24 Sep
2015
24 Sep
'15
8:46 p.m.
On Thu, Sep 24, 2015 at 5:38 AM, Michael Balzer <dexter@expeedo.de> wrote:
I just checked the DNS record for tmc.openvehicles.com:
tmc.openvehicles.com. 14399 IN A 54.197.255.127
I suggest reducing the TTL to 1 hour before we recommend the change to users.
Keep in mind that much of the internet is ruled by caching name servers that will be quite stubborn about having to update their records. I seriously doubt that a TTL of 1 hour will be honored by much of anything. You're lucky if the ISP name servers bother to check for updates more than once or twice a day. Still, it makes sense to use the fully qualified name of the host rather than the IP address. IP addresses change, the goal of a FQN is to be static forever.