当我尝试从客户端连接到主服务器时；这就是我得到的：
puppet agent -t
Error: Could not request certificate: Error 400 on SERVER: The environment must be purely alphanumeric, not 'puppet-ca'
Exiting; failed to retrieve certificate and waitforcert is disabled
/var/log/messages
May 20 08:27:20 app-prd-test xinetd[1989]: START: nrpep pid=32449 from=66.192.29.89
May 20 08:27:20 app-prd-test xinetd[1989]: EXIT: nrpep status=0 pid=32449 duration=0(sec)
May 20 08:28:02 app-prd-test xinetd[1989]: START: nrpep pid=32453 from=66.192.29.89
May 20 08:28:02 app-prd-test xinetd[1989]: EXIT: nrpep status=0 pid=32453 duration=0(sec)
May 20 08:28:26 app-prd-test puppet-agent[32130]: Could not request certificate: Error 400 on SERVER: The environment must be purely alphanumeric, not 'puppet-ca'
root@am-prd-02:/var/lib/puppet/ssl# cat /etc/puppet/puppet.conf | grep -v "#"
[main]
logdir = /var/log/puppet
rundir = /var/run/puppet
ssldir = $vardir/ssl
server=puppet
certname=puppet
dns_alt_names = puppet,puppet.dul.veraction.net
[agent]
classfile = $vardir/classes.txt
localconfig = $vardir/localconfig
root@am-prd-02:/var/lib/puppet/ssl#