I'm in the process of migrating a site to a new server. we're not ready to move email yet, so ideally i would like to just move web traffic at this time. i would like to be able to do this without changing the nameservers with the domain's registrar at this time.
which records to i need to manipulate in order to do this?
can i just change the A record for domain.com to point to a new IP and this won't impact the current email or do i need to move the entire site?
My biggest concern right now is impacting email by moving the everything to the new server.
In order to divert the web traffic, you can change the A record for the domain to point to the new server.
To retain email on the old server, change the MX record to 'mail.domain.com' instead of 'domain.com' as domain.com itself would be pointing to the new server.
Make sure that the A record for the sub-domain 'mail' is pointing to the old server.