QNAP Systems Ts 253 User Guide

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Antivirus 
 
Configure antivirus features on this page.  
 
 
Overview 
 
Antivirus: Use the antivirus to scan the NAS manually or on recurring schedules. It will 
delete, quarantine, or report files infected by viruses, malware, Trojans, and other 
malicious threats. To use this feature, select Enable antivirus and click Apply. 
Update: Select Check and update automatically and specify the intervals in days to 
automatically update the antivirus definitions. Click Update Now to check for new 
antivirus definitions and to update if necessary. Users can also download updated 
definitions from http://www.clamav.net and manually update the antivirus definitions. 
The NAS must be connected to the Internet to use this feature. 
Quarantine: View the quarantine information of the disk volumes on the NAS. For more 
details, go to Applications > Antivirus > Quarantine. 
 
Note: The antivirus engine selector next to the Enable antivirus checkbox is only available after 
an additional antivirus App has been installed from the App Center.    
 
  
						

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Scan Jobs 
 
The NAS supports manual and scheduled scanning of all or specific shared folders. Up to 64 
schedules can be created and up to 5 scan jobs can run concurrently. To create a scan job, 
follow these steps. 
1. Go to Applications > Antivirus > Scan Jobs. Click Add a Scan Job. 
2. Enter the job name and select the shared folders to scan. To scan a specific shared folder, 
select the share and click Add. 
3. Multiple shared folders can be selected. To remove a shared folder, click the Delete (X) 
button next to the share name and click Next. Define the scan job schedule and click 
Next. 
4. Select to scan all the files in the shared folder(s) or quick scan to scan only potentially 
dangerous files. Select Exclude files or folders and specify a file, a folder, or a file 
extension to be excluded from the virus scan and click Next. Separate each entry with 
a space in the same line or enter one entry per line. For example:  
o /Public/testfile.txt 
o /Download 
o *.log 
o *.exe *.com 
o *.txt; click Next.  
5. Enable other scan options and click Next: 
o Specify the maximum file size (1-4096 MB) allowed for scanning. 
o Enable Scan compressed files to include these files in shared folders. Specify the 
maximum amount of data (1-4096 MB) in a compressed file for scanning (if 
applicable).  
o The maximum file size and maximum compressed file size may vary based on the NAS 
model and available memory. 
o To scan MS Office and Mac Office files, RTF, PDF, and HTML files, select Deep scan for 
document files. 
6. Specify the actions to take when infected files are discovered and click Finish to create 
the scan job.  
o Only report the virus: The virus scan reports are recorded under the Reports tab. No 
actions will be taken for the infected files. 
o Move infected files to quarantine: The infected files will be quarantined and cannot be 
accessed from their original shared folders. Users can view the virus scan reports 
under the Reports tab and delete/restore the infected files under the Quarantine 
tab. 
o Delete infected files automatically: Infected files will be deleted and cannot be 
recovered.   
						

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o To receive an alert email when an infected file is found or after scanning has 
completed, configure the SMTP server settings in System Settings > Notification > 
SMTP Server.  
7. The scan job will run according to its schedule. 
Button Name Description 
 Run Run the scan job now. 
 Stop Stop the scan job. 
 Edit Edit the scan job settings. 
 View last 
run log 
Open the last virus scan summary.  
 Delete Delete the scan job. 
 
Reports 
 
View or download the reports of the latest scan jobs on the NAS. 
Button Name Description 
 Download Download the virus scan report. The file can be opened by 
any text editor. 
 Delete Delete an entry on the list. 
DOWNLOAD Download 
All 
Download all the virus scan logs on the list as a zip file. 
 
Report options 
Specify the number of days (1-999) to retain the logs 
Enable the option Archive logs after expiration and specify the shared folder to save 
the logs to once the retention period has been reached. Click Apply All to save the 
changes. 
 
Quarantine 
 
This page shows the quarantined files on the NAS. Users can manually delete or restore 
quarantined files, or restore and add the files to the exclude list. 
 
  
						

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Button Name Description 
 Delete Delete an infected file. The file cannot be recovered. 
 Restore Restore an infected file to its original shared folder. 
 Exclude List Restore an infected file and add the file into the exclude 
list (scan filter). 
Restore 
Selected 
Files 
Restore Selected 
Files 
Restore multiple files on the list. 
Delete 
Selected 
Files 
Delete Selected 
Files 
Delete multiple files on the list. The files cannot be 
recovered. 
Delete All 
Files 
Delete All Files Delete all of the files on the list. The files cannot be 
recovered.  
						

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Backup Station 
 
Configure the NAS as a backup server, remote replication, cloud backup and external backup with the 
Backup Station. 
 
 
For details on the features, please refer to the following links: 
Backup Server 
Remote Replication 
Snapshot Replica 
Cloud Backup 
External Backup 
 
Note: Snapshots and related features are currently only available for the following NAS series: 
x51*, x53, x63, x70, x71, x79, x80. 
* A minimum of 4 GB RAM is required to use snapshots. 
* x51 series models only support up to 256 snapshots instead of 1024. The HS-251 does not 
support snapshots.  
						

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Backup Server 
 
 
Rsync Server 
 
 
 
Enable Rsync server to configure the NAS as a backup server for data backup from a remote 
Rsync server or NAS server. The default port number for remote replication via Rsync is 873. 
Specify the maximum download rate for bandwidth control. 0 means unlimited. 
Enable backup from a remote server to the local host: Select this option to allow 
data backup from a remote server (NAS) to the local server (NAS). 
Allow remote Rsync server to back up data to the NAS: Select this option to allow 
data backup from an Rsync server to the local server (NAS). Enter the username and 
password to authenticate the Rsync server which attempts to back up data to the NAS.  
 
Note: You can only create up to 64 rsync jobs on the NAS. 
 
 
 
 
 
 
 
  
						

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RTRR Server 
 
 
 
To allow real-time or schedule data replication from a remote server to a local NAS, select 
Enable Real-time Remote Replication Server. You can specify the port number for remote 
replication. The default port number is 8899. Specify the maximum upload and download 
rate for bandwidth control. 0 means unlimited. To only allow authenticated access to back 
up data to the local NAS, specify the access password. The client server will be prompted to 
enter the password to back up data to the NAS via RTRR. 
 
You can specify the IP addresses or host names which are allowed to access the NAS for 
remote replication. Up to 10 rules can be configured. To allow all connections, select Allow 
all connections. To specify IP addresses or host names, select Allow connections from the 
list only and click Add. 
 
Enter an IP address or specify a range of IP addresses by entering the IP and subnet mask. 
Select the access right Read Only or Read/Write. By selecting Read/Write, the client 
server is allowed to delete files on the local NAS. Click Finish to exit. After saving the 
access rule, click Apply and the NAS will restart to apply the settings. 
 
Check backup jobs from other NAS  
You can check and manage backup jobs from other NAS that use the current NAS as a 
target destination for their backup. To check backup jobs, click the Incoming List tab and 
the details (including the job name, source NAS, destination NAS, job schedule and job 
status) of the backup jobs will be shown in the list. You can also manage backup jobs in this 
list. To do so, select backup jobs under Incoming List > choose to clear job records, open 
the backup folder, or deny access of the backup jobs to your NAS. 
  
						

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Time Machine 
 
You can enable Time Machine support to use the NAS as a backup destination for Macs by 
the Time Machine feature on OS X.  
 
 
To use this function, follow these steps. 
 
Configure the settings on the NAS: 
1. Go to “Main Menu” > “Backup Station” > “Backup Server” > “Time Machine” > “Time 
Machine Support”. Select “Enable Time Machine support”. 
2. Enter the Time Machine password. The password is empty by default.  
3. Select a volume on the NAS as the backup destination. 
4. Enter the storage capacity that Time Machine backup is allowed to use. The maximum 
value is 4095GB, 0 means unlimited. 
5. Click Apply to save the settings. 
6. Optional: Enable SMB 3.0 on Time Machine. 
Note: Mac OS Sierra is required. 
i. Go to “Control Panel” > “Win/Mac/NFS” > “Microsoft Networking” > “Advanced 
Options”. The Advanced Options window will launch. 
ii. Select “SMB 3.0” in “Highest SMB version”. 
 
All the Time Machine users share the same shared folder for this function. Configure the 
backup settings on Mac: 
1. Open Time Machine on your Mac and click Select Backup Disk. 
2. Select the TMBackup on your NAS from the list and click Use for Backup. 
3. Enter the username and password to login to the NAS and click Connect. 
o Registered username: TimeMachine  
						

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o Password: The password you have configured on the NAS. It is empty by default. 
4. Upon successful connection, the Time Machine is switched ON. The available space for 
backup is shown and the backup will start in 120 seconds. 
 
The first backup may take more time according to the data size on the Mac. To recover data 
to the Mac OS, please see a tutorial on http://www.apple.com. 
 
Managing Backup 
 
You can manage existing backups on this page. 
Volume (drop down menu on top right side of the screen): Display Time Machine backup 
tasks stored in the volume. 
Name: The name of the Time Machine backup (the sparse bundle disk image which was 
created by Time Machine.) 
Size: Size of this Time Machine backup. 
Date Modified: Last modified date of this Time Machine backup. 
Delete: Delete the selected Time Machine backup.  
						

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Remote Replication 
 
This chapter covers the following topics: 
NAS to NAS and Rsync  
RTRR  
Downloading Replication Job Logs 
 
Note: Starting from QTS 4.2, if a source storage pool supports snapshots, a snapshot will 
be taken before an Rsync or RTRR backup job starts to ensure data consistency. Please 
check that there is enough space reserved for taking snapshots before creating the job.    
 
NAS to NAS and Rsync  
 
The NAS data can be backed up to a remote NAS or Rsync server using Rsync remote replication.  
 
For Rsync and NAS to NAS, there is no limitation for the maximum number of jobs. However, the 
actual result will be limited and affected by the size of NAS memory and the file structure. Each job 
supports 1 folder pair. 
 
 
If the backup destination is a NAS, go to Main Menu > Backup Station > Rsync Server and 
enable the remote NAS as an Rsync backup server. 
1. To create a replication job, click Create a Replication Job. 
2. Click “Settings”.