help with my internet!!

[NiSyam]

Hey guys

Ive been experiencing some problems with my internet connection lately, there are a few website that i can go on!
Someone told me to check my dns in the internet connection but i have no idea where that is or what a dns is..

can anyone help me out please!

thanks!

[maddenbowler]

if you cant see this site ill copy and paste it
Wikipedia, the free encyclopedia (http://en.wikipedia.org/####/Domain_Name_System)

and i would try resetting your router or modem

[cobalt9123]

Most likely if you can't go to certain sites it's a firewall issue. Who is your ISP? What/Do you have an antivirus/firewall installed on your OS? Or one built into your OS?

It could possibly be a DNS issue but I doubt it.

[NiSyam]

its so weird, i was able to visit the sites i cant go on anymore.

I thought the were down or something but then i found out it was me. Im gonna call my internet provider.

[Pie]

Are you on Comcast? Their DNS gets messed up sometimes. I switched to using open dns.

You can change DNS by configuring your network adapter. Right click and manually assign DNS. Open DNS is:

208.67.222.222
208.67.220.220

[NiSyam]

thansk for the replys guys!

i just reseted my router and its old back to normal!

[cobalt9123]

Are you on Comcast? Their DNS gets messed up sometimes. I switched to using open dns.

You can change DNS by configuring your network adapter. Right click and manually assign DNS. Open DNS is:

208.67.222.222
208.67.220.220

I am a network technician and lately I have been fixing a ton of Comcast screw ups. They have a technician (the same one around my town) that set up a guy's Windows Server 2000 computer with a public IP address, no firewall, no anti virus. His computer was loaded with malware within an hour and I had to go out and reconfigure his network and remove the virii.

[maximus20895]

OH! I am in school for networking. I hope you like it :)

Yes, I got on my principal's computer via windows explorer! How simple!

A public IP address would consist of 192.x.x.x instead of say 10.x.x.x is that correct at all?

So is the problem fixed?

[NiSyam]

yeah problem fixed .

[maximus20895]

Did you just have to change the DNS IP or what?

[NiSyam]

i just turned off and on my router

[cobalt9123]

OH! I am in school for networking. I hope you like it :)

Yes, I got on my principal's computer via windows explorer! How simple!

A public IP address would consist of 192.x.x.x instead of say 10.x.x.x is that correct at all?

So is the problem fixed?

I love networking, I am starting school this Fall for Computer Science but I have been working at a company as a PC/Network technician for 2 years with a supervisor that knows ALMOST everything about computers..I love it.

Not exactly right on the IP addresses...10.0.0.0/255, 192.168.0.0/255, and 172.16.0.0/255 are actually all private IP addresses. This just essentially means the addresses are only important and relevant under the router and inside of the Local Area Network (LAN). Public IP addresses are "reachable" from the Internet and actually mean something to the internet. When your computer says your IP address is 192.168.100.105, that doesn't mean you're the only one with that address, because it is a private IP address, and is used under a router :props:

There are a LOT of public IP addresses (well, I say a lot, but we're slowly running out of public IPv4 addresses).

If you haven't already looked into it, I suggest you start your studies with the CompTIA Network+ certification. Search Amazon and you should find some good books!

[maximus20895]

Well..I kinda knew that when I typed it, but whatever. I know you have a seperate IP address..I mean.. a private and public. I know that if a private starts with 10..you have much more choices ..or options of how many IP addresses you can have..I use to know how to do the math..almost binary like, but it's been years.

Wow, before I read the whole thing I was going to ask about IPv4. Have you ever used IPv6 yet? Where is that mostly used? I know it frees up much more ip addresses.

I will get my compTIA cert next sem I think. I start all my real computer classes next semester.

[cobalt9123]

Well..I kinda knew that when I typed it, but whatever. I know you have a seperate IP address..I mean.. a private and public. I know that if a private starts with 10..you have much more choices ..or options of how many IP addresses you can have..I use to know how to do the math..almost binary like, but it's been years.

Wow, before I read the whole thing I was going to ask about IPv4. Have you ever used IPv6 yet? Where is that mostly used? I know it frees up much more ip addresses.

I will get my compTIA cert next sem I think. I start all my real computer classes next semester.

Yes, a private of ten has more options because it has more open addresses. Notice I put 10.0.0.0/255, that means it starts at 10.0.0.0 and ends at 10.255.255.255. That's opposed to 192.168.255.255 and 172.16.255.255. It has more. I'm sure they will teach you all of this :)

I have not used IPv6 but have many network devices that are IPv6 capable. IT incorporates the MAC(Media Access Control, essentially a unique identifier of the hardware) address into the IP address. This makes the IP addresses more unique, more specific, and most importantly more numerous. The only problem is, no one wants to go through the paint of implementing it widespread, because it would kind of be a pain! Windows Vista and Windows 7 are both IPv6 compatible operating systems.

[maximus20895]

Oh yea, I faintly remember this now.

I know Windows 7 was..and just don't get me started on how horrible Vista is, I just didn't know any devices that implement it.

Another thing I am lost at is subnet masks..All I see is 255 etc..