First off, I apologize if this query has been previously answered or contains a very noob error in my approach - SSL certification is still new to me! I’ve checked these forums thoroughly, but can’t seem to find a similar issue.
So… I have successfully installed a multi-domain certificate for several websites that I host using Certbot Auto on my Linux Apache (2.2.31) server via SSH. This was first installed a few months ago, and initially ran fine for around 6 weeks. Then one morning, all the sites began returning ‘Your connection is not secure’ screens. On checking the certificate using ‘certbot-auto certificates’, it still had 40+ days to run. After some initial panic, the problem was simply solved by reinstalling the certificate.
However, this now happens frequently: every two weeks or so. Reinstallation works every time however. This morning’s failure was after only 9 days. I cannot think what might be causing this - largely because I’m pretty inexperienced in this field! Here’s some circumstantial info:
- I’ve not yet set up a Cron job to renew the certificate, partly due to time, partly due to the fact that I feel I need to manually manage this at the moment! I’m not sure if this might be a potential cause?
- Most times I reinstall the certificate after a failure, certbot updates to a new version… would this have any effect on things?!
- There are currently four domains on the certificate (with both bare and ‘www’ variants - so 8 in total). Examples: https://www.antiquity.ac.uk; https://www.virtualststephens.org.uk
This issue is becoming problematic (and embarrassing for my clients), but after weeks of searching for solutions I still can’t find anything. Is there anything I can do to pin down exactly why the certificate is failing? Does certbot retain logs somewhere I can access?
Any help hugely appreciated - I’m a bit at sea here!