The SSL cerificate is about to expire, Where we have to upload the new cerificate/process

Our SSL cerificate is about to expire. Pl. let us know where we need to upload or copy the new cerificate and process document link.

See here:

https://help.sonatype.com/display/NXRM3/Configuring+SSL#ConfiguringSSL-ServingSSLDirectly

Rich