COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Regeneration expired
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Regular expression
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Regex expired
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Regeneration expression
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Registration expression
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Detailed explanation-1: -L7 uses regular expressions to investigate the content within an individual connection. Regular expression is text string for describing a search pattern. Searching examples: “hello” messages such as “220 ftp server ready", “* ok", or “HTTP/1.1 200 ok".
Detailed explanation-2: -layer7-protocol is a method of searching for patterns in ICMP/TCP/UDP streams. Note: The L7 matcher is very resource intensive. Use this feature only for very specific traffic. It is not recommended to use L7 matcher for generic traffic, such as for blocking webpages.
Detailed explanation-3: -Regular Expressions (regex for short) are used often for BGP route manipulation or filtering. In this lesson, we’ll take a look at some useful regular expressions.
Detailed explanation-4: -Regexes are routinely used in the cybersecurity world by: Analysts searching logs and other large data files. Data scientists massaging input data files so they can be ingested into machine learning models. Developers validating input fields and so on.