coders:\> journal_

Cybersecurity & Technical Support

Reference Guide for IPv4 CIDR, Subnet Masks and Usable IP

What is a /24 or a /22?

IP address are divided into portions. One part identifies a network and the other part identifies a specific machine or host within the network. IPv4 subnet masks identify the range of IP addresses that make up a subnet, or group of IP addresses on the same network. For example, a subnet can be used to identify all the machines in your house, building, department, geographic location, or on the same local area network (LAN).

In IPv4, the subnet mask 255.255.255.0 is 32 bits and consists of four 8-bit octets. Example thhe address 10.10.10.0 subnet mask 255.255.255.0 me...



Print man Pages to Text File

If you need to create a copy of a man (manual) page of a specific command, type the following on your command shell:

$ man [command] | col -b > filename.txt

Replace [command] with the command of your choice.
This will print the manual page of that command to filename.txt.

Dec 02, 2018 Acronix in Linux
How to run a Speed Test from your Terminal

Fancy doing things in your shell prompt?
There is a way to run a speed test from your Linux Terminal.

To test your Internet connection bandwidth using your shell prompt,
you can install speedtest-cli

$ sudo apt-get install speedtest-cli

then run:

$ speedtest

or just run this directly:

curl -s https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py | python -
Nov 17, 2018 Acronix in Linux