Describe caching servers.
What will be an ideal response?
Dedicated cache servers are available for larger networks. They reduce overall network traffic by caching frequently accessed information inside the local network, reducing requests that have to traverse outside. More commonly today, you'll find caching server functions as part of software services. Squid, for example, is a proxy and caching server that handles HTTP traffic, DNS, FTP, and more. You can deploy Squid on multiple servers and use the Cache Array Routing Protocol (CARP) to load balance among them all, optimizing network performance.
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