Server Fault Stack Exchange
Server Fault Stack Exchange

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

312 questions
64
votes
7 answers

Government censors HTTPS traffic to our website. Workarounds?

I am helping run a website that has been blocked for political reasons by the same Russian agency that has previously tried blocking Telegram (RosKomNadzor). This is not the first time it happens, and previously we would just change the domain, but…
Mary
  • 583
  • 3
  • 7
56
votes
6 answers

Some ISPs don't charge for bandwidth used on Youtube/Netflix/Facebook. How do they monitor that?

In Poland, it is common for mobile ISPs to offer plans with limited amount of bandwidth per month, with exclusion of some popular apps. So for example all traffic from YouTube is not counted towards the data cap. Aside from net neutrality issues, I…
Kuba Orlik
  • 651
  • 1
  • 5
  • 9
33
votes
3 answers

ISP broadcasting all IP-packets, so I can see traffic of other clients from ISP

Recently I wondered why my router shows a constant downstream of 5 MBit/s, while I am downloading almost no data. I discovered the "packet logging" function of my router, with which I was able to log all the traffic in the wireshark format. And I…
user3297416
  • 443
  • 4
  • 5
30
votes
4 answers

Our wi-fi at work is ridiculously slow, will adding more range extenders improve it?

At work, we have two wireless networks (e.g., Work1 Work2); the Work2 is used downstairs and Work1 is used upstairs. However, both are notoriously slow. The connection is better when we are wired in, but unfortunately due to our building being very…
john
  • 467
  • 1
  • 5
  • 5
27
votes
10 answers

How can I buy end-user bandwidth for my customers?

I sell a product to customers, and as part of this product I have a website where customers can upload data for processing. The data is of considerable size (gigabytes). I am looking to buy extra bandwidth for my customers, and to make the…
Owen
  • 381
  • 3
  • 7
24
votes
13 answers

Server Hosting from your House - $200 to $300 per month range

I'm a developer lacking some infrastructure knowledge. What is the fattest pipe I can get to my house in the $200 to $300 range? I'd like to host a few servers at my house. Then if my company gets large enough or the traffic needs to "super-scale"…
Tyndall
  • 591
  • 1
  • 7
  • 18
23
votes
2 answers

SOA and Primary NS record (DNS)

The brunt of the question is this -- What is the relationship between the primary nameserver specified in the SOA record and the nameservers specified in the NS records. How are these things linked? When I query most websites, I get…
scraft3613
  • 470
  • 1
  • 4
  • 12
17
votes
6 answers

How does an ISP block my website with a warning message

I have searched about this topic on Google but mostly I got the result how to unblock website blocked by ISPs. So, I have a website that is being blocked from viewing by audiences and when I go to my domain www.mydomain.com, it will redirect all…
MaXi32
  • 367
  • 2
  • 11
16
votes
1 answer

How does DNS nameserver fall back work?

We have two DNS servers listed in our NS record. Last night, one of our DNS servers went down. As expected, some DNS servers were not resolving our hostnames. I assumed this would be temporary and would start working once the TTL of our NS records…
Belmin Fernandez
  • 10,629
  • 26
  • 84
  • 145
15
votes
2 answers

How can I gain better insight into ISP-managed equipment (routers)?

I have a number of customers who have networking equipment managed by their ISP. This is usually in the form of an ISP-provided switch or router placed at the customer location(s). For sites that have MPLS or multi-location connectivity, it would be…
ewwhite
  • 194,921
  • 91
  • 434
  • 799
13
votes
7 answers

Changing Servers - Redirect to new IP = No Downtime?

I am changing servers of my website. The IP of old server cannot be moved to the new one. To have no downtime I am planing to do the following, please someone confirm it will work: Setup the new server and listen on the new IP Old server redirect…
Denis Pshenov
  • 227
  • 1
  • 2
  • 9
12
votes
2 answers

postfix says mail sent ok, message does not arrive in ISPs inbox? no reject in log?

When I send a test message from my mail server to my @bellsouth.net email, The postfix log shows it was sent OK, but the message never arrives in my bellsouth inbox. Shouldn't I get a failure notice or a bounce if At&T is blocking the messages? I'm…
Nick
  • 4,433
  • 29
  • 67
  • 95
12
votes
2 answers

Linux TC class/filter numbering

I'm currently working on a traffic shaping solution for ISP-level companies, and came to an interesting (kindof philosophical) problem. Looking about the number of endpoints the system should handle (which is around ~20k) I got a little worried what…
exa
  • 571
  • 4
  • 14
10
votes
1 answer

Debugging slow transfer rate from server

I'm trying to explain this as simple but documented as possible. This is not exclusive to this server or my current ISP. I've seen the same exact issue over the years while being with different ISPs and having my servers with different providers…
Francisco Zarabozo
  • 251
  • 2
  • 3
  • 12
10
votes
1 answer

Microsoft is blocking mail from entire netblock. ISP doesn't know what to do?

I recently moved a client from basic T1 service to a multi-site MPLS solution with same vendor. The ISP, XO Communications, provided a decade of stable service as a T1 provider. The process of moving to the MPLS was a bit rocky and involved an IP…
ewwhite
  • 194,921
  • 91
  • 434
  • 799
1
2 3
…
20 21