Monthly Archives: July 2011

Making HTTP requests via telnet

$ telnet www.spectrumcs.net 80 Trying 208.97.136.171… Connected to www.spectrumcs.net. Escape character is ‘^]’. GET / HTTP/1.1 Host: www.spectrumcs.net HTTP/1.1 200 OK Date: Thu, 12 Jul 2007 16:10:02 GMT Server: Apache/1.3.37 (Unix) mod_throttle/3.1.2 DAV/1.0.3 mod_fastcgi/2.4.2 mod_gzip/1.3.26.1a PHP/4.4.7 mod_ssl/2.8.22 OpenSSL/0.9.7e MS-Author-Via: DAV Last-Modified: Wed, 11 Jul 2007 14:10:28 GMT ETag: “19cf7aa-68d-4694e4d4” Accept-Ranges: bytes Content-Length: 1677 Content-Type: text/html… Read More »

Using OpenSSL to create a certificate for Exchange 2010

14-July-2011 – This post needs polishing! 14-Dec-2011 – Improved by repeating exercise at PCA. 01-Aug-2012 – I have created a script to create directory structure and openssl.cfg available at http://files.spectrumcs.net/public/Exchange-OpenSSL/ 28-Aug-2012 – Look at http://www.sslshopper.com/csr-decoder.html and consider creating a web portal which will create the CA and Certs in one go. Before diving in, remember to do the… Read More »

Delivery has failed to these recipients or groups: distribution-group@domain.com Your message can’t be delivered because delivery to this address is restricted.

If you receive a bounce message with the following message when sending an email to a distribution list. Delivery has failed to these recipients or groups: distribution-group@domain.com Your message can’t be delivered because delivery to this address is restricted. Within Exchange Management Console navigate to Microsoft Exchange -> Microsoft Exchange on-Premises -> Recipient Configuration ->… Read More »

Grant Full Access to All Mailboxes in Exchange 2010

Here’s a little time-saving tip for working with mailboxes in Exchange 2010.  Normally if you need full access to another user’s mailbox in Exchange 2007/2010 you would highlight their mailbox in the Exchange Management Console and the choose “Manage Full Access…” from the action pane.  You would have to do this individually for each mailbox… Read More »

ADSL connection analysis. SNR, Loop Attenuation etc

SNR is Signal to Noise Ratio (aka Noise Margin or Signal to Noise Margin) Relative strength of the DSL signal to Noise ratio. 6dB is the lowest dB manufactures specify for modem to be able to synch. In some instances interleaving can help raise the noise margin to an acceptable level. The higher the number… Read More »

Exchange 2010 Installation in 3 STEPS!

Open a command prompt and run “ServerManagerCmd -i RSAT-ADDS” on any DC (any Exchange server if not a DC) and restart them. Goto Services.msc and make sure “Net.Tcp Port Sharing Service” service is set to automatically run. Open a command prompt, change directory to the scripts directory within your Exchange 2010 media and then run… Read More »

HTC Desire S battery life

To also help with Battery Life you can do these steps exactly: 1) Turn your device ON and Charge the device for 8 hours or more 2) Unplug the device and Turn the phone OFF and charge for 1 hour 3) Unplug the device Turn ON wait 2 minutes and Turn OFF and charge for… Read More »