I installed an updated eclipse mosquitto broker on a Windows host for my home alarm and control MQTT network. Had a bit of trouble getting it to listen for remote clients, but got everything working with the existing clients.
The trouble is I can't get the service to log no matter what I put in mosquitto.conf. If I run it directly from a command prompt (mosquitto -v) it logs to the console, and always says 'Using default config'. Does this mean it can't locate the CONF file? I've tried several versions of mosquitto going back to my original 1.6 and they all do the same thing.
This setting:
log_dest file c:\projects#lab\mosquitto.log
is the problem. I see where it says that a Windows service defaults to 'log_dest none', but I assumed I could overwrite that.
I doubt # is valid in a path name.
Also mosquitto doesn't have a default config file name, you must pass it on the command line with -c option.
The service picks up mosquitto.conf from the install dir, but only when running as the service
Also just to be clear, -v overrides all logging options (including writing to a file). From the man page:
-v, --verbose
Use verbose logging. This is equivalent to setting log_type to all in the configuration file. This overrides and logging options
given in the configuration file.
Related
I have a virtual machine that is supposed to be the host, which can receive and send data. The first picture is the error that I'm getting on my main machine (from which I'm trying to send data from). The second picture is the mosquitto log on my virtual machine. Also I'm using the default config, which as far as I know can't cause these problems, at least from what I have seen from other examples. I have very little understanding on how all of this works, so any help is appreciated.
What I have tried on the host machine:
Disabling Windows defender
Adding firewall rules for "mosquitto.exe"
Installing mosquitto on a linux machine
Starting with the release of Mosquitto version 2.0.0 (you are running v2.0.2) the default config will only bind to localhost as a move to a more secure default posture.
If you want to be able to access the broker from other machines you will need to explicitly edit the config files to either add a new listener that binds to the external IP address (or 0.0.0.0) or add a bind entry for the default listener.
By default it will also only allow anonymous connections (without username/password) from localhost, to allow anonymous from remote add:
allow_anonymous true
More details can be found in the 2.0 release notes here
You have to run with
mosquitto -c mosquitto.conf
mosquitto.conf, which exists in the folder same with execution file exists (C:\Program Files\mosquitto etc.), have to include following line.
listener 1883 ip_address_of_the_machine(192.168.1.1 etc.)
By default, the Mosquitto broker will only accept connections from clients on the local machine (the server hosting the broker).
Therefore, a custom configuration needs to be used with your instance of Mosquitto in order to accept connections from remote clients.
On your Windows machine, run a text editor as administrator and paste the following text:
listener 1883
allow_anonymous true
This creates a listener on port 1883 and allows anonymous connections. By default the number of connections is infinite. Save the file to "C:\Program Files\Mosquitto" using a file name with the ".conf" extension such as "your_conf_file.conf".
Open a terminal window and navigate to the mosquitto directory. Run the following command:
mosquitto -v -c your_conf_file.conf
where
-c : specify the broker config file.
-v : verbose mode - enable all logging types. This overrides
any logging options given in the config file.
I found I had to add, not only bind_address ip_address but also had to set allow_anonymous true before devices could connect successfully to MQTT. Of course I understand that a better option would be to set user and password on each device. But that's a next step after everything actually works in the minimum configuration.
For those who use mosquitto with homebrew on Mac.
Adding these two lines to /opt/homebrew/Cellar/mosquitto/2.0.15/etc/mosquitto/mosquitto.conf fixed my issue.
allow_anonymous true
listener 1883
you can run it with the included 'no-auth' config file like so:
mosquitto -c /mosquitto-no-auth.conf
I had the same problem while running it inside docker container (generated with docker-compose).
In docker-compose.yml file this is done with:
command: mosquitto -c /mosquitto-no-auth.conf
I'm working on an automated deployment of HCL Connections 6.5 using Ansible on CentOS 7. It already includes IBM IM, WAS (Dmgr + Node), DB2 and Connections itself. The HTTP Server (IHS) is installed, but now I need to configure it. I need to configure the WebSphere Plugin using WCT.
For education purpose, I did this in the past on another testserver using GUI mode like this:
cd /opt/IBM/WebSphere/Toolbox/WCT
./wct.sh
Now we get an wizard with several steps that asks for the plugin location, webserver definition name, port of the HTTP Server and so on.
Automate the wizard
I found wctcmd.sh
as CLI equivalent of wtc.sh to configure webservers automatically. So I made the following response file
configType=remote
enableAdminServerSupport=true
enableUserAndPass=true
enableWinService=false
ihsAdminCreateUserAndGroup=true
ihsAdminPassword=password
ihsAdminPort=8008
ihsAdminUnixUserGroup=ihsadmin
ihsAdminUnixUserID=ihsadmin
mapWebServerToApplications=true
wasMachineHostname=cnx65.internal
webServerConfigFile1=/opt/IBM/HTTPServer/conf/httpd.conf
webServerDefinition=webserver1
webServerHostName=cnx65.internal
webServerOS=operating_system_value
webServerPortNumber=80
webServerSelected=ihs
and ran wctcmd.sh like this:
cd /opt/IBM/WebSphere/Toolbox/WCT
./wctcmd.sh -tool pct -createDefinition -defLocPathname /opt/IBM/WebSphere/Plugins -response resp-file
It says that the tool was executed successfully. But when I open the webserver config /opt/IBM/HTTPServer/conf/httpd.conf it has added the following two lines:
LoadModule was_ap22_module ${WAS_PLUGIN_DRIVER}
WebSpherePluginConfig /opt/IBM/WebSphere/Plugins/config/webserver1/plugin-cfg.xml
This variable is not defined and raise an error when starting the webserver:
# /opt/IBM/HTTPServer/bin/apachectl start
httpd: Syntax error on line 915 of /opt/IBM/HTTPServer/conf/httpd.conf: Cannot load ${WAS_PLUGIN_DRIVER} into server: ${WAS_PLUGIN_DRIVER}: cannot open shared object file: No such file or directory
I assume that the presence of ${WAS_PLUGIN_DRIVER} indicates something went wrong with wctcmd.sh because I looked at another test server with Connections 6 installed manually (with GUI) and the manually installed server has no variable there:
LoadModule was_ap22_module /opt/IBM/WebSphere/Plugins/bin/64bits/mod_was_ap22_http.so
WebSpherePluginConfig /opt/IBM/WebSphere/Plugins/config/webserver1/plugin-cfg.xml
A consultant with over 10 years of experience in WebSphere/Connections confirmed that LoadModule was_ap22_module /opt/IBM/WebSphere/Plugins/bin/64bits/mod_was_ap22_http.so is correct when everything worked correctly, so there should be no variable.
Questions
Why does the tool place the ${WAS_PLUGIN_DRIVER} variable in my http config without resolving them?
What am I doing wrong that this occurs?
Figured out that I misinterpreted the operating_system_value value for webServerOS. I thought the script would detect the OS automatically, but the docs say
The valid values for the webServerOS parameter, which is used to specify the web server operating system, are Windows, Linux, Solaris, AIX, HPUX, OS390, and OS400.
I also set webServerType=IHS. Now it generates the following working configuration:
LoadModule was_ap22_module /opt/IBM/WebSphere/Plugins/bin/64bits/mod_was_ap22_http.so
WebSpherePluginConfig /opt/IBM/WebSphere/Plugins/config/webserver1/plugin-cfg.xml
I'm trying to install weblogic server on Centos 7 with following instruction of oracle about console mode. Everything will be fine till weblogic file 's extracting on my computer. I get this message about
display enviroment variable failed
I google it and found xming as solution. But is there any solution to install weblogic without xming.
You need to do a silent install as mentioned. You can find the documentation here.
Basically, you need two files:
A response file
Here, you will set some parameters like ORACLE_HOME, proxy information if needed and installation type, etc.
An oraInst.loc file
In this file, you need to do the following(from documentation):
Replace oui_inventory_directory with the full path to the directory where you want the installer to create the inventory directory. Then, replace oui_install_group with the name of the group whose members have write permissions to this directory.
After doing all of this, you can run the command as follows;
java -jar distribution_name.jar -silent -responseFile file [-options] [()*]
I uploaded my own oraInst.loc and response files here for demonstration. I strongly suggest you to read the documentation though. Good luck.
On a Windows 7 Enterprise machine, I made a fresh install of Erlang 17.4 and RabbitMQ 3.4.3 x64. The installation was successful and uneventful.
I have not yet tried to create my first queue or exchange, but I already see trouble. This problem is similar to another SO post, but that other post appears to involve clustering, which I don't have. Furthermore, that other poster can circumvent his issue by restarting the RabbitMQ service; that approach does not work for me.
My "nodedown" problem is evident at the RabbitMQ command prompt:
C:\Program Files (x86)\RabbitMQ Server\rabbitmq_server-3.4.3\sbin>rabbitmqctl status
Status of node rabbit#TPAJ05421843 ...
Error: unable to connect to node rabbit#TPAJ05421843: nodedown
DIAGNOSTICS
attempted to contact: [rabbit#TPAJ05421843]
rabbit#TPAJ05421843:
* connected to epmd (port 4369) on TPAJ05421843
* epmd reports: node 'rabbit' not running at all
other nodes on TPAJ05421843: ['RabbitMQ']
* suggestion: start the node
current node details:
- node name: 'rabbitmqctl-19884#TPAJ05421843'
- home dir: H:\
- cookie hash: PD4QQCYrf0TME9vIko3Xuw==
Based on the above, I chose to check the status of the node explicitly named 'RabbitMQ'. I get this:
C:\Program Files (x86)\RabbitMQ Server\rabbitmq_server-3.4.3\sbin>rabbitmqctl -n RabbitMQ status
Status of node 'RabbitMQ#TPAJ05421843' ...
Error: unable to connect to node 'RabbitMQ#TPAJ05421843': nodedown
DIAGNOSTICS
attempted to contact: ['RabbitMQ#TPAJ05421843']
RabbitMQ#TPAJ05421843:
* connected to epmd (port 4369) on TPAJ05421843
* epmd reports node 'RabbitMQ' running on port 59301
* TCP connection succeeded but Erlang distribution failed
* suggestion: hostname mismatch?
* suggestion: is the cookie set correctly?
current node details:
- node name: 'rabbitmqctl-23076#TPAJ05421843'
- home dir: H:\
- cookie hash: PD4QQCYrf0TME9vIko3Xuw==
Ok, this is barely better since at least it acknowledges 'RabbitMQ' running on port 59301. But what the heck could it mean that "Erlang distribution failed"?
When I try to research this topic, I found articles saying "be sure you have matched cookies." Based on that I found this article, which claims the "cookie mismatch" does not pertain to me, because I have not created (nor intend to create) a RabbitMQ cluster.
What should I do?
I had this same problem today. There were no cookie or firewall problems and windows reported that the service was running successfully. This is what finally fixed it:
Run RabbitMQ sbin command prompt as administrator.
Run "rabbitmq-service remove"
Run "rabbitmq-service install"
For some reason the service set up by the installer did not configure several registry entries. Running this set them correctly and allowed the service to run.
One thing I noticed was that before I did this, there was no description of the service in the Windows Services view. After installing with the rabbitmq-service command, the description was visible. This might be a quick indicator if you are having the same problem.
As #eddyP commented, I had two different Erlang cookie files:
A server cookie file, located at $env:WINDIR\system32\config\systemprofile\.erlang.cookie (prior to Erlang 20.2 it was located at $env:WINDIR\.erlang.cookie).
A client cookie file, located at $env:USERPROFILE\.erlang.cookie.
Copying the server cookie file over the client one, so that both files were the same, fixed the problem for me.
For further details, see "How Nodes (and CLI tools) Authenticate to Each Other: the Erlang Cookie".
From RabbitMQ Command Prompt sbin (run as administrator) execute this command:
rabbitmq-server restart
In Windown, For some reason delete all folder in c:\Users\xxx\AppData\Roaming\RabbitMQ\db\ (xxx is your username)
then flow #Jerdev answer and
start rabbitmq net start rabbitmq
check rabbitmq service rabbitmqctl status
The same question on the RabbitMQ mailing list: https://groups.google.com/forum/#!topic/rabbitmq-users/0s1ExFhl4hM.
The Erlang cookie is used by rabbitmqctl as well as server nodes, so it may need being taken care of (placed in the correct location).
See "Installing as a non-administrator user leaves .erlang.cookie in the wrong place" on Windows quirks.
I resolve my problem doing this in Windows 10.
Execute RabbitMQ Command Prompt (sbin dir) as administrator.
Execute "rabbitmq-service remove" in (RabbitMQ Command Prompt).
Execute %AppData% in Run Dialog Box of Windows.
Delete all files in RabbitMQ folder.
Execute "rabbitmq-service install" in (RabbitMQ Command Prompt).
Execute "rabbitmqctl start_app" in (RabbitMQ Command Prompt).
If you come here looking for a linux answer for the same error message, try
sudo service rabbitmq-server start
(which is not a blocking command)
Just do the following:
Uninstall rabbitmq and erlang.
delete the rabbitmq folder existing in your appdata (if you dont
know the appdata location, just type echo %AppData% in the command
prompt)
Then install erlang first and then rabbitmq.
After installing, enable the management plugin using below command:
rabbitmq-plugins enable rabbitmq_management
For me the cookies didnt match, like the other comments but the locations was in a different path for those having the same issue as me C:\Windows\System32\config\systemprofile
That is happening because rabbit MQ is not being installed correctly on Windows (and this error is misleading!). So to solve it do the following:
type "cmd" in Cortana search or in "Run" for older version of Windows
right click on in and choose "Run as Administrator"
go to rabbit's sbin folder (cd "C:\Program Files\RabbitMQ Server\rabbitmq_server-3.7.4\sbin")
run: rabbitmq-service remove
run: rabbitmq-service install
now you can run
6. rabbitmq-plugins enable rabbitmq_management
7. rabbitmq-service start
8. and, finally, run: start http://localhost:15672
9. log on as user "guest" with password: "guest" and that's it. Happy Rabbiting!
I missed restarting my WINDOWS OS and then deleting the old version of ERLANG (which I uninstalled before restarting).
Somehow the fresh installation of Rabbit was referring to the old (un-installed version) and all the mismatch was happening. Clue was the 'services' referred Rabbit from the old ERLANG version.
This is how I resolved the error in my Windows 8 system:
Check for a syntax error in the rabbitmq.config file placed in the AppData folder for Windows.
How to check if there is any syntax error?
You can run rabbitmq-server restart from sbin folder in:
Program Files/RabbitMQ/rabbitmq_server_x.x/sbin/.
Replace the content of the rabbitmq.config with rabbitmq.config.example.
You may find the rabbitmq.config.example in:
Program Files/RabbitMQ/rabbitmq_server_x.x/etc/
Warning, you will lose the configuration you have saved previously with rabbitmq.
After changing the files, just hit
rabbitmq-server restart
in the sbin folder mentioned above.
I am trying to build and install membase from source tarball. The steps I followed are:
Un-archive the tar membase-server_src-1.7.1.1.tar.gz
Issue make (from within the untarred folder)
Once done, I enter into directory install/bin and invoke the script membase-server.
This starts up the server with a message:
The maximum number of open files for the membase user is set too low.
It must be at least 10240. Normally this can be increased by adding
the following lines to /etc/security/limits.conf:
Tried updating limits.conf as suggested, but no luck it continues to pop up the same message and continues booting
Given that the server is started I tried accessing memcached over port 11211, but I get a connection refused message. Then figured out (netstat) that memcached is listening to 11210 and tried telneting to port 11210, unfortunately the connection is closed as soon as I issue the following commands
stats
set myvar 0 0 5
Note: I am not getting any output from the commands above {Yes: stats did not show anything but still I issued set.}
Could somebody help me build and install membase from source? Also why is memcached listening to 11210 instead of 11211?
It would be great if somebody could also give me a step-by-step guide which I can follow to build from source from Git repository (I have not used autoconf earlier).
P.S: I have tried installing from binaries (debian package) on the same machines and I am able to successfully install and telnet. Hence not sure why is build from source not working.
You can increase the number of file descriptors on your machine by using the ulimit command. Try doing (you might need to use sudo as well):
ulimit -n 10240
I personally have this set in my .bash_rc so that whenever I start my terminal it is always set for me.
Also, memcached listens on port 11210 by default for Membase. This is done because Moxi, the memcached proxy server, listens on port 11211. I'm also pretty sure that the memcached version used for Membase only listens for the binary protocol so you won't be able to successfully telnet to 11210 and have commands work correctly. Telneting to 11211 (moxi) should work though.