Figuring Out How Much Memory a Name Server Will Need

5.2.1 Problem

You need to figure out how much memory a name server will require.

5.2.2 Solution

While this answer may seem like a cop-out, the only sure-fire way to determine how much memory a name server will need is to configure it, start it, and then monitor it using a tool like top. After a week or so, the size of the named process should stabilize, and you'll know how much memory it needs.

5.2.3 Discussion

The reason it's so difficult to calculate how much memory a name server requires is that there are so many variables involved. The size of the named executable varies on different operating systems and hardware architectures. Zones have a unique mix of records. Zone data files may use lots of shortcuts (e.g., leaving out the origin, or even using a $GENERATE control statement) or none at all. The resolvers that use the name server may send a huge volume of queries, causing the name server's cache to swell, or may send just sporadic queries.

5.2.4 See Also

The BIND 9 ARM, section 2.3.

Getting Started

Zone Data

BIND Name Server Configuration

Electronic Mail

BIND Name Server Operations

Delegation and Registration

Security

Interoperability and Upgrading

Resolvers and Programming

Logging and Troubleshooting

IPv6



DNS & BIND Cookbook
DNS & BIND Cookbook
ISBN: 0596004109
EAN: 2147483647
Year: 2005
Pages: 220
Authors: Cricket Liu

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