Basically, I was testing different versions of OpenSSL, and somewhere in the process broke wget's path to certificates. 

```
wget https://www.google.com 

```

Results now in:

```
ERROR: cannot verify www.google.com's certificate, issued by 'CN=Google Internet Authority G2,O=Google Inc,C=US':
Unable to locally verify the issuer's authority.
To connect to www.google.com insecurely, use `--no-check-certificate'.

```

Which makes me think that wget doesn't know where to look for certificates, as `ca-certificates` is installed and if I set `export SSL_CERT_DIR=/etc/ssl/certs` everything works until reboot.

How can I permanently fix this? I want to revert to the original state, where wget automatically knows where to check certificates.

I can probably set this export on boot, but what it the right place, where it originally was?

### Edit:

On another server, I've checked and there is no `SSL_CERT_DIR` variable in the environment, yet wget works correctly. How does wget knows where to look for certificates?