On Thu, Jan 31, 2013 at 7:51 PM, smf <[email protected]> wrote:
> Hi,
>
> Does anyone know what Node returns ECONNREFUSED insetad of ESERVFAIL for DNS
> queries that return SERVFAIL?
>
> [root@mail1-ec2 ~]# dig servfail.test.snert.net
>
> ; <<>> DiG 9.7.3-P3-RedHat-9.7.3-2.11.amzn1 <<>> servfail.test.snert.net
> ;; global options: +cmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 51175
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
>
> ;; QUESTION SECTION:
> ;servfail.test.snert.net. IN A
>
> ;; Query time: 0 msec
> ;; SERVER: 127.0.0.1#53(127.0.0.1)
> ;; WHEN: Thu Jan 31 18:49:40 2013
> ;; MSG SIZE rcvd: 41
>
>
> [root@mail1-ec2 ~]# cat a.js
> var dns = require('dns');
> dns.resolve4('servfail.test.snert.net', function (err, res) {
> if (err) {
> console.log(err);
> }
> else {
> console.log(res);
> }
> });
>
> [root@mail1-ec2 ~]# node a.js
> { [Error: queryA ECONNREFUSED]
> code: 'ECONNREFUSED',
> errno: 'ECONNREFUSED',
> syscall: 'queryA' }
>
> Kind regards,
> Steve.
Not sure, it seems to work for me:
$ out/Release/node tmp/dns-econn.js
{ [Error: queryA ENOTFOUND] code: 'ENOTFOUND', errno: 'ENOTFOUND',
syscall: 'queryA' }
The error code is ENOTFOUND for backwards compatibility but
essentially means NXDOMAIN (which is what dig returns for that
domain).
Maybe run strace on the script to see what it's doing.
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