renew_cert/README.md

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# renew_cert
A shell script used to renew lets encrypt certificates
## CSR creation
### For only one domain
```
openssl req -nodes -newkey rsa:4096 -sha256 -keyout bulbizarre.swordarmor.fr.key -out bulbizarre.swordarmor.fr.csr
```
### For multiple domains
```
openssl req -new -sha512 -key ix.bzh.key -subj "/" -reqexts SAN -config < (cat /etc/ssl/openssl.cnf < (printf "[SAN]\nsubjectAltName=DNS:ix.bzh,DNS:www.ix.bzh")) > ix.bzh.csr
```
## Example of nginx configuration for the HTTP challenge
```
location /.well-known/acme-challenge/ {
alias /usr/local/www/le-challenges/.well-known/acme-challenge/;
try_files $uri $uri/ =404;
}
```