Archive for June 2010 | Monthly archive page

Startup Keys and Boot Options for MAC

Jun 30, 2010

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In: Desktops and Workstations

Obscure Startup Key / General Use Key Combinations Apple systems have always used different key combinations to perform different tasks, just like all computer makers. However, finding those key combinations has always been an arduous task – they don’t come right out and tell you in the manual how to do some of these. This

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Configuring a Cellular Interface on Cisco IOS (CDMA)

Jun 8, 2010

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In: Cisco Products

Jaydien Networks Solutions has recently had the opportunity to get our hands on a Cisco 881 router with a 3G card. Our customer has a Verizon account and we were successfully able to configure it accordingly.

Here are the steps we took:

5.1.0 500-’Firewall Error’ – Cisco Firewall or Cisco UC500

Jun 7, 2010

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In: Cisco Products

5.1.0 500-’Firewall Error’

Issue: Repeated Error: #500 Firewall Error ## -or- #5.0.0 smtp; 5.1.0 – Unknown address error 500-’Firewall Error’ (delivery attempts: 0)> #SMTP#

Cause: The Cisco firewall has a configuration entry like the following (it may have additional parameters specified after in addition to esmtp):

ip inspect name esmtp

This problem occurs because of incompatibilities or restrictions caused by the Cisco firewall configuration. It is more likely to occur if you are sending an email to multiple recipients or using a distribution list in Exchange. 

Please Note: If using CCA to apply, re-apply, resety or midify your Cisco firewall, this entry may be re-inserted by CCA and you will have to manually remove.