Tag Archives: data
What Are The Main Benefits Of Free SSL Certificates?
SSL (Secure Socket Layer) is a certificate, which offers network safety for e-commerce websites. This is the component of the online protocol required to safeguard the information of the customer. The SSL certificate verifies the legality of the server of the website, encrypts data sent out, protects data integrity at some stage in transmission and decrypts the information sent out once it lands at the secure server. The certificate is vital for online stores since it offers clients assurance that their information is kept secure and safe from online hackers and identity theft. Ahead of installing the certificate, it is essential to decide the kind of server the website is processing. In several cases, websites employ Apache servers necessitating an Apache SSL certificate.
There are several kinds of SSL certificates comprising: wildcard SSL, free SSL, shared SSL certificate and dedicated SSL. These certificates give different benefits. Dedicated certificates are utilized merely in one domain. Shared SSL, as the name reveals, is shared by diverse websites. It is less costly weighed against a dedicated certificate. Wildcard serves for websites that hold sub domains. The certificate safeguards both sub domains and the main domain. A free SSL certificate is the least costly alternative. Nevertheless, there may possibly be security risks linked with this alternative if the website possessor doesn’t choose well. In general, the superior the cost of the certificate of Apache SSL, the superior the security it gives.
SSL certificates offer several benefits to online stores for example:
Data protection
The data transmitted to the server that the business is hosted on, is private from a website source over the internet. This will guard data from landing into incorrect hands. Significant information, for instance personal information, passwords and credit card numbers are encrypted by a certificate and as a result they will be considered unreadable by others. Once the data lands in the protected server, it is only at that time that the encrypted data is decoded.
Verification of the server
An SSL certificate gives a pledge that the server is lawful. When an e-commerce site buys a certificate, certificate authorities offer a digital certificate. This makes certain that the website possessor’s information is broadcasted and kept secure by a legitimate server.
Verification of the website
It isn’t only essential to verify the identity of the server but that of the online storage too. A number of online hackers could find a way into the system and take control the website. They can accomplish an imitation attack and pretend to be the actual possessor of the online storage. This permits them to access decisive information given by clients. An SSL certificate makes certain that the site is possessed by the real possessor and it is what it asserts to be.
Trustworthiness
An e-commerce site, which employs a SSL certificate, is able to rapidly win clients’ trust. An online store, which is considered to be trustworthy, tends to draw more clients and purchasers than the doubtful one.
When Software Cant Help: SSD, Cloud and Online Services
In the first part of the article, we took a look at programs for recovering data from traditional hard drives. In this second part of the series “When Software Cant Help” well talk about flash-based (solid-state) storage, cloud storage systems and online storage services.
Solid-State Drives (SSD)
Solid-state drives are often used in place of traditional hard disks. SSD drives offer smaller capacities but much higher speed, especially when random access speed is concerned. With no moving parts, SSD drives are more robust mechanically. They can withstand higher shocks, which makes them particularly great for portable applications. Another laptop-friendly feature is a much lower power consumption compared to magnetic hard drives.
SSD drives do come with their share of issues affecting data loss and data recovery situations. These issues are highly dependent on the ways SSD drives record information. With SSD drives, recovering a file deleted a few minutes ago is far from a given. Same goes for formatted disks; however surprisingly, corrupted SSDs may be recovered just as well as traditional hard drives. But lets elaborate.
Why Recovering Deleted Files from SSD Drives May Not Work
All fairly recent SSD drives implement a special set of procedures allowing them to optimize their writing performance. These procedures include background garbage collection and TRIM.
Why do SSD drives need garbage collections and magnetic hard disks dont? Because flash chips have much faster clear writes compared to erase-then-write times. In other words, flash cells that contain information need to be erased (emptied) before new information can be written in, and that erase process is very slow compared to plain write operation. In order to speed up the writes, solid-state disks erase flash cells occupied with deleted information in background. When the system needs to write anything on the disk, the write operation then has enough empty cells to complete quickly.
How does the disk know a particular sector becomes available? The operating system tells the drive via the TRIM command. The TRIM command is issued every time the system deletes a file or formats a volume. The drive will then add released sectors into the garbage collection queue, wiping their content with zeroes slowly but inevitably.
Remember why data recovery works? Windows itself does not wipe or erase the content of a file being deleted, but simply marks its disk space available. Well, this is not the case with SSD drives anymore: SSD drives will wipe available disk sectors in just a few minutes after a file is deleted.
When SSDs Can Be Recovered
SSD recovery may still work if the TRIM command was not issued. This could be the case if any one (or more) of the following is true:
Old version of Windows. Windows versions before Vista did not support TRIM, so SSDs behave pretty much like magnetic hard drives, and can be recovered.
Corrupted data. In a case of corrupted data, damaged file system and similar things, the TRIM command is not issued, and the files remain recoverable.
External SSD drive. SSD drives connected via a USB, FireWire or Ethernet port do not support the TRIM command, and can be recovered with data recovery software.
RAID arrays. TRIM is not supported in RAID configurations.
File system other than NTFS. At this time, Windows only supports TRIM on NTFS-formatted SSD drives. If your SSD drive uses a different file system, the TRIM command is not issued, and the drive remains recoverable.
Tools for Recovering Data from SSD Drives
In order to recover information from an SSD drive, you can use data recovery tools such as Hetman Uneraser, Hetman Partition Recovery, or Hetman Photo Recovery depending on your exact needs. Try Hetman Uneraser if youre recovering from a healthy drive that has not been formatted or repartitioned. If you did format or repartition your SSD drive, or if you have an inaccessible device with corrupted file system, use Hetman Partition Recovery.
Cloud Storage and Online Services
Cloud storage systems are gaining popularity among all kinds of users. Online backups, online photo albums (Flickr, Picasa), online file sharing and online document processing (Google Docs) are all over the place.
They are great as “Desktop”, “Mobile phone” or “My Documents” backups, perfect as redundant storage, and absolutely irreplaceable for sharing information and socializing. However, cloud storage systems are not exactly great as your primary storage. In other words, if you want to replace a big hard drive with an Amazon cloud storage account take a second look.
Granted, cloud storage systems are not susceptible (or much less susceptible than single-hard-drive solutions) to hardware faults and virus attacks. They are usually quite redundant and have excellent self-backup facilities. Your data may be safe there for a while.
Relying exclusively onto a cloud-based storage means giving up complete control over your information. Your data will be subject to someone elses policies (which may change without notice). The amount of storage space available may be limited, while plans allowing larger than a single hard drives worth storage space may cost you more than the cost of a similarly sized hard drive, per month.
Finally, if you delete a file, or if your entire account is compromised and wiped by a hacker, there is no recourse. No data recovery tool can restore deleted information from the cloud. This is a classical case where data recovery tools do not help.
When Software Cant Help: SSD, Cloud and Online Services
In the first part of the article, we took a look at programs for recovering data from traditional hard drives. In this second part of the series “When Software Cant Help” well talk about flash-based (solid-state) storage, cloud storage systems and online storage services.
Solid-State Drives (SSD)
Solid-state drives are often used in place of traditional hard disks. SSD drives offer smaller capacities but much higher speed, especially when random access speed is concerned. With no moving parts, SSD drives are more robust mechanically. They can withstand higher shocks, which makes them particularly great for portable applications. Another laptop-friendly feature is a much lower power consumption compared to magnetic hard drives.
SSD drives do come with their share of issues affecting data loss and data recovery situations. These issues are highly dependent on the ways SSD drives record information. With SSD drives, recovering a file deleted a few minutes ago is far from a given. Same goes for formatted disks; however surprisingly, corrupted SSDs may be recovered just as well as traditional hard drives. But lets elaborate.
Why Recovering Deleted Files from SSD Drives May Not Work
All fairly recent SSD drives implement a special set of procedures allowing them to optimize their writing performance. These procedures include background garbage collection and TRIM.
Why do SSD drives need garbage collections and magnetic hard disks dont? Because flash chips have much faster clear writes compared to erase-then-write times. In other words, flash cells that contain information need to be erased (emptied) before new information can be written in, and that erase process is very slow compared to plain write operation. In order to speed up the writes, solid-state disks erase flash cells occupied with deleted information in background. When the system needs to write anything on the disk, the write operation then has enough empty cells to complete quickly.
How does the disk know a particular sector becomes available? The operating system tells the drive via the TRIM command. The TRIM command is issued every time the system deletes a file or formats a volume. The drive will then add released sectors into the garbage collection queue, wiping their content with zeroes slowly but inevitably.
Remember why data recovery works? Windows itself does not wipe or erase the content of a file being deleted, but simply marks its disk space available. Well, this is not the case with SSD drives anymore: SSD drives will wipe available disk sectors in just a few minutes after a file is deleted.
When SSDs Can Be Recovered
SSD recovery may still work if the TRIM command was not issued. This could be the case if any one (or more) of the following is true:
Old version of Windows. Windows versions before Vista did not support TRIM, so SSDs behave pretty much like magnetic hard drives, and can be recovered.
Corrupted data. In a case of corrupted data, damaged file system and similar things, the TRIM command is not issued, and the files remain recoverable.
External SSD drive. SSD drives connected via a USB, FireWire or Ethernet port do not support the TRIM command, and can be recovered with data recovery software.
RAID arrays. TRIM is not supported in RAID configurations.
File system other than NTFS. At this time, Windows only supports TRIM on NTFS-formatted SSD drives. If your SSD drive uses a different file system, the TRIM command is not issued, and the drive remains recoverable.
Tools for Recovering Data from SSD Drives
In order to recover information from an SSD drive, you can use data recovery tools such as Hetman Uneraser, Hetman Partition Recovery, or Hetman Photo Recovery depending on your exact needs. Try Hetman Uneraser if youre recovering from a healthy drive that has not been formatted or repartitioned. If you did format or repartition your SSD drive, or if you have an inaccessible device with corrupted file system, use Hetman Partition Recovery.
Cloud Storage and Online Services
Cloud storage systems are gaining popularity among all kinds of users. Online backups, online photo albums (Flickr, Picasa), online file sharing and online document processing (Google Docs) are all over the place.
They are great as “Desktop”, “Mobile phone” or “My Documents” backups, perfect as redundant storage, and absolutely irreplaceable for sharing information and socializing. However, cloud storage systems are not exactly great as your primary storage. In other words, if you want to replace a big hard drive with an Amazon cloud storage account take a second look.
Granted, cloud storage systems are not susceptible (or much less susceptible than single-hard-drive solutions) to hardware faults and virus attacks. They are usually quite redundant and have excellent self-backup facilities. Your data may be safe there for a while.
Relying exclusively onto a cloud-based storage means giving up complete control over your information. Your data will be subject to someone elses policies (which may change without notice). The amount of storage space available may be limited, while plans allowing larger than a single hard drives worth storage space may cost you more than the cost of a similarly sized hard drive, per month.
Finally, if you delete a file, or if your entire account is compromised and wiped by a hacker, there is no recourse. No data recovery tool can restore deleted information from the cloud. This is a classical case where data recovery tools do not help.