Puppet – Puppet Client Not Connecting to Master SSL Connect Error

Any open signing requests should be listed in puppet cert list on the master. If they don't show up there, there's no use trying to sign them. Once signed, they disappear from the list and will only show up in puppet cert list --all.

It appears your master is not receiving signing requests from the agent, since your list is empty There is a number of things that could be wrong. Let's start with these:

• Is the master running?
• Does the hostname 'puppet' or 'puppet.abc.com' resolve from the agent?
• Is TCP port 8140 on the master reachable from the agent (try: telnet puppet 8140)?
• What does syslog on the agent say?
• Try puppet agent --test on the agent, which will attempt to connect to the master and stay in foreground to show the output.

Run puppet master --debug --no-daemonize and if you come to see

Error: Could not run: Address already in use - bind(2)

It probably means that the puppet master is already running. Try checking the output of

netstat -anpl | grep 8140

if you see a line referencing port 8140 with LISTEN, then that is probably your issue. (The puppet master process listens on port 8140 for incoming connections from clients by default.)

If you've followed the default setup for Ubuntu, apache will have started, listening on port 8140.

sudo service apache2 stop

then carry on with the config.