Seeking Feedback on My Dynamic Group Synchronization Function

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Asked By CodingNinja42 On

I'm working on a function called 'Invoke-DynamicGroupSync' for synchronizing dynamic groups using Active Directory. This function allows you to use primarily any filter from the Get-ADUser or Get-ADComputer commands as dynamic rules in a config file. It's intended to be run as a scheduled task with credentials managed securely through the PowerShell SecretManagement module. While I'm aware I need to enhance documentation and error logging, I'm really looking for critiques on the structure, readability, and effectiveness of the code thus far. I want to ensure it operates efficiently without relying on third-party tools, especially after realizing my GPOs are heavily dependent on WMI filters which slow down processing significantly. I'm also planning to eventually share this on GitHub once it's polished. Any advice would be greatly appreciated!

4 Answers

Answered By TechGuru99 On

I haven't checked the code thoroughly, but from your description, I suggest considering using gMSAs rather than a regular service account with a static username and password. They can enhance security and management of service accounts significantly.

CodingNinja42 -

For sure! That’s definitely the plan.

Answered By SimplifyDev On

Consider simplifying your code; the hashtables and maps might be overcomplicating things. Here's a streamlined function that achieves what you need without extra layers:

```powershell
function Invoke-DynamicGroupSync {
[CmdletBinding()]
param (
[string]$ConfigPath,
[alias('Server')]
[string]$Domain,
[PSCredential]$Credential
)
Begin {
$paramsAD = @{
Server = $Domain
Credential = $Credential
}
$ruleList = Get-Content -Raw -Path $ConfigPath | ConvertFrom-Json
}
Process {
foreach ($rule in $ruleList) {
$paramsGetObjects = @{
Filter = 'objectclass -eq "{0}" -and ({1})' -f $rule.ObjectType, $rule.Filter
}
$targetObjects = Get-ADObject @paramsGetObjects @paramsAD
# Additional members handling logic...
}
}
}
```
Also, consider adjusting your JSON format to allow for more flexibility across object classes.

CodingNinja42 -

While I prefer keeping dynamic groups focused on one object class, I'm open to exploring your suggestions!

Answered By ScriptMasterX On

About the slow GPO processing, it could be due to factors other than WMI filters, such as the overall design of your GPOs. Ensure you don't select '*' in your WMI queries as well. As for the script, here are a few thoughts:

1. You might want to validate your JSON input. People could feed anything into your script, and it needs to ensure it receives what it expects.
2. Avoid using the -Filter parameter; it can slow things down. Consider switching to -LDAPfilter, which is more efficient.
3. Avoid running LDAP queries in loops. Instead, gather what you need and run against your domain controller all at once. This will help speed up your script.

CodingNinja42 -

Great advice! I'll switch to LDAP filters to improve performance. As for JSON validation, that's crucial if I want wider distribution.

Answered By SysAdminGuy On

For efficiency, check if you could eliminate the filters altogether by reworking your current GPO setup. A well-structured approach would lessen the dependency on WMI filters, and using JSON for configurations is a solid move. Additionally, think about adding functionality to facilitate group management—create, update, or remove groups directly from your script.

CodingNinja42 -

I’m leaning towards keeping this very controlled, but your point about easing configuration management is helpful. Thank you!

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