[Xymon] DHCP monitoring
Shea, Graeme A
Shea.Graeme.A at edumail.vic.gov.au
Mon Feb 24 04:51:25 CET 2014
Hi Jorge,
Below is the script I use on 2012 and 2012 R2 without any problems (if outlook doesn't mess it up). If you strike any issues can you let me know.
Regards
Graeme
'-----------------------------------------------------------------------------------
option Explicit
' BigBrother External Script for testing to see if Dhcp is up and responding on Window 2003 and above
' Gives Scope details running on the server specified With Active/Excluded and Available leases
' Installation
' 1) Modify the vairables below to match your system.
' 2) Add the script to your externals list in bbntcfg on the DHCP Server.
' so that it runs at least every 6500 seconds
' 3) Make sure you set the Saved Logs Location to %BBHOME%\ext
' Author Graeme Shea, Shea Technology Pty Ltd. graeme AT shea.com.au
' Adapted from and very heavly based on work by Brett Wilson - Brett_Wilsons at hotmail.com and André Hugener
Dim Server, Alias, Yellow, Red, BBext, Colour, Col, WshShell, FileSys, OutDhcp, Version, BBextFolder
Dim Check, Dhcp, NoDhcp, Status, Scope, Line, u, Tokens, Tmp, InUse, Free, BB, BBin, pend, j, b64Bit
'---Vairables---
Server = "localhost" ' Dhcp Server to test (not neccessarily the server running from)
Alias = "DC1" 'Name machine is known at BB server "," instead of "."!!!
Yellow = 20 ' Min Available Leases when BB turns Yellow
Red = 5 ' Min Available Leases when BB turns Red
'---End Vairables---
'---Nothing to Change under this line---
'On Error Resume Next'
'-------------------------------------------------------------------------------------
' Version 0.1 Oringal version using dhcpcmd.exe for NT4 Resource kit
' Version 0.2 Uses builting Windows 2003 netsh command.
' Version 0.2.1 Fixed dialog error on 64bit systems.
' Version 0.3.0 BBWin compatatible 01/05/08 Graeme Shea.
Version = "0.3.0"
Set WshShell = WScript.CreateObject("WScript.Shell")
Set FileSys = CreateObject("Scripting.FileSystemObject")
On Error Resume Next
BBext = GetBigBrotherPath()
If BBext = "" Then
MsgBox " Big Brother External Path not set. You need to set the Saved Logs Location " _
& VbCrLf & " using the bbntcfg utility. ",," Fatal Error. "
WScript.Quit
End If
On Error GoTo 0
'Need short path names or else Netsh creates a c:\program file.
Set BBextFolder = FileSys.GetFolder(BBext)
BBext = BBextFolder.ShortPath
Status = "status " & Alias & ".dhcp "
Dhcp = "cmd /c " & "Netsh.exe dhcp server \\"& Server & " show mibinfo > " & bbext & "\dhcp.txt"
WshShell.run Dhcp, 0, True
' Check to see that Dhcp is running
Set Check = FileSys.OpenTextFile (bbext & "\dhcp.txt")
NoDhcp = Check.ReadLine
If InStr(1,NoDhcp, "Unable") OR InStr(1,NoDhcp, "Not Found")Then
Dhcp = "No"
Status = "red " & Status & " red" & " " & Now() & Vbcrlf &_
"Warning!! Dhcp Is not Running On Server - " & Server
End If
' If Dhcp is running retrieve Active Scopes and lease numbers
Do While Not check.AtEndOfStream
Line = Check.ReadLine
u = Instr(1,Line,"Subnet")
if u <> 0 Then
tokens = Split( Line,"=")
tmp = Check.ReadLine
Inuse = Split( tmp,"=")
tmp = Check.ReadLine
Free = Split( tmp,"=")
tmp = Check.ReadLine
pend = Split( tmp,"=")
j=(Cint(Free(1))+Cint(Inuse(1))+Cint(pend(1)))
If j < 1 Then
Colour = "blue"
Else
Colour = "green"
if Col < 1 Then
Col = 1
End If
If Cint(Free(1)) <= Yellow Then
Colour = "yellow"
If Col < 2 Then
Col = 2
End If
End If
If Cint(Free(1)) <= Red Then
Colour = "red"
Col = 3
End If
End If
Scope = Scope & " Scope " & Tokens(1) & " " & Fix(Inuse(1)) & " Active/Excluded" &_
VbCrlf & "&" & Colour & " Scope " & Tokens(1) & " " & Fix(Free(1)) & " Available" &_
VbCrlf & " Scope " & Tokens(1) & " " & Fix(pend(1)) & " Pending" & VbCrlf &_
"Status: " & Colour & VbCrlf & VbCrlf
End If
Loop
Colour = "red"
If Col = 0 Then
Colour = "blue"
End If
If Col = 1 Then
Colour = "green"
End If
If Col = 2 Then
Colour = "yellow"
End If
If Dhcp <> "No" Then
Status = colour & "+2h " & Status & Colour & " " & Now() & Vbcrlf & _
"Dhcp is running on Server " & Server & " with the following configuration" & VbCrLf
End If
Set OutDhcp = filesys.CreateTextFile(BBext & "\dhcp", True)
OutDhcp.WriteLine Status
OutDhcp.WriteLine Scope
OutDhcp.WriteLine ""
OutDhcp.WriteLine "BBDhcp Version " & Version
Outdhcp.close
Check.close
' Get path to external log files (for BB 1.08d)
Function GetBigBrotherPath()
Dim ExtPath
On Error Resume Next
ExtPath = WshShell.RegRead("HKLM\SOFTWARE\Quest Software\BigBrother\bbnt\ExternalPath\")
If IsEmpty(ExtPath) Then
ExtPath = WshShell.RegRead("HKLM\SOFTWARE\BBWin\tmppath")
End If
If Not IsEmpty (ExtPath) Then 'If not empty then we have 32bit machine
b64Bit = False
End If
If IsEmpty(ExtPath) Then
ExtPath = WshShell.RegRead("HKLM\SOFTWARE\Wow6432node\Quest Software\BigBrother\bbnt\ExternalPath\")
End If
If IsEmpty(ExtPath) Then
ExtPath = WshShell.RegRead("HKLM\SOFTWARE\Wow6432node\BBWin\tmppath")
End If
If Not IsEmpty(ExtPath) And isEmpty(b64Bit) Then
b64Bit = True
err.clear
End If
If IsEmpty(ExtPath) Then
'Put exit stuff here
End If
on Error GoTo 0
GetBigBrotherPath = ExtPath
End Function
From: Xymon [mailto:xymon-bounces at xymon.com] On Behalf Of Jorge Lopes
Sent: Monday, 24 February 2014 8:19 AM
To: Xymon MailingList
Subject: [Xymon] DHCP monitoring
Good Morning,
Has anyone updated/modified the DHCP plugin for xymon,
Currently we are using the following ext script to monitor our DHCP servers on 2008 however we seem to be running into issues on 2012
Thanks in advance.
Jorge
BBDHCP.VBS
... Old script removed for brevity - GS
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