# Latest

**URL:** https://discourse.nodered.org/latest.md?page=1045

[Latest](https://discourse.nodered.org/latest.md) · [Categories](https://discourse.nodered.org/categories.md) · [Tags](https://discourse.nodered.org/tags.md)

**Page:** 1046

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## [Problem with a relay control](https://discourse.nodered.org/t/problem-with-a-relay-control/29892)

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**Author:** [@user7](https://discourse.nodered.org/u/user7)\
**Replies:** 5\
**Last updated:** [11 July 2020 14:06 UTC](https://discourse.nodered.org/t/problem-with-a-relay-control/29892 "2020-07-11T14:06:50Z")

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I have D1 mini, running esp easy and a relay which drivers a 12V fan with mqtt commands. Everything was working fine, untill I added sharp dust sensor. I have problems now, with the relay triggering automaticly on after…

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## [Creating a new node: how do I access the attributes?](https://discourse.nodered.org/t/creating-a-new-node-how-do-i-access-the-attributes/29896)

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**Author:** [@vp2021](https://discourse.nodered.org/u/vp2021)\
**Replies:** 1\
**Last updated:** [11 July 2020 13:26 UTC](https://discourse.nodered.org/t/creating-a-new-node-how-do-i-access-the-attributes/29896 "2020-07-11T13:26:52Z")

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Hello, I'm starting in the creation of nodes for Node-RED. I'd like to create a "simple" node that will take several parameters in its configuration window, and return a concatenation of these parameters... I was able …

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## [Cant find my on custom node module after install on raspberry pi](https://discourse.nodered.org/t/cant-find-my-on-custom-node-module-after-install-on-raspberry-pi/29893)

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**Author:** [@zuhaib446](https://discourse.nodered.org/u/zuhaib446)\
**Replies:** 12\
**Last updated:** [11 July 2020 13:13 UTC](https://discourse.nodered.org/t/cant-find-my-on-custom-node-module-after-install-on-raspberry-pi/29893 "2020-07-11T13:13:42Z")

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cant see module when I install it I have the same costume node module in windows it shows there when I install on the same module on raspberry pi it cant find there 1 Jul 12:19:48 - \[info\] Node-RED version: v1.1.2 11 …

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## [Store twitter data into DB2](https://discourse.nodered.org/t/store-twitter-data-into-db2/29891)

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**Author:** [@jahnavi\_30](https://discourse.nodered.org/u/jahnavi_30)\
**Replies:** 5\
**Last updated:** [11 July 2020 13:05 UTC](https://discourse.nodered.org/t/store-twitter-data-into-db2/29891 "2020-07-11T13:05:16Z")

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Hello Team, I'm working with Twitter Sentiment Analysis using Node-RED. Have to collect the streaming twitter data into a DB2(dashDB) database. Could someone help me out with this. Thank you.

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## [More than one template node in a dashboard?](https://discourse.nodered.org/t/more-than-one-template-node-in-a-dashboard/29800)

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**Author:** [@Robertotarga](https://discourse.nodered.org/u/Robertotarga)\
**Replies:** 4\
**Last updated:** [11 July 2020 10:45 UTC](https://discourse.nodered.org/t/more-than-one-template-node-in-a-dashboard/29800 "2020-07-11T10:45:49Z")

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I would like to have two template nodes to my dashboard. Each template has its own table with a background image defined in its table style. Everything is OK with one single node, but when I add the second node the backg…

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## [Timestamp value change while insert and select from mariadb](https://discourse.nodered.org/t/timestamp-value-change-while-insert-and-select-from-mariadb/3274)

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**Author:** [@tramanah](https://discourse.nodered.org/u/tramanah)\
**Replies:** 8\
**Last updated:** [11 July 2020 08:37 UTC](https://discourse.nodered.org/t/timestamp-value-change-while-insert-and-select-from-mariadb/3274 "2020-07-11T08:37:24Z")

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INSERT 9/20/2018, 12:40:24 AMnode: 4dd4086a.fba828INSERT INTO mytab (DeviceId,Line,outPIN,count,Time) VALUES (?,?,?,?,?) : msg.payload : array\[5\] \[ 2, 1, 7, 1, "2018-09-20 00:40:24" \] SELECT 9/20/2018, 12:40:36 AMnod…

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## [Monitoring the status of a mini-tower of Raspberry Pi(es)](https://discourse.nodered.org/t/monitoring-the-status-of-a-mini-tower-of-raspberry-pi-es/29428)

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**Author:** [@dynamicdave](https://discourse.nodered.org/u/dynamicdave)\
**Replies:** 3\
**Last updated:** [11 July 2020 08:14 UTC](https://discourse.nodered.org/t/monitoring-the-status-of-a-mini-tower-of-raspberry-pi-es/29428 "2020-07-11T08:14:53Z")

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I've just built a mini-tower for some of my old RPi-3s and 2s and thought I would try out SVG to overlay some LEDs (as circles) on top of a photo to show LED status, and some text to indicate the CPU temperature and IP a…

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## [Improved hardware support](https://discourse.nodered.org/t/improved-hardware-support/29643)

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**Author:** [@ozpos](https://discourse.nodered.org/u/ozpos)\
**Replies:** 177\
**Last updated:** [11 July 2020 08:21 UTC](https://discourse.nodered.org/t/improved-hardware-support/29643 "2020-07-11T08:21:20Z")

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## [Serial port install/update problem](https://discourse.nodered.org/t/serial-port-install-update-problem/29821)

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**Author:** [@arpit8851](https://discourse.nodered.org/u/arpit8851)\
**Replies:** 4\
**Last updated:** [11 July 2020 06:26 UTC](https://discourse.nodered.org/t/serial-port-install-update-problem/29821 "2020-07-11T06:26:12Z")

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i want to update serial port in node red but its shown an error can anyone help me { ?2020-07-10T05:49:46.488Z Install : node-red-node-serialport 0.10.3 2020-07-10T05:49:46.500Z npm.cmd install --no-audit --no-update-…

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## [UDP Freeze data](https://discourse.nodered.org/t/udp-freeze-data/29882)

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**Author:** [@abedgarr](https://discourse.nodered.org/u/abedgarr)\
**Replies:** 0\
**Last updated:** [11 July 2020 04:28 UTC](https://discourse.nodered.org/t/udp-freeze-data/29882 "2020-07-11T04:28:11Z")

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Hello I am doing a UDP communication job in Matlab and node red, however the communication I have is slow, especially when I send data from Simulink to node red, I don't know why this could be, I did the test by sending…

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## [Rollease blinds Telnet control](https://discourse.nodered.org/t/rollease-blinds-telnet-control/29835)

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**Author:** [@nzmikechristiansen](https://discourse.nodered.org/u/nzmikechristiansen)\
**Replies:** 1\
**Last updated:** [10 July 2020 22:44 UTC](https://discourse.nodered.org/t/rollease-blinds-telnet-control/29835 "2020-07-10T22:44:17Z")

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Does anyone have any form of control working with rollease blinds using the Pulse 2 hub? There are other integrations with automation systems using telnet so it looks possible. Another open source project hubatat has so…

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## [RED in UI nodes](https://discourse.nodered.org/t/red-in-ui-nodes/29824)

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**Author:** [@BartButenaers](https://discourse.nodered.org/u/BartButenaers)\
**Replies:** 9\
**Last updated:** [10 July 2020 21:51 UTC](https://discourse.nodered.org/t/red-in-ui-nodes/29824 "2020-07-10T21:51:07Z")

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Hi folks, I needed to get a nested property from an input message, so I wrote following snippet $scope.$watch('msg', function(msg) { var someNestedPropertyValue = RED.util.getMessageProperty(....); } However I get "…

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## [Nodered 1.1.1 scrolling on iPad](https://discourse.nodered.org/t/nodered-1-1-1-scrolling-on-ipad/29833)

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**Author:** [@bdormael](https://discourse.nodered.org/u/bdormael)\
**Replies:** 6\
**Last updated:** [10 July 2020 21:07 UTC](https://discourse.nodered.org/t/nodered-1-1-1-scrolling-on-ipad/29833 "2020-07-10T21:07:21Z")

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Since version 1.1 when I open Nodered on my iPad Pro, I'm not able to scroll down/up anymore via touch screen in my flows. (with mouse attached to iPad I can scroll) Anybody elese experiencing this ? I've tried 2 iPads…

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## [Node-RED online conference on October 10th](https://discourse.nodered.org/t/node-red-online-conference-on-october-10th/29750)

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**Author:** [@kazuhitoyokoi](https://discourse.nodered.org/u/kazuhitoyokoi)\
**Replies:** 1\
**Last updated:** [10 July 2020 20:42 UTC](https://discourse.nodered.org/t/node-red-online-conference-on-october-10th/29750 "2020-07-10T20:42:39Z")

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Hello! Node-RED User Group Japan is going to hold the Node-RED conference on October 10th. Because of online conference, everyone can join the free event from YouTube Live. In our plan, more than 20 great speakers w…

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## [NR 1.1.0 Update Issues](https://discourse.nodered.org/t/nr-1-1-0-update-issues/29838)

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**Author:** [@lstebe](https://discourse.nodered.org/u/lstebe)\
**Replies:** 11\
**Last updated:** [10 July 2020 20:38 UTC](https://discourse.nodered.org/t/nr-1-1-0-update-issues/29838 "2020-07-10T20:38:19Z")

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Hi and Thanks for the great improvements implemented in the new NR1.1! I'm coming directly from NR 1.0.6 and got it running on different machines. RPi4, "High" Performance Server (10core AMD DDR4 RAM ubuntu and so on) …

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## [Updating node-RED - settings.js](https://discourse.nodered.org/t/updating-node-red-settings-js/29741)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 11\
**Last updated:** [10 July 2020 20:32 UTC](https://discourse.nodered.org/t/updating-node-red-settings-js/29741 "2020-07-10T20:32:53Z")

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I always update node-RED by using the official script, and was already aware that the existing settings.js file (from the old node-RED) in not overwritten when the new version is installed. However, new features are add…

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## [PID controlled heater](https://discourse.nodered.org/t/pid-controlled-heater/29391)

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**Author:** [@h2omatt](https://discourse.nodered.org/u/h2omatt)\
**Replies:** 23\
**Last updated:** [10 July 2020 19:35 UTC](https://discourse.nodered.org/t/pid-controlled-heater/29391 "2020-07-10T19:35:31Z")

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All, New-ish to node red but have been using it in many applications and it has helped significantly reduce time to create a program with a simple UI that can be used in a lab environment. hopeing someone can help me on…

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## [Switch node - jsonata - magic?](https://discourse.nodered.org/t/switch-node-jsonata-magic/12943)

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**Author:** [@bakman2](https://discourse.nodered.org/u/bakman2)\
**Replies:** 26\
**Last updated:** [10 July 2020 18:24 UTC](https://discourse.nodered.org/t/switch-node-jsonata-magic/12943 "2020-07-10T18:24:41Z")

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Example object: { "time\_utc": 1562311572, "Temperature": 21, "CO2": 434, "Humidity": 56, "Noise": 40, "Pressure": 1016.7, "AbsolutePressure": 1016.4, "min\_temp": 20.9, "max\_temp": 21.7, "date\_min\_tem…

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## [Embed node-red inside another application as an iframe with authentication from session](https://discourse.nodered.org/t/embed-node-red-inside-another-application-as-an-iframe-with-authentication-from-session/29867)

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**Author:** [@ashish-y](https://discourse.nodered.org/u/ashish-y)\
**Replies:** 0\
**Last updated:** [10 July 2020 18:16 UTC](https://discourse.nodered.org/t/embed-node-red-inside-another-application-as-an-iframe-with-authentication-from-session/29867 "2020-07-10T18:16:37Z")

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Hi, I want to embed the node-red editor as an iframe inside another js application. Similar to this Also, use the session information acquired from the custom login screen to be used as node-red authentication. Sce…

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## [Epoch time conversion to GMT +8](https://discourse.nodered.org/t/epoch-time-conversion-to-gmt-8/29862)

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**Author:** [@mshaz](https://discourse.nodered.org/u/mshaz)\
**Replies:** 5\
**Last updated:** [10 July 2020 18:11 UTC](https://discourse.nodered.org/t/epoch-time-conversion-to-gmt-8/29862 "2020-07-10T18:11:37Z")

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Hi I got this code from this forum https://discourse.nodered.org/t/converting-epoch-time/9858. How do I convert it to GMT +8. The payload came from a Sigfox device. Thank you

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## [Get data from an array of objects](https://discourse.nodered.org/t/get-data-from-an-array-of-objects/29619)

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**Author:** [@Paul-Reed](https://discourse.nodered.org/u/Paul-Reed)\
**Replies:** 22\
**Last updated:** [10 July 2020 17:30 UTC](https://discourse.nodered.org/t/get-data-from-an-array-of-objects/29619 "2020-07-10T17:30:45Z")

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I'm using Climacell to obtain forecast data which I want to plot in a chart, and despite many attempts over several days, I cannot get the data into the correct format :rage: The api returns an array of about 73 objects…

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## [System Requirements](https://discourse.nodered.org/t/system-requirements/29802)

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**Author:** [@sanserg](https://discourse.nodered.org/u/sanserg)\
**Replies:** 5\
**Last updated:** [10 July 2020 16:53 UTC](https://discourse.nodered.org/t/system-requirements/29802 "2020-07-10T16:53:32Z")

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Hi , does anybody know where can I get some guidance about hardware system requirements to install node-red ? How can I size the node-red infra ? tks

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## [Ui table - Tabulator not found after PC reboot. Permissions problem](https://discourse.nodered.org/t/ui-table-tabulator-not-found-after-pc-reboot-permissions-problem/29841)

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**Author:** [@coppo23](https://discourse.nodered.org/u/coppo23)\
**Replies:** 1\
**Last updated:** [10 July 2020 15:23 UTC](https://discourse.nodered.org/t/ui-table-tabulator-not-found-after-pc-reboot-permissions-problem/29841 "2020-07-10T15:23:21Z")

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Hi I'm well on with node-red-node-ui-table - most things working as expected and getting very nice looking tables. Node red is on a pi and I'm browsing using chrome from PC and android devices.I then rebooted the PC and …

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## [Best DS18B20 Node? Mine doesn't work properly](https://discourse.nodered.org/t/best-ds18b20-node-mine-doesnt-work-properly/29724)

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**Author:** [@oncdastan](https://discourse.nodered.org/u/oncdastan)\
**Replies:** 6\
**Last updated:** [10 July 2020 15:17 UTC](https://discourse.nodered.org/t/best-ds18b20-node-mine-doesnt-work-properly/29724 "2020-07-10T15:17:06Z")

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Hi. I am using this node: But it is not working properly. Please, check this post: I am trying to use a switch, but it responds after the sensor node is done doing its own thing. It works really fast without the no…

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## [Problem Using a Button with DS18B20 Node](https://discourse.nodered.org/t/problem-using-a-button-with-ds18b20-node/29674)

<div class="topic-metadata">

**Author:** [@oncdastan](https://discourse.nodered.org/u/oncdastan)\
**Replies:** 34\
**Last updated:** [10 July 2020 15:15 UTC](https://discourse.nodered.org/t/problem-using-a-button-with-ds18b20-node/29674 "2020-07-10T15:15:27Z")

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Hi. I am using the node below: The problem is, I need to control a relay with a button on the screen, but for now, I am using an LED to see if it works or not. When I click on it, it takes 2-3 seconds for LED to light…

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## [Subflow input output wires disappear](https://discourse.nodered.org/t/subflow-input-output-wires-disappear/23630)

<div class="topic-metadata">

**Author:** [@r0ller](https://discourse.nodered.org/u/r0ller)\
**Replies:** 28\
**Last updated:** [10 July 2020 15:14 UTC](https://discourse.nodered.org/t/subflow-input-output-wires-disappear/23630 "2020-07-10T15:14:27Z")

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Hi All, I hope it fits the category chosen since wiring is a pretty basic functionality in node-red. The problem is that no clue why and when but sometimes the wires from my subflow inputs to the first node disappear (a…

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## [Converting epoch time](https://discourse.nodered.org/t/converting-epoch-time/9858)

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**Author:** [@Sirhc](https://discourse.nodered.org/u/Sirhc)\
**Replies:** 4\
**Last updated:** [10 July 2020 13:25 UTC](https://discourse.nodered.org/t/converting-epoch-time/9858 "2020-07-10T13:25:09Z")

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Hello I have the following code in a function node. I am trying to convert string\_lastseen into a readable format (string\_lastseen = 1554625504). But the date function keeps returning what looks like the current time/da…

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## [\[Solved\] Is it possible to have a button close the webpage it is on? {TLTR: NO}](https://discourse.nodered.org/t/solved-is-it-possible-to-have-a-button-close-the-webpage-it-is-on-tltr-no/29847)

<div class="topic-metadata">

**Author:** [@zenofmud](https://discourse.nodered.org/u/zenofmud)\
**Replies:** 2\
**Last updated:** [10 July 2020 12:41 UTC](https://discourse.nodered.org/t/solved-is-it-possible-to-have-a-button-close-the-webpage-it-is-on-tltr-no/29847 "2020-07-10T12:41:01Z")

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What I have are sime LINKs in the dashbaord that open another device's NR dashboard. On the other device, I want a button that will close that window/tab. Is it possible?

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## [Make my flow available to everyone](https://discourse.nodered.org/t/make-my-flow-available-to-everyone/29839)

<div class="topic-metadata">

**Author:** [@Sanju\_Shastry](https://discourse.nodered.org/u/Sanju_Shastry)\
**Replies:** 4\
**Last updated:** [10 July 2020 12:12 UTC](https://discourse.nodered.org/t/make-my-flow-available-to-everyone/29839 "2020-07-10T12:12:23Z")

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Hi Community. I am very new to Node- Red and its my first question here. So it might sound a bit naive. Apologies for that. I have created a flow for my project and I was curious if I can publish this whole flow somewh…

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## [Multiple NodeRed Instances on different Ports - Linux/SystemD](https://discourse.nodered.org/t/multiple-nodered-instances-on-different-ports-linux-systemd/9555)

<div class="topic-metadata">

**Author:** [@Dustin](https://discourse.nodered.org/u/Dustin)\
**Replies:** 26\
**Last updated:** [10 July 2020 10:11 UTC](https://discourse.nodered.org/t/multiple-nodered-instances-on-different-ports-linux-systemd/9555 "2020-07-10T10:11:27Z")

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I know this has been addressed because I've made it work in the past, so I apologize for rehashing an already discussed topic... but I can't seem to find the instructions again. I've tried multiple times using some of th…

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