Applying a generated certificate on web server

Configuring Certificate for Renewal

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Login to nagios.apoyar

Copy b2b.bleckmann.com.key file to nagios from phobos.apoyar

• scp neal@phobos:/home/neal/b2b.bleckmann.com.key ./

Note:- If getting error while copying, need to change permission of that file on phobos.apoyar

• chmod 444 b2b.bleckmann.com.key

then copy same key file to returns server (bleckmann live)

• scp b2b.bleckmann.com.key returns@10.208.192.174:/home/returns/

After this move crt file from returns server to nagios and then to phobos using below commands

• scp returns@10.208.192.174:/home/returns/b2b.bleckmann.com.crt ./

• scp b2b.bleckmann.com.crt neal@phobos:/home/neal/

Login to phobos.apoyar

Now, we have crt, csr and key at /home/neal/certs/ on phobos.apoyar

Now go to

• cd /home/neal/certs/generated/bleckmann

move all three files here

• mv /home/neal/certs/b2b.blecmann.com* ./

and then remove key file from nagios

Now, login to returns server

Compare crt and key file with below command

• openssl x509 -noout -modulus -in b2b.bleckmann.com.crt | openssl md5 && openssl rsa -noout -modulus -in b2b.bleckmann.com.key | openssl md5

Now, move crt & key to below path

• mv b2b.blecmann.com.crt /etc/ssl/certs/

• mv b2b.blecmann.com.key /etc/ssl/private/

Note:- If getting error while moving either crt or key, check for owner and permission and change if needed with below commands

• chown root:root filename

• chmod 400 filename

Then go to

• Cd /etc/nginx/sites-available

Here, search for website configuration file with below command

• grep –rmv ‘/etc/nginx/sites-available/’ –e ‘b2b.bleckmann.com’

then edit that conf file

• vi b2b.conf

change crt and key file path in conf file

save and exit file

• :wq!

Note:- Repeat above steps of editing .conf file, if we have multiple domains

Then check for any errors with below command

• nginx –t

and then reload nginx (DON’T RESTART)

• systemctl reload nginx

At last, browse websites and verify those padlocks and certificate information