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This article describes how to change the digital certificate used by your 4PSA DNS Manager 3 (or later version) HTTP server.


Before you start, make sure that the following requirements are met:

  • You have a 4PSA DNS Manager version higher than 3.0.0 (e.g. 4.0.0)
  • You have access and basic knowledge for using a SSH client (e.g. Putty)

Changing the Server's SSL certificate

To change the digital certificate used by your HTTP server, you have to create a signing request, send the request to your CA authority and then install the new certificate on your server:

STEP 1: Log in to your 4PSA DNS Manager server using your favorite SSH console (e.g. Putty).

STEP 2: Create the signing request for the certificate by executing the command:

openssl req -new -key /usr/local/dnsmanager/admin/conf/httpd.pem -out certrequest.csr

STEP 3: Send the certrequest.csr file to the CA authority of your choice (there are many vendors like GeoTrust, RapidSSL, Verisign, etc.).

STEP 4: After you receive the certificate, copy it on the server (in this example, the certificate will be temporarily stored in /root/newcert.pem).

STEP 5: Open the /usr/local/dnsmanager/admin/conf/httpd.pem file with your favorite text editor (e.g. NotePad++, jEdit) and remove the lines starting with:


and ending with:


STEP 6: Copy the new certificate by executing the command:

cat /root/newcert.pem >> /usr/local/dnsmanager/admin/conf/httpd.pem

STEP 7: Restart 4PSA DNS Manager HTTP server using:

/etc/init.d/dnsmanager restart

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