[dbus]How to verify the capability of dbus IPC between machines

[Pavel Strashkin]

What about "netstat -nlpt"? Does it show that some process is
listening on 12434 TCP/IP port?

2011/11/29 yinxb <yinxiaobiao at gmail.com>:
> Hi Pavel Strashkin
>
>    It seems that dbus-monitor did not connect the specified host & port.
>
>    When execute the  command in remotePC or lolcaPC:
>    dbus-monitor --address tcp:host=xx.xxx.xx.116,port=12434
>     only get the register failed message
> ========
> Failed to register connection to bus at
> tcp:host=10.239.58.116,port=12434: Did not receive a reply. Possible
> causes include: the remote application did not send a reply, the
> message bus security policy blocked the reply, the reply timeout
> expired, or the network connection was broken.
> ========
>   I even turned off the firewall on both remotePC and localPC and
> still get the same result.
>
> 在 2011年11月30日 上午3:34，Pavel Strashkin <pavel.strashkin at gmail.com> 写道：
>> Does dbus-monitor successfully connect to dbus-daemon on specified host & port?
>>
>> 2011/11/28 yinxb <yinxiaobiao at gmail.com>:
>>> In addition,dbus-monitor in the remote PC cannot find any info related
>>> the dbus-send.
>>>
>>> 在 2011年11月29日 上午10:38，yinxb <yinxiaobiao at gmail.com> 写道：
>>>> Hi  Thiago Macieira and Pavel
>>>>
>>>>     Thanks for your reply.
>>>>
>>>>     As metioned in your mail,I did the following steps:
>>>> 1.Romote PC:
>>>>   Config /etc/dbus-1/system.conf.
>>>>   Add listen tcp:host=0.0.0.0,port=12434
>>>>
>>>> 2.Local PC:
>>>>   dbus-send --address=tcp:host=xx.xxx.xx.116,port=12434 --print-reply
>>>>  --dest=org.gnome.PowerManager
>>>> /org/ayatana/NotificationItem/gnome_power_manager/Menu
>>>> org.freedesktop.Dbus.Introspectable.Introspect
>>>>
>>>> after that,I got the following message:
>>>> Error org.freedesktop.DBus.Error.NoReply: Did not receive a reply.
>>>> Possible causes include: the remote application did not send a reply,
>>>> the message bus security policy blocked the reply, the reply timeout
>>>> expired, or the network connection was broken.
>>>>
>>>> Can you figure out what is missing or wrong with my steps?
>>>>
>>>> ps:
>>>> telnet can connect the remote PC (xx.xxx.xx.116).
>>>>
>>>> 2011/11/29 Thiago Macieira <thiago at kde.org>:
>>>>> On Monday, 28 de November de 2011 15.59.42, 尹YinXiaobiao wrote:
>>>>>> Hi all
>>>>>>      I am a newbie at Dbus and this is my first mail in this maillist.
>>>>>>     By some investigate and look at the source code,I know that dbus
>>>>>> is using socket(tcp & unix domain socket) to transfer data.
>>>>>>     So it is possible for communication between two machines(or VM).
>>>>>
>>>>> Right, it's possible.
>>>>>
>>>>>>     Now my question is how to vevify this capability by dbus-send command.
>>>>>>     Can anyone give me  a hint?
>>>>>
>>>>> Just send the message you want to send. You know the address of the bus server
>>>>> to connect to, so pass it in the --address= option. You know that address
>>>>> because you configured the other machine with it.
>>>>>
>>>>>> Someone tell me that dbus do not listen on TCP by default,how to
>>>>>> enable TCP listen?
>>>>>
>>>>> Create your own config file and change the <listen> directive to be on TCP.
>>>>>
>>>>> Remember: D-Bus TCP is unauthenticated an unencrypted. It accepts connections
>>>>> from anywhere and trusts it blindly.
>>>>>
>>>>> --
>>>>> Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
>>>>>   Software Architect - Intel Open Source Technology Center
>>>>>      PGP/GPG: 0x6EF45358; fingerprint:
>>>>>      E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358
>>>>>
>>>>> _______________________________________________
>>>>> dbus mailing list
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>>>>> http://lists.freedesktop.org/mailman/listinfo/dbus
>>>>>
>>>>>
>>>>
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>