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Rules may be specified to replace existing Rules in the chain.

In the example shown previously, the first Rule given allows connections to the http port (port 80) from anywhere.

Therefore, for example, if a Rule rejecting ssh connections is created, and afterward another Rule is specified allowing ssh, the Rule to reject is applied and the later Rule to accept the ssh connection is not.This seems pretty consistent with what I am seeing, with the process working with clients in the same network segment as the PXE Server, but not on segments separated by a switch or router.We have a highly granular structure to our network, everything separated by VLANs.So, for example, if you want to insert a Rule before the third rule you specify the number 3.Afterward, the existing Rule will then be in the fourth position in the chain.

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