Powershell auto connection with Plink.exe

I got task to check counter of network connections by SCOM agent on HP-Unix servers. Nothing difficult but I got troubles with auto connection, all servers want me to accept store key in cache and I must input "y or n" :(
So ... '-batch' in help


# .\plink.exe -v -batch -pw 'Password123' 'userlogin@10.44.6.10' 'netstat | grep scom | wc -l'

$arr = @('10.44.6.6', '10.44.6.5','10.44.6.4','10.44.6.3','10.44.6.2', '10.44.6.12'');


$keys = ' -batch -pw ';
$cmd = 'netstat | grep scom | wc -l';

function run-SSH([string] $linuxHostname)
{
 $plink = "C:\plink.exe "
 $myConStr = "$plink $keys `'$pass`' `'$linuxHostname`' `'$cmd`'";
    return Invoke-Expression $myConStr
}

foreach($server in $hpux) {
$m =  run-SSH "scom@$server"
write-host "$server -> $m";
}

Configure and connect to remote Oracle DB Server using SQLPlus

We have Oracle DB Server with IP 192.168.2.207 and port 1521.
You need to know: database, schema, table, user account <testuser> password <test> . After that you can concat your connection string:

(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=  192.168.2.207)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=TestDB)))

This connection string you'll need to add  tnsnames.ORA in file that often lay in: 

C:\Oracle\product\11.2.0\client_1\network\admin\tnsnames.ORA.

You should to give unique alias for you connection. Something like:
...
TestConneсt =
(DESCRIPTION=

  (ADDRESS =

    (PROTOCOL = TCP)(HOST =  192.168.2.207)(PORT = 1521)

  )

  (CONNECT_DATA =

    (SERVICE_NAME=TestDB)

  )

)

...

Save it. Now we can test our new connection. Open Run -> cmd in command line input command:

tnsping TestConnect

More information about keys of this command you can find at http://docs.oracle.com/cd/E19957-01/805-3808/6j3kacb36/index.html

You'll need to change password, if you make your first connection to DB. I use SQLPlus (must be installed  with Oracle client). In the command line enter:


sqlplus testuser/password@192.168.2.207/TestConnect
Password: <oldpass>
NewPassword: <newpass>

OpsMgr: To disable rules in package (SCOM).

Overrides for the rules in one package.

We have package 'Microsoft.Exchange.2010' with a lot of different rules. Our task is to disable all rules in this package by overrides ( his name will be 'zOverrides_Exchange').

The first interesting script that I found in INTERNET was this one http://www.systemcentercentral.com/Default.aspx?TabId=143&IndexID=91008 , but it's grateful only for 1 rule. We must understand that rule's name can be the same in different package and extends by different classes.

# Part 3. This function look for the same rules in different classes
function searchDoubleRules() {
  $source = Get-ManagementPack | where-object { $_.Name -match 'Microsoft.Exchange.2010'}
  $rules = Get-Rule -ManagementPack $source
  $rulenames = @($rules);
  for($i=0; $i -le $rules.Length-1; $i++) {
    $rulenames.SetValue($rules[$i].DisplayName, $i)
  }

  $doublerules = @{}
  for($i=0; $i -le $rulenames.Length-1; $i++) {
    $x = 1;
    $rule = $rulenames[$i];
  for($j = $i+1; $j -le $rulenames.Length-1; $j++) {
    if($rule -eq $rulenames[$j]) {
       $x++;
    }
  }

  if(!$doublerules.ContainsKey($rule)) {
    $doublerules.Add($rule, $x);
  }
 }

 $doublerules.getenumerator() | where-object { $_.Value -gt 1 } | Out-File exchange_overlapping_rules.txt
 $double = $doublerules.getenumerator() | where-object { $_.Value -eq 1 } | select -expand key

 return $double
}

# Part 4 Make overrides on array of the rules
function setOverrideRules([string]$r, [string]$c, [int]$i ) {
  $name = "Dead_$i";
  'Rule ['+$r+'];'
  'Class ['+$c+'];'
  'Override ['+$name+'];'
  $SourceMP = Get-ManagementPack | where-object { $_.Name -match 'Microsoft.Exchange.2010'}
  $mp = Get-ManagementPack | Where-Object {$_.FriendlyName -match 'zOverrides_Exchange' }
  $rule = Get-Rule -ManagementPack $sourceMP | Where-Object { $_.DisplayName -eq $r }
  $Target = Get-MonitoringClass | Where-Object { $_.Name -eq $c }
  $override = New-Object Microsoft.EnterpriseManagement.Configuration.ManagementPackRulePropertyOverride($mp, $name);
  $Rule = [Microsoft.EnterpriseManagement.Configuration.ManagementPackElementReference``1[Microsoft.EnterpriseManagement.Configuration.ManagementPackRule]]::op_Implicit($Rule);
  $override.Rule = $Rule;
  $override.Description = 'Test';
  $override.Property = 'Enabled';
  $override.Value = 'false';
  $override.Context = $Target;
  $override.DisplayName = $r;
  $mp.Verify();
  $mp.AcceptChanges();
}

# Part 1
# Create connection to SCOM console and make 'st' to the namespace "OperationsManagerMonitoring::"
Add-PSSnapin "Microsoft.EnterpriseManagement.OperationsManager.Client" -ErrorVariable errSnapin ;
Set-Location "OperationsManagerMonitoring::" -ErrorVariable errSnapin ;
new-managementGroupConnection -ConnectionString:<Your RMS> -ErrorVariable errSnapin ;
Set-Location <Your RMS> -ErrorVariable errSnapin;

# Part 2. Looking for  'Microsoft.Exchange.2010'  package
$SourceMP = Get-ManagementPack | where-object { $_.Name -match 'Microsoft.Exchange.2010'}
$rules = Get-Rule -ManagementPack $sourceMP # get all rules in this package
$arr = searchDoubleRules; # Goto part 2
$arr.Count
# Part 3. So it interesting part. We save all TargetId of MSExchange rules in $ruleId  and that we use it for search in scope of SCOM Monitor Classes by same Id.
for($i=0; $i -le $rules.Length-1; $i++) {
   [string]$ruleId = $rules[$i].Target.Id
   $t = Get-MonitoringClass | Where-Object {$_.Id -eq $ruleId }
   [string]$rDN = $rules[$i].DisplayName;
   [string]$tN = $t.Name;

   foreach($a in $arr) {
      if($a -eq $rDN) {
      setOverrideRules -r $rDN -c $tN -i $i;  # Part 4. 
      'Overrided!'
      break;
   }
 }
}

# Part 5. Remove connection to SCOM console.
remove-pssnapin "Microsoft.EnterpriseManagement.OperationsManager.Client" -ErrorVariable errSnapin;

Ping Server List Availability (ICMP)

Task:
Please make sure that all servers are ping from your PC. Here is 'serverlist.txt'.

So:
# get file content
$file = Get-Content 'C:\serverlist.txt'
# convert file content into string type
[string]$lines = $file
# split our string
$arrlines = $lines.Split(' ')

foreach ($Server in $arrlines) {
  if (test-Connection -ComputerName $Server -Count 2 -Quiet ) {         
    write-Host "$Server is alive and Pinging " -ForegroundColor Green
  } else {
Write-Warning "$Server seems dead not pinging"
  }  
}

Something like this:

end