# Full Chain PFX File Creation Guide
## 1. CSR (Certificate Signing Request)
First, you need to create a CSR file. You can use OpenSSL for this process. The following command creates the CSR and private key using a 2048-bit RSA key:
Linux Bash Code
```
openssl req -new -newkey rsa:2048 -nodes -keyout privatekey.key -out myrequest.csr
```
**Windows CMD Code**
1. OpenSSLInstall (For example, Win64 OpenSSL).
2. Open Command Prompt and run the following command:
**Cmd Code**
```
openssl req -new -newkey rsa:2048 -nodes -keyout privatekey.key -out myrequest.csr
```
After running the command, you will be asked to enter your certificate information as follows:
**PlainText**
```
Country Name (2 letter code) [OTHER
State or Province Name (full name) [Some-State]:Istanbul
Locality Name (eg, city) []:Istanbul
Organization Name (eg, company) [Internet Widgits Pty Ltd]:My Company
Organizational Unit Name (eg, section) []:IT Department
Common Name (e.g. server FQDN or YOUR name) []:www.example.com
Email Address []:admin@example.com
Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:
```
Once these steps are completed, \`**privatekey.keyA** private key file named \` and \`**myrequest.csrA** CSR file named \` will be created.
***
## 2. Submitting the CSR File to the GlobalSign Certificate Authority (CA)
Send the CSR file you created to GlobalSign. GlobalSign will provide you with a certificate using your CSR file. After completing the GlobalSign checking processes, it will provide you with the necessary certificates.
***
## 3. Get Certificates
GlobalSign will provide you with the following files:
* Your own certificate (**example.com.crt**)
* Intermediate certificates (**intermediate1.crt, intermediate2.crt**)
* Root certificate (**root.crt**)
***
## 4. Merge Certificates
You need to combine all certificates into a single file. This can be done using the \`**cat**\` command:
**Linux Bash Code**
```
cat example.com.crt intermediate1.crt intermediate2.crt root.crt > fullchain.crt
```
This command returns all certificates to \`**fullchain.crt** Combines into a file named \`.
**Windows**
1. Open Notepad and follow these steps:
* **example.com.crt** copy and paste its contents.
* **intermediate1.crt, intermediate2.crt** ve **root.crt** copy and paste its contents sequentially.
* Combine all content **fullchain.crt** Save as.
2. Alternatively, **WindowsPowerShell** You can combine files using:
**Powershell**
```
Get-Content example.com.crt, intermediate1.crt, intermediate2.crt, root.crt | Set-Content fullchain.crt
```
***
## 5. Creating the PFX File
Using OpenSSL, create the **PFX** file using the private key and the merged certificate file:
**Linux Bash Code**
```
openssl pkcs12 -export -out fullchain.pfx -inkey privatekey.key -in fullchain.crt -certfile intermediate1.crt -certfile intermediate2.crt -certfile root.crt
```
**Windows**
Open Command Prompt and run the following command:
**Cmd**
```
openssl pkcs12 -export -out fullchain.pfx -inkey privatekey.key -in fullchain.crt -certfile intermediate1.crt -certfile intermediate2.crt -certfile root.crt
```
This command is \`**fullchain.pfx** Creates a PFX file named \`. You will be asked to enter a password when creating the PFX file. This password is used to secure the PFX file.
***
## 6. Verifying the PFX File
You can use the following command to verify that the PFX file you created was created correctly:
**Linux Bash Code**
```
openssl pkcs12 -info -in fullchain.pfx
```
**Windows Cmd Code**
Open Command Prompt and run the following command:
**Cmd**
```
openssl pkcs12 -info -in fullchain.pfx
```
{% hint style="danger" %}
This command displays the contents and information of the PFX file.
{% endhint %}
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