On Friday 12 August 2016, Jeffrey L. Taylor wrote:
Quoting Per Jessen
: I have a cron job running every 20 minutes monitoring a temperature sensor for minor changes in trend up/down. This has been running for a few months.
Today at 1521 I got a warning that the trend dad changed to slightly upward. The next one failed on a DNS issue.
The puzzle:
wget -nd http://office20.local.net:4444/--slope--/1.2.3.4/0 --2016-08-12 20:38:24-- http://office20.local.net:4444/--slope--/1.2.3.4/0 Resolving office20.local.net (office20.local.net)... failed: Name or service not known. wget: unable to resolve host address ‘office20.local.net’
So clearly "office20.local.net" does not resolve. Except:
and on my machine, see below. local.net is a real domain name, so how it resolves will be highly implementation dependent. IIRC, Postfix always goes directly to DNS, ignoring /etc/hosts. I use .local for my LAN with 192.168.x.x addresses. So far it hasn't bit me.
I'm also using .local since years but I've noticed already that it will bite you if mDNS, avahi, etc. is involved. .local is very very special and maybe the worst domain you could use for local DNS. https://en.wikipedia.org/wiki/.local It's on my TODO since years to find something better than .local but as long as I blacklist any avahi/mDNS, stuff it works. BTW suse default was .site for a long time but it's also an existing toplevel domain nowadays. cu, Rudi
At the moment, away from my home network, .local does not resolve. IIRC, there is a TLD that is reserved for private networks, maybe .localdomain?
HTH, Jeffrey
$ dig local.net
; <<>> DiG 9.9.4-rpz2.13269.14-P2 <<>> local.net ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27256 ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;local.net. IN A
;; ANSWER SECTION: local.net. 299 IN A 69.172.201.153
;; Query time: 93 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Fri Aug 12 16:12:51 CDT 2016 ;; MSG SIZE rcvd: 54
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