arping – a utility that sends arp packets to a specified host and displays responses.
Continue reading “Using the arping utility”
It is executed from the root user, in Linux, for this, from under a regular user, you can append before each sudo command.
I will give an example of setting up forwarding clients without money to the captive portal when connecting to the network.
Continue reading “Captive portal. Configuring ncsi redirect”
In this article I will give an example of optimizing the parameters of nf_conntrack for a high-loaded NAT server.
Continue reading “Tuning nf_conntrack”
Fiddler is a free web debugging proxy.
Continue reading “Fiddler”
I will give a small list of some popular network protocols, the ports that they use and their brief description:
Continue reading “List of network protocols and ports”
In this article I will give an example of generating keys and adding DKIM records.
Continue reading “How to add DKIM record”
You can buy a domain and hosting from a domain name registrar, for example godaddy.com
After the purchase you will need to configure the DNS settings in the control panel on the site where it is registered.
Continue reading “How to buy and setup a domain”
WonderShaper is software for Linux that allows you to limit the speed of data transmission and reception on network interfaces, suitable for home or office computers.
Continue reading “Installing and using the Wondershaper”