新服务器装完系统后，安装puppet后执行如下操作报错：
执行puppet agent -t的时候报错；
Aug 30 09:14:28 masterdb puppet-agent[66746]: Unable to fetch my node definition, but the agent run will continue:
Aug 30 09:14:28 masterdb puppet-agent[66746]: getaddrinfo: Name or service not known
Aug 30 09:14:28 masterdb puppet-agent[66746]: Retrieving pluginfacts
Aug 30 09:14:28 masterdb puppet-agent[66746]: (/File[/var/lib/puppet/facts.d]) Failed to generate additional resources using ‘eval_generate‘: getaddrinfo: Name or service not known
Aug 30 09:14:28 masterdb puppet-agent[66746]: (/File[/var/lib/puppet/facts.d]) Could not evaluate: Could not retrieve file metadata for puppet://puppet.sankuai.info99999999999999/pluginfacts: getaddrinfo: Name or service not known
Aug 30 09:14:28 masterdb puppet-agent[66746]: (/File[/var/lib/puppet/facts.d]) Wrapped exception:
Aug 30 09:14:28 masterdb puppet-agent[66746]: (/File[/var/lib/puppet/facts.d]) getaddrinfo: Name or service not known
Aug 30 09:14:28 masterdb puppet-agent[66746]: Retrieving plugin
Aug 30 09:14:28 masterdb puppet-agent[66746]: (/File[/var/lib/puppet/lib]) Failed to generate additional resources using ‘eval_generate‘: getaddrinfo: Name or service not known
Aug 30 09:14:28 masterdb puppet-agent[66746]: (/File[/var/lib/puppet/lib]) Could not evaluate: Could not retrieve file metadata for puppet://puppet.sankuai.info99999999999999/plugins: getaddrinfo: Name or service not known
Aug 30 09:14:28 masterdb puppet-agent[66746]: (/File[/var/lib/puppet/lib]) Wrapped exception:
Aug 30 09:14:28 masterdb puppet-agent[66746]: (/File[/var/lib/puppet/lib]) getaddrinfo: Name or service not known
Aug 30 09:14:28 masterdb puppet-agent[60701]: Config file /etc/puppet/puppet.conf changed; triggering re-parse of all config files.
Aug 30 09:14:29 masterdb puppet-agent[66746]: Could not retrieve catalog from remote server: getaddrinfo: Name or service not known
Aug 30 09:14:29 masterdb puppet-agent[66746]: Not using cache on failed catalog
Aug 30 09:14:29 masterdb puppet-agent[66746]: Could not retrieve catalog; skipping run
Aug 30 09:14:29 masterdb puppet-agent[66746]: Could not send report: getaddrinfo: Name or service not known
Aug 30 09:14:43 masterdb puppet-agent[60701]: Config file /etc/puppet/puppet.conf changed; triggering re-parse of all config files.
尝试用如下方法解决：
解决方法：
客户端删除现有ssl证书：
find /var/lib/puppet -type f -print0 |xargs -0r rm
服务端进行客户端证书删除操作：
puppet cert clean puppetclient1.com
客户端重新注册：
rm -f /var/lib/puppet/ssl/certs/puppetclient1.com.pem
puppet agent -t
服务端同意注册：
puppet cert sign puppetclient1.com
确认注册成功：
puppet agent -t
无效，
查了半天最后，搞明白了是时间未同步导致的~~~~！！！！！
ntpdate 同步时间后，这个puppet agent -t执行成功，哎，，手工装服务器还是有风险，如果用cobbler装最后执行了自定义脚步，脚步中自动同步了服务器时间就可以避免这个问题