Differences

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--- linux_hardening_guide:sysctl [2025/05/31 15:17] – peter
+++ linux_hardening_guide:sysctl [2025/05/31 15:19] (current) – peter
@@ Line 191: / Line 191: @@
 These enable source validation of packets received from all interfaces of the machine.
-  * This protects against IP spoofing, in which an attacker sends a packet with a fraudulent IP address.
+  * This protects against [[https://en.wikipedia.org/wiki/IP_address_spoofing|IP spoofing]], in which an attacker sends a packet with a fraudulent IP address.
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@@ Line 206: / Line 206: @@
 </code>
-These disable ICMP redirect acceptance and sending to prevent man-in-the-middle attacks and minimize information disclosure.
+These disable ICMP redirect acceptance and sending to prevent [[https://askubuntu.com/questions/118273/what-are-icmp-redirects-and-should-they-be-blocked|man-in-the-middle attacks]] and minimize information disclosure.
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