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TCP Over IP Bandwidth Overhead

How long will it take to transfer a 100MB file over an IPSec tunnel running across a dedicated 100Mbps Ethernet link? 1 Second? Fail! 8s? You’re getting warmer. It’s almost 8.5s without the IPSec and...

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IPSec Bandwidth Overhead Using AES

Someone asked so lets walk through the overhead introduced when using IPSec with AES; it’s higher than you might think and I haven’t even factored in ISAKMP. Encryption really isn’t ‘my bag’ so if...

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TCP Port Numbers for Contemporary Applications

A list of default TCP port numbers for contemporary applications such as Docker, Elastic, OpenStack and Puppet. Why? Whenever I’m trying to identify an application by port number, the usual online...

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TCP Over IP Bandwidth Overhead

How long will it take to transfer a 100MB file over an IPSec tunnel running across a dedicated 100Mbps Ethernet link? 1 Second? Fail! 8s? You’re getting warmer. It’s almost 8.5s without the IPSec and...

View Article

IPSec Bandwidth Overhead Using AES

Someone asked so lets walk through the overhead introduced when using IPSec with AES; it’s higher than you might think and I haven’t even factored in ISAKMP. Encryption really isn’t ‘my bag’ so if...

View Article


TCP Port Numbers for Contemporary Applications

A list of default TCP port numbers for contemporary applications such as Docker, Elastic, OpenStack and Puppet. Why? Whenever I’m trying to identify an application by port number, the usual online...

View Article
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