Firewalls and VOIP
Got VOIP? And if you are a company that deals with the internet most probably, you got a firewall too! Could it be a Cisco PIX? Well fear no more.
You can configure the PIX to allow the VOIP traffic and still keep your network safe.
Cisco itself is offering a sample configuration for PIX 500 series Firewalls.
The sample configuration, a PIX firewall is configured to allow the traversal of two different Voice over IP (VoIP) protocols, H.323, and Session Initiation Protocol (SIP). Due to the fact that VoIP protocols are made up of signaling and IP address/port combinations, there are a number of issues with VoIP and Network Address Translations (NAT). The PIX firewall fixup protocol addresses these issues.
Here is the document
1 comments:
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Yahoo Boasts Size of Its Search Engine Index
Trying not to include any phallic analogies, Yahoo this week announced that its overall search engine index is much larger than Google’s and is the most in depth index of ‘web objects’ on the search market. On the Yahoo Search Blog, Yahoo disclosed that its index now includes 19.2 billion web documents, 1.6 billion images and more than 50 million audio and video files - over 20 billion items.
Yahoo is usually shy about disclosing the size of its search index, but the Yahoo Search Blog is celebrating its first year anniversary and Tim Mayer thought that somewhat of a retrospect was in order - since Yahoo has grown into its own as a search engine powerhouse over the past 365 days.
From the YSearchBlog : While we typically don’t disclose size (since we’ve always said that size is only one dimension of the quality of a search engine), for those who are curious this update includes just over 19.2 billion web documents, 1.6 billion images, and over 50 million audio and video files.
Note that as with all index updates we are still tuning things so you’ll continue to see some fluctuation in ranking over the next few weeks.
Greg Sterling of the Kelsey Group, however, makes the distinction of quality over quantity What I, Joseph User, care about is accuracy, quality and relevance. The available index does matter in terms of bringing me a sufficient quantity of results. (And if I’m looking for something really obscure, having that thing in the index is obviously important, which may go to size.).
But there’s a major case of diminishing returns—there’s already way too much information online for people to assimilate. Throwing more volume at me does nothing but make my eyes glaze over. What I want is enough relevant results.”
Index schmindex, the moral of the story is what Yahoo has accomplished over the past year and what the next 12 months will bring with not only Yahoo Search, but the Yahoo Publishers Network, Yahoo LinkSpots, Yahoo Pay Per Call, and Site Explorer. What has Yahoo accomplished over the past year? Well, here’s Tim’s rundown :
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