id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
911	ocsp.comodoca.com could not be resolved	John Carne		"hi,

My techs can't solve this repeated message all day long in error log :

2016/02/21 21:54:31 [error] 700513#700513: ocsp.comodoca.com could not be resolved (110: Operation timed out) while requesting certificate status, responder: ocsp.comodoca.com

We use nginx nDeploy version as reverse proxy.

1.
My resolver.conf is as follow for performance, and data privacy :
127.0.0.1
213.186.33.99
This is given by my provider : 213.186.33.99, this is a CDN popped worldwide IP of their network, so it can't be the issue

2.
Was added this in my /etc/host file
178.255.83.1 ocsp.comodoca.com
Just now, ocsp.comodoca.com is still well resolving to 178.255.83.1

3.
I talked to cpanel support :
IPV6 is setup by default on cpanel server, what I did is adding an ipv6 range, but no accounts have any ipv6 allocated yet. There is no issue with this


NB
uname -a result is not correct with kernelcare, server is uptodate"	defect	closed	minor		documentation	1.9.x	invalid			"Linux web1.hosting1976.fr 2.6.32-604.30.3.lve1.3.63.el6.x86_64 #1 SMP Sun Sep 27 06:34:10 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux
"	"root@web1 [~]# nginx -V
nginx version: nginx/1.8.1
built by gcc 4.8.2 20140120 (Red Hat 4.8.2-15) (GCC)
built with OpenSSL 1.0.1e-fips 11 Feb 2013
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nobody --group=nobody --add-module=naxsi-0.54/naxsi_src --with-http_ssl_module --with-http_realip_module --with-http_addition_module --with-http_sub_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_random_index_module --with-http_secure_link_module --with-http_stub_status_module --with-http_auth_request_module --with-file-aio --with-threads --with-ipv6 --with-http_spdy_module --add-module=ngx_pagespeed-release-1.10.33.4-beta --with-cc=/opt/rh/devtoolset-2/root/usr/bin/gcc --add-module=/usr/local/rvm/gems/ruby-2.3.0/gems/passenger-5.0.24/src/nginx_module --add-module=ngx_cache_purge-2.3 --with-cc-opt='-O2 -g -pipe -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic'
"