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Jeremy JeremyTBradshaw

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JeremyTBradshaw / ExchangeServerTLS1.2.reg
Last active February 18, 2023 18:21
Quickly enable TLS1.2 and disable PCT1.0, SSL2.0, SSL3.0, TLS1.0, and TLS1.1
Windows Registry Editor Version 5.00
;#======#---------------#
;#region# .NETFramework #
;#======#---------------#
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v2.0.50727]
"SystemDefaultTlsVersions"=dword:00000001
"SchUseStrongCrypto"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
@JeremyTBradshaw
JeremyTBradshaw / IPRegex.ps1
Created May 17, 2023 23:41
Regex validation for IPv4 addresses, optionally with CIDR notation
$IPRegex = @(
'^(([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])\.){3}', #<-: 0. to 255. (x3)
'([0-9]|[1-9][0-9]|1[0-9][0-9]|2[0-4][0-9]|25[0-5])', #<---------: 0 to 255
'($|/([8-9]|[1-2][0-9]|3[0-2]))$' #<-----------------------------: (optional) /8 to /32
) -join ''
$Variations = @(
# Will match:
'0.0.0.0',
'10.0.0.0/8',
@JeremyTBradshaw
JeremyTBradshaw / Get-BackPressureStatus.ps1
Created May 29, 2023 16:22
Get Exchange Back Pressure Status and Thresholds Summary.
# Longer version: https://github.com/JeremyTBradshaw/PowerShell/blob/main/Get-BackPressureStatus.ps1
# Reference: https://learn.microsoft.com/en-us/exchange/mail-flow/back-pressure#view-back-pressure-resource-thresholds-and-utilization-levels
$TransportServers = Get-TransportService
$backPressureDiagInfo = foreach ($srv in $TransportServers) {
[xml]$perServerBPDiagInfo = Get-ExchangeDiagnosticInfo -Server $srv.Name -Process EdgeTransport -Component ResourceThrottling
foreach ($rsrc in $perServerBPDiagInfo.Diagnostics.Components.ResourceThrottling.ResourceTracker.ResourceMeter) {
$rsrc | Select-Object @{Name = 'Server'; Expression = { $srv.Name } },
@JeremyTBradshaw
JeremyTBradshaw / Set-ExchangeAutomaticServices.ps1
Last active October 4, 2023 18:32
Fix Exchange disabled services after failed SU/CU installs
@"
HostControllerService
MSComplianceAudit
MSExchangeADTopology
MSExchangeAntispamUpdate
MSExchangeCompliance
MSExchangeDagMgmt
MSExchangeDelivery
MSExchangeDiagnostics
MSExchangeEdgeSync
@JeremyTBradshaw
JeremyTBradshaw / Some-OutlookCalendarOverrides.ps1
Created March 1, 2024 20:31
Some Outlook Calendar registry overrides
# https://support.microsoft.com/en-us/office/user-experience-changes-for-sharing-a-calendar-in-outlook-5978620a-fe6c-422a-93b2-8f80e488fdec
reg add HKCU\SOFTWARE\Microsoft\Office\16.0\Outlook\Options\Calendar /v ShowLegacySharingUX /t REG_DWORD /d 1
# https://support.microsoft.com/en-us/office/how-to-revert-the-outlook-desktop-webview-based-room-finder-to-the-legacy-room-finder-e872b6f2-0d36-41ff-861d-adaab2da9c28?ui=en-US&rs=en-US&ad=US
reg add HKCU\SOFTWARE\Microsoft\Office\16.0\Outlook\Options\Calendar /v ShowLegacyRoomFinder /t REG_DWORD /d 0