Client can't connect to RabbitMQ server on localhost - php

Question

I installed fresh RabbitMQ 3.1.3 on ubuntu 12.04.2 LTS by apt-get, and try to start consumers on the same server, but I have connection problem:
[PhpAmqpLib\Exception\AMQPRuntimeException]
Error Connecting to server(113): No route to host
There is status of working server:
Status of node rabbit#ns1 ...
[{pid,2106},
{running_applications,[{rabbit,"RabbitMQ","3.1.3"},
{mnesia,"MNESIA CXC 138 12","4.5"},
{os_mon,"CPO CXC 138 46","2.2.7"},
{xmerl,"XML parser","1.2.10"},
{sasl,"SASL CXC 138 11","2.1.10"},
{stdlib,"ERTS CXC 138 10","1.17.5"},
{kernel,"ERTS CXC 138 10","2.14.5"}]},
{os,{unix,linux}},
{erlang_version,"Erlang R14B04 (erts-5.8.5) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:30] [kernel-poll:true]\n"},
{memory,[{total,27728944},
{connection_procs,2704},
{queue_procs,5408},
{plugins,0},
{other_proc,9021680},
{mnesia,60016},
{mgmt_db,0},
{msg_index,31144},
{other_ets,770736},
{binary,1968},
{code,14560395},
{atom,1356081},
{other_system,1918812}]},
{vm_memory_high_watermark,0.4},
{vm_memory_limit,1262847590},
{disk_free_limit,1000000000},
{disk_free,214706556928},
{file_descriptors,[{total_limit,924},
{total_used,3},
{sockets_limit,829},
{sockets_used,1}]},
{processes,[{limit,1048576},{used,125}]},
{run_queue,0},
{uptime,1265}]
...done.
I don't have any limitations by iptables (ports):
Chain INPUT (policy ACCEPT)
target prot opt source destination
Chain FORWARD (policy ACCEPT)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
And etc/hosts is OK.
127.0.0.1 localhost
{IP-ADDRESS} ns1.***.org ns1
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
Whay I'm doing wrong?
UPD:
sudo netstat -nlp | grep 5672 returns: tcp6 0 0 :::5672 :::* LISTEN 2106/beam.smp
From rabbitMQ logs:
=INFO REPORT==== 2-Jul-2013::16:05:11 ===
started TCP Listener on [::]:5672
=INFO REPORT==== 2-Jul-2013::16:05:11 ===
Server startup complete; 0 plugins started.
=INFO REPORT==== 2-Jul-2013::16:35:04 ===
accepting AMQP connection <0.1130.0> (127.0.0.1:44112 -> 127.0.0.1:5672)
=ERROR REPORT==== 2-Jul-2013::16:35:14 ===
closing AMQP connection <0.1130.0> (127.0.0.1:44112 -> 127.0.0.1:5672):
{handshake_timeout,handshake}
I tried to change localhost to ip6-localhost and sometimes when try to starting consumer, it returns:
[PhpAmqpLib\Exception\AMQPRuntimeException]
Error Connecting to server(110): Connection timed out
UPD2 If I start consumer with debug flag and --env=prod (php .../app/console rabbitmq:consumer -w -d consumer_name), consumer starts and working.

Answer 1

If the necessary ports are not open on the rabbitmq server, you get this "No route to host" error when the client tries to connect.
To fix it, make sure the ports are open, if not, open them:
sudo iptables -I INPUT -p tcp --dport 5672 --syn -j ACCEPT
sudo iptables -I INPUT -p tcp --dport 5673 --syn -j ACCEPT
sudo iptables -I INPUT -p tcp --dport 15672 --syn -j ACCEPT
This sets it on temporally. Set it permanently with your iptables.
sudo vi /etc/sysconfig/iptables
Then restart:
sudo service iptables restart

Answer 2

Problem was fixed with reconfiguring listen address from 0.0.0.0:5672 to 127.0.0.1:5672 and small security fixes in OS.