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Latest post by nicholas on Sunday, 18 September 2022 14:31 CDT
Hi Support,
We have a client that is accessing their website via IPv6. They login fine, but as soon as they attempt editing their website and saving their changes, the get blocked by Admin Tools. Based on the security exceptions, this seems to be stemming from an admin password issue despite them already being logged in.
Any ideas as to what's going on?
If their IPv6 address is changing on every request (or after a few requests) Joomla no longer considers the user as logged in — the login session is tied to the IP address Joomla sees.
IPv6 is a weird beast. Unlike IPv4, it's not determined entirely by the Internet Service Provider (ISP). Please read https://en.wikipedia.org/wiki/IPv6_address#Stateless_address_autoconfiguration for context, especially Address Lifetime and Temporary Addresses. If either the router or their local machine is misconfigured in a way which results in the IPv6 address being continuously rotated in a matter of seconds/minutes instead of in a matter of hours/days they have a very bad time trying to manage Joomla. Even without Admin Tools enabled they'd get kicked out of the administration interface due to their session being invalid. In fact, it's exactly because their session is invalidated that Admin Tools blocks them.
Nicholas K. Dionysopoulos
Lead Developer and Director
🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
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