ISA Server Archives - Practical 365

SSL Certificate Trust Errors for New Thawte Certificates

Paul Cunningham — Fri, 27 Aug 2010 09:00:46 +0000

If you renew a Thawte SSL certificate or purchase a new one since 26th July 2010 you may encounter SSL certificate trust errors when clients connect to published websites such as Outlook Web Access.

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Publish incoming SMTP to the Exchange Server 2007 server with ISA Server 2006

Paul Cunningham — Fri, 04 Sep 2009 08:00:46 +0000

How to configure an ISA Server 2006 firewall rule to publish incoming email to the Exchange Server 2007 Hub Transport Server.

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Publish Exchange Server 2007 OWA Using ISA Server 2006

Paul Cunningham — Mon, 31 Aug 2009 08:30:27 +0000

Step by step guide for how to publish Exchange Server 2007 Outlook Web Access using an ISA Server 2006 firewall.

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Configuring the Exchange Server 2007 Hub Transport Server

Paul Cunningham — Tue, 25 Aug 2009 18:33:42 +0000

How to configure the Hub Transport Server connectors to send and receive internet email.

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Well-designed security systems fail gracefully, SonicWALL does not

Paul Cunningham — Sat, 06 Dec 2008 11:31:00 +0000

To quote Bruce Schneier, “well-designed security systems fail gracefully”. This means for example when the ISA firewall service fails it closes off network connectivity entirely (ie retains security) instead of opening your entire network up (ie decreases security). This week SonicWALL’s license servers suffered a glitch rendering thousands of customer units useless and leaving the […]

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Creating an ISA Reports Web Server

Paul Cunningham — Fri, 09 Nov 2007 11:09:33 +0000

ISAServer.org has published a guide for creating an ISA reports web server. It is a quick and easy solution to making the reports available to managers and other interested parties. For my ISA Server deployments I like to take it a step further and use a little ASP code to generate some nicer looking tables […]

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Tom Shinder on “hardware” firewalls

Paul Cunningham — Fri, 31 Aug 2007 04:19:07 +0000

Tom Shinder of ISAServer.org takes an amusing shot at the myth in some circles that a “hardware” firewall or “firewall appliance” offers more security than a Microsoft ISA Server firewall. I was drawn to a particular quote in his article about the relative security of ISA Server to other popular firewalls in the context of […]

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