REGEX DEFENDER FIREWALL
Regex Defender: The Security Firewall
Configure regular expression rules to repel cyber attacks and block network traffic threats.
Control Console
Write a regex (with the g flag enabled) to find all valid IPv4 addresses in the log. An IPv4 address is formed by four numbers (1 to 3 digits each) separated by dots (e.g. 192.168.1.1 or 10.0.0.254, but not 1234.56.78.9 or 192.168.1.1111). Use word boundaries \b to avoid partial matches.
Network Analyzer
ACTIVEIP ADDRESSSTATUS
192.168.1.1BLOCKED
10.0.0.254BLOCKED
1234.56.78.9BLOCKED
127.0.0.1FORWARDED
Rate: 100% securedv1.2.6
Validation Console
Write and execute regex rules for the firewall.
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Analyzing network traffic...