Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

30 posts


Topic # 119022 17-May-2013 12:50
Send private message

I have a batch file I have done that adds blocked websites to the host file on a clients machines, all works as it should, just wondering if there is a way to force the batch file to not re add an entry if it already exists,

I want it to work so every time I add a new site to the batch file it will either skip or over write the existing entry so it doesn't keep adding the same thing every time its run

Create new topic


10607 posts

Uber Geek
+1 received by user: 1712

  Reply # 821445 18-May-2013 08:03
Send private message

There is. Maybe post your existing batch to get an idea of how you are doing things and how it can be improved.

30 posts


  Reply # 821461 18-May-2013 09:11
Send private message

this is the text I am using its really basic but it does the trick,

@echo off

set hostspath=%windir%\System32\drivers\etc\hosts

echo >> %hostspath%
echo >> %hostspath%



1332 posts

Uber Geek
+1 received by user: 152
Inactive user

  Reply # 821491 18-May-2013 10:36
Send private message

I haven't worked with batch files much before but StackOverflow is a good place for answer to questions like these. From a simple search you might try conditionally searching the hosts file for the URL:

findstr /c:"" "C:\Windows\System32\drivers\etc\hosts" >nul 2>&1
if errorlevel 1 echo >> C:\Windows\System32\drivers\etc\hosts

Code untested, so proceed with caution. This solution becomes a pain when you have a large list of sites to check but then I think Python might be a better solution in that situation.

Dangerous Chocolate
166 posts

Master Geek
+1 received by user: 41


  Reply # 821513 18-May-2013 11:03
Send private message

Would it be easier to just update a master HOSTS file that you control, and overwrite the client version with your master every time there is an update?

Or is there possibly other things in the client's file which you are not aware of or have no control over?


8029 posts

Uber Geek
+1 received by user: 387


  Reply # 822187 20-May-2013 02:53
Send private message

Using the hosts file to break dns for domain names generally isn't a good idea.

If you must block ads why not just use an ad block plugin in the browser?

1088 posts

Uber Geek
+1 received by user: 66

  Reply # 822235 20-May-2013 09:25
Send private message

Is this on a workgroup or a domain?

Do you have a central DNS server that you could use to apply the changes to instead?

What is the reason for blocking these sites? Is it a company environment, or a internet cafe type environment.

If you are using a domain, i suggest using a web proxy like SQUID that will allow you to block websites, and you can enforce the proxy using group policy.

30 posts


  Reply # 822382 20-May-2013 12:56
Send private message

they have an old SBS server that's being decommissioned and have gone cloud based for everything, they just want to stop employee's wasting time being non productive, so thought doing it this way would be a quicker easy fix

Create new topic

Donate via Givealittle

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

Amazon introduces new Kindle with adjustable front light
Posted 21-Mar-2019 20:14

A call from the companies providing internet access for the great majority of New Zealanders, to the companies with the greatest influence over social media content
Posted 19-Mar-2019 15:21

Two e-scooter companies selected for Wellington trial
Posted 15-Mar-2019 17:33

GeForce GTX 1660 available now
Posted 15-Mar-2019 08:47

Artificial Intelligence to double the rate of innovation in New Zealand by 2021
Posted 13-Mar-2019 14:47

LG demonstrates smart home concepts at LG InnoFest
Posted 13-Mar-2019 14:45

New Zealanders buying more expensive smartphones
Posted 11-Mar-2019 09:52

2degrees Offers Amazon Prime Video to Broadband Customers
Posted 8-Mar-2019 14:10

D-Link ANZ launches D-Fend AC2600 Wi-Fi Router Protected by McAfee
Posted 7-Mar-2019 11:09

Slingshot commissions celebrities to design new modems
Posted 5-Mar-2019 08:58

Symantec Annual Threat Report reveals more ambitious, destructive and stealthy attacks
Posted 28-Feb-2019 10:14

FUJIFILM launches high performing X-T30
Posted 28-Feb-2019 09:40

Netflix is killing content piracy says research
Posted 28-Feb-2019 09:33

Trend Micro finds shifting threats require kiwis to rethink security priorities
Posted 28-Feb-2019 09:27

Mainfreight uses Spark IoT Asset Tracking service
Posted 28-Feb-2019 09:25

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.