TTL value in SOA

NSD
1

I'm finding that the TTL value on all our zones is defaulting to 1h (3600) regardless of what figure is specified in in the SOA

i can override this by specifying a $TTL but NSD should pick up the last figure in the SOA as a TTL also (this is how it works int bind and I haven't seen anything to suggest NSD works differently) - anyone know why this isn't working?

regards
Liam.

2

no, it shouldn't. See RFC 2308 for the redefinition of the "minimum TTL"
field and introduction of $TTL.

-Peter

3

so in the absence of $TTL it is using 3600
do you know where it is getting this from - is it an NSD default?

Peter Koch wrote:

4

[Quoting Liam Kennedy, on Jul 20, 14:42, in "Re: TTL value in SOA ..."]

so in the absence of $TTL it is using 3600
do you know where it is getting this from - is it an NSD default?

Yes, it's deined in zonec.c:
  #define DEFAULT_TTL 3600

-- ted

5

a message of 27 lines which said:

do you know where it is getting this from - is it an NSD default?

Yes, in zonec.h:

#define DEFAULT_TTL 3600

6

yes, the zone compiler calls zone_open with a default of "3600" (strange
enough, that's not DEFAULT_TTL although it matches its value). Could be
made an option ("-t"?) to zonec, though.

-Peter

7

Ted Lindgreen wrote:

[Quoting Liam Kennedy, on Jul 20, 14:42, in "Re: TTL value in SOA ..."]

so in the absence of $TTL it is using 3600
do you know where it is getting this from - is it an NSD default?

Yes, it's deined in zonec.c:
  #define DEFAULT_TTL 3600

cool - I've added explicit $TTLs to the zone files
thanks all for your help.

Liam.