I am trying to add the IP addresses of Site24x7 servers to AWS security group(outbound from On-Premise Poller to Site24x7 servers).
AWS security groups are not allowed to add DNS names(Only IP addresses).
So how can I know all IP addresses (or ranges (CIDRs)) of the Site24x7 servers that the On-Premise poller may communicate with?
The following DNS records have been searched by nslookup / dig.
dms.zoho.com: 8.39.54.136
plus.site24x7.com: 204.141.43.62
plus2.site24x7.com: 8.40.222.226