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Matches found for tag 'Internet': 4

Prevent IP address spoofing using Reverse path filtering

15 June 2023 Updated 15 June 2023 by Peter

Setting kernel parameter rp_filter=1 also prevents fail2ban from blocking legitimate IP addresses.

Collect and block IP addresses with ipset and Python

21 May 2023 Updated 21 May 2023 by Peter

And once we have a list of IP addresses, we can analyze them with IP2Location and whois

Prevent sending duplicate messages to a remote system

21 February 2023 Updated 21 February 2023 by Peter

Consideration of all possible states, and conditions, is not desirable but a requirement.

Why your website canonical name must be 'www' (or 'app' or something else)

27 November 2020 Updated 27 November 2020 by Peter

A website URL starting with 'www' prevents visitor data (cookies) being send to unintended destinations.

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