What is SSH and how does it work in the context of network security?

SSH stands for Secure Shell. It is a cryptographic network protocol that provides a secure way to access and manage remote devices over an unsecured network. In the context of network security, SSH works by establishing an encrypted connection between a client and a server. This encryption ensures that the data transmitted between the client and server remains secure and cannot be easily intercepted or tampered with by malicious actors.SSH uses public-key cryptography to authenticate the client and the server. When a client wants to connect to a server, the server provides its public key to the client. The client then uses this public key to encrypt a random session key and sends it back to the server. The server, having the corresponding private key, can decrypt the session key and use it to establish a secure connection with the client.Once the connection is established, SSH encrypts all the data transmitted between the client and the server, including commands, passwords, and files. This encryption prevents eavesdropping and protects sensitive information from being exposed.SSH also provides additional security features such as port forwarding, which allows secure access to services running on a remote server, and key-based authentication, which eliminates the need for passwords and provides an extra layer of security.Overall, SSH is a widely used protocol in network security as it ensures secure remote access to devices and protects sensitive data from unauthorized access.

How does the NAS Qsan XCubeSAN XS1226 utilize SSH for secure remote access and file transfer?

The NAS Qsan XCubeSAN XS1226 utilizes SSH (Secure Shell) for secure remote access and file transfer by implementing SSH protocols and encryption algorithms. Here's how it works:Secure Shell (SSH): SSH is a cryptographic network protocol that provides secure communication over an unsecured network. It establishes a secure channel between a client and a server, allowing secure remote access and file transfer.Authentication: When accessing the Qsan XCubeSAN XS1226 remotely, SSH uses various authentication methods such as password-based authentication, public key authentication, or certificate-based authentication. This ensures that only authorized users can access the system.Encryption: SSH uses encryption algorithms to secure the communication between the client and the server. It encrypts the data transmitted over the network, making it difficult for unauthorized users to intercept or tamper with the information.Secure File Transfer: The Qsan XCubeSAN XS1226 supports SFTP (SSH File Transfer Protocol), which is a secure alternative to FTP. SFTP allows users to securely transfer files between the NAS and remote devices using SSH encryption. It ensures the confidentiality and integrity of the transferred files.Command Execution: SSH also enables secure remote command execution. Users can remotely execute commands on the Qsan XCubeSAN XS1226 using SSH, providing a secure way to manage and administer the system.Overall, by implementing SSH protocols and encryption, the NAS Qsan XCubeSAN XS1226 ensures secure remote access and file transfer, protecting the confidentiality and integrity of the data being transmitted.

What are the advantages of using SSH protocol in the Qsan XCubeSAN XS1226 NAS system, and how does it enhance data security and privacy?

The SSH (Secure Shell) protocol provides several advantages in the Qsan XCubeSAN XS1226 NAS system, enhancing data security and privacy. Here are some of the key advantages:Secure Remote Access: SSH allows secure remote access to the NAS system. Users can securely connect to the NAS server from remote locations using SSH client software, ensuring that data transmission is encrypted and protected from unauthorized access.Encrypted Data Transmission: SSH encrypts all data transmitted between the client and the server, making it difficult for anyone to intercept and decipher the information. This ensures the confidentiality and integrity of the data being transferred.Authentication and Access Control: SSH provides robust authentication mechanisms, allowing users to securely log in to the NAS system using cryptographic keys or passwords. This ensures that only authorized users can access the system, reducing the risk of unauthorized access and potential data breaches.Secure File Transfers: SSH supports secure file transfer protocols like SFTP (SSH File Transfer Protocol) and SCP (Secure Copy), which enable secure file transfers between the NAS system and remote clients. This ensures that files are transferred securely, protecting them from interception or tampering during transit.Protection against Man-in-the-Middle Attacks: SSH incorporates strong cryptographic algorithms and key exchange protocols, protecting against man-in-the-middle attacks where an attacker intercepts and alters the communication between the client and the server. This ensures the integrity of the data and prevents unauthorized modifications.Overall, the SSH protocol enhances data security and privacy in the Qsan XCubeSAN XS1226 NAS system by providing secure remote access, encrypted data transmission, robust authentication, secure file transfers, and protection against various types of attacks.

How to recover data from Qsan XCubeSAN XS1226 NAS

Name: How to recover data from a Qsan
Uploaded: 2023-09-05T18:00:23+03:00
Description: How to recover data from a Qsan

Is your network drive gone, and you are wondering what to do? Has a RAID system crashed, and your files are no longer accessible? Does your device display an error while booting? Have you accidentally rebuilt your RAID system? Are several hard disks out of order?

How to recover data from NAS Qsan XCubeSAN XS1226

Data Recovery Tool

Qsan XCubeSAN XS1226 NAS Data Recovery in 2024

In this step-by-step tutorial, we’ll show you how to rebuild your RAID and recover data from XCubeSAN XS1226.

Contents

Why can’t ordinary software tools restore files from RAID?
How to take hard disks out of the NAS and connect them to a PC?

RAID Recovery™ 2.6

Recover data from damaged RAID arrays inaccessible from a computer.

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Why can’t ordinary software tools restore files from RAID?

Conventional hard disks keep user’s data by writing it to their surface in a consecutive way, and this is how an entire file is stored on a single hard disk. However, when data is written to a RAID system, a file is divided into several parts. Then these parts are written consecutively to all hard disks within such array. The size of such parts may range from 2 KB to 2 MB, so each file is stored on several hard disks at the same time.

Such approach helps to speed up read and write operations, and it is evident that saving two parts of a file having the size of 1 GB to two hard disks simultaneously is much faster than saving the same 1 GB of data to one hard disk. However, this peculiarity makes file recovery more complicated.

Various RAID levels store information in different ways. Additionally, manufacturers like Qsan also introduce some modifications to this process, and that is why data can be written to hard disk in a wide variety of ways.

Are there any known limitations or performance bottlenecks that can increase data loss risks for NAS Qsan XCubeSAN XS1226 devices?

There are several known limitations and performance bottlenecks that can increase data loss risks for NAS Qsan XCubeSAN XS1226 devices. Some of them include:

Insufficient redundancy: The XS1226 device may not have sufficient redundancy in terms of hardware components or RAID configurations. This can increase the risk of data loss in case of hardware failures or disk failures.
Lack of backup mechanisms: If proper backup mechanisms are not in place, such as regular backups to external storage or cloud storage, data loss risks can increase. In the event of a catastrophic failure or accidental deletion, there may be no way to recover the lost data.
Inadequate network infrastructure: If the network infrastructure supporting the XS1226 device is not properly designed or lacks sufficient bandwidth, it can lead to performance bottlenecks and data loss risks. This is especially true if multiple users or applications are accessing the NAS simultaneously.
Lack of monitoring and alerts: If the XS1226 device does not have proper monitoring and alerting mechanisms in place, it may be difficult to detect and address potential issues that can lead to data loss. For example, disk failures or high disk usage may go unnoticed until it's too late.
Inadequate security measures: Insufficient security measures, such as weak passwords or lack of encryption, can increase the risk of unauthorized access and data loss. Malicious actors can exploit vulnerabilities in the system to gain access to sensitive data or delete important files.

It is important to note that these limitations and performance bottlenecks can be mitigated by implementing best practices such as regular backups, redundant hardware configurations, monitoring systems, and robust security measures.

How to take hard disks out of the NAS and connect them to a PC?

Although NAS XCubeSAN XS1226 can be accessed over the network, you still need to take the hard disks out of the storage device and connect them to a Windows computer. Only in this case will the software be able to scan them properly. Here is what you should do:

Turn off the storage and disconnect it from the power supply.

WARNING! Before you start taking hard disks out of your NAS device, read the manual carefully. Incorrect actions may damage your network-attached storage and/or the hard disks within the RAID system.
Take the hard disks out of the NAS one by one, carefully removing them from their slots. Remember that the disks are extremely vulnerable: hitting or dropping them may result in serious physical damage.
Make sure to mark each hard disk in accordance with how they were installed inside the NAS.
Remove the hard disks and connect them to the computer. In this video, we have explored what ports are used to connect hard disks, and what to do if there are not enough ports or connectors.

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How to Order Remote Data Recovery

Restoring data with Hetman RAID Recovery

This program recovers data from damaged RAID arrays and is fully compatible with Qsan XCubeSAN XS1226. The hard disks that make up the RAID contain technical information about the algorithm used to save files. When launched, Hetman RAID Recovery reads this information and puts the damaged array together. Then you can open the disk and save your files. Also, you can recover the files accidentally deleted from the network drive.

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How to recover data from a Qsan

XCubeSAN XS1226 has 26 HDD slots, and it supports the following array types:

RAID 0;
RAID 1;
RAID 5;
RAID 6;
RAID 50;
RAID 60;
JBOD;

NAS supports:

exFAT, VFAT, FAT 12 / 16 / 32;
NTFS / ReFS;
APFS / HFS+;
Ext2 / 3 / 4 / ReiserFS / XFS / UFS / ZFS / Btrfs;
VMFS / HikvisionFS;

Safe recovery from disk images

This utility lets you save an entire copy of the disk to file and then work with this image instead of the actual disk. Such feature helps to protect data on the disk from:

Overwriting during the recovery process;
Loss resulting from bad sectors;
User mistakes.

To create an image, do the following:

Make sure that you have enough free space to save the image. The image file size usually equals the disk size.
Select the disk in the main window, and choose from the menu Tools – Save Disk. You can select multiple disks to be saved.
When the image creation wizard starts, you can choose to save the entire disk or select only a part of it. Specify the parameters and click Next.
At this stage, you need to choose a directory where to save the image. Choose any disk connected to this PC, or save the image by FTP.

Where are user’s files stored?

The Qsan XCubeSAN XS1226 network-attached storage keeps SANOS operating system files on a separate RAID 1 (mirrored) array. Usually, all NAS systems create several volumes on every hard disk, and the first of them takes up to 2 Gb of space. This is where operating system files are stored. Other volumes are united into a RAID array where user’s data is written.

Comparison of software for RAID recovery

Product	Operating system	License type	RAID controller support	Supported file systems	Virtual RAID controller support	Data recovery from damaged RAID	File preview
Hetman RAID Recovery	Windows	Paid	Yes, over 100 controllers	FAT, NTFS, Ext2/3/4, HFS+	Yes	Yes	Yes
DiskInternals RAID Recovery	Windows	Paid	Yes, over 100 controllers	FAT, NTFS, Ext2/3/4, HFS+	No	Yes	Yes
R-Studio	Windows, Mac, Linux	Paid	Yes, over 200 controllers	FAT, NTFS, Ext2/3/4, HFS+	Yes	Yes	Yes
UFS Explorer RAID Recovery	Windows, Mac, Linux	Paid	Yes, over 1,000 controllers	FAT, NTFS, Ext2/3/4, HFS+	Yes	Yes	Yes
EaseUS Data Recovery	Windows	Paid	Yes, over 20 controllers	FAT, NTFS, Ext2/3/4, HFS+	No	Yes	Yes
ReclaiMe Free RAID Recovery	Windows	Free	Yes, over 100 controllers	FAT, NTFS, Ext2/3/4, HFS+	Yes	Yes	Yes

Feedback

We will be happy to answer your questions!

Comments (3)

Hetman Software: Data Recovery 9.08.2022 12:31 #

If you want to ask a question about data recovery, from NAS XCubeSAN XS1226, feel free to leave a comment!

Reply
Shawn Hobson 5.09.2023 17:49 #

How to recover data from NAS Qsan XCubeSAN XS1226?

Reply
- Hetman Software 5.09.2023 18:00 #
  To recover data from a NAS Qsan XCubeSAN XS1226, you can follow these steps:
  Stop using the NAS: As soon as you realize that data has been lost or deleted, stop using the NAS immediately. Continued usage can overwrite the deleted data, making it harder or even impossible to recover.
  Contact a data recovery specialist: It is recommended to seek professional help from a data recovery specialist who has experience with NAS devices. They will have the necessary tools and expertise to handle the recovery process.
  Provide necessary information: When contacting the data recovery specialist, provide them with all the relevant information about the NAS, such as the model (Qsan XCubeSAN XS1226), the operating system, any error messages, and the circumstances leading to the data loss.
  Ship the NAS to the recovery specialist: If the specialist determines that physical recovery is required, they will provide instructions on how to safely ship the NAS to their facility. Make sure to follow their guidelines to prevent any further damage during transit.
  Evaluation and recovery process: Once the recovery specialist receives the NAS, they will evaluate the extent of the data loss and provide you with a detailed report. They will then proceed with the recovery process using specialized tools and techniques.
  Data retrieval: After the recovery process is complete, the specialist will provide you with the recovered data. It is advisable to store the data on a different storage device to avoid any potential data loss in the future.
  Note: Data recovery from a NAS can be a complex and delicate process. It is crucial to choose a reputable and experienced data recovery specialist to ensure the best chance of successful recovery.
  Reply

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Updated:
5.09.2023 18:00

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In other languages:
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Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.

Questions and answers

What is SSH and how does it work in the context of network security?

SSH stands for Secure Shell. It is a cryptographic network protocol that provides a secure way to access and manage remote devices over an unsecured network.
In the context of network security, SSH works by establishing an encrypted connection between a client and a server. This encryption ensures that the data transmitted between the client and server remains secure and cannot be easily intercepted or tampered with by malicious actors.
SSH uses public-key cryptography to authenticate the client and the server. When a client wants to connect to a server, the server provides its public key to the client. The client then uses this public key to encrypt a random session key and sends it back to the server. The server, having the corresponding private key, can decrypt the session key and use it to establish a secure connection with the client.
Once the connection is established, SSH encrypts all the data transmitted between the client and the server, including commands, passwords, and files. This encryption prevents eavesdropping and protects sensitive information from being exposed.
SSH also provides additional security features such as port forwarding, which allows secure access to services running on a remote server, and key-based authentication, which eliminates the need for passwords and provides an extra layer of security.
Overall, SSH is a widely used protocol in network security as it ensures secure remote access to devices and protects sensitive data from unauthorized access.
How does the NAS Qsan XCubeSAN XS1226 utilize SSH for secure remote access and file transfer?
The NAS Qsan XCubeSAN XS1226 utilizes SSH (Secure Shell) for secure remote access and file transfer by implementing SSH protocols and encryption algorithms. Here's how it works:
1. Secure Shell (SSH): SSH is a cryptographic network protocol that provides secure communication over an unsecured network. It establishes a secure channel between a client and a server, allowing secure remote access and file transfer.
2. Authentication: When accessing the Qsan XCubeSAN XS1226 remotely, SSH uses various authentication methods such as password-based authentication, public key authentication, or certificate-based authentication. This ensures that only authorized users can access the system.
3. Encryption: SSH uses encryption algorithms to secure the communication between the client and the server. It encrypts the data transmitted over the network, making it difficult for unauthorized users to intercept or tamper with the information.
4. Secure File Transfer: The Qsan XCubeSAN XS1226 supports SFTP (SSH File Transfer Protocol), which is a secure alternative to FTP. SFTP allows users to securely transfer files between the NAS and remote devices using SSH encryption. It ensures the confidentiality and integrity of the transferred files.
5. Command Execution: SSH also enables secure remote command execution. Users can remotely execute commands on the Qsan XCubeSAN XS1226 using SSH, providing a secure way to manage and administer the system.
Overall, by implementing SSH protocols and encryption, the NAS Qsan XCubeSAN XS1226 ensures secure remote access and file transfer, protecting the confidentiality and integrity of the data being transmitted.
What are the advantages of using SSH protocol in the Qsan XCubeSAN XS1226 NAS system, and how does it enhance data security and privacy?
The SSH (Secure Shell) protocol provides several advantages in the Qsan XCubeSAN XS1226 NAS system, enhancing data security and privacy. Here are some of the key advantages:
1. Secure Remote Access: SSH allows secure remote access to the NAS system. Users can securely connect to the NAS server from remote locations using SSH client software, ensuring that data transmission is encrypted and protected from unauthorized access.
2. Encrypted Data Transmission: SSH encrypts all data transmitted between the client and the server, making it difficult for anyone to intercept and decipher the information. This ensures the confidentiality and integrity of the data being transferred.
3. Authentication and Access Control: SSH provides robust authentication mechanisms, allowing users to securely log in to the NAS system using cryptographic keys or passwords. This ensures that only authorized users can access the system, reducing the risk of unauthorized access and potential data breaches.
4. Secure File Transfers: SSH supports secure file transfer protocols like SFTP (SSH File Transfer Protocol) and SCP (Secure Copy), which enable secure file transfers between the NAS system and remote clients. This ensures that files are transferred securely, protecting them from interception or tampering during transit.
5. Protection against Man-in-the-Middle Attacks: SSH incorporates strong cryptographic algorithms and key exchange protocols, protecting against man-in-the-middle attacks where an attacker intercepts and alters the communication between the client and the server. This ensures the integrity of the data and prevents unauthorized modifications.
Overall, the SSH protocol enhances data security and privacy in the Qsan XCubeSAN XS1226 NAS system by providing secure remote access, encrypted data transmission, robust authentication, secure file transfers, and protection against various types of attacks.