1. Two-Factor Authentication Solution for
Linux Remote Login
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Two-Factor Authentication Solution for Linux Remote
Login
Solution
ArrayShield innovative two factor authentication system – IDAS provides a simple secure
remote access to remote Linux login. By using its innovative pattern based authentication it
provides One-Time-Secret-Code for every login transaction.
In IDAS every user is shown with a matrix which is populated with random characters for every
transaction. User has to choose a pattern which is sequence of cells in the matrix and should
register the same with the system prior accessing. A translucent card is provided to each user
which has a similar structured matrix with transparent and opaque cells and some random
characters imprinted on the opaque cells. Each card is unique in terms of the position of the
opaque cells and the characters imprinted on them.
At the time of accessing the remote Linux server through SSH the user is shown with the
randomly populated matrix as a challenge in ArrayShield IDAS client application. The user
overlaps the translucent card on the shown matrix and will key in the characters present in the
chosen pattern in the same order as a response. These characters form the One-Time-Secret-
Code for the user for that transaction. The IDAS server verifies the user credentials by
comparing user’s registered pattern and the pattern values entered by the user. Access is given
to the user if the user credentials are valid.
Problem with existing Remote login authentication
Today’s organizations use various applications for wide range of business needs. Most of
these applications run on Unix or Linux servers. Protecting the remote logins of these
servers is the most important way to secure the infrastructure of organizations. As the
applications run on these servers possess most sensitive data of the organization, using a
weak authentication mechanism of Username/Password does not protect from
sophisticated security threats.

2. Two-Factor Authentication Solution for
Linux Remote Login
A r r a y S h i e l d | i n f o @ a r r a y s h i e l d . c o m Page 2
Integration Flow
The following diagram shows how remote linux server login is integrated with ArrayShield IDAS
to use its two factor authentication for secure and reliable access to remote servers.
s
.
Figure: Integration flow diagram-Linux Remote Login with ArrayShield IDAS

3. Two-Factor Authentication Solution for
Linux Remote Login
A r r a y S h i e l d | i n f o @ a r r a y s h i e l d . c o m Page 3
Features
Innovative Technology
ArrayShield IDAS Technology is patent pending (globally) and has won several
awards/recognitions in various forums for its innovative concept.
High Level of Security
ArrayShield IDAS product leverages advanced Encryption methodologies (like Industry Standard
AES (128/192/256 bit) algorithms as well as in-house developed advanced cryptographic
techniques) and follows Industry Standard Guidelines and Best Practices.
Ease of Use
ArrayShield IDAS is based on user-intuitive patterns which are easy to remember than complex
passwords than can be easily compromised.
Easy to Integrate
ArrayShield IDAS product will seamlessly integrate with existing enterprise environments with
improved user experience. No expertise is required for integration.
Interoperable System
ArrayShield IDAS can also be configured as add-on module with various products of leading
technology players. Support is available for SAML, LDAP, RADIUS, TACACS protocol etc.
Easy to Deploy
ArrayShield IDAS can be easily deployed in days (not in weeks) because of easy-to-configure API
based system.
Easily Customizable
ArrayShield IDAS product can be easily customized to the unique needs of every organization.
Once deployed, organizations can also configure the security strength and mechanism to the
amount of risk involved in the user’s role and usability requirements.
Highly Scalable
ArrayShield IDAS can be easily scaled with huge user population without affecting the
performance and usability.

4. Two-Factor Authentication Solution for
Linux Remote Login
A r r a y S h i e l d | i n f o @ a r r a y s h i e l d . c o m Page 4
Benefits
Low Total Cost of Ownership
ArrayShield IDAS provides Strong Authentication at a fraction of cost of traditional alternatives.
Minimal Cost is incurred during purchase as well as maintenance. As there is no need of having
costly hardware tokens or transactional costs incurred because of SMS etc, ArrayShield’s
Product provides lowest Total Cost of Ownership. No costly server hardware needed.
Mobility of the user
As ArrayShield uses a simple plastic card that can be carried on the go, it doesn’t have any
dependencies. Hence user will be able to access the application any-time, any-where.
Provides peace of mind
Protects Organizations and customers from Online Identity and data theft, hence provide peace
of mind.
Provides Compliance with regulations
Regulatory agencies agree that passwords are a weak link and are requiring companies to
implement stronger authentication. ArrayShield is a rapid, cost-effective way to comply with
Industry Guidelines, Security Standards and other Industry regulations.
Conclusion
By using ArrayShield IDAS Two-Factor authentication solution, organizations can enable the
secure access to remote login servers. The solution will make organizations of all sizes and
complexities protect from malicious attacks.