Nginx Couple of hiccups on nginx configuration

OK, I'm temporarily setting up Centminmod on a 1 CPU Linode (1G RAM). When I restart nginx, I get this warning when starting it, which seems to be a pagespeed error, but is there a fix, or just ignore it?

Code:

[0930/012918:INFO:google_message_handler.cc(35)] No threading detected. Own threads: 1 Rewrite, 1 Expensive Rewrite.

Also, I only have one web site to configure for nginx, and I see it created a .conf file for that site in /usr/local/nginx/conf/conf.d.

I get a warning when nginx restarts saying that there is a conflicting server name.

Code:

nginx: [warn] conflicting server name "blahblah.com" on 0.0.0.0:80, ignored

I assume it is bringing in another vitual host, or configuration from somewhere. but I don't know where this assumed duplicitous server name could be. I thought it would be getting it from the virtual.conf file, so I deleted that, but the error still shows up. There are no other web site .conf files listed for nginx, other than the main one in /usr/local/nginx/conf. Is it safe to delete that main site, and re-add it to see if that fixes it?

I think my problem above was because I'm rewriting Domain Name Registration at Reputable Provider | Easy domain name search & lots of extras as domainname.com, and I had 2 references to the www version in the configuration. fixed now I think.

Also, regarding the CloudFlare IP's to add to the configuration, nginx doesn't like the IPv6 versions of those addresses, such as:

Code:

set_real_ip_from 2405:b500::/32;

It throws this error:

Code:

nginx: [emerg] invalid parameter "2405:b500::/32" in /usr/local/nginx/conf/nginx.conf:36

I've since removed the IPv6 addresses, the IPv4 addresses work fine.

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Yes, that's what it was, thanks