Wednesday, November 5, 2014

chrome for enterprise auto download

In a work environment normally you want to download one copy of an update to one computer, and then copy it to the rest of the computers.  This way you don't clog up your office's internet connection.  While proxys can work, they are often tricky to configure.

Google has a version of chrome that will install for all users on a computer, that you can manage (like disable group updates, and configure some other settings).  Details are at:  They also have a script that will download proper version of chrome and rename it so you can deploy it using a tool to the computers in your enterprise (which is designed to work with their deployment tool but I made it work with some slight modifications).

Chrome has an rss feed at which will notify you when there's an update.  While you could check it every day, how likely are you going to miss the day it came out, and then end up either downloading it during the day (clogging people's bandwidth), or waiting another day to schedule the download?
Below is my batch script for checking the rss feed, and if it sees there's an updated chrome, will call a script that download it automatically.

Now when you see there's a new version of chrome, it's already downloaded (if you scheduled the checking script to run every night).  I then create a package using local update publisher or wsus package publisher.

rem -----------------------------------------------------------------------------------------------
@echo off
set updatesloc=\\server\share\folder\google-chrome
rem set debug=1 if you have any problems.
set debug=0
if %debug%==1 echo grabbing the feed at %time%
wget -O %temp%\chrome-updates-feed.html
rem searching the feed for the current chrome version, and breaking out as soon as we
rem find the first one (that's not for chrome OS).

if %debug%==1 echo searching the downloaded feed for the current version at %time%
for /f "tokens=8" %%v in ('find /i "The stable channel has been updated to " %temp%\Chrome-updates-feed.html ^|find /v "Chrome OS"') do (
set curver=%%v
goto endverfind

if %debug%==1 echo searching the directory of downloaded updates to see if we already have the current version %time%
rem if the curver string length is less then three characters it's probably not valid.
rem google uses very long version numbers like: 38.0.2125.111
if "%curver:~3,1%"=="" goto end

for /f "tokens=1" %%d in ('dir /s /b %updatesloc% ^|find /c "%curver%"') do set curverdownloaded=%%d
if %debug%==1 echo search complete now to figure out what to do %time%
if %curverdownloaded%==0 goto downloadnewver
if %curverdownloaded%==0 goto gotcurver

echo got the current version, %curver% nothing to do
goto end

echo need to download the newest version %curver%, at %time%
c:\windows\syswow64\cscript.exe %updatesloc%\update-chrome.vbs
goto end

echo %time%
rem -------------------------------------------------------------------

my modified download vbscript (based heavily on the script at
make sure you've downloaded dsofile
and that you have wget in your path, wget is needed for the batch file above also.

' update-chrome.vbs -- stored in %updatesloc%\google-chrome
Option Explicit
Dim objFSO, objFile, strFileProperties, objShell, strChromePath, strChromeURL
Dim strVersion, objResult, strChromeFilename, objOleFile, arrComments
Dim strTemplateFilename, ForReading, ForWriting, strText
Dim strNewText

strChromePath = "j:\patches\google-chrome\"
'strChromePath = "c:\downloads\"
strChromeFilename = "GoogleChromeStandaloneEnterprise.msi"
strTemplateFilename = "google-chrome-template.xml"
strChromeURL = "" & _

Set objShell = CreateObject("WScript.Shell")
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objOleFile = CreateObject("DSOFile.OleDocumentProperties")

objShell.CurrentDirectory = strChromePath
' wget downloaded from
objResult = objShell.Run("wget --limit-rate=200k --no-check-certificate " & strChromeURL, 1, True)
If objFSO.FileExists(strChromePath & strChromeFilename) Then
' Grab version number. Requires Office installation, or DSOFile.dll
' from
objOleFile.Open(strChromePath & strChromeFilename)
arrComments = Split(objOleFile.SummaryProperties.Comments, " ", 2)
strVersion = arrComments(0)

' Make a copy of the file
Set objFile = objFSO.GetFile(strChromePath & strChromeFilename)
objFile.Copy strChromePath & "GoogleChromeStandaloneEnterprise-" & _
strVersion & ".msi", True
' Delete the original file
objFile.Delete True
' Update package definitions
' updateXML strTemplateFilename, _
' "..\..\packages\google-chrome.xml" ' legacy tree
' updateXML strTemplateFilename, _
' "..\..\dev\packages\google-chrome.xml" ' dev tree
' updateXML strTemplateFilename, _
' "..\..\stable\packages\google-chrome.xml" ' stable tree
MsgBox "Selected file does not exist!"
End If

'Sub updateXML(strTemplateFilename, strPackageFilename)
' Update package definition
' ForReading = 1
' ForWriting = 2
' Set objFile = objFSO.OpenTextFile(strTemplateFilename, ForReading)
' strText = objFile.ReadAll
' objFile.Close
' strNewText = Replace(strText, "__VERSION__", strVersion)
' Set objFile = objFSO.OpenTextFile(strPackageFilename, ForWriting)
' objFile.WriteLine strNewText
' objFile.Close
'End Sub

Thursday, August 7, 2014

finding your interface name for netsh

How to find the name of your interface for netsh.

In a previous post I had a ip changing script that used netsh to change the ip addresses.
The main syntax being: "netsh interface ip set address "Local Area Connection" static 1

However in windows 8, there are two issues:
1) you now have to use ipv4 instead of ip,
2) my previous method of using ipconfig to find the name of the network connection to use, doesn't work.

For the second issue I would get the error: "The filename, directory name, or volume label syntax is incorrect."

To find the correct name for your connection (where it says "Local Area Connection" above), type in:
netsh interface show interface
This will list the currently enabled interfaces, which hopefully will include the one you're trying to mess with.  If the one you want isn't listed, make sure it's associated with a wireless network (if it's the Wi-Fi interface),  or the network cable is plugged in if it's a wired interface.

Thursday, January 23, 2014

windows ip switcher

Where I work, I support multiple offices.  Most of the offices do not have DHCP, they use static ip addresses (not my decision).  So here is a script I made for changing the ip address settings on a windows laptop, this does have to be ran with full admin privileges.  You will have to change parts of this script for your usage (where ever you see an ip address, and probably want to change the labels for the networks also).

echo ip-switch ver 20081119

set baseoffice=hq

rem now we figure out what subnet we're on
for /f "tokens=2 delims=:" %%i in ('ipconfig ^|find "IP Address"') do set ipaddr=%%i
for /f "tokens=2,3 delims=." %%o in ('echo %ipaddr%') do set subnet=%%o.%%p

rem based on the sub-net we determine what our location is
if /i "%subnet%" == "10.10" set loc=hq
if /i "%subnet%" == "10.11" set loc=sub
if /i "%subnet%" == "11.11" set loc=b1
if /i "%subnet%" == "11.12"  set loc=b2
if "%loc%" == "hq" set comploc=acompanyoffice
if "%loc%" == "substation" set comploc=acompanyoffice
if "%loc%" == "branch1" set comploc=acompanyoffice
if "%loc%" == "branch2" set comploc=acompanyoffice
if "%comploc%" == "acompanyoffice" goto comploc
set comploc=remote

echo off

if "%comploc%" == "acompanyoffiice" echo this computer is currently setup for %comploc% (%loc%) use
if "%comploc%" == "remote" echo this computer is currently setup for %comploc% use
echo where is this laptop now (so it can communicate with the internet)?
echo 1) your base office (%baseoffice%)
echo 2) remote, home/other office
echo x) exit (leave everything as it is)
echo if another office enter the two-three letter abbreviation for it,
echo (hq,sub,b1,b2,etc...), and press enter, otherwise,
set /p comploc=press 1,2 or x and then enter:
rem if we entered a correct choice go to the next menu
if "%comploc%" == "1" goto methodmenu
if "%comploc%" == "2" goto methodmenu
if "%comploc%" == "x" echo no changes will be made
if /i "%comploc%" == "x" goto endprog
if /i "%comploc%" == "hq" goto otheroffice
if /i "%comploc%" == "sub" goto otheroffice
if /i "%comploc%" == "b1" goto otheroffice
if /i "%comploc%" == "b2" goto otheroffice

rem if we entered a wrong chose clear screen of distraction
rem and ask for correct input
echo "you must press 1 or 2, or just press enter"
goto complocmenu

set baseoffice=%comploc%
goto methodmenu

echo is the laptop plugged in or using wireless?
echo 1) plugged in
echo 2) wireless
echo x) endprog
set /p netmethod=press 1 or 2 and then press enter

if "%netmethod%" == "1" set conmethod="Local Area Connection"
if "%netmethod%" == "2" set conmethod="Wireless Network Connection"
if "%netmethod%" == "1" goto methodselected
if "%netmethod%" == "2" goto methodselected
if "%netmethod%" == "x" goto endprog
echo "incorrect method selected"
goto methodmenu

if "%comploc%" == "1" goto staticip
if "%comploc%" == "2" goto dhcpip

echo we will configure the computer for jcc office use
rem goto endprog
rem remove the goto endprog when we fix these settings
rem set static ip address (needs to be edited)

for /f "tokens=1 delims=-" %%I in ('echo %baseoffice%') do set loc=%%I
for /f "tokens=2 delims=-" %%C in ('hostname') do set compip=%%C
echo computer ip is %compip%

if /i "%baseoffice%" == "h1" set netaddr=10.10.10
if /i "%baseoffice%" == "sub" set netaddr=10.10.11
if /i "%baseoffice%" == "b1" set netaddr=10.11.11
if /i "%baseoffice%" == "b2" set netaddr=10.11.12

echo network address is %netaddr%

rem netsh interface ip set address "Local Area Connection" static %netaddr%.%compip% %netaddr%.1 1
rem netsh interface ip set dns "Local Area Connection" static
rem netsh interface ip set wins "Local Area Connection" static
netsh interface ip set address %conmethod% static %netaddr%.%compip% %netaddr%.1 1
netsh interface ip set dns %conmethod% static
netsh interface ip set wins %conmethod% static
rem start /wait sysdm.cpl

goto endprog

rem some netsh commands to set dhcp on the interface
netsh interface ip set address name=%conmethod% source=dhcp
netsh interface ip set dns name=%conmethod% source=dhcp
netsh interface ip set wins name=%conmethod% source=dhcp
goto endprog

for /f "tokens=2 delims=:" %%i in ('ipconfig ^|find "Default Gateway"') do set gateway=%%i
ipconfig |find "Address"
ping %gateway%
echo if you got back replys your good, if any of the requests timed out that's not good.