[rabbitmq-discuss] Cluster Setup

mrajkovic milan at m-i.com.au
Thu Jul 19 02:15:44 BST 2012

Hi Tim,

Sorry it was 1am locally here when we were emailing last night, and I needed to getup for an early morning appointment….

telnet has blocked it on that port…
root at mf-01:~# telnet mf-02 4369
telnet: Unable to connect to remote host: Connection refused

then I ran netstat on mf-02
root at mf-02:~# netstat -p -l --numeric-ports
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0  *               LISTEN      995/mysqld
tcp        0      0 *               LISTEN      2028/perl
tcp        0      0    *               LISTEN      1982/apache2
tcp        0      0*               LISTEN      1868/epmd
tcp        0      0    *               LISTEN      935/dnsmasq
tcp        0      0    *               LISTEN      764/vsftpd
tcp        0      0    *               LISTEN      800/sshd
tcp        0      0    *               LISTEN      1755/master
tcp        0      0 *               LISTEN      26602/beam.smp
tcp        0      0*               LISTEN      26602/beam.smp
tcp6       0      0 :::53                   :::*                    LISTEN      935/dnsmasq
tcp6       0      0 :::22                   :::*                    LISTEN      800/sshd
tcp6       0      0 :::25                   :::*                    LISTEN      1755/master
udp        0      0    *                           935/dnsmasq
udp        0      0 *                           1613/dccifd
udp        0      0 *                           2028/perl
udp6       0      0 :::53                   :::*                                935/dnsmasq

it looks like its only listening on localhost and not all ports

Milan Rajkovic - Managing Director
Victoria Office

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From: Tim Watson-6 [via RabbitMQ] [mailto:ml-node+s1065348n20888h79 at n5.nabble.com]
Sent: Thursday, 19 July 2012 12:51 AM
To: Milan Rajkovic
Subject: Re: Cluster Setup

On 18 Jul 2012, at 15:31, mrajkovic wrote:
root at mf-01:~# telnet
telnet> open mf-02 5672
Connected to mf-02.cloud.m-i.com.au.
Escape character is '^]'.

AMQP    Connection closed by foreign host.

telnet works…

No sorry, I'm clearly having concentration problems this afternoon. You need to telnet onto the epmd port 4369. I'm assuming you cannot do that? Unless you've set ERL_EPMD_ADDRESS or you have some local configuration on that machine preventing epmd from listening to anything but localhost, I can't see why this would be happening. Please confirm that telnet is *not* working as expected.

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