I am using Squid for caching with Apache and MediaWiki over HTTPS only. Unfortunately, no pages are being cached; each request is being sent from Squid to Apache. I would appreciate help figuring out how to get caching to work.
My configuration is as follows:
- Squid is configured to listen on <external ip>:443 for HTTPS requests and forwards them to Apache on port 8080
https_port <external ip>:443 cert=<path to cert> key=<path to key> defaultsite=<server name> vhost
cache_peer 127.0.0.1 parent 8080 no-query originserver login=PASS
- Squid also listens on 127.0.0.1:80 for PURGE requests from MediaWiki because I could not figure out how to configure MediaWiki to send PURGE requests with HTTPS
http_port 127.0.0.1:80 defaultsite=<server name> vhost
- Apache is listening on 127.0.0.1:8080 for requests from Squid
- Apache is also listening on <external ip>:80 which is set up as a permanent redirect to HTTPS
- MediaWiki is configured as follows:
$wgUseSquid = true;
$wgSquidServers = array('127.0.0.1'); // this is where PURGE requests are sent
$wgSquidServersNoPurge = array('<external ip>');
GET requests are being received by MediaWiki with Cache-Control: max-age=0 in the headers. The response sent by MediaWiki includes the following headers:
Cache-Control: s-maxage=18000, must-revalidate, max-age=0
X-Cache: MISS from <server name>
X-Cache-Lookup: HIT from <server name>:80
I am suspicious why the last line says port 80 rather than 8080, but I'm not sure if that is relevant.
Please let me know if there is an more relevant information that will help to troubleshoot this. Thank you in advance for your assistance!
Cindy
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