How is my IP address assigned?

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My roommate has my ip address, can they get acccess into my computer through theirs? Like can they see what I do and see my email?
I gave it to them so they could try to get online with their computer, but now I'm not so sure I should of gave it to them.
By the way I have a cable connection if that matters and no router.
Please help!
Thank you

I have a sonicwall TZ 180 and I want to make 3 servers static. For some reason I cannot get the sonicwall to work with static ip addresses that I set in windows (TCP/IP settings). It works just fine with DHCP on router, but I cannot get the servers to work statically. Am I missing something?

WRONG! A router connects two (or more) networks together. Look up what a gateway and proxy are. And read a book. It's always funny to see n00bs writting articles for other n00bs trying to sound like they know what they are doing.

HI this article was really very simple to understand and was very helpful

Thanks...
Zac

Can we assign an IP address to an ARM microcontroller?

I have a hp pavilion desk top,I'm try to set up my quest qiuckconnect,The phone company told me I need to set my IP address to default,How do I do this?

if only the last two number is not the same and im getting email from 2 different person from same ip for eg

ddd.DD.FF.RT
ddd.DD.FF.HG
does this mean they using one pc ??

setting up a security system with internet connection with a router on the network. however when trying to connect from net no response. when ping the ip message destination port unknown comes up

how my dhcp scope will create to my local lan while there is no scope creation for ipv6.

good day Leo

I have a static IP at home but i cannot get througth to my pc from the my office.

can you tell me if i have to do some adjustments to my home pc.

thanks regards

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