i have a question about service layer in datacenter
as i see, servers that want to get services to Internet (out of DC block) placed in service layer and behind the WAF/IDS/IPS, and other servers that just get service to DC block, placed in Access (server farm) layer.
tell me plz, this type of design is accurate or not?
because i heard, all servers should stay in Access (server farm) layer and those should get service to Internet (out of DC block), should be place behind another firewall.
Your understanding is correct. In a typical Datacenter design, all the devices that need access to the Internet or any external networks must be placed inside the Demilitarized zone (DMZ), which is a seperate layer constructed in-between the Datacenter LAN and public/external networks.
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