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-rw-r--r--plugin/bufsize/README.md13
1 files changed, 11 insertions, 2 deletions
diff --git a/plugin/bufsize/README.md b/plugin/bufsize/README.md
index bd1d232d1..297941059 100644
--- a/plugin/bufsize/README.md
+++ b/plugin/bufsize/README.md
@@ -16,6 +16,7 @@ The default value is 512, and the value must be within 512 - 4096.
Only one argument is acceptable, and it covers both IPv4 and IPv6.
## Examples
+Enable limiting the buffer size of outgoing query to the resolver (172.31.0.10):
```corefile
. {
bufsize 512
@@ -24,7 +25,15 @@ Only one argument is acceptable, and it covers both IPv4 and IPv6.
}
```
-If you run a resolver on 172.31.0.10, the buffer size of incoming query on the resolver will be set to 512 bytes.
+Enable limiting the buffer size as an authoritative nameserver:
+```corefile
+. {
+ bufsize 512
+ file db.example.org
+ log
+}
+```
## Considerations
-For now, if a client does not use EDNS, this plugin adds OPT RR. \ No newline at end of file
+- Setting 1232 bytes to bufsize may avoid fragmentation on the majority of networks in use today, but it depends on the MTU of the physical network links.
+- For now, if a client does not use EDNS, this plugin adds OPT RR. \ No newline at end of file