Tag Archives: firewall

The IT Detective Agency: the case of the Is it the firewall? or routing? or switch? or layer 2?

Intro This is yet another tale of things in the IT world often do not turn out the way it seems at first blush. Or possibly a tale of just when you think you’ve seen it all after decades in … Continue reading

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Firewall is a significant drag on download speeds

Intro This post might be a restatement of the obvious to some, but I thought it was noteworthy enough to measure and mention this affect. I was twiddling my thumbs during a long sftp upload when I began to notice … Continue reading

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The IT Detective Agency: Debugging a Thorny Citrix Connection Issue

This case begins with the observation by the application owner for Citrix XenApp. External users were being knocked out of their sessions frequently – several times a day. And it happened en masse. Before this problem users were typically logged … Continue reading

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