It takes one or two parameters.
The first parameter should be an IP address or a host name that can be resolved to an IP address.
If the IP address has a PTR record then it is compared with the original host name. If they match then the test is a success.
An optional second parameter can be used. If so then the PTR record must match this parameter for the test to be a success.
The script has been tested on a WINDOWS-2003 server running HOSTMONITOR v5.6beta.
The Hint for the script is: Params: <IP or Host> optional <Expected Result>
The start command for this script is: cmd /c %Script% %Params%
The body of the script is:-
@echo off
REM query host name and return a PTR record status
if "%1"=="" goto NOPARAMS
setlocal
set Hostname=%1
set hostfail=***
set FILE=%temp%\~ptrcheck.%1.tmp
set FILE2=%temp%\~ptrcheck2.%1.tmp
if "%2"=="" set Expected=%hostname% else set Expected=%2
nslookup -q=a %Hostname% > %FILE2% 2>&1
FOR /F "tokens=1" %%A IN ('type %FILE2%') DO CALL :CHECKHOST %%A
FOR /F "tokens=2" %%X IN ('type %FILE2% ^| find /n "Address" ^| find "[6]Address"') DO CALL :MAINLOOP %%X
FOR /F "tokens=2" %%X IN ('type %FILE2% ^| find /n "Address" ^| find "[5]Address"') DO CALL :MAINLOOP %%X
goto ALLDONE
:MAINLOOP
nslookup -q=ptr %1 > %FILE% 2>&1
FOR /F "tokens=4" %%B IN ('type %FILE% ^| FIND /I "name ="') DO CALL :OKRECORD %%B %EXPECTED%
echo ScriptRes:Bad:%1 has no PTR
goto ALLDONE
:CHECKHOST
IF NOT %1==%hostfail% GOTO :EOF
echo ScriptRes:Unknown:host not found
goto ALLDONE
:OKRECORD
echo we are here
if "%2"=="" goto GOTEXPECTED
if "%1"=="%2" goto GOTEXPECTED
echo ScriptRes:Bad:%1
goto ALLDONE
:GOTEXPECTED
echo ScriptRes:Ok:%1
goto ALLDONE
:NOPARAMS
echo ScriptRes:Unknown:not enough parameters
goto ALLDONE
:ALLDONE
del %FILE%
del %FILE2%
exit