Get information such as your MAC address and IP address easily.
How to get useful network information from the command line on Linux.
network
Cisco Umbrella is a good solution for blocking unwanted websites on your network.
Why Cisco Umbrella is a good solution for a business to provide safe and secure Internet access.
Computer networks are a lot of fun. But be careful.
How to best secure a computer network and ensure a data breach never happens.
Tracebox. A very good alternative to traceroute.
Tracebox, a very useful tool to display all network hops and packet manipulation on the way across the Internet.
How to see the network hops to a website with the command line.
How to use the MTR command on Linux to see network hops over a network to a website.
Get information about network connections with tcpdump on Linux.
Getting information about network connections with tcpdump is very easy. In the example below I am looking for connections to/from 192.168.1.5. The result is I get information about the current SSH session on port 22. jason@jason-Lenovo-H50-55:~$ sudo tcpdump -i any -c5 -nn host 192.168.1.5 tcpdump: verbose output suppressed, use -v or -vv for full protocol … Read more
How to list interfaces with Nmap. This is a very useful tip.
It is possible to list interfaces with Nmap. This is a good way to see all active network devices attached to your computer. Use the –iflist parameter as shown below to show all network interfaces on your machine. jason@jason-Lenovo-H50-55:~$ nmap –iflist Starting Nmap 7.80 ( https://nmap.org ) at 2022-03-18 10:38 AEDT ************************INTERFACES************************ DEV (SHORT) IP/MASK … Read more
A brief look a various network attacks that can compromise your network resources.
A handful of network attacks that can compromise your network nodes A short discussion of various network attacks that your network can face from the Internet. A handful of network attacks that can compromise your network nodesTCP attacksUDP attacksICMP attacksMisc attacks TCP attacks TCP SYN attack: This attack begins as a normal TCP connection, the … Read more
Installation of Arch Linux was quite painless. This is far faster than Ubuntu.
Tips for installing Arch Linux and getting started I have just installed Arch Linux 2021 and it is far faster to load than Ubuntu with the bloated codebase it has. After installation, I had an issue with the networking, but I installed Network Manager and this was a good way to get the installation working. … Read more
How to best enforce security in a local network situation.
Windows security on a local area network A handful of network attacks that can compromise your network nodesTCP attacksUDP attacksICMP attacksMisc attacksWindows security on a local area networkStrong passwordsSecuring the Windows systemsPhysical securityEducating usersOnline security Strong passwords Enforcing strong passwords with Active Directory is another way to keep the network safe. Users may be tempted … Read more
Different types of networking attacks and techniques.
Footprinting Footprinting is defined as the process of gathering information on computer systems and networks. This is the first step in information gathering and provides a useful insight into the network you are planning to attack. Zero-day exploits These are exploits that are found before there are patches for these problems. These can cause many … Read more
A very nice network emulator for PC.
Common Open Research Emulator is a very good networking emulator for Linux machines. This allows a user to create a network layout with IP addresses and see it working. This is very interesting software. Download the source code from Github. ┌─[jason@jason-desktop]─[~/Documents/core] └──╼ $git clone https://github.com/coreemu/core.git┌─[jason@jason-desktop]─[~/Documents/core] └──╼ $git clone https://github.com/coreemu/core.git Then begin the installation like this. … Read more
Types of network attacks.
TCP attacks TCP SYN attack: This attack begins as a normal TCP connection, the client and server exchange information in TCP packets. A client sends an ACK packet to the server requesting a connection. The server will respond with a packet acknowledging the connection and then the data transmission may continue as normal. But in … Read more
How to mount a folder on another computer over a network using SSH.
Using SSH is a very good way to connect to another computer that is running Linux, it is also possible to mount a folder on the remote machine over a network and access it on your local computer. This is a very good way to access remote files. Firstly, install sshfs. 4.4 Thu Nov 21 … Read more
How to use the Network Manager CLI on Ubuntu.
Using the Network Manager CLI app to get information about your network connections is very simple. This allows a user to manage network connections without using a GUI. Linux users do not always use the desktop and use of the CLI is an important skill. So it is very good to be able to manage … Read more
Security still forgotten on the Internet.
The concept of securing your website is forgotten on the modern Internet, there are still unsecured websites and half-completed Drupal installations littering the web. This must be taken care of. There are a huge number of SQL database dumps that have been saved in /backup/ folders exposed to the Internet, but at least you can … Read more
Removing Network Manager from Ubuntu. I am sick of it.
I am finally sick of using Network Manager on Ubuntu 18. It seems to make my Internet connection slower and I am constantly messing around trying to fix it. I used the command below to remove the Network Manager service. 4.4 Fri Aug 31 jason@Yog-Sothoth 0: $ sudo apt-get remove network-manager network-manager-gnome network-manager-pptp network-manager-pptp-gnome Now … Read more
How to view network traffic to find a certain person that is hogging bandwidth.
To view network traffic and then locate certain traffic that is hogging bandwidth, use the iftop utility. This is a great way to see what is going on in your network. Just install iftop. jason@Yog-Sothoth » ~ » $ sudo apt install iftop Then run it with this one-liner. jason@Yog-Sothoth » ~ » $ sudo … Read more
Get comprehensive networking information from the command line.
If you are using Network Manager to connect to a network, then it is possible to get comprehensive networking information from the command line. This command will print a lot of information about your Network Manager configuration. jason@jason-desktop:~$ nmcli dev showjason@jason-desktop:~$ nmcli dev show Show a listing of available WIFI access points. jason@jason-desktop:~$ nmcli device … Read more
Cracking a WPA2 network with aircrack-ng and Parrot.
Starting a USB wireless interface in monitor mode. ┌─[root@parrot]─[/home/jason] └──╼ #airmon-ng start wlan1 Found 3 processes that could cause trouble. If airodump-ng, aireplay-ng or airtun-ng stops working after a short period of time, you may want to run ‘airmon-ng check kill’ PID Name 593 NetworkManager 749 wpa_supplicant 923 dhclient PHY Interface Driver … Read more