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Add --dhcp-ttl option.

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Simon Kelley
2016-02-24 21:24:45 +00:00
parent df3d54f776
commit 832e47beab
4 changed files with 17 additions and 5 deletions
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man/dnsmasq.8
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@@ -60,7 +60,7 @@ in the same way as for DHCP-derived names. Note that this does not
apply to domain names in cnames, PTR records, TXT records etc.
.TP
.B \-T, --local-ttl=<time>
When replying with information from /etc/hosts or the DHCP leases
When replying with information from /etc/hosts or configuration or the DHCP leases
file dnsmasq by default sets the time-to-live field to zero, meaning
that the requester should not itself cache the information. This is
the correct thing to do in almost all situations. This option allows a
@@ -68,6 +68,9 @@ time-to-live (in seconds) to be given for these replies. This will
reduce the load on the server at the expense of clients using stale
data under some circumstances.
.TP
.B --dhcp-ttl=<time>
As for --local-ttl, but affects only replies with information from DHCP leases. If both are given, --dhcp-ttl applies for DHCP information, and --local-ttl for others. Setting this to zero eliminates the effect of --local-ttl for DHCP.
.TP
.B --neg-ttl=<time>
Negative replies from upstream servers normally contain time-to-live
information in SOA records which dnsmasq uses for caching. If the