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Update README.md (#668)

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* Update README.md

Minor cosmetic fixes, including one broken comment in a sample Corefile.

* Fix verb tense
This commit is contained in:
cricketliu
2017-05-26 06:02:51 -07:00
committed by John Belamaric
parent d2268d3030
commit 2f2c90f391
1 changed files with 9 additions and 9 deletions
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18
middleware/reverse/README.md
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@@ -1,6 +1,6 @@
# reverse # reverse
The *reverse* middleware allows CoreDNS to respond dynamicly to an PTR request and the related A/AAAA request. The *reverse* middleware allows CoreDNS to respond dynamically to a PTR request and the related A/AAAA request.
## Syntax ## Syntax
@@ -12,27 +12,27 @@ reverse NETWORK... {
~~~ ~~~
* **NETWORK** one or more CIDR formatted networks to respond on. * **NETWORK** one or more CIDR formatted networks to respond on.
* `hostname` inject the IP and zone to an template for the hostname. Defaults to "ip-{IP}.{zone[1]}". See below for template. * `hostname` injects the IP and zone to a template for the hostname. Defaults to "ip-{IP}.{zone[1]}". See below for template.
* `ttl` defaults to 60 * `ttl` defaults to 60
* `fallthrough` If zone matches and no record can be generated, pass request to the next middleware. * `fallthrough` If zone matches and no record can be generated, pass request to the next middleware.
### Template Syntax ### Template Syntax
The template for the hostname is used for generating the PTR for an reverse lookup and matching the The template for the hostname is used for generating the PTR for a reverse lookup and matching the
forward lookup back to an IP. forward lookup back to an IP.
#### `{ip}` #### `{ip}`
The `{ip}` symbol is **required** to make reverse work. The `{ip}` symbol is **required** to make reverse work.
For IPv4 lookups the "." is replaced with an "-", i.e.: 10.1.1.1 results in "10-1-1-1" For IPv4 lookups the "." is replaced with a "-", e.g., 10.1.1.1 results in "10-1-1-1"
With IPv6 lookups the ":" is removed, and any zero ranged are expanded, i.e.: With IPv6 lookups the ":" is removed, and any zero ranged are expanded, e.g.,
"ffff::ffff" results in "ffff000000000000000000000000ffff" "ffff::ffff" results in "ffff000000000000000000000000ffff"
#### `{zone[i]}` #### `{zone[i]}`
The `{zone[i]}` symbol is **optional** and can be replaced by a fixed (zone) string. The `{zone[i]}` symbol is **optional** and can be replaced by a fixed (zone) string.
The zone will be matched by the zones listed in *this* configuration stanza. The zone will be matched by the zones listed in *this* configuration stanza.
`i` needs to be replaced to the index of the configured listener zones, starting with 1. `i` needs to be replaced with the index of the configured listener zones, starting with 1.
## Examples ## Examples
@@ -41,7 +41,7 @@ arpa compute.internal {
# proxy unmatched requests # proxy unmatched requests
proxy . 8.8.8.8 proxy . 8.8.8.8
# answer requests for IPs in this networks # answer requests for IPs in this network
# PTR 1.0.32.10.in-addr.arpa. 3600 ip-10-0-32-1.compute.internal. # PTR 1.0.32.10.in-addr.arpa. 3600 ip-10-0-32-1.compute.internal.
# A ip-10-0-32-1.compute.internal. 3600 10.0.32.1 # A ip-10-0-32-1.compute.internal. 3600 10.0.32.1
# v6 is also possible # v6 is also possible
@@ -53,8 +53,8 @@ arpa compute.internal {
ttl 3600 ttl 3600
# Forward unanswered or unmatched requests to proxy # without this flag, requesting A/AAAA # Forward unanswered or unmatched requests to proxy
records on compute.internal. will end here. # without this flag, requesting A/AAAA records on compute.internal. will end here.
fallthrough fallthrough
} }
} }