Q: What is the default DNS cache expiration time?
A: Whether or not a DNS query cached is based on the response from the respective DNS server(s):
If DNS responds that the query is non-cacheable, the cache time-to-live (TTL) is set to 0.
If DNS responds that the query is cacheable, the cache TTL is set to a value in seconds.
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This tutorial shows how to create NSM GUI Client login Banner
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This article shows how to create a banner on juniper NSM and the NSMxpess appliance when you need to deliver pre-log in messages to users logging in.
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pf-kernel is yet another Linux kernel fork which provides you with a handful of awesome features not merged into mainline. It is based on neither existing Linux fork nor patchset, although some unofficial ports may be used if required patches haven’t been released officially. The name of the fork is by no means related to BSD Packet Filter. «pf» stands for «post-factum», the author’s nickname.