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Outgoing IPs & Ports for WordPress

I recently locked down all outgoing connections from my DMZ to the internet and now have to open things explicitly in my packet filter. For wordpress I did not find any documentation on that, so here are my findings to be able to update plugins and themes (I don’t care about the RSS feed on the dashboard):

IP Port(s) Description 80 (HTTP) & 443 (HTTPS) downloads.wordpress.org 80 (HTTP) & 443 (HTTPS) api.wordpress.org 80 (HTTP) & 443 (HTTPS) api.akismet.com 80 (HTTP) & 443 (HTTPS) api.akismet.com