I'm running NGinx 1.6.2 with Magento 18.104.22.168 - just wanted to install SMTP Pro Email via the Connect/Mag Downloader webinterface and it got till:
Checking dependencies of packages
Starting to download ASchroder_SMTPPro-2.0.6.tgz ...
...done: 32,911 bytes
Then I checked the frontpage after a couple of minutes because I thought there was a problem and I get now everywhere:
Service Temporarily Unavailable The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
There are no logfiles written (/var/log/ is empty) and I don't see anything in the NGinx error - just a 200 in the NGinx access log.
I checked all directories for leftovers from the SMTP extension but nothing has actually been written so far.
I emptied the cache in /var/cache but nothing changes either.
My question: What happens before the download of an extension finished or is being extracted? Maybe via that way I could figure out how to get my shop back? Or does anybody know where to digg?