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Added Error Handling and Pre-Checks

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This commit is contained in:
Markus Kraus
2020-05-26 22:37:26 +02:00
parent bd70bfb5dc
commit 9a7dc6dd59
1 changed files with 71 additions and 13 deletions
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84
Scripts/Set-VMHostSecureNTP.ps1
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@@ -15,17 +15,21 @@ function Set-VMHostSecureNTP {
begin {
function SetSecure ($MyHost) {
## Get NTP Service
## Get NTP Service
"Get NTP Service from VMHost ..."
$NTPService = $MyHost | Get-VMHostService | Where-Object {$_.key -eq "ntpd"}
## Stop NTP Service if running
## Stop NTP Service if running
"Stop NTP Service if running ..."
if($NTPService.Running -eq $True){
Stop-VMHostService -HostService $NTPService -Confirm:$false | Out-Null
}
## Enable NTP Service
"Enable NTP Service if disabled..."
if($NTPService.Policy -ne "on"){
Set-VMHostService -HostService $NTPService -Policy "on" -confirm:$False | Out-Null
}
## Remove all existiing NTP Servers
"Remove all existiing NTP Servers ..."
try {
foreach ($OldNtpServer in ($MyHost | Get-VMHostNtpServer)) {
$MyHost | Remove-VMHostNtpServer -NtpServer $OldNtpServer -Confirm:$false
@@ -35,36 +39,90 @@ function Set-VMHostSecureNTP {
Write-Warning "Error during removing existing NTP Servers on Host '$($MyHost.Name)'."
}
## Set New NTP Servers
"Set New NTP Servers ..."
foreach ($myNTP in $NTP) {
$MyHost | Add-VMHostNtpServer -ntpserver $myNTP -confirm:$False | Out-Null
}
## Set Current time on Host
"Set Current time on VMHost ..."
$HostTimeSystem = Get-View $MyHost.ExtensionData.ConfigManager.DateTimeSystem
$HostTimeSystem.UpdateDateTime([DateTime]::UtcNow)
## Start NTP Service
"Start NTP Service ..."
Start-VMHostService -HostService $NTPService -confirm:$False | Out-Null
## Get NTP CLient Forewall Rule
## Get ESXCLI -V2
$esxcli = Get-ESXCLI -VMHost $MyHost -v2
$esxcliargs = $esxcli.network.firewall.ruleset.rule.list.CreateArgs()
$esxcliargs.rulesetid = "ntpClient"
## Get NTP Client Firewall
"Get NTP Client Firewall ..."
try {
$esxcli.network.firewall.ruleset.rule.list.Invoke($esxcliargs)
$FirewallGet = $esxcli.network.firewall.get.Invoke()
}
catch [System.Exception] {
Write-Warning "Error during Rule List. See latest errors..."
}
## Set NTP Client Firewall Rule
$esxcliargs = $esxcli.network.firewall.ruleset.set.CreateArgs()
$esxcliargs.enabled = "true"
$esxcliargs.allowedall = "false"
"`tLoded: $($FirewallGet.Loaded)"
"`tEnabled: $($FirewallGet.Enabled)"
"`tDefaultAction: $($FirewallGet.DefaultAction)"
## Get NTP Client Firewall Rule
"Get NTP Client Firewall RuleSet ..."
$esxcliargs = $esxcli.network.firewall.ruleset.list.CreateArgs()
$esxcliargs.rulesetid = "ntpClient"
try {
$esxcli.network.firewall.ruleset.set.Invoke($esxcliargs)
$FirewallRuleList = $esxcli.network.firewall.ruleset.list.Invoke($esxcliargs)
}
catch [System.Exception] {
Write-Warning "Error during Rule Set. See latest errors..."
Write-Warning "Error during Rule List. See latest errors..."
}
"`tEnabled: $($FirewallRuleList.Enabled)"
"Get NTP Client Firewall Rule AllowedIP ..."
$esxcliargs = $esxcli.network.firewall.ruleset.allowedip.list.CreateArgs()
$esxcliargs.rulesetid = "ntpClient"
try {
$FirewallRuleAllowedIPList = $esxcli.network.firewall.ruleset.allowedip.list.Invoke($esxcliargs)
}
catch [System.Exception] {
Write-Warning "Error during Rule List. See latest errors..."
}
"`tAllowed IP Addresses: $($FirewallRuleAllowedIPList.AllowedIPAddresses)"
## Remove Existing IP from firewall rule
## BUG: If AllowedIP was enabled and is disabled now, old IPs will not be removed
"Remove Existing IP from firewall rule ..."
if ($FirewallRuleAllowedIPList.AllowedIPAddresses -ne "All") {
foreach ($IP in $FirewallRuleAllowedIPList.AllowedIPAddresses) {
$esxcliargs = $esxcli.network.firewall.ruleset.allowedip.remove.CreateArgs()
$esxcliargs.rulesetid = "ntpClient"
$esxcliargs.ipaddress = $IP
try {
$esxcli.network.firewall.ruleset.allowedip.remove.Invoke($esxcliargs)
}
catch [System.Exception] {
Write-Warning "Error during AllowedIP remove. See latest errors..."
}
}
}
## Set NTP Client Firewall Rule
"Set NTP Client Firewall Rule ..."
if ($FirewallRuleList.Enabled -ne $True -or $FirewallRuleAllowedIPList.AllowedIPAddresses -eq "All") {
$esxcliargs = $esxcli.network.firewall.ruleset.set.CreateArgs()
if ($FirewallRuleList.Enabled -ne $True) {
$esxcliargs.enabled = "true"
}
if ($FirewallRuleAllowedIPList.AllowedIPAddresses -eq "All") {
$esxcliargs.allowedall = "false"
}
$esxcliargs.rulesetid = "ntpClient"
try {
$esxcli.network.firewall.ruleset.set.Invoke($esxcliargs)
}
catch [System.Exception] {
Write-Warning "Error during Rule Set. See latest errors..."
}
}
## Set NTP Client Firewall Rule AllowedIP
## BUG: If AllowedIP was enabled and is disabled now, a duplicate Ip Cannot be added
"Set NTP Client Firewall Rule AllowedIP ..."
foreach ($myNTP in $NTP) {
$esxcliargs = $esxcli.network.firewall.ruleset.allowedip.add.CreateArgs()
$esxcliargs.ipaddress = $myNTP
@@ -73,7 +131,7 @@ function Set-VMHostSecureNTP {
$esxcli.network.firewall.ruleset.allowedip.add.Invoke($esxcliargs)
}
catch [System.Exception] {
Write-Warning "Error during Rule Update. See latest errors..."
Write-Warning "Error during Rule AllowedIP Update. See latest errors..."
}
}
}