: [8.8.8.8, 1.1.1.1]

I think the options are very easy to understand but I will explain it to you anyway:

• dhcp4: it is not so that the interface does not use DHCP and only uses the IP address we set.
• addresses: The IP address that we are going to define.
• gateway4: The gateway of the network
• nameservers: the DNS servers that the computer will use.

Then save the changes and close the file. Remember that the file is in yml format so it respects the rules and syntax so it does not give any error.

To apply the changes, execute the following command:

:~$ sudo netplan apply

And check the changes with the following command:

:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:80:31:48 brd ff:ff:ff:ff:ff:ff
    inet 192.168.250.20/16 brd 192.168.255.255 scope global enp0s3
       valid_lft forever preferred_lft forever
    inet6 fdd4:a148:ea1:7a00:a00:27ff:fe80:3148/64 scope global dynamic mngtmpaddr noprefixroute 
       valid_lft 7148sec preferred_lft 3548sec
    inet6 fe80::a00:27ff:fe80:3148/64 scope link 
       valid_lft forever preferred_lft forever

As you can see, everything went well.

Conclusion

Setting a static IP address to Ubuntu 20.04 is quite simple even from the terminal. With this you will be able to manage your server or computer within a network more easily.

Please share this post and join our Telegram channel.

The post How to set a Static IP address on Ubuntu 20.04? appeared first on Linux Windows and android Tutorials.

PuTTY is a free application that allows you to make remote connections to any server or computer. Unlike other more advanced solutions, it does so using SSH and Telnet protocols. It is quite popular in Windows environments, and therefore sometimes forgets that there is version for Linux.

At this point, you may wonder what advantages the use of PuTTY brings over the use of the terminal and the SSH command. The truth is that with PuTTY we will have a lot of configurations to customize the connection. And all those configurations are available from a very simple and friendly graphical interface. So, this makes the job easier.

Recently version 0.73 has been released containing many patches that fix previous bugs. In fact, as indicated on the project website, these bugs brought security problems. So this version is very safe to use.

So, let us install it and use it.

Install and use PuTTY on Ubuntu 18.04 / Debian 10

One of the great advantages of PuTTY is that it is included in the official Ubuntu and Debian repositories. So the installation is a command away.

Then, open a terminal session and execute the following command:

:~$ sudo apt install putty

In case you are using Debian and do not have sudo enabled, I recommend you read this post:

How to enable sudo on Debian 10?

When the installation is finished, you can open the application with the following command:

:~$ putty

And you will see the following.

PuTTY comes with a pretty good default configuration. So to start with a connection at once, just enter the IP address or host you want to access. Then, we establish the port and the protocol. Also in this screen we will be able to save the configured session.

Clicking on Open will start the connection. If it is done for the first time, we will be shown a security warning.

Then Xterm will start and you will have to log in. In doing so, you will be able to use the connection.

As I told you at the beginning, PuTTY’s strength is its many options to configure. For example, it will look at the keyboard options we can configure.

Also, we can use a proxy to make the connection.

It is also possible to configure in depth the connection with the SSH protocol.

So, enjoy PuTTY.

Conclusion

PuTTY is one of those applications that can become necessary for daily work with SSH. It is light, fast, efficient and with many configuration options that will make it possible to connect to a server with all the ease and flexibility.

The installation is quite simple especially in Linux, so it is better to have it at hand.

Please share this post with your friends.

The post Install and use PuTTY on Ubuntu 18.04 / Debian 10 appeared first on Linux Windows and android Tutorials.

Recently, a new vulnerability has been published that affects Unix-based systems. This new vulnerability registered under the code CVE-2019-14899, shows us that malicious users can compromise the security of VPNs. It has been reported by the University of New Mexico.

What do we mean by compromising security? Well, that an external user can know if a user is connected to a VPN or visiting a certain website. However, it could also hijack all TCP connections that pass through that VPN. That is to say, connections to databases, FTP servers or even entire websites of that server would be at risk.

According to the researchers who have detected the new vulnerability, the steps for the attack are as follows:

1. Determining the VPN client’s virtual IP address.
2. Using the virtual IP address to make inferences about active connections.
3. finally, using the encrypted replies to unsolicited packets to determine the sequence and acknowledgment numbers of the active connection to hijack the TCP session.

Which systems are affected for this new vulnerability?

The affected systems are quite a lot because they cover different versions of Linux, as well as BSD and probably macOS.

So, the expert researchers, has drawn up a non-exhaustive list of distributions that are compromised. The list is as follows:

• Ubuntu 19.10 (systemd)
• Fedora (systemd)
• Debian 10.2 (systemd)
• Arch 2019.05 (systemd)
• Manjaro 18.1.1 (systemd)
• Devuan (sysV init)
• MX Linux 19 (Mepis+antiX)
• Linux Void (runit)
• Slackware 14.2 (rc.d)
• Deepin (rc.d)
• FreeBSD (rc.d)
• OpenBSD (rc.d)

So, we’re talking about a lot of Linux users.

What can we do about it?

This is a vulnerability that happens at a very technical level. Therefore, it is expected that Linux distributions will be launched to make the patch that definitively covers the vulnerability.

However, the experts give some possible temporary solutions:

1. Turning reverse path filtering on
2. Bogon filtering
3. Encrypted packet size and timing

Anyway, keep your system up to date because the patch should be here soon.

So, for more information, I leave you the link to the original publication of the new vulnerability. There you will find many technical details about it.

The post VPNs can be hacked thanks to a new vulnerability appeared first on Linux Windows and android Tutorials.

Icinga is an open-source software based on nagios that allows monitoring computer systems and networks. It is widely known worldwide as one of the most complete and easy to use.

So today we are going to install it.

Install Icinga2 on Debian 10

1) Install LAMP on Debian 10

First of all, it is necessary to have a basic LAMP service. This is mainly because we are going to install Icingaweb.

How to install LAMP on Debian 10?

Once you have LAMP installed you have to configure the timezone in PHP. To do this execute the following command:

:~$ sudo nano /etc/php/7.3/apache2/php.ini

And set the timezone:

date.timezone = "America/Chicago"

Save the changes and close the file. Then restart apache to apply the changes.

~$ sudo systemctl restart apache2

Now we can continue.

2) Create a database for Icinga

Now it is necessary to create a new database for Icinga. In this sense, we will take the opportunity to create a new user as well.

We access the MariaDB console and start:

:~$ sudo mysql -u root -p
> CREATE DATABASE icingaweb;
> GRANT ALL PRIVILEGES ON icingaweb.* TO 'icingawebuser'@'localhost' IDENTIFIED BY 'icingawebpss';
> FLUSH PRIVILEGES;
> EXIT;

3) Installing Icinga2 on Debian 10 (I)

Now we can install Icinga2’s base system. This must be done before installing Icingaweb. So open your terminal and run the following:

:~$ sudo apt install icinga2 vim-icinga2 monitoring-plugins-basic monitoring-plugins-common icingacli icinga2-ido-mysql

During the installation, we will be shown some screens asking if we want to enable Icinga support for Ido-mysql. Say yes.

After that, you will have to configure the icinga2-ido-mysql package. Again, say yes.

Then, set the MariaDB password for icinga2-ido-mysql.

4) Install Icingaweb2 on Debian 10

Now we can install Icinigaweb2. To do this just use the following command:

:~$ sudo apt install icingaweb2

And so that there are no problems in the running of the application, it is necessary to create a group icingaweb2 and be added to www-data.

:~$ sudo addgroup --system icingaweb2
:~$ sudo usermod -a -G icingaweb2 www-data

Before continuing the installation from the web, it is necessary to generate a token that we need. To do this, use these commands:

:~$ sudo icingacli setup config directory --group icingaweb2
:~$ sudo icingacli setup token create

Finally, restart the apache and Icinga service.

:~$ sudo systemctl restart apache2 icinga2

Now, we can continue.

5) Icinga2 on Debian 10 (II)

Now we can begin to complete the installation of Icinga2. Open your web browser and go to http://your-server/icingaweb2/setup.

In this first screen you have to introduce the recently generated token:

After clicking on the button below, enable the required modules. I will leave it by default.

On the next screen, the server requirements will be checked. Then click on next.

After that, set the authentication type:

When you click on next, you will have to place the credentials of the database that we have previously created.

Then set the authentication backend.

Now create the admin user and your password.

Now, set the application configuration.

Now, you will see an installation summary. Just click on Next.

Now, configure the monitoring module.

Now, configure the monitoring backend.

Then, type the following credentials to configure the monitoring resources:

Now, the command transport.

After that, configure the monitoring security.

Finally, you can start the installation.

If everything went well, you will see a screen like this.

Now, you will see the log in page.

And you will see the dashboard.

So, enjoy it.

Conclusion

Now that you know how to install Icinga2 on Debian 10, you will be able to enjoy a pretty good tool to monitor networks and computers. This way it will be easier to administer the network and computers. While it is true that there are several steps, everything is worth with this great tool.

The post How to install Icinga2 on Debian 10? appeared first on Linux Windows and android Tutorials.

In a simple and straightforward way, Ntopng is an application with a web interface that allows monitoring the traffic of a network. It has an open-source community version, released under the GPLv3 license and free for use. And it is considered a reference in this sector.

On the other hand, the application can be installed on Windows, Linux, and RaspberryPi. Within the Linux distributions, we find binaries for the most popular like Debian, Ubuntu, and CentOS. So availability is guaranteed.

So, some of its features include:

• Traffic Analysis
• Network Probe
• Traffic Recording
• Packet Capture

However, there are so many that I recommend you go to the project website to check them all.

So, let us install it.

Install Ntopng on Debian 10

The application has a repository dedicated to Debian 10 to facilitate the installation. This is the most efficient and secure method of installing Ntopng. Also, being added to the repository when there is an update we can get it from APT.

Then, let’s download a DEB package that adds and configures the Ntopng repository.

:~$ cd /tmp
:~$ wget http://apt.ntop.org/buster/all/apt-ntop.deb

Then, install GPG so that the repository can be added correctly.

:~$ sudo apt install gpg

Now install the downloaded package to add the repository.

:~$ sudo dpkg -i apt-ntop.deb

So, with the repository already added, we need to refresh the source of APT packages.

:~$ sudo apt update

Finally, install ntopng and some of its modules with the following command:

:~$ sudo apt install pfring-dkms nprobe ntopng n2disk cento

Before using the web interface, it is necessary to make some previous configurations. For example, indicate the port where it will run. To do this, just edit the configuration file of the application:

:~$ sudo nano /etc/ntopng/ntopng.conf

As you can see in the image the value of -w defines the port that will use the web interface. You can place the one you want, but remember to open it in the firewall.

Also, we need to create a new file to define the range of IP addresses of our network. Also the default or active network interface.

:~$ sudo nano /etc/ntopng/ntopng.start

Then, restart the service to apply the changes:

:~$ sudo systemctl restart ntopng

Now, open your web browser and go to http://your-server:[port] you will see the login page.

On the same page, you will see the default credentials. Username: admin and password: admin. Enter them. Then you can change it.

Finally, you will see the dashboard.

So, enjoy it.

Conclusion

Ntopng is a leader in high-level network monitoring. Thanks to its community version, it is possible to have it on our servers to help us with the task of monitoring the behavior of a network. Thanks to its repository in Debian we have been able to install it without major complications.

The post How to install NTopng on Debian 10? appeared first on Linux Windows and android Tutorials.