SSL : Generating Single or Wildcard SSL CSR

** Must install OpenSSL on your system1. Single-name SSL Certificates# openssl req -new -newkey rsa:2048 -nodes -keyout abc.com.key -out abc.com.csr After pressing enter, you’ll be prompted with the following:- Country Name (2 letter code) : Use your 2 char country code - State or Province Name (full name) : Use your current State - Locality Name (eg, city): City name- Organization Name (eg, company)...

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Letsencrypt : Generate Let’s Encrypt Wildcard SSL Certificate

1.Install Let’s Encrypt Certbot Tool#sudo apt-get OR dnf install letsencrypt2.Generate Let’s Encrypt Wildcard SSL Certificate#sudo certbot certonly --manual --preferred-challenges=dns --email webmaster@example.com --server https://acme-v02.api.letsencrypt.org/directory --agree-tos -d example.com  -d *.example.com 3.Certificates are generated and can be downloaded from the following path#/etc/letsencrypt/live/example.com/4.Generate...

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Generate a CSR (Certificate Signing Request) in Linux

1.Issue the following command to generate a CSR and the key that will protect your certificate.#openssl req -new -newkey rsa:2048 -nodes -keyout example.com.key -out example.com.csr2. After creating CSR, view the contents of the file using a cat#cat example.com.csr#cat example.com.key source: https://www.tecmint.com/generate-csr-certificate-signing-request-in-linux/...

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SSL : RSA server certificate CommonName (CN) `abc.com.my' does NOT match server name!?

Issue :    [warn] RSA server certificate CommonName (CN) `abc.com.my' does NOT match server name!? Resolve: Edit Apace SSL file : /etc/httpd/conf.d/ssl.conf  Change line # SSL Engine Switch from ON to OFF - SSLEngine off...

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SSL : Disable SSL on Webmin

1. Edit /etc/webmin/miniserv.conf 2. Change value of "ssl" entry from 1 to  0 ssl=1 (enable) ssl=0 (disable) 3. Restart webmin services # /etc/init.d/webmin restart 4. Restart apache services # /etc/init.d/httpd rest...

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Letsencrypt : Secure Apache on Virtualmin

The guide : FOLDER DOMAIN : In virtualmin directory FULL DOMAIN: www.example.com 1. First install Let's Encrypt script/programme Login to SSH and get root privileges (root/sudo -i): cd /home/<FOLDER DOMAIN>/ && git clone https://github.com/letsencrypt/letsencrypt OR cd /root/ && git clone https://github.com/letsencrypt/letsencrypt * This will download the Let's Encrypt...

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