ZoneMinder Wiki - Recent changes [en]

Single Board Computers

Burger — Thu, 03 Sep 2026 21:52:01 GMT

General Tips

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	The following pages cover Single Board Computers with Zoneminder.		The following pages cover Single Board Computers with Zoneminder.

	Traditionally, these are ARM based; The Raspberry Pi, The Beaglebone, and others. For those not experienced with ARM these devices ~~perform at level below~~ an x86 based ~~motherboard~~, yet offer lower power consumption and ~~purchase~~ cost. When using an ARM board, it is recommended to run cameras at lower resolutions (e.g. 640x480 or 800x600), and lower frame rates. Additionally, zones should be smaller, as analysis of motion will use up CPU. Alternatively, you can avoid Modect and Mocord and use Record.		Traditionally, these are ARM/RISCV based; The Raspberry Pi, The Beaglebone, and others. For those not experienced with ARM these devices have less CPU ability than an x86 based computer, yet offer lower power consumption (and sometimes less cost, though used x86 laptops are very cheap). When using an ARM board, it is recommended to run cameras at lower resolutions (e.g. 320x240, 640x480, or 800x600), and lower frame rates. Additionally, zones should be smaller, as analysis of motion will use up CPU. Alternatively, you can avoid Modect and Mocord and use Record only, with camera passthrough direct to the hdd, which will be efficient.

	Single Board Computers ~~(ARM)~~ work well for a small home setup, or as an adjunct to a larger camera system. For large camera systems, they are not ~~usually~~ powerful enough.		Single Board Computers work well for a small home setup (maybe 4-8 cameras), or as an adjunct to a larger camera system. For large camera systems, they are probably not powerful enough. As an accessory to a larger system, you might setup an SBC to record only certain cameras, while being located in a different place from the main server, as a second source in case of theft/fire of the main server.


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	* [[Raspberry Pi 4 - Raspbian]] - Uses Buster. Applicable to other RPIs that have Buster.		* [[Raspberry Pi 4 - Raspbian]] - Uses Buster. Applicable to other RPIs that have Buster.

			* [https://wiki.alpinelinux.org/wiki/ZoneMinder_video_camera_security_and_surveillance Raspberry Pi 4 - Alpine] - Tested with 1.38.

	* [[Odroid - XU4 - Ubuntu Mate]]		* [[Odroid - XU4 - Ubuntu Mate]]
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	* [https://forums.zoneminder.com/viewtopic.php?f=9&t=27402 How to setup an Orange Pi PC2 with 3 USB cams as RTSP server]		* [https://forums.zoneminder.com/viewtopic.php?f=9&t=27402 How to setup an Orange Pi PC2 with 3 USB cams as RTSP server]

	==General Tips==		==Tips/Techniques==
			===General Tips===
	* Disable all logging and any data collection (''RECORD_EVENT_STATS'' - See ''Logging'' tab) on ARM boards if you are running a flash based HD.		* Disable all logging and any data collection (''RECORD_EVENT_STATS'' - See ''Logging'' tab) on ARM boards if you are running a flash based HD.

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	* Resolution		* Resolution
	* FPS (on camera only)		* FPS (on camera only)
	* Analysis zone size or change from Mocord to Record.		* Analysis zone size or change from Mocord to Record. See: [https://wiki.zoneminder.com/Dummies_Guide#Monitor_Settings_in_Zoneminder Link here].
	* Limit analysis FPS (motion detection uses the most CPU)		* Limit analysis FPS (motion detection uses the most CPU)
			* Use an external HDD for the DB and [https://wiki.zoneminder.com/Using_a_dedicated_Hard_Drive video storage.]
			* Alpine has a RAM only install that may wear down the sd card less.



	===GPU Memory===		===GPU Memory===
	User from the forum reports that adjusting GPU memory will improve RPI4 performance with ZM.		User from the forum reports that adjusting GPU memory will improve RPI4 performance with ZM (this is only needed when using motion detection. If you passthrough direct to the hdd, it can be skipped). [http://forums.zoneminder.com/viewtopic.php?f=39&t=28614&p=113082][http://forums.zoneminder.com/viewtopic.php?f=38&t=28706&p=112388]

	http://forums.zoneminder.com/viewtopic.php?f=39&t=28614&p=113082&~~hilit~~=~~gpu~~&~~sid~~=~~20dae3382577cc3019eac3b60d3bcfac#p113082~~

	'''piflipper''': ''I had the same issue, to solve it I upped the GPU memory to 512MB, via raspi-config and everything started working. Now have 3 cameras working without any issues.''		'''piflipper''': ''I had the same issue, to solve it I upped the GPU memory to 512MB, via raspi-config and everything started working. Now have 3 cameras working without any issues.''

	~~http://forums.zoneminder.com/viewtopic.php?f=38&t=28706&p=112388&hilit=gpu&sid=20dae3382577cc3019eac3b60d3bcfac#p112388~~

	'''fatboy''': ''Working great now! Increase GPU memory: ''/boot/config.txt'' - gpu_mem=512''		'''fatboy''': ''Working great now! Increase GPU memory: ''/boot/config.txt'' - gpu_mem=512''

Zoneminder 1.38.x on Supported Debian Versions

Bbunge — Wed, 02 Sep 2026 13:02:35 GMT

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	I recommend rebooting at this point but a log out and back in also works.		I recommend rebooting at this point but a log out and back in also works.

			Debian 13 is now putting the /tmp directory into RAM which can cause issues. I recommend running this command to move yjr /tmp to the hard drive:

			systemctl mask tmp.mount

			A reboot is required.

	Timezone: it is recommended you set your specific timezone with:		Timezone: it is recommended you set your specific timezone with:

External Live Stream

Burger — Wed, 26 Aug 2026 17:46:43 GMT

Imagemap

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	Here are some examples of embedding the ZM camera stream in a webpage.		Here are some examples of embedding the ZM camera stream in a webpage. These are tested in 1.36.

	==Webpage to View Streams (non-API)==		==Webpage to View Streams (non-API)==
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	==Imagemap of Cameras==		==Imagemap of Cameras==
	[[File:Output5.gif\|300px\|thumb\|right\|Imagemap as the GUI for Zoneminder is very effective, albeit this example is blurred for privacy sake. Trust me that it is better than it appears here.]]		[[File:Output5.gif\|300px\|thumb\|right\|Imagemap as the GUI for Zoneminder is very effective, albeit this example is blurred for privacy sake. Trust me that it is better than it appears here.]]
	If you only have 1 or 2 cameras, this probably isn't relevant, however if you have a larger installation, it can be slow and cumbersome to use the ZM gui to view cameras. ~~The~~ solution is to make an HTML imagemap, and an iframe, and view the cameras from a custom webpage.		If you only have 1 or 2 cameras, this probably isn't relevant, however if you have a larger installation, it can be slow and cumbersome to use the ZM gui to view cameras. One solution is to make an HTML imagemap, and an iframe, and view the cameras from a custom webpage.

	===Overview===		===Overview===
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	You wouldn't want to make the code from scratch, that would be tedious, so instead use an imagemap generator. The one I used which worked well was https://github.com/n-peugnet/image-map-creator and the live instance here: https://n-peugnet.github.io/image-map-creator/		You wouldn't want to make the code from scratch, that would be tedious, so instead use an imagemap generator. The one I used which worked well was https://github.com/n-peugnet/image-map-creator and the live instance here: https://n-peugnet.github.io/image-map-creator/
	~~Unfortunately~~ I ~~wasn't easily able to find one~~ that ~~could be self-hosted~~ (~~which is preferred~~). Import your graphic and make circles (a 2nd time) where your circles on the graphic are. Make sure to add labels to all the circles (right click) this way you can find them in the code later. Let's use the following map image.		I recently also learned that GIMP (3.0.4 tested) has one built in. Find it in Filters - Web - Image Map. Import your graphic and make circles (a 2nd time) where your circles on the graphic are. Make sure to add labels to all the circles (right click) this way you can find them in the code later. Let's use the following map image.

	[[File:Map.png\|400px\|\|\|]]		[[File:Map.png\|400px\|\|\|]]
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	</pre>		</pre>
	This image map HTML will need some editing after the fact. In particular, you will want to delete the nohref, as we will be filling in the details for the URLs later. Also the URLs will go at the end of the tag, so the sed command mentioned above for the API works properly.		This image map HTML will need some editing after the fact. In particular, you will want to delete the nohref, as we will be filling in the details for the URLs later. Also the URLs will go at the end of the tag, so the sed command mentioned above for the API works properly.

	====Webpage with iframe====		====Webpage with iframe====
	I'm going to jump ahead with an example for brevity's sake. This page will include the bare minimum to get a working page similar to the gif above. We will use the javascript reload from the API example above, as well as the script to refresh the tokens on the webpage. It's assumed you are hosting the page on the same server as the cameras. Please read the comments on the HTML for important notes on this setup if this is new to you.		I'm going to jump ahead with an example for brevity's sake. This page will include the bare minimum to get a working page similar to the gif above. We will use the javascript reload from the API example above, as well as the script to refresh the tokens on the webpage. It's assumed you are hosting the page on the same server as the cameras. Please read the comments on the HTML for important notes on this setup if this is new to you.

Arduino

Burger — Mon, 24 Aug 2026 15:55:16 GMT

Other

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	This page is for electronic hardware built for use w/ZM. Not limited to Arduino, but most electronics built so far has used it for speed. The benefits of hardware is that it can avoid the use of CPU analysis of images, or allow for speakers, sirens, or other devices to interface w/ZM.		This page is for electronic hardware built for use w/ZM. Not limited to Arduino, but most electronics built so far has used it for speed. The benefits of hardware is that it can avoid the use of CPU analysis of images, or allow for speakers, sirens, or other devices to interface w/ZM.

	[[File:ArduinoUno.jpg\|thumb\|right\|upright=0.5\|alt=Uno\|\|Arduino Uno ~~DIP~~]]		[[File:ArduinoUno.jpg\|thumb\|right\|upright=0.5\|alt=Uno\|\|Arduino Uno]]

	Uses of external hardware for Zoneminder might be:		Uses of external hardware for Zoneminder might be:
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	===Other===		===Other===

	* [https://git.steakelectronics.com/adminguy/ZMHW_Map] Make a map of a ZM installation. Requires the ability to design a PCB.		* [https://web.archive.org/web/20240714103811/http://git.steakelectronics.com/adminguy/ZMHW_Map] Make a map of a ZM installation. Requires the ability to design a PCB. Note that this can also be done in software, and has been documented here: [[External_Live_Stream]] .

	==See Also==		==See Also==

ZMTrigger

Burger — Mon, 24 Aug 2026 15:52:45 GMT

Notes

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	/usr/bin/zmtrigger.pl (debian location) is an optional program for Zoneminder that listens on the network for commands. Read the perl script for more information. It is a telnet server.		/usr/bin/zmtrigger.pl (debian location) is an optional program for Zoneminder that listens on the network for commands. Read the perl script for more information. It is a telnet or TCP server.

	It can be used in different ways.		It can be used in different ways.

	'''1)''' it can be used is to overlay text information (e.g. temperature sensor) onto the video feed.		'''1)''' It can be used is to overlay text information (e.g. temperature sensor) onto the video feed.

	'''2)''' It can also be used as an external trigger / alarm source for cameras. By using an external alarm, you can avoid some of the problems inherent in ZM software modect - false alarms, and CPU usage. False alarms are commonly caused when the video feed has an ambient change come across it, e.g. weather events, wildlife, or the transition from daylight to night ir filter.		'''2)''' It can also be used as an external trigger / alarm source for cameras. By using an external alarm, you can avoid some of the problems inherent in ZM software modect - false alarms, and CPU usage. False alarms are commonly caused when the video feed has an ambient change come across it, e.g. weather events, wildlife, or the transition from daylight to night ir filter.

	'''3)''' You can monitor which alarms are active or not at a given time. ZMTrigger reports when alarms are active, and when they are closed. This data can be queried by external programs.		'''3)''' You can monitor which alarms are active or not at a given time. ZMTrigger reports when alarms are active, and when they are closed. This data can be queried by external programs.

			'''4)''' It can be used as a standalone alarm system. In this scenario, you would not have cameras, and instead only have devices that send TCP packets to the ZMTrigger daemon. For example, you might install a motion sensor using [[Arduino]] and then have it report to the ZM server.

	Note that if you have a house, or single breaker, you might want to consider using [[X10]] for Zoneminder. This will save you the need for ethernet wiring, or setting up wifi.		Note that if you have a house, or single breaker, you might want to consider using [[X10]] for Zoneminder. This will save you the need for ethernet wiring, or setting up wifi.
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	<pre>1\|show\|\|\|\|testingOSD</pre>		<pre>1\|show\|\|\|\|testingOSD</pre>
	then press return.		then press return.

			Alternatively, you can run a one line command with your choice of program to send a tcp packet. Such as: [https://forums.zoneminder.com/viewtopic.php?p=140425]
			printf '6\|on\|1\|motion\|\|\|\|\n' \| socat - TCP:127.0.0.1:6802


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	====Types of Controllers====		====Types of Controllers====
	[[File:ArduinoUno.jpg\|thumb\|right\|upright=0.5\|alt=Uno\|\|Arduino Uno ~~DIP~~]]		[[File:ArduinoUno.jpg\|thumb\|right\|upright=0.5\|alt=Uno\|\|Arduino Uno. Note that you may get lower power usage with other options such as a Nano or Pro Micro.]]
	This is up to you. If you have a wired ethernet connection available for the external sensor, then an [[Arduino]] Uno is a good choice. If you don't want to run ethernet, then an ESP8266 or Arduino w/wifi should do. An Arduino Uno will require a separate ethernet board. You can also connect an Arduino via USB, if the computer is within 15 feet.		This is up to you. If you have a wired ethernet connection available for the external sensor, then an [[Arduino]] Uno is a good choice. If you don't want to run ethernet, then an ESP8266 or Arduino w/wifi should do. An Arduino Uno will require a separate ethernet board. You can also connect an Arduino via USB, if the computer is within 15 feet.

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	* "Can I have these arduino sketches set off multiple cameras?" Yes. You can edit the Arduino sketch to send more packets, or "link monitors" in Zoneminder. Two approaches (the latter is easier). https://forums.zoneminder.com/viewtopic.php?f=36&t=26794		* "Can I have these arduino sketches set off multiple cameras?" Yes. You can edit the Arduino sketch to send more packets, or "link monitors" in Zoneminder. Two approaches (the latter is easier). https://forums.zoneminder.com/viewtopic.php?f=36&t=26794

			* If using an ethernet or wifi based device, you will want to consider low power modes. For example, on the ENC28J60, it is possible to include https://github.com/UIPEthernet/UIPEthernet/blob/master/utility/Enc28J60Network.cpp (this is a seperate library, from UIPEthernet) and call the Enc28J60Network::powerOff(void) command to save about 2 watts (from 3 watts to 1).

	== See Also ==		== See Also ==

Talk:Understanding ZoneMinder's Zoning system for Dummies

Pete1 — Wed, 19 Aug 2026 15:53:08 GMT

Created page with "With the exception of one image, all are missing. They all get the following error: Error creating thumbnail: Unable to save thumbnail to destination"

New page

With the exception of one image, all are missing. They all get the following error:

Error creating thumbnail: Unable to save thumbnail to destination

Dummies Guide

Burger — Sat, 15 Aug 2026 14:07:12 GMT

Notes

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	This is a lot of what I know about surveillance cameras and ZM.		This is a lot of what I know about surveillance cameras and ZM (this is based on 1.36).

	~~If you wish to view the full ZM Documentation, I recommend viewing it through the PDF view, as the sphinx website~~ is ~~not efficient and requires javascript. https://zoneminder.readthedocs~~.~~io/en/stable/~~
	~~If you want a hard copy, you can order the documentation through a self publishing service like lulu~~.~~com~~

	Zoneminder is a powerful tool, but it has a learning curve. The forums are there to answer questions. Search then post if its not already answered.		Zoneminder is a powerful tool, but it has a learning curve. The forums are there to answer questions. Search then post if its not already answered.
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	High-end server hardware will perform better than desktop, or low end server hardware. I have seen this firsthand between two servers: KFSN4-DRE and the KGPE-D16. The latter runs ZM with 25+ cameras, not breaking a sweat. The former reaches a limit at about 10. Another limitation is HDD size.		High-end server hardware will perform better than desktop, or low end server hardware. I have seen this firsthand between two servers: KFSN4-DRE and the KGPE-D16. The latter runs ZM with 25+ cameras, not breaking a sweat. The former reaches a limit at about 10. Another limitation is HDD size.

	I currently recommend buying Axis (new is expensive, so you'll probably purchase used), although many do not have IR. This is not a problem, as outdoors IR on cameras attracts spider webs, and external IR is recommended. Another recommended brand is Hikvision. Hikvision can be bought new for a lower price if warranty is an issue (for business clients that can't afford Axis). The cameras work well with ZM, and are configurable without Windows, Otherwise, any respectable name brand camera will work. Look through the hardware compatibility list. Read the user manual before you purchase the camera, and look for the following: Outdoors/indoors, IR/no-IR, Resolution. IR can be supplemented with external appliances~~. You can also put pesticide on the cameras to deter bugs... (although I wouldn't)~~.		I currently recommend buying Axis (new is expensive, so you'll probably purchase used), although many do not have IR. This is not a problem, as outdoors IR on cameras attracts spider webs, and external IR is recommended. Another recommended brand is Hikvision. Hikvision can be bought new for a lower price if warranty is an issue (for business clients that can't afford Axis). The cameras work well with ZM, and are configurable without Windows, Otherwise, any respectable name brand camera will work. Look through the hardware compatibility list. Read the user manual before you purchase the camera, and look for the following: Outdoors/indoors, IR/no-IR, Resolution. IR can be supplemented with external appliances.

	=== A note on Analog Cameras ===		=== A note on Analog Cameras ===

	There is an option to use a coax to ethernet adapter. You need two pieces. One is the sender, one is the receiver. They may or may not be identical. These allow the use of IP Cameras over coax. Search ebay. Altronix ebridge ones are about $120 for a pair or adapters (you need a pair for each camera). If this is too much money, you may keep the old coax cameras. See: IP Video Encoders [https://wiki.zoneminder.com/Hardware_Compatibility_List#IP_Video_Encoder]. Honestly, just run ethernet if you have a chance. Customers expect HD these days.		There is an option to use a coax to ethernet adapter. You need two pieces. One is the sender, one is the receiver. They may or may not be identical. These allow the use of IP Cameras over coax. Search ebay. Altronix ebridge ones are about $120 for a pair or adapters (you need a pair for each camera). If this is too much money, you may keep the old coax cameras. See: IP Video Encoders [https://wiki.zoneminder.com/Hardware_Compatibility_List#IP_Video_Encoder]. Honestly, just run ethernet if you have a chance. Customers expect HD these days. You will need a good coaxial crimper. There are a lot of poor ones out there. Do some research.

	I have not worked with HD analog over coax, and I don't recommend it. I did try to keep old coax cameras but they became obsolete. IP cameras are the way to go.		I have not worked with HD analog over coax, and I don't recommend it. I did try to keep old coax cameras but they became obsolete. IP cameras are the way to go.
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	* Spec the network cabling properly. You must not run out of bandwidth. Large installs might have multiple seperate cabling networks.		* Spec the network cabling properly. You must not run out of bandwidth. Large installs might have multiple seperate cabling networks.
	* UDP can be used to get a lower overhead / more efficient connections for bandwidth (reference: The Switch Book by Rich Seifert).		* UDP can be used to get a lower overhead / more efficient connections for bandwidth (reference: The Switch Book by Rich Seifert).
			* Multicast is also something to consider.
	* The ZM DB can get corrupted if there are a lot of connections and then the power goes out (at least in 1.36). You will want a UPS, and or a managed switch where you shut off the cameras trying to contact the server so ZM can close the logs properly. I have found that DB corruption is common in a large install but uncommon with small setups.		* The ZM DB can get corrupted if there are a lot of connections and then the power goes out (at least in 1.36). You will want a UPS, and or a managed switch where you shut off the cameras trying to contact the server so ZM can close the logs properly. I have found that DB corruption is common in a large install but uncommon with small setups.
	* You will want to keep additional HDDs in stock to reduce downtime (they will fail, it's just a matter of time).		* You will want to keep additional HDDs in stock to reduce downtime (they will fail, it's just a matter of time).
			* Use JBOD raid.
			* Put the DB on its own SSD.
			* There is a multi server option (it does something where it shares the DB across multiple servers). I haven't used it. You can also just run multiple servers without using "multi server".
			* To save on energy usage, you might want to setup managed switches that can turn off the POE for some cameras during holidays / weekends.

	==Troubleshooting==		==Troubleshooting==
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	* Advice on tuning apache for more 'workers': https://forums.zoneminder.com/viewtopic.php?p=136440#p136440 (Note that I have not found this necessary with ~40 cameras)		* Advice on tuning apache for more 'workers': https://forums.zoneminder.com/viewtopic.php?p=136440#p136440 (Note that I have not found this necessary with ~40 cameras)

	* For large ZM setups, you may want the DB to be on its own hdd/ssd, otherwise you could run into corruption as in the notes section of [[MySQL]].

	* For larger setups, consider using multicast on the cameras to avoid bandwidth limitations. Zoneminder also indicates the bandwidth in >=1.34 on the web console. https://learncctv.com/multicast-on-axis-cameras/		* For larger setups, consider using multicast on the cameras to avoid bandwidth limitations. Zoneminder also indicates the bandwidth in >=1.34 on the web console. https://learncctv.com/multicast-on-axis-cameras/

	* ~~The~~ trick to having a hundred cameras or more, is that you have to divide up the networks (the ethernet cable can only carry so much traffic), and have multiple ZM servers. So you would run seperate ethernet networks, and have multiple ZM servers.		* One trick to having a hundred cameras or more, is that you have to divide up the networks (the ethernet cable can only carry so much traffic), and have multiple ZM servers. So you would run seperate ethernet networks, and have multiple ZM servers.

	* If there is a lot of Mocord footage to run through, I find it easier to use Filezilla to download a sequence of videos (i.e. one or two hours worth) to my local machine, then fast forward through them with mpv, VLC, or mplayer.		* If there is a lot of Mocord footage to run through, I find it easier to use Filezilla to download a sequence of videos (i.e. one or two hours worth) to my local machine, then fast forward through them with mpv, VLC, or mplayer.
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	* You will have to review zones periodically, as it's possible for things to change. As an example, at an office a new credit card reader was installed which had a light that blinked on it 24/7. This caused unnecessary events at night with modect (due to glare from the LEDs), which also caused ZMES to run in the background, wasting CPU cycles to check the footage. While the incorrect events could be deleted with a filter, it was important to tune the zone, so that the events wouldn't be created, and would not run ZMES. These false events can end up filling up the hdd, taking up space that otherwise could be used for actual events.		* You will have to review zones periodically, as it's possible for things to change. As an example, at an office a new credit card reader was installed which had a light that blinked on it 24/7. This caused unnecessary events at night with modect (due to glare from the LEDs), which also caused ZMES to run in the background, wasting CPU cycles to check the footage. While the incorrect events could be deleted with a filter, it was important to tune the zone, so that the events wouldn't be created, and would not run ZMES. These false events can end up filling up the hdd, taking up space that otherwise could be used for actual events.

	* If possible, you might want to consider shutting off cameras when they are not needed to save on energy use. A managed POE switch should be able to do this. Cameras, are about ~~500mA~~ of 12V so that is perhaps 6W each.		* If possible, you might want to consider shutting off cameras when they are not needed to save on energy use. A managed POE switch should be able to do this. Cameras are about 300mA of 12V so that is perhaps 3-5W each. Refer to each cameras manual for the exact numbers. IR cameras will use more power.

	* ~~UDP~~ has ~~lower overhead than TCP~~ and ~~in large installations you may want~~ to ~~use it~~.		* You might think that you want to record high res footage only. But consider that the low resolution footage has some advantages (i.e. to have both). It is quick to download low res footage, and also seeking with a video player is very fast. You can playback low resolution footage at 10 or 20x speed, whereas trying to do that with 2K or 4K video won't be feasible with most computers.

	==See Also==		==See Also==