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Questions tagged [isp]

An Internet service provider (ISP) is an organization that provides access to the Internet.

An Internet service provider (ISP) is an organization that provides access to the Internet.

Internet service providers can be either community-owned and non-profit, or privately owned and for-profit.

Access ISPs directly connect clients to the Internet using copper wires, wireless or fiber-optic connections. Hosting ISPs lease server space for smaller businesses and other people (colocation). Transit ISPs provide large amounts of bandwidth for connecting hosting ISPs to access ISPs.

There are 3 tiers:

  • Tier 1: a tier 1 network is one that can reach every other network on the Internet without purchasing IP transit or paying settlements.
  • Tier 2: a tier that can access some part of the network without paying transit
  • Tier 3: only uses transit

Source wikipedia

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How to make old router as access point?

I have installed a new router at my home, the new router has 4 ports. And the ISP only allowed for one port to have internet connection using ethernet. That port is taken by another person, and now only 3 ports left that don't have internet…
John Sall
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Gateway failover

I have an Ubuntu server acting as a gateway for inbound internet connections. This server shut down unexpectedly because of overheating and lost all internet connections during business hours. How can I implement a fail-over on a back-up server that…
Drgmrsc
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How exactly the network bandwidth is calculated and in which layer of OSI Model?

We can see everyday our bandwidth is calculated by ISP's , Mobile Telecoms and Cloud Services. But how exactly they calculate this bandwidth? Do they count number of tcp/udp packets in layer 4? If so, do they ignore icmp packets?
Akhil
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site is not accessable on single ip

OUR SIDE: The website is hosted by WordPress on DreamHost server. There are not any filters in WordPress and I can't see any IP blocks on Dreamhost server. CLIENT SIDE: Client has a single internet connection with 3 public IP. There are no firewalls…
Sagar Khatiwada
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Changing nameservers when our ISP is our current nameserver

We are looking into changing our name servers. Currently, Our nameservers point to our ISP. They handle all of our public DNS Entries. I am under the understanding that in order to experience minimal downtime you should configure your DNS on the new…
S. Walker
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exchange 2007, dual wan draytek 2925n router with 2 ISPs

Purchased a Vigor Draytek 2925n dual wan router. Domain is hosted by dreamhost.com and the single mx record points to exchange.mydomain.com Internet is provided by my managed office building: they provide a static IP address. I'd like to get another…
svimes
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ISP provider for big sites?

I want to know what ISP is running sites like stackoverflow, basecamp, asana, etc. I guess not everyone is running on VPS as an in-house server can have much more horse power for the price than what is offered by VPS providers. So once you have you…
David Hofmann
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How to find out why website is not accessible?

I cannot access a certain website. There are two possible reasons: The block is on the ISP side. The block is at the website. Is there a technical way to figure out which of these are causing the problem?
Sleepster
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SPF record for sending emails

The website is under our server with the domain: xxxx.org.il the client email is xxxx@yyyyyy.co.il the email they get is from a third party the email we sent from the website are trough one of the ISP here with authentication for one of our local…
Y.G.J
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Connecting two IPs like an URL

I haven't found answer anywhere, so here comes the question. My ISP connected me to a router with thousands of other clients, so my public IP is the same as many others. And I want to make a small private server which can be accessible across whole…
pfoof
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How to become an ISP

well cutting to the point... I want to be able to provide internet to rural areas of my country so they can too gain acces to internet for free. I was wondering what I need to start small, like provide internet on a block or something, hoping…
drodri420
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Can ISPs see which IP that has been assigned to a customer in each others network?

Is there some sort of shared knowledge between ISPs that make them able to see which customer an IP has been given to, no matter which ISP the IP belongs to? I.e. is someone that is an ISP able to see which customer an IP address is assigned to,…
user1049697
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Stealing internet by changing MAC address?

OK - I have a static IP - and I have been on the same provider for years - its a wired network (a cable goes directly to my network card) - and the cable is connected to a switch on a pole in the street (the pole is connected to another pole which…
George
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Is this server setup efficent?

I have a web server at home. My IP address changes very often. My domain registrar is GoDaddy, so DynDNS does not work because GoDaddy only allows IP addresses for the A DNS Record. I can set a CNAME for www.mydomain.com that points to…
Leo Jiang
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I cannot access some sites from my ISP sometimes

This happens a lot to my own sites that i browse daily from my ISP internet. Most of them are wordpress site. I host in webhosting provided by hostforweb. First it opens well and i can login to admin panels and access site for some time. whenever i…
Yalamber
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