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Archive for February 2009

Manually Configure a 3rd Party Router for O2’s ADSL2+ Service

If you want to use a better / different router than O2 supplies you may be disapointed to find that the service isn’t a standard ADSL (PPPoA) connection.

Due to some troubleshooting work recently we have been given the following details for using an alternative router - our old onsite router wasn’t able to connect up - but I thought I would post these anyway incase it helps anyone else :)

Connection Type Multiplex LLC
VPI / VCI 0/110
IP Address : Dynamic from Provider

DNS 87.194.0.51 / 52

How to find and remove inactive computer accounts from active-directory

First the Adminpak for Windows Server must be installed - the latest can be found here:
http://www.microsoft.com/downloads/details.aspx?familyid=e487f885-f0c7-436a-a392-25793a25bad7&displaylang=en

Now check for computer that haven’t logged in in a period of time - the example below uses 8 weeks - from the command line enter:
dsquery computer -inactive 8 -limit 0

After reviewing this list to make sure these computers no longer exist on your network you can use the following command to find and delete them:
dsquery computer -inactive 8 -limit 0 | dsrm -noprompt

Citrix Access Essentials - AV recommended settings

If you look after a CAE system there are some important setup changes to AV setup -

http://support.citrix.com/article/CTX114522

Great web service to anaylise message headers

If you are suffering from delayed messages or you need to better understand the message path for inbound mails the place to look is the SMTP message header.

In outlook you can get this by right clicking on the message and choosing properties. In the window displayed the header information is in a box towards the bottom.

The text in here can be very difficult to follow - especialyl if it passes through several time zones.

The following website allows you to paste the header data directly in and then it will show you each server that touched the message and the time between each stage.

http://www.mxtoolbox.com/EmailHeaders.aspx

Updated Links to Process Explorer tutorials

I posted a link to Mark Russinovich’s Malware Cleaning tutorial using Process Explorer over a year ago - it is still a video I find useful to gain an understanding on the excellent Process Explorer.

The video has been moved since I posted my link - and I have also found Mark’s tutorial on Process Explorer so here are the latest links

Troubleshooting with Process Explorer -
http://www.microsoft.com/emea/spotlight/sessionh.aspx?videoid=346

Malware Cleaning with Process Explorer -
http://www.microsoft.com/emea/spotlight/sessionh.aspx?videoid=359

Enabling directory listing on a linux web host

If you want a quick way to host some files online without having to write html or get a CMS system running you could just dump the files in a folder and enable directoy listing for that folder as follows -

1. Create a file named .htaccess. This can be done in any text editor.
Make sure you save the file as .htaccess (a period at the beginning of file name)

2. In the first line of this file type in

Options +Indexes

3. Save the file

4. Now, upload the file to your webspace, specifically the directory in which you
want visitors to see the file listing.

Source: http://faq.1and1.com/scripting_languages_supported/configuring_apache_server_using_htaccess/3.html

Network boot recovery tools and OS installs using Windows Deployment Services

The following guide details how to install Windows Deployment Services.

This shows the upgrade from RIS on server 2003.

http://thelazyadmin.com/blogs/thelazyadmin/archive/2007/05/07/windows-deployment-services.aspx

LogMeIn install on Windows 7

Thanks to David Pollitt for this one over at - http://dpollitt.net/2009/01/19/run-logmein-with-windows-7/

How to use LogMeIn Free with Windows 7 Beta:

1. Download the LogMeIn software to your desktop from this site: https://secure.logmein.com/logmein.zip

2. Unzip the folder to a new folder on your desktop named “logmein”.

3. Go to the start menu and search for “cmd. When you find the Command Prompt entry, right click it and select “Run as Administrator”, and Click through the warning prompt.

4.In command prompt type “cd\users\\desktop\logmein\x86” without quotes and press enter. (If you are running 64-bit Windows change the ‘x86′ to ‘x64′)

5. In command prompt type “logmein install” without quotes and press enter.

6. The installer will run and you should then see the tray icon when it’s finished. Right click on the icon and select “Open LogMeIn…”

7. Firefox will open and you’ll get an error box. Just click “OK“.

8. Copy and paste this address into the address bar: https://127.0.0.1:2002/

9. Click through if you get a popup warning you about a certificate. On the page itself you will see something to allow an exception. Click on that and then click ‘Get Certificate‘ in the next box. Again you will probably get another warning but just click add anyway.

10. You should see the familiar LogMeIn screen. Just put in your computer user credentials and then you will be asked for your LogMeIn credentials.

It is a pretty straightforward process, but does take a bit of workaround to get it setup. Hopefully over the next few months LogMeIn will add support to Windows 7 for its installer package.

Thank you to user doober for the directions via the LMI forums.

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