SonicWALL TZ 190 Manuale Utente

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Security Services > Gateway Anti-Virus
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SonicOS Enhanced 4.0 Administrator Guide
SonicWALL GAV delivers threat protection directly on the SonicWALL security appliance by 
matching downloaded or e-mailed files against an extensive and dynamically updated database 
of threat virus signatures. Virus attacks are caught and suppressed before they travel to 
desktops. New signatures are created and added to the database by a combination of 
SonicWALL’s SonicAlert Team, third-party virus analysts, open source developers and other 
sources.
SonicWALL GAV can be configured to protect against internal threats as well as those 
originating outside the network. It operates over a multitude of protocols including SMTP, 
POP3, IMAP, HTTP, FTP, NetBIOS, instant messaging and peer-to-peer applications and 
dozens of other stream-based protocols, to provide administrators with comprehensive network 
threat prevention and control. Because files containing malicious code and viruses can also be 
compressed and therefore inaccessible to conventional anti-virus solutions, SonicWALL GAV 
integrates advanced decompression technology that automatically decompresses and scans 
files on a per packet basis.
SonicWALL GAV Multi-Layered Approach
SonicWALL GAV delivers comprehensive, multi-layered anti-virus protection for networks at the 
desktop, the network, and at remote sites. SonicWALL GAV enforces anti-virus policies at the 
gateway to ensure all users have the latest updates and monitors files as they come into the 
network.
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