Showing posts with label SSL. Show all posts
Showing posts with label SSL. Show all posts

Monday, February 13, 2023

Create and Install Self-Signed SSL Certificate on CentOS

yum install openssl

mkdir /etc/[webserver]/ssl

openssl genrsa -out “/etc/[webserver]/ssl/example.key” 2048

openssl req -new -key “/etc/[webserver]/ssl/example.key” \ -out “/etc/[webserver]/ssl/example.csr”


Country Name (2 letter code) [AU]:xx

State or Province Name (full name) [Some-State]:xx xx

Locality Name (eg, city) []:xx

Organization Name (eg, company) [Internet Widgits Pty Ltd]:xx

Organizational Unit Name (eg, section) []:xx

Common Name (e.g. server FQDN or YOUR name) []:example.com

Email Address []:xxx@gmail.com

openssl x509 -req -days 365 -in “/etc/[webserver]/ssl/example.csr” \ -signkey “/etc/[webserver]/ssl/example.key” \ -out “/etc/[webserver]/ssl/example.crt”


Friday, October 21, 2022

How To Make secured Nginx with Let's Encrypt on Ubuntu

 Installing Certbot:

sudo apt install certbot python3-certbot-nginx

Confirming Nginx’s Configuration:

sudo nano /etc/nginx/sites-available/example.com

sudo nginx -t

sudo systemctl reload 


Allowing HTTPS Through the Firewall:

sudo ufw status

sudo ufw allow 'Nginx Full'

sudo ufw delete allow 'Nginx HTTP'

sudo ufw status


Obtaining an SSL Certificate:

sudo certbot --nginx -d example.com -d www.example.com



 Verifying Certbot Auto-Renewal:

 sudo systemctl status certbot.timer

 sudo certbot renew --dry-run

Monday, August 15, 2022

Fix Adding new SSL virtual website .. .. certificate authority file is not valid : Data does not start with line -----BEGIN CERTIFICATE-- in virtualmin


Open the file at /etc/webmin/virtual-server/domains/13694005276497

Delete including 4 lines pointing to the 4 certificate files: ssl.cert, ssl.combined, ssl.everything & ssl.key

Then re-add the ssl.

How to merge a branch to main branch in Github.

In Terminal or Command Prompt:  git checkout main  [switch to main branch] git pull origin main  [grab latest updates from main branch] git ...