# General
**URL:** https://discourse.nodered.org/c/general/7.md?page=505
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**Page:** 506
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## [Experience in setting up your own MQTT broker in DMZ](https://discourse.nodered.org/t/experience-in-setting-up-your-own-mqtt-broker-in-dmz/49956)
Hi, I have performed some tests using public available MQTT broker services. If you have a solution that generates a lot of messages (like publishing video packages from live sources) you will find out that you very qui…
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## [Fresh install on Raspberry Pi zero, freezes loading flows](https://discourse.nodered.org/t/fresh-install-on-raspberry-pi-zero-freezes-loading-flows/49995)
I just finished installing a fresh system on a Raspberry Pi Zero, I opened up Node Red, installed a few nodes, now it freezes loading flows The only flow is the default one, and it is blank. Every time I try to reload…
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## [Nagios-lite-like node wanted](https://discourse.nodered.org/t/nagios-lite-like-node-wanted/49965)
Hi, This is what search returns and this is not what I'm looking for. My smart home UI is built with Node-RED. Some devices in my smart home solution send LTW over MQTT, others don't because they don't use MQTT. Some …
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## [I wonder, passing msg.payload to 'node-red-contrib-send-multipart-formdata' form value](https://discourse.nodered.org/t/i-wonder-passing-msg-payload-to-node-red-contrib-send-multipart-formdata-form-value/49988)
Hi Node-red fellows, i wonder can i pass msg.payload to formData Value. Ref:node-red-contrib-send-multipart-formdata (node) - Node-RED im trying to pass with msg\['http-send-multipart-options'\], still got no clue...
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## [Schedule Export Nodes "all flows"](https://discourse.nodered.org/t/schedule-export-nodes-all-flows/50002)
Hi Everyone, is it possible if I make a schedule for NodeRED configuration backups (like export-\> all flows -\> download) that are done automatically with a certain timeframe? thank you
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## [Write data frome sensor in file](https://discourse.nodered.org/t/write-data-frome-sensor-in-file/49998)
im begineer with node red ,iwant to write like a small report with this content the maximum and minimum of tempurature and humidity but i found this proble when i debug 1 time the value of max and minimu tme was undef…
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## [HTTPS refresh interval returning with an error](https://discourse.nodered.org/t/https-refresh-interval-returning-with-an-error/49726)
Hi everyone, I have set my httpsRefreshInterval to 12 hours. But whenever it attempts to do the refresh, I get this error. I'm not sure how to address this issue. Here are my current https settings. https: function(…
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## [High CPU usage & out of memory](https://discourse.nodered.org/t/high-cpu-usage-out-of-memory/49976)
Hi, I've got problem where the node-red service have almost 95-100% cpu usage and eventually restart it self. Here's what I've got from syslog: node-red\[5886\]: (Use \`node --trace-deprecation ...\` to show where the warni…
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## [Node-RED on IIS Windows Server 2012 R2](https://discourse.nodered.org/t/node-red-on-iis-windows-server-2012-r2/49992)
I need help to expose nodered via internet on windows server 2012 R2. Currently i try to use IIS but encounter an error 401 - Unauthorized: Access is denied due to invalid credentials. Can someone please help? or redire…
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## [Read txt file in folder flle by file](https://discourse.nodered.org/t/read-txt-file-in-folder-flle-by-file/49904)
Someone have sample code/ node read text file file by file for guildline for me?
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## [Switch between numeric values passes when value is true/false](https://discourse.nodered.org/t/switch-between-numeric-values-passes-when-value-is-true-false/49971)
Is this working as designed ? Should true/false pass ?
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## [Problem With Multipe Line in Function](https://discourse.nodered.org/t/problem-with-multipe-line-in-function/49975)
Hi All, I'm trying to create function in each line and works fine. But, try to combine them with different topic make chart some delay and only display one line. After that, i'm try to create function to make it run in …
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## [Setting access rights with \`file out\`](https://discourse.nodered.org/t/setting-access-rights-with-file-out/49705)
How can I set the access mode (like '0640') when creating files with file out?
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## [Live facial detection](https://discourse.nodered.org/t/live-facial-detection/48103)
I see there are many projects that can detect faces on photo by Node-Red, but is it possible to detect faces by live images with, say 10 fps? I would like to crop the faces and then send to cloud for further analysis. A…
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## [I'm stuck with IKEA Tradfri](https://discourse.nodered.org/t/im-stuck-with-ikea-tradfri/49892)
I've made a simple Node Flow with 5 IKEA light bulbs. Everything worked for a while but at some point the response of the bulbs became unacceptable. I updated my RPI and updated Zigbee2MQTT to the latest version. Now non…
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## [Updated to latest node-red-contrib-influxdb. Can't retrieve data, Unhandled promise rejection](https://discourse.nodered.org/t/updated-to-latest-node-red-contrib-influxdb-cant-retrieve-data-unhandled-promise-rejection/49951)
Using Influx 1.8.x all ok until I updated the influxdb node to the latest as it has support for influx 2.x and was planning on updating. The writing to influx is still ok but I cannot retrieve data from within node red u…
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## [Update to 2.0.5 not fully completed?](https://discourse.nodered.org/t/update-to-2-0-5-not-fully-completed/49963)
I just updated Node-RED to version 2.0.5 (on Ubuntu) without any problems. Starting by hand shows that version 2.0.5 is running (see below) What surprises me is that I still get version 1.3.4 displayed in the top right …
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## [Help with string manipulation](https://discourse.nodered.org/t/help-with-string-manipulation/49958)
I am sending some data to a display with 2 lines of 16 char's. The top line I want to display the amount of Watts taken from the net and the second line the returned to the net. So I want the first string to be exactly …
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## [How insert checkBox in table](https://discourse.nodered.org/t/how-insert-checkbox-in-table/49961)
hi, i have a table witch contain a list of fake events and alarms generated from OPC-UA server. i want to add column contain check-box. i used the follow HTML code \ \\ in template node but t…
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## [Node-red-contrib-victron install disables entire instance](https://discourse.nodered.org/t/node-red-contrib-victron-install-disables-entire-instance/48671)
Installing node-red-contrib-victron messes the flows file because when the module installs it creates a configuration node, and every time it restarts, it creates another with the same name. Doing anything at this point…
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## [Setting up this dashboard (NR/Mosquitto/web page)](https://discourse.nodered.org/t/setting-up-this-dashboard-nr-mosquitto-web-page/49949)
Hi, A search has revealed a couple of similar requests mostly linked to the NR dashboard. I wish to develop the below architecture for displaying data from sensors, I have the plc, rpi and mosquitto comms setup, I just…
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## [Permission problems](https://discourse.nodered.org/t/permission-problems/49717)
I have installed node-red at a Ubuntu machine, logged as an user with sudo priviledges, and I have run the pi script, not using "sudo". This machine will be remotely accessed by students, which do not have sudo priviledg…
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## [Looking for new front-end for my home automation](https://discourse.nodered.org/t/looking-for-new-front-end-for-my-home-automation/49932)
I am looking to use uibuilder or some other front end for my home automation. I have successfully integrated my Homeseer system to node-red and using the build in dashboard I have successfully accessed and can control m…
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## [SQL Insert query from MQTT](https://discourse.nodered.org/t/sql-insert-query-from-mqtt/49943)
Hello All, This is Kartik I am trying to fetch all tag data received in array from Ignition Edge but currently I am able to fetch a single array data but I need the array data as per my array length so anyone please hel…
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## [ECONNREFUSED error with siemens s7 node](https://discourse.nodered.org/t/econnrefused-error-with-siemens-s7-node/49921)
Trying to connect to a siemens PLC to pull sensor data into node red. I've done this successfully in the past but I'm now getting this error. I've double checked port and rack/slot info and they match working nodes we're…
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## [Update buffer parser -\> fail](https://discourse.nodered.org/t/update-buffer-parser-fail/49896)
Hi, I´m using NR 2.0.5 with Node.JS 12.x today I wanted to update contrib-buffer-parser and contrib-modbus from palette, but an error always occurs: \> 2021-08-19T05:33:08.943Z Installieren : node-red-contrib-buffer-pa…
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## [Simple "If input is then start flow" function](https://discourse.nodered.org/t/simple-if-input-is-then-start-flow-function/49912)
Hi All, I am kind of new to NODE RED and JS. I am trying to create a flow for the following: When a button is pressed on my RF remote, the flow must add 10 to brightness and sent MQTT message with the new value. (But…
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## [Split string into text and integers](https://discourse.nodered.org/t/split-string-into-text-and-integers/49889)
Thanks to the many RS232 posts here, I got our weigh scale correctly connected to a Pi via an RS232-USB cable, and got the output to flow into the Pi upon using the inject node. Only thing that remains is splitting the …
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## [I cant connect to github repository](https://discourse.nodered.org/t/i-cant-connect-to-github-repository/49741)
hi I cant load any project or push it to github i have this error in consol 15 Aug 11:01:20 - \[error\] Error: remote: Support for password authentication was removed on August 13, 2021. Please use a personal access tok…
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## [Manage many ID flow?](https://discourse.nodered.org/t/manage-many-id-flow/49916)
Hello... Someone help me... I have to make a java system and manage flows, my question externally, can each flow have an id? I have several flow, one each company, is it possible to manage each one externally?
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