I noticed my Amazon S3 backups weren’t running lately using backwpup for wordpress.
Took a little digging, but I had to take the certificate verification out of the amazon aws php api.
wp-content/plugins/backwpup/libs/aws/lib/requestcore/requestcore.class.php: Commented out line 614:
//curl_setopt($curl_handle, CURLOPT_TIMEOUT, 5184000);
Changed line 624 and 625 to false:
curl_setopt($curl_handle, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($curl_handle, CURLOPT_SSL_VERIFYHOST, false);
Ended up working great after that.
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