Logic.Monitor (PowerShell) module
If you're a LogicMonitor user looking to streamline your workflows and automate repetitive tasks, you'll be pleased to know that there's is a PowerShell module available to help you do just that. As a longtime Windows administrator, I've relied on PowerShell as my go-to tool for automating and managing my infrastructure. I've found that the ability to automate tasks through PowerShell not only saves time, but also reduces errors and ensures consistency across the environment. Developed by myself as a personal side project, this module provides a range of cmdlets that can be used to interact with the LogicMonitor API, making it easier than ever to manage your monitoring setup directly from the command line. Whether you're looking to retrieve information about your monitored devices, update alert thresholds, or perform other administrative tasks, this module has you covered. In this post, we'll take a closer look at the features and capabilities of this module, and show you how to get started with using it in your own automation scripts. This project is published in the PowerShell Gallery at https://www.powershellgallery.com/packages/Logic.Monitor/. Installation From PowerShell Gallery: Install-Module -Name "Logic.Monitor" Upgrading: #New releases are published often, to ensure you have the latest version you can run: Update-Module -Name "Logic.Monitor" General Usage: Before you can use on module commands you will need to be connected to a LM portal. To connect your LM portal use the Connect-LMAccount command: Connect-LMAccount -AccessId "lm_access_id" -AccessKey "lm_access_key" -AccountName "lm_portal_prefix_name" Once connected you can then run an appropriate command, a full list of commands available can be found using: Get-Command -Module "Logic.Monitor" To disconnect from an account simply run the Disconnect-LMAccount command: Disconnect-LMAccount Examples: Most Get commands can pull info by id or name to allow for easier retrieval without needing to know the specific resource id. The name parameters in get commands can also accept wildcard values. Get list of devices: #Get all devices Get-LMDevice #Get device via id Get-LMDevice -Id 1 #Get device via hostname Get-LMDevice -Name device.example.com #Get device via displayname/wildcard Get-LMDevice -DisplayName "corp*" Modify a device: #Change device Name,DisplayName,Descrition,Link and set collector assignment Set-LMDevice -Id 1 -DisplayName "New Device Name" -NewName "device.example.com" -Description "Critical Device" -Link "http://device.example.com" -PreferredCollectorId 1 #Add/Update custom properties to a resource and disable alerting Set-LMDevice -Id 1 -Properties @{propname1="value1";propname2="value2"} -DisableAlerting $true ***Using the Name parameter to target a resource during a Set/Remove command will perform an initial get request for you automatically to retrieve the required id. When performing a large amount of changes using id is the preferred method to avoid excessive lookups and avoid any potential API throttling. Remove a device: #Remove device by hostname Remove-LMDevice -Name "device.example.com" -HardDelete $false Send a LM Log Message: Send-LMLogMessage -Message "Hello World!" -resourceMapping @{"system.displayname"="LM-COLL"} -Metadata @{"extra-data"="value";"extra-data2"="value2"} Add a new user to LogicMonitor: New-LMUser -RoleNames @("administrator") -Password "changeme" -FirstName John -LastName Doe -Email jdoe@example.com -Username jdoe@example.com -ForcePasswordChange $true -Phone "5558675309" There are over ~150 cmdlets exposed as part of this module and more are being added each week as I receive feedback internally and from customers. For more details and other examples/code snippets or to contribute you can visit the github repo where this is hosted. Source Repository:https://github.com/stevevillardi/Logic.Monitor Additional Code Examples:https://github.com/stevevillardi/Logic.Monitor/blob/main/EXAMPLES.md Note: This is very much a personal project and not an official LogicMonitor integration. If the concept of a native PowerShell module interest you, I would recommend putting in a feedback request so that the demand can be tracked.
Monitoring folders on Windows servers
I was recently asked by a customer if it was possible to monitor the size of a folder or the file count in a folder on a Windows server. Well there sure is, <whistles> YO UNC Monitor- come on down. UNC Monitor- is part of the Core DS, the DSs that are installed by default when LogicMonitor is first deployed. As seen on the UNC Monitor Description section: Great, there is a way to do this. Ok how do I do this? Hmm? Well looking at the next section of the DS, Technical Notes. Add an instance manually, oooohh k. But how do I perform this specific voodoo? Hmm maybe if I look further down on the DS? Ok there is the Groovy Script, what do I get when I run the Test Script? Ok so I do have 5 folders that contain 41 files using a total of 7,013 KB. Great that’s some info but still not what I need for a path and I still don’t know how to “add the instance manually” Maybe there is some documentation on how to do this? Oh yeah it’s right here Step 2 states “click the down arrow icon button located next to the manage button for that device. From this dropdown menu, select “Add Other Monitoring” So now I know the steps I need to take and I know that there are folders that are shared. How do I know what the shared folders are without having to log onto the server? That’s where the debug facility comes in for help. The easiest way to access debug is open any raw data screen and click on debug You will be presented with all the available commands. To assist in finding the available folder shared we will be using !wmi If you aren’t familiar with any command just type the command and you will be presented with information. In this case I want to show the shared folders on this server. With a bit of knowledge on Win32 Classes we can find this info. I’ll cover Win32 Classes in another post. Now I have everything I need to get this folder monitored through UNC, RIGHT?!? RIGHT?!? I’m looking at the device and there is no DS for UNC showing How do I add it manually if I don’t have DS ugggh. Since I have my handy dandy info from the documentation I know I need to: Once you click on that you get Add a name as you want it to show up on the instance list. Then you can add a path from the list that was obtained through leveraging the debug facility. Once both of those are filled in,hit save twice and tada you get And more importantly you now have alert tuning that you can perform on this specific UNC drive
Datasource to monitor Windows Services/Processes automatically?
Hello, We recently cloned 2 Logic Monitor out of the box datasources (name ->WinService- & WinProcessStats-) in order to enable the 'Active Discovery' feature on those. We did this becausewe've the need to discover services/processesautomatically, since we don't have an 'exact list' of which services/processes we should monitor (due to the amount of clients [+100] & the different services/solutions across them) After enabling this it works fine & does what we expect (discovers all the services/processes running in each box),we further added some filters in the active discovery for the servicesin order to exclude common 'noisy' services & grab only the ones set to automatically start with the system. Our problem arrives when these 2specific datasourcestartto impact the collector performance (due to the huge amount of wmi.queries), it starts to reflect on a huge consumption of CPU(putting thaton almost 100% usage all the time) & that further leads to the decrease of the collector performance & data collection (resulting in request timeouts & full WMI queues). We also thought on creating 2 datasources(services/processes) for each client (with filters to grab critical/wanted processes/services for the client in question) but that's a nightmare(specially when you've clients installing applications without any notice & expecting us to automatically grab & monitor those). Example of 1 of our scenarios (1of our clients): - Collector is a Windows VM (VMWare)&has 8GB of RAM with4 allocated virtual processors (host processor is a Intel Xeon E5-2698v3 @ 2.30Ghz) - Currently, it monitors 78 Windows servers (not including the collector) & those 2datasourceare creating 12 700 instances (4513 - services | 8187 - processes) - examples below This results in approx. 15 requests per second This results in approx. 45 requests per second According to the collector capacity document (ref. Medium Collector) we are below the limits (forWMI), however, those 2 datasourceare contributing A LOT to make the queues full. We're finding errors in a regular basis- example below To sum thisup, we were seeking for another 'way' of doing the same thing without consuming so much resources on the collector end (due to the amount of simultaneousWMI queries). Not sure if that's possible though. Did anyone had this need in the past & was able to come up with a differentsolution (not so resource exhaustive)? We're struggling here mainly because we come from a non-agent less solution (which didn't facedthis problem due to the individual agentdistributed load - per device). Appreciate the help in advance! Thanks,Windows System Event Log "message" details not accurate
We are using the defaultWindows System Event Log event source and having those errors route through a Teams integration. When tested fromWindows System Event Log event source the Event Logging displays the entire “message” detailing the eventID reason etc etc. When looking in the Alerts section of the GUI it also shows the entire “Message” section with details. However when the alert shows up in Teams its dumbed down and useless. We get the following. Message: error - HOSTNAME Windows System Event Log The Teams integration is setup identically to the Event Source Alert message as seen below. Anyone know why ##Message## is getting overwritten with useless info instead of the actual message details from the Event? Host: ##HOST## Eventsource: ##EVENTSOURCE## Windows Event ID: ##EVENTCODE## Message: ##MESSAGE## Detected on: ##START##When an anomaly isn't an anomaly what could i do?
What can i do when anomaly detection wont work ( something that is seen on a regular basis, and dynamic threshold also wont help where it is within range? For example a drive on a server gets filled with data ( drive is normally cleared down on a daily basis ) but when someone decides to upload a larger than expected amount the drive hasn't been cleared or with other uploads throughout the day there isn't enough space. You are happy if the drive is above 80% during the night because if it hasn't cleared it can be dealt with in the morning ( no need to get anyone out of bed ) but if there is a rapid spike ( more than 2.5% growth in used space in a 30min period ) then they need an alert to get out of bed and fix / make enough room for the data. A possible solution is a datasourcethat will alert if the drive is over the 80% but only with that rapid growth. DataSource calls the api for the last 30min worth of data and calculates the growth rate. The below is the code for a C drive but the drive letter can be changed easily in the code below, same with the 2.5% and the 80% values, they could also be parameterised for different ranges on different devices. <# Use TLS 1.2 #> [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 <# account info #> $accessId = '##apiaccessid.key##' $accessKey = '##apiaccesskey.key##' $company = '##company##' $deviceId = "##system.deviceId##" <# request details #> $httpVerb = 'GET' $resourcePath = "/device/devices/$deviceId/devicedatasources" $queryParams = '?filter=dataSourceName:"WinVolumeUsage-"' <# Construct URL #> $url = 'https://' + $company + '.logicmonitor.com/santaba/rest' + $resourcePath + $queryParams <# Get current time in milliseconds #> $epoch = [Math]::Round((New-TimeSpan -start (Get-Date -Date "1/1/1970") -end (Get-Date).ToUniversalTime()).TotalMilliseconds) <# Concatenate Request Details #> $requestVars = $httpVerb + $epoch + $data + $resourcePath <# Construct Signature #> $hmac = New-Object System.Security.Cryptography.HMACSHA256 $hmac.Key = [Text.Encoding]::UTF8.GetBytes($accessKey) $signatureBytes = $hmac.ComputeHash([Text.Encoding]::UTF8.GetBytes($requestVars)) $signatureHex = [System.BitConverter]::ToString($signatureBytes) -replace '-' $signature = [System.Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($signatureHex.ToLower())) <# Construct Headers #> $auth = 'LMv1 ' + $accessId + ':' + $signature + ':' + $epoch $headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]" $headers.Add("Authorization",$auth) $headers.Add("Content-Type",'application/json') $headers.Add("X-Version","3") <# Make Request #> $response = Invoke-RestMethod -Uri $url -Method $httpVerb -Header $headers <# Get Device DataSource ID #> $deviceDataSourceId = $response.items.id <# request details #> $httpVerb = 'GET' $resourcePath = "/device/devices/$deviceId/devicedatasources/$deviceDataSourceId/data" $queryParams = '' <# Construct URL #> $url = 'https://' + $company + '.logicmonitor.com/santaba/rest' + $resourcePath + $queryParams <# Get current time in milliseconds #> $epoch = [Math]::Round((New-TimeSpan -start (Get-Date -Date "1/1/1970") -end (Get-Date).ToUniversalTime()).TotalMilliseconds) <# Concatenate Request Details #> $requestVars = $httpVerb + $epoch + $data + $resourcePath <# Construct Signature #> $hmac = New-Object System.Security.Cryptography.HMACSHA256 $hmac.Key = [Text.Encoding]::UTF8.GetBytes($accessKey) $signatureBytes = $hmac.ComputeHash([Text.Encoding]::UTF8.GetBytes($requestVars)) $signatureHex = [System.BitConverter]::ToString($signatureBytes) -replace '-' $signature = [System.Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($signatureHex.ToLower())) <# Construct Headers #> $auth = 'LMv1 ' + $accessId + ':' + $signature + ':' + $epoch $headers = New-Object "System.Collections.Generic.Dictionary[[String],[String]]" $headers.Add("Authorization",$auth) $headers.Add("Content-Type",'application/json') <# Make Request #> $response = Invoke-RestMethod -Uri $url -Method $httpVerb -Header $headers <# Print status and body of response #> $status = $response.status $body = $response.data | ConvertTo-Json -Depth 5 function Select-Nth { param([int]$N) $Input | Select-Object -First $N | Select-Object -Last 1 } $array1 = @($response.data.instances.'WinVolumeUsage-C:\'.values) $first = $array1[0] | Select-Nth 3 $last = $array1[19] |Select-Nth 3 $growth = $first - $last if (($growth -gt 2.5) -and ($first -ge 80)){ return 1 }else { return 2 } Hope this gives you some ideas to develop alerting further😁
