started becoming more active on linkedin and been slacking off on my blog, lol. The DC trip was fantastic, being on a strict budget all we paid for was gas for travel, hotel and food. Since all the national monuments and most museums are free, it's great! We saw the Smithsonian zoo, capital, supreme court, botanical garden, Smithsonian native american museum, Smithsonian air and space museum, Lincoln, WWII and Washington monuments, and NASA Goddard space visitors center and NSA's cryptologic museum. All in less then 3 days.. Super busy! The most surprisingly best part was the cryptologic museum, even my wife was interested :). The most disappointing was sadly the Goddard space visitors center, I was thinking it would be more like the Smithsonian air and space but it was much smaller, I'd much rather have visited the real NASA Goddard building! Actually I tried but got turned around at the gate:). Still, all sites I highly recommend seeing especially the zoo and botanical garden, they were fantastic!

Comments

Post a Comment

Popular posts from this blog

IPv6 Notes

So I started studying for the Server 2008 Network Infrastructure exam.  I got through IPv4 in the study guide, even though I need to keep practicing Variable Length Subnetting. I'll probably do a post on that too for my own reference. This is just some notes on IPv6 for future reference. IPv6 uses 128bit addresses, which totals 3.4 undecillion unique addresses. The address is comprised of 8 sets of 16bit words (called blocks) separated by colons (2001:0DB8:3FA9:0000:0000:0000:00D3:9C58). You can shorten the addresses by omitting the first 0s in each block (0DB8 is going the same as DB8).  Also 16bit words of :0000:, they can be shorten to :0: The final tip is for addresses with one or more consecutive blocks of :0000:, you can replace all the zeros and colons with just 2 colons (::).  This technique can only be used once per address, the other 2 can be used more multiple times. Because each address has a standard length of 128 bits, it's easy to figure out how many 0 ...
Read more

NetBios is finally dead

I'm sure everyone already knew this, but its new to me. Starting with Vista, NetBIOS is officially not recommended! It can be disabled in a Server 2008, windows vista/7 environment. It has been replaced with Link Local Multicast Name Resolution, which is compatible with IPv6, unlike NetBIOS. WINS is also thrown out the window, no pun intended. LLMNR does not use WINS. LLMNR only works on the current broadcast domain, like NetBIOS, but because LLMNR doesn't use WINS, there is no way to use it outside the broadcast domain, which is fine since you should be using DNS for that.
Read more

IPv6 Transition

4 different technologies exist to ease the transition from IPv4 to IPv6. Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) : this tunneling protocol is meant for private networks to allow hosts on IPv4 networks to communicate with hosts on IPv6 networks. There must be an ISATAP router between the IPv4 and IPv6 networks, the hosts on the IPV4 network must have the ISATAP interface on their computers. Tunnel works by putting the ipv4 address inside the IPv6 address. 6to4 : Is a protocol intended to be used on the Internet to allow IPv6 clients to access IPv4 Internet resources. There needs to be a 6to4 host on the IPv6 intranet that has their IPv4 routers address embedded in its IPv6 address, a 6to4 router between the IPv6 intranet and the IPv4 Internet resource, there can also be a 6to4 relay to link the IPv4 Internet to the IPv6 Internet so the 6to4 host can also access the IPv6 Internet outside the ipv4 Internet.  6to4 users IP Protocol 41 encapsulation. Teredo : A tu...
Read more