Elevate your SSH security with NordLayer

While Secure Socket Shell (SSH) provides a level of security, nowadays, it's crucial to go the extra mile in safeguarding your remote connections. Enter NordLayer's Smart Remote Access, a robust solution that elevates your SSH security to the heights.

Secure Socket Shell (SSH) Security


What is Secure Socket Shell (SSH)?

It is a cryptographic network protocol that ensures secure communication between devices. 

SSH employs strong encryption algorithms, like Advanced Encryption System (AES), to protect data during remote logins to computers or servers. With this protocol, port forwarding lets you conveniently access your office desktop from your laptop at home. Yet, it's important to note that SSH channels should be closely monitored to prevent unauthorized access on less secure networks.

Secure Socket Shell Explained


Why is SSH important & why do you need it?

Because it solves multiple issues. Firstly, it resolves connectivity issues in cloud computing. SSH establishes a secure path through a firewall to a virtual machine and eliminates direct exposure to the internet. Secondly, it ensures secure remote access and communication between systems. SSH preserves data confidentiality and integrity through encryption. Plus, SSH provides strong authentication, efficient remote management, and secure and automated file transfer sessions. Its functions include safeguarding sensitive information, remote command issuance, and network infrastructure management. And lastly – it facilitates encrypted connections and allows port forwarding for remote access, necessitating close supervision to prevent unauthorized breaches.

Secure Socket Shell (SSH) Explained - how it works


Advantages of Secure Socket Shell

SSH has many pros that could help your organization in many cybersecurity aspects. From fortified system administration and secure file transfers to streamlined automation and advanced authentication, SSH provides a comprehensive solution to protect your digital presence.

Secure system administration

Secure system administration

SSH enhances security in system administration tasks by providing access control, robust user authentication, and secure configurations. It enables your admins to manage accounts on web servers remotely, simplifying hosting control and facilitating permission and password-sharing management.

Secure file transfers

Secure file transfers

To protect sensitive data from threats such as IP address spoofing, DNS spoofing, and data theft, secure file transfers are made possible with SSH. It encrypts data, preventing unauthorized access, and offers easy-to-use features for web administrators, making it an ideal solution for transferring files securely.

Automation with SSH keys

Automation with SSH keys

Streamlining access to servers and eliminating the need for passwords, SSH keys enable single sign-on and efficient automated processes. They provide secure authentication, enhancing system security and enabling streamlined operations.

Cryptographic authentication

Cryptographic authentication

By employing cryptographic authentication, SSH ensures secure and reliable identification and verification of users. This mitigates the risks associated with unauthorized access and data breaches, enhancing overall system security.

Automatic session encryption (with TLS protocol)

Automatic session encryption (with TLS protocol)

For the confidentiality and integrity of data transmitted over the network, SSH automatically encrypts sessions using the TLS protocol. This robust encryption mechanism safeguards sensitive information from eavesdropping and unauthorized interception.



By utilizing multiplexing, SSH optimizes speed and efficiency. It allows multiple data streams through a single TCP connection, reducing overhead, conserving resources, and enabling fast remote management and data transfers.


Vulnerabilities of Secure Socket Shell

SSH offers a robust protocol for secure remote connections, but it's important to be aware of the potential vulnerabilities and challenges associated with its implementation. By understanding these aspects, your organization can proactively enhance its security posture. And here goes some key considerations to keep in mind:

Insufficient authentication methods in SSH can pose significant risks. While the protocol itself is secure, weaknesses in password authentication and untracked/unmanaged keys can be exploited, leading to unauthorized access and potential breaches.


Boost your SSH security with NordLayer's Smart Remote Access

Created for the modern workforce, Smart Remote Access enhances SSH security by creating a virtual LAN over the internet. It enables secure server access, device control, file sharing, and remote troubleshooting. With this NordLayer solution, you can establish a secure connection to company resources from anywhere, creating a virtual office environment.

Enrich SSH security with Nordlayer

How NordLayer enhances your SSH security?

How NordLayer helps secure SSH


This is a vital component of NordLayer's SSH security enhancements. It converts data into an unreadable format, ensuring confidentiality and protection against unauthorized access. By applying encryption at the network layer, our model conceals data packets, reducing the risk of data breaches. With robust encryption algorithms and secure keys, NordLayer safeguards your information while maintaining network speed and user experience.


When enabled, it automatically blocks harmful websites, preventing malware and other cyber threats from infecting your device. ThreatBlock evaluates websites based on trusted databases and user feedback, blocking those associated with illegal activity or deemed unsecured.

Bolster your network security with NordLayer, your trusted defense against cyber threats

Discover a wide range of NordLayer cybersecurity solutions by choosing from our selection of subscription plans. Start now to fortify your organization’s security, or get in touch with our cybersecurity specialist for more information!

Additional info

Frequently asked questions

SSH primarily uses TCP (Transmission Control Protocol) for its communication. TCP provides a reliable and connection-oriented communication stream, ensuring secure and dependable data transfer in SSH. 

Unlike UDP (User Datagram Protocol), which is a connectionless protocol, TCP verifies that the recipient is ready to receive files before sending them. This prevents data from arriving out of order, in fragments, or not at all. While SSH can be run over an RS-232 connection, it typically relies on TCP for its encrypted and authenticated communication between clients and servers. Additionally, SSH can create secure tunnels for various application protocols, enabling secure remote execution of graphical sessions, among other functionalities. SSH servers typically listen on the standard TCP port 22.