IP Addresses
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- unknown
Looking for gen. info on IP Addresses. What are they? What do they do? Are they traceable on both 56K and DSL/Broadband? Can they be borrowed?
And any other info you might have on them would be great.
thanks,
bB
- CAJTBr0
everyone connected to the internet has an IP address.
this page gets to you because a message is sent from your IP address, requesting this page. the newstoday server looks through its database and sends this page to you, by telling the next server along to keep passing it till it gets to your IP address.
IP stands for Internet Protocol.
they can't really be borrowed (spoofing is possible, but rare). an ISP will own a range of IP addresses, and on 56k (generally) you'll be assigned one from that range when you connect to the internet. on broadband (generally) you'll have your own assigned IP, that will never change.
what do you want the info for? maybe context would get you some better answers.
- sp0
an ip address is a 32 bit number, broken into a 4 (and now 6) section dotted decimal notation.
e.g.: xxx.xxx.xxx.xxx
there are 4 classes of ip, and the first number represents what class the ip address belongs to.
the rest deal with host information.
each number, asigned to a machine, serves as the address to that machine on the network. since the internet is nothing more than a collection of smaller internets (lans, extranets, the web, mail, dns, etc) each machine on the network must have a unique identifier.
in a nutshell that is what an ip is.
now, there is a lot more to it than that - and if you really want to know you should read some info on tcp/ip and dns/bind.
an ip is unverisally traceable - whether it is a printer, mail server, web server, etc...the connection method doesn't matter at all. so yes, 56k and dsl use the same ip address methodolgy.
borrowed? i'm not quite sure what this even means? i'm gonna say no on that one.
ips are unique. which poses a large problem since there are so many machines online now, ips are running out.
which was the reason for dns in the first place. instead of relying on a unique ip address, servers now look for domain names and host information. which is why you can run a single apache server, with one ip address and configure countless virtual domains - each having a unique name, and apache will resolve to the correct paths based on the httpd.conf.
makes life easier - although there are plenty of bugs in this idealogy.
also, IPv6 is now a reality, although public internets don't support it very well yet (apache 2.x does, yea...) but you can set up VPN's and private Lans and networks using IPv6 and they preform very swell.
:)
like i said, if you are really interested, pick up a dns/bind book and a tcp/ip book sometime.
- unknown0
thanks guys. a ton of info to process. and i have to say that sp, that is the most thorough answer i have ever received on the PV-AN. thx bro.
bB
- sp0
no problem.
- arlo0
What do you call using Photoshop with your nuts?
Scrotoshop.
- sauceruney0
good for tracing
- sp0
what is interesting to think about...is that right now, everyone in the world that owns a linksys router (or any router for that matter) is using the same ip address.
that is where the routing table and ip classes come into play.
there is a specific class of ips known as private ips.
for instance...my testing bed websrever runs on ip address:
192.168.1.4
but, since it's a private class ip, it is the same one that joe down the street may be using.
what sucks about this though - is an ISP can buy up a small block of public ip addresses, use them for their point of contact routers, and then dish privates off onto their dsl customers - which is what socket does to me.
so, my 10.0.1.xxx ip from socket is just like my 192.168.1.4 ip on my private lan.
sure, you can do some lookup with the right tools to track down the 10. address...but it still won't really do much for you.
it is good for isp's because it is cheaper...it is bad for customers because i can never host a live production server from my house unless i pay for a static ip. which is about a hundred bucks more than regular service.
it's all about port forwarding magic.
:)
it's best to understand that the internet is just small internets connected to eachother.
- sauceruney0
yeah, sp...
and I wonder how many of them have the default password still installed?
username: (blank)
password: admin
- sp0
hahhaha. probably everyone that had to call tech support.
:)
- enobrev0
sp any idea when qpv6 will be ubiquitous..
i've heard win2k is capable and some versions of linux, but any idea when it would become a standard?
- sp0
no. i haven't kept up on it much lately.
i just remember reading on the our local 'lug' [linux users group] mailing list that apache 2.x was able to take advantage of it.
more than that, dunno.
:)
- lament0
sounds like someone doesn't want to be IP-tracked when getting their MP3 download on because of the recent ruling with Verizon.
;)
- angelus350
Great answers, I don't think I can really add to this.