Authentication on Linux Machine

In case you are operating some form of business, there is a probable possibility that you are using the Linux OS in one way or perhaps another. Linux uses countless servers, personal IoT, and computers devices, and also for probably the most part, these products are set up being seen and administered remotely. In businesses, Linux servers are tasked with running serious tasks and also saving sensitive info, meaning protecting them from unauthorized access is fully necessary.

Usually, devices that are running Linux OS are secured with just username and password. And in the age of ubiquitous connectivity and cheap supercomputing it becoming increasingly evident, that simply using password isn’t a good protection for all – your devices are still unsecured from unwanted access. Using the right tools and decent skills hackers will easily break your Linux machines by staging phishing scams or by running brute-force and dictionary attacks.

The best way to prevent such situations would be enabling two factor authentication or simply 2FA. It will add the layer of security to your Linux, by requiring owners to provide an extra token aside from passwords when attempting to login. This can avoid attackers from accessing a machine by stealing or perhaps cracking a password.

Web Security on Linux Machine

What are the 2FA options for Linux?

Several of the very popular 2FA mechanisms are one-time passwords and physical keys that are sent via a telephone number or maybe a mobile application. Linux presently supports the Google Authenticator, a mobile application which gives you OTPs throughout the login procedure.

Users are given a secret code when activating for the GA application on Linux. It is used to connect their phone to their account.

Afterwards, when logging in or even entering a sudo command, the person will probably be prompted for their password along with a one-time password which shows up on the connected phone. OTPs expire after a specific amount of time goes by and after they have been used.


This 2FA method will help improve user account security on Linux user profiles and also causes it to be significantly more difficult for cybercriminals attain unwanted access to some Linux device. Nevertheless, it’s some distinct drawbacks. For starters, it requires owners to get into 2 passwords, that most customers find annoying.

The procedure may additionally be monotonous when you want fast access to the bank account of yours. Next, the 2FA mechanism relies on one channel to produce the OTP of its, and that helps make it susceptible to hacks.

When the passcode be intercepted or even cloned, or even in case the key code is found and placed on a second phone, a malicious user will have the ability to use the Linux account.