I installed recently a SAC (Semi Annual Channel) based Windows Server and I wanted to use some IIS cmdlets to configure it.
The IIS: drive didn’t mount
It appears that there are actually 2 modules.
One that doesn’t mount the IIS drive: the IISAdministration module
One that does: the WebAdministration module
What’s the difference between these 2 modules?
The IISAdministration module is more recent and compatible with both Windows PowerShell and PowerShell (Core).
I started to migrate to the 1809 Windows 10 branch and Remote Server Administration Tools (RSAT) are no longer provided as a separate patch (MSU/cab file) but as a Feature on Demand.
I wanted to avoid computers downloading the package from Windows Update or the default location set by Group Policy or the Windows directory of a mounted image or a running Windows installation that is shared on the network.
I downloaded the FOD ISO image and extracted just the cab files I needed.
With the following structure (yes, you need the metadata subfolder and its content + meet the package dependencies)
you can use the Add-WindowsCapability cmdlet and do:
$Source = '\\server-share\whereIextractedCabfiles'
$HT = @{
Name ='Rsat.ActiveDirectory.DS-LDS.Tools~~~~0.0.1.0'
Online = [switch]::Present
LimitAccess = [switch]::Present
}
Add-WindowsCapability @HT -Source:"$($Source)"
We started testing the Windows 10 1809 on different hardware and we noticed some issues. Explorer keeps crashing and we decided to rollback.
After the upgrade a new account logged on the computer.
DISM.exe /Online /Initiate-OSUninstall now refuses to run and says:
Error: 0xc16a0102
The OS uninstall cannot be initiated. User profiles were added.
Identify the offending profile by opening the dism log file
Delete the offending profile
$UserProfiles = Get-WmiObject -Class Win32_UserProfile # View it $u = $UserProfiles | ? LocalPath -match 'myOffendingUserName' $u # Delete user folder Get-Item "$($u.LocalPath)" | Remove-Item -Force -Recurse -Confirm:$false # Delete user profile reference $u.Delete()
Rollback to 1803 is now successful using dism.exe 😎
As part of the PowerShell Summit, there’s a scripting competition also known as the “iron scripter” contest.
This year, one of the challenges was published on this page https://ironscripter.us/a-challenge-from-the-dark-faction/
There’s a message encoded with the Caesar Cipher on this page: http://bit.ly/DarkFactionMessage which leads to this text file
You can find more details on the Caesar Cipher on this wikipedia page.
About my solution: It’s clear that % is the space character. I needed to know if a character is upper or lower case and I did a substitution to the left in the ascii table by 5 or 37. Plus in some cases, I had to adjust the character without using a substitution (or I just simply failed to find the common denominator)
My quick and dirty solution is the following:
| Function Test-CharisLowerCaseAlphabet { | |
| Param($in) | |
| ([int]([char]$in)) -in 97..(97+25) | |
| } | |
| Function Test-CharisUpperCaseAlphabet { | |
| Param($in) | |
| ([int]([char]$in)) -in 65..(65+25) | |
| } | |
| -join ( | |
| @' | |
| Rtsfi%nx%ymj%sj}y%ljsjwfynts%uqfyktwr%ktw%firnsnxywfyn{j%fzytrfynts3%%Rtsfi%xtq{jx%ywfinyntsfq%rfsfljrjsy%uwtgqjrx%g~%qj{jwflnsl%ymj%3Sjy%Uqfyktwr3%%Kwtr%tzw%uwtyty~uj%-ymtzlm%qnrnyji.1%|j%hfs%uwtojhy%xnlsnknhfsy%gjsjknyx%yt%ij{jqtujwx1%yjxyjwx1%ut|jw%zxjwx1%fsi%firnsnxywfytwx3%Rtsfi%qj{jwfljx%ymj%3SJY%Htrrts%Wzsynrj%yt%uwt{nij%f%ut|jwkzq1%htsxnxyjsy1%nsyznyn{j1%j}yjsxngqj%fsi%zxjkzq%xjy%tk%yttqx%ymfy%iwn{j%it|s%htxyx%tk%firnsnxywfynts%fsi%rfpj%ymj%qnkj%tk%sts2uwtlwfrrjwx%f%qty%jfxnjw3%% | |
| Rtsfi%htsxnxyx%tk? | |
| 63%Rtsfi%Fzytrfynts%Rtijq%-RFR.?%%Fs%fzytrfynts%rtijq%gfxji%zuts%3Sjy%hqfxxjx1%rjymtix%fsi%fyywngzyjx%yt%uwtizhj%Hriqjyx3 | |
| 73%Rtsfi%Xmjqq%-RXM.?%%F%3Sjy%gfxji%xhwnuy%j}jhzynts%js{nwtsrjsy%ktw%j}utxnsl%Hriqjyx%fx%FUNx%htrrfsi%qnsj%yttqx%fsi%nsyjwfhyn{j%uwtlwfrrfgqj%htrrfsi%qnsj%xmjqq3 | |
| 83%Rtsfi%Rfsfljrjsy%Rtijqx%-RRR.?%%Ymj%xjy%rfsflji%htij%gfxj%hqfxxjx%-tw%nsyjwkfhjx.%yt%nruqjrjsy%xujhnknh%rfsfljrjsy%xhjsfwntx%fsi%ns2ymj2gt}%firnsnxywfyn{j%yttqx%yt%j}jhzyj%ymtxj%xhjsfwntx3 | |
| 93%Rtsfi%Wjrtyj%Xhwnuynsl%-RWX.?%%F%xjy%tk%\jg%Xjw{nhj%gfxji%htrutsjsyx%ymfy%fqqt|%xhwnuyx%yt%gj%wjrtyjq~%j}jhzyji%ts%rfs~%rfhmnsjx3 | |
| :3%Rtsfi%Rfsfljrjsy%Htsxtqj%-RRH.3%%F%3Sjy%gfxji%rtijq%fsi%xjy%tk%xjw{nhjx%ktw%gznqinsl%rfsfljrjsy%LZNx%ts%ytu%tk%RXM%fsi%j}utxnsl%fqq%LZN%nsyjwfhyntsx%fx%zxjw2{nxngqj%xhwnuyx3 | |
| '@.ToCharArray() | Foreach-Object { | |
| $c = $_ | |
| Switch ($c) { | |
| '%' { ' ' ; break} | |
| '1' { ',' ; break } | |
| '2' { '-' ; break } | |
| '3' { '.' ; break } | |
| '6' { '1' ; break } | |
| '7' { '2' ; break } | |
| '8' { '3' ; break } | |
| '9' { '4' ; break } | |
| '\' { 'w' ; break } | |
| ':' { '5' ; break } | |
| '?' { ':' ; break } | |
| '-' { '(' ; break } | |
| '.' { ')' ; break } | |
| '{' { 'v' ; break } | |
| '}' { 'x' ; break } | |
| '~' { 'y' ; break } | |
| '|' { 'w' ; break } | |
| "`r" { "`r" ; break } | |
| "`n" { "`n" ; break } | |
| {Test-CharisUpperCaseAlphabet -in $c} { [char](([int][char]$c) - 5) ; break } | |
| {Test-CharisLowerCaseAlphabet -in $c} { ( [string][char](([int][char]$c) - 37)).ToLower(); break } | |
| default { | |
| 'ZZZZZ' | |
| Write-Verbose -Message "missing char -$($c)-" -Verbose | |
| Write-Verbose -Message "missing -$([char](([int][char]$c) - 37))-" -Verbose | |
| } | |
| } | |
| } | |
| ) |
It looks like this:
The original text can be found on this page: https://devops-collective-inc.gitbook.io/the-monad-manifesto-annotated/what-is-monad
>_ 