On Tue, 08 Nov 2016 21:49:07 GMT, Alexey Kulentsov wrote:

Hi!

I have a problem with host name resolving - requestHTTP can't resolve any name, but works with IP addresses only. For example, I can dig or NSLookup api.sendgrid.com: 

crimaniak@crimaniak-X550LB:~$ nslookup api.sendgrid.com
Server:		8.8.8.8
Address:	8.8.8.8#53

Non-authoritative answer:
Name:	api.sendgrid.com
Address: 159.122.224.201
Name:	api.sendgrid.com
Address: 159.122.224.200

but next code gives me exception: 

	enum mailEndpoint = "https://api.sendgrid.com/v3/mail/send";
...	
		return requestHTTP(mailEndpoint, (scope HTTPClientRequest request){
				request.method = HTTPMethod.POST;
				request.headers["Authorization"] = "Bearer "~apiKey;
            ...
        });

From both static unittest block and real test page requested from browser. How to debug this issue?
Thanks. 

object.Exception@../../.dub/packages/vibe-d-0.7.30/vibe-d/source/vibe/core/drivers/libevent2.d(270): Failed to lookup host 'api.sendgrid.com': nodename nor servname provided, or not known
(...)

Would be interesting to see if there are any related known issues/questions for libevent. There is a ticket that might be related, where libevent fails to use a second configured name server for lookups: #1612

Does your resolv.conf (or the files in /etc/resolvconf/resolf.conf.d/ or the NetworkManager configuration) contain multiple name servers?