The Basic Anti-Virus, Advanced, and Enterprise editions of Security Center provide the web tamper proofing feature to protect your websites.
Prerequisites
- If you use the Security Center Basic edition and want to use the web tamper proofing feature, you must upgrade Security Center to the Basic Anti-Virus, Advanced, or Enterprise edition.
- The web tamper proofing feature supports Windows 32-bit, Windows 64-bit, and Linux 64-bit. If you use an operating system that is supported by this feature, the directories, the file sizes, and the number of files that can be protected are not limited. For more information about the supported system and kernel versions, see Versions of operating systems and kernels supported by tamper protection. For an operating system that is not supported by this feature, limits are imposed on the directories and files that can be protected. For more information, see Limits.
- Before you use the web tamper proofing feature, make sure that you have sufficient
licenses under your account. One license allows you to enable this feature for one
server. The number of used licenses equals the number of servers for which this feature
is enabled. In the upper-right corner of the Tamper Protection page, you can view the total licenses, used licenses, and license expiration date.
The expiration date of a web tamper proofing license is the same as that of Security
Center. You can purchase additional licenses as needed. For more information, see Purchase licenses.
Background information
- After you purchase sufficient web tamper proofing licenses, you can enable this feature for servers and directories as needed.
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Tamper protection does not take effect immediately after you configure the protected directory, and you can still write files to the directory. In this case, you must go to the Management page, disable Protection for the server where the directory is located, and then enable Protection again.
Note For more information about how to turn on Protection, see 9.
Limits
- For each server, you can enable the web tamper proofing feature for a maximum of 10 directories.
- Limits on the directories that you want to protect in Windows and Linux systems are
the same.
- The maximum size of a directory is 20 GB.
- The maximum number of folders in a directory is 20,000.
- The maximum number of directory levels is 20.
- The maximum size of a file is 20 GB.
- If no licenses are available, you cannot enable the web tamper proofing feature for a new server. If a server no longer requires this feature, you can turn off Protection to release the license. You can use the released license to enable this feature for a new server.
- Limits on the directories, the file sizes, and the number of files that can be protected are applicable only to the servers whose operating system and kernel versions are not supported by this feature. For more information about the supported system and kernel versions, see Versions of operating systems and kernels supported by tamper protection.
- Before you enable the web tamper proofing feature, make sure that the directory level, number of folders, and directory size meet the preceding requirements.
- We recommend that you exclude file formats that do not require protection, such as LOG, PNG, JPG, MP4, AVI, and MP3. Separate multiple file formats with semicolons (;).
Procedure
What to do next

Tamper protection does not take effect immediately after you configure the protected directory, and you can still write files to the directory. In this case, you must go to the Management page, disable Protection for the server where the directory is located, and then enable Protection again.
Web tamper proofing states
State | Description | Suggestion |
---|---|---|
Initializing | The web tamper proofing is being initialized. | If this is the first time you enable this feature for a server, the status of the server is Initializing. It requires a few seconds to enable this feature. |
Running | The web tamper proofing feature is enabled and running as expected. | None. |
Exception | An error occurred when you enable the web tamper proofing feature. | Move the pointer over Exception, view the causes, and then click Retry. |
Not Initiated | The web tamper proofing feature is disabled. | To enable this feature for a server, you must turn on Protection. |