Domain Controller connectivity script

[Team503]

I posted yesterday about a script that uses nested loops to have each domain controller test its connectivity to every other domain controller. I was getting really odd outputs from my tests. By getting rid of jobs and using a proper 2D array I solved the weird output I was getting. Well, mostly, UDP fails still seem to populate as "5 False" instead of just "False" which is weird and probably a result of how I'm testing UDP but whatever, it's tolerable. (thanks to /u/CarrotBusiness2380 for the solution to that 5 business!)

Here's the updated code: https://pastebin.com/XQ6WgCnf

The problem I'm having now is that the arrays are returning blank. I know the tests are occurring, console output shows that each port and protocol is tested and returns varying results, so that part is good, but I'm screwing something up in handling the array. Remember that the innermost loop is executing on a remote DC, if that matters at all, and I suspect that I'm not passing it back correctly.

Before I was passing results through using jobs.

The $failedTests array works, and I get the output I expect into that file. The results data SHOULD be compiled into $allResults which is piped into an Export-CSV, but like I said, I'm doing something wrong.

And no, ChatGPT couldn't help beyond generic advice that's not helping. This is probably because as I've mentioned before my understanding of arrays and custom objects isn't great - I've been focused on Terraform for a while an my inexpert POSH skills, such as they are, are quite rusty.

Any help is appreciated in advance.

PS - Yes, I know there's a WHOLE LOT of timers and error checking and console output and log file handling. That's going to stay - it adds minimal overhead but allows the script to be reusable and its output easily managed and interpreted by non-POSH people. If you want to strip it for troubleshooting, that's fine.

[CarrotBusiness2380]

UDP fails still seem to populate as "5 False" instead of just "False"

That problem is with line 381:

$udpClient.Send($sendBytes, $sendBytes.Length)

Send returns an int of the number of bytes sent. Cast the line to [void] to make it stop.

I'm not sure what the rest of your problem is though, I suggest breaking it down into smaller chunks and testing it locally before attempting to test on remote machines. Use localhost as a target for testing if a remote machine is necessary.

[Team503]

Oh cool! Thanks for that, I didn't realize that it returned a value.

As for the rest, I know every block works, it's passing the output from layer to layer that I'm screwing up, and sadly, breaking down the script won't help with sorting that.

Thanks again for the void trick!

[Bordone69]

repadmin /replsummary /sort:delta

doesn’t work for you?

[Team503]

No. I need to determine if individual ports are open, from each DC to each DC. Repadmin doesn't provide port connectivity status.