Limiting the Size of the IXFR Log File

3.24.1 Problem

You want to limit the size of the incremental zone transfer (IXFR) log file.

3.24.2 Solution

Use the BIND 8 max-ixfr-log-size options substatement. For example, to limit the size of the IXFR log file to 100K, you'd use:

options {
 directory "/var/named";
 maintain-ixfr-base yes;
 max-ixfr-log-size 100k;
};

3.24.3 Discussion

Without a configured maximum size for the IXFR log file, a BIND 8 name server will trim the log once it exceeds 50% of the size of the corresponding zone data file. If your chosen maximum is higher than 50% of the size of the zone data file, your maximum will supersede the built-in limit.

Though it's documented earlier, max-ixfr-log-size doesn't work until BIND 8.2.1.

You won't need to do this at all with a BIND 9 name server. (In fact, BIND 9 name servers don't understand max-ixfr-log-size, so there's no point in trying.) A BIND 9 name server will automatically trim its journal file. Like the sticker says, "No user serviceable parts inside."

3.24.4 See Also

Section 3.23 for configuring IXFR on BIND 8 name servers and "Incremental Zone Transfer (IXFR)" in Chapter 10 of DNS and BIND.

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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