Error: 0: php_network_getaddresses: getaddrinfo failed: Name or service not known
I recently installed Yoast WordPress SEO plugin; however, I get the following error every time I try to activate my license key. All other plugins are working fine.
**Error: 0: php_network_getaddresses: getaddrinfo failed: Name or service not known **
I am using LAMP environment and Wordpress 3.9.2. Firewall is off.
Is there any setting on the server that is causing this issue?
Here is my latest apache error log.
[Mon Aug 18 17:24:46.811439 2014] [mpm_prefork:notice] [pid 3574] AH00163: Apache/2.4.7 (Ubuntu) PHP/5.5.9-1ubuntu4.2 configured -- resuming normal operations [Mon Aug 18 17:24:46.811530 2014] [core:notice] [pid 3574] AH00094: Command line: '/usr/sbin/apache2'