Questions tagged [isp]
An Internet service provider (ISP) is an organization that provides access to the Internet.
288
questions
0
votes
0answers
6 views
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 ...
0
votes
0answers
32 views
Managing remote Docker webservers with ISPConfig
I am looking to revamp my hosting architecture, I have a number of different sites on different servers.
I have setup all these sites using docker compose with a remote DB server, I like the way I ...
0
votes
1answer
111 views
Can my ISP detect what YouTube stream quality i play on my device [closed]
I would like to know if there is a way that my ISP can detect the youtube stream quality I use on my device.
For Example-
When I watch youtube video in 360p resolution and I move to the 1080p ...
5
votes
2answers
145 views
Why are many DNS servers not returning the namservers for my domain correctly?
My website has become widely inaccessible and I don't know why.
Up until recently I have been serving my website through cloudflare, so was using their nameservers. Recently I started using Route 53, ...
55
votes
6answers
13k views
Some ISPs don't charge for bandwidth used on Youtube/Netflix/Facebook. How do they monitor that? [closed]
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 ...
0
votes
0answers
62 views
HAProxy + Dovecot + Gluster
I'm looking to setup 2 dovecot servers behind HAProxy using gluster for a high-availability solution. From the reading I've been doing, it seems that dovecot highly suggests the use of the dovecot ...
0
votes
0answers
14 views
Sudden unavailability of Azure web applications. Only from local network
We host a lot of services on Azure. Intermittently we've been having a total loss of connectivity to these services. But only from our local LAN. If we connect via another internet connection there's ...
0
votes
1answer
21 views
VPN Tunneling through Multiple NAT environment
I currently building a DIY surveillance system based off of a QNAP NAS. The NAS will store the data, control the cameras, and act as a VPN Server for external access.
I've managed to get all the the ...
-1
votes
1answer
53 views
Is it possible to use a DNS server as a proxy? [closed]
My mobile internet provider cuts my internet service at times before it was due, I contacted them and they did nothing about it
I noticed I could still ping hostnames, thus I can connect to the dns ...
0
votes
1answer
54 views
How to diagnose source of website blocking?
When accessing sites through my ISP, certain sites don't load. The DNS resolves fine (via nslookup; also, the hosts file is fine), but then accessing them through any port times out (eg. tracert or ...
0
votes
1answer
59 views
VNC ISPSystem glitches on high resolution
I am trying to perform an installation of Android x86 8.1 RC2 on VPS through the means of ISP panel, via VNC. Here is what I see in any VNC client (noVNC, VNC Viewer):
Such a bug only appears after ...
0
votes
0answers
16 views
Connect 2 ISP/ 1 Load Balancer/ 1 Switch/ 8 Wireless Routers
I'm building a small network, we have two different ISP, a peplink multi-wan load balancer, one netgear switch with 52 ports and 8 wireless router. So my question i, if it's possible to connect the ...
2
votes
0answers
56 views
WAN failover for local mail server
I have a question about possible failover solution for internet connection to local mail server in one small office where are problems with ISP. There is Kerio Control server with public static IP 1.1....
0
votes
1answer
42 views
Under volumetric DDoS can I prevent ISP null-routing by turning NIC off briefly?
A server in a data center is getting a volumetric DDoS attack. Congestion starts to build up and the data center/ISP going to solve this by null-routing (RTBH routing) the server's IP address for ...
1
vote
2answers
87 views
Small ISP asked to whitelist all of their IPs
We are running a dedicated server as a shared hosting for ~100 clients.
This week, a small ISP asked use to whitelist the range of their IPs because all of his clients can't see our websites.
I'm ...
-1
votes
1answer
100 views
How exactly the network bandwidth is calculated and in which layer of OSI Model? [closed]
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, ...
-2
votes
1answer
59 views
Abuse report for spamming…abuse report [closed]
Few weeks ago, i activated on my server on automatic abuse report mail when someone try to brute force my SSH, i did it because i got an average of 3000 spamming IP each weeks.
But today, my ISP send ...
0
votes
1answer
51 views
Change Of External Static IP – Two Servers Connected
I’ve recently come to manage the IT at a small organisation and am in the process of figuring out their setup (they previously outsourced IT work). They have a main server (running Windows Server 2008 ...
0
votes
1answer
84 views
Serving images is too slow in certain ISP
I'm serving Images as part of my website for a long time now, but recently images became too slow on a certain ISP!
I'm hosting on DigitalOcean with a load balancer (with http2 rule) in front of ...
1
vote
1answer
43 views
Building reliable internet speed test tools
I'm interested in building a command-line speed test tool similar to the one used here. I started using it in a cron job to automatically check and record speeds at different times when we started ...
2
votes
2answers
85 views
Access two ISP at once for failover
Assumptions:
Office locale with a dedicated leased line is literally a factor of 50x more expensive than broadband.
I know nothing of office networking, but will hire appropriately if
this is ...
4
votes
2answers
232 views
DNS forwarding or root hints
The author of Best practices for DNS forwarding [petri.com] recommends using the ISP's DNS servers as forwarders instead of doing the recursive lookups yourself, the main reason being performance. ...
0
votes
2answers
120 views
PTR record only visible on two public name servers
I submitted a request to an ISP (CableOne) to have a PTR record created..
160.2.202.58 mail.huntleylaw.com
I've queried 30+ Public DNS servers and I've only been able to find the PTR record on two.....
-2
votes
3answers
205 views
ISP gave me 3 ppoe accounts for 3 dedicated IPs, what kind of router do I need?
I made an optic fiber ISP contract that included 1 dedicated IP addresses and 2 additional dedicated IP addresses, now when they gave me the 3 IPs I see I have actually 3 different ppoe accounts.
Is ...
-1
votes
1answer
24 views
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 ...
2
votes
1answer
96 views
When an ISP is DDoSed, will its NOC have Internet access?
When an ISP is hit by a huge DDoS attack and its data plane is severely congested, will its Network Operations Center (NOC) have alternative Internet access?
I'm curious what would be the industry ...
0
votes
2answers
50 views
Why does my network traffic appear to not go through what my router calls my “WAN default gateway”? [closed]
Bear with me a bit as I might be completely misunderstanding something. I'm a very-early-in-education networking student and at the moment I'm tinkering with my router settings while studying.
I ...
0
votes
1answer
143 views
Putting ISP public IPs on two different firewalls
Trying to figure out if I need a router or switch for this.
Nothing is yet configured, and I can still order equipment.
I have incoming: Two internet connections. One (ISP-1) of which has given us a ...
2
votes
3answers
2k views
IPv6 - How does my ISP know how to route traffic to my delegated subnet?
My question is somewhat related to this question: What ISP needs to provide in order to route native IPv6 /56 range to several VLANs Where that question focused on the private side of a router, my ...
4
votes
4answers
1k views
DDoS block source IP at ISP
During a DDoS attack even when you successfully stop it at your datacenter the link between you and your ISP will still be saturated and traffic brought to a halt.
In this case what is the best way ...
-4
votes
1answer
2k views
How to find ip pool of my isp? [closed]
I could eventually get all ips my isp is using by restarting my router and writing down the ips I get but that's very time consuming, so is there any way to get ip pool of my isp?
5
votes
1answer
991 views
Carrier Grade NAT concepts: IP bans
I'd like to deploy a Wireless WAN using IPV6 for at least the wireless bits given that 6 offers higher through-put. I'm exploring the concept of CGN and what strikes me immediately is the liability.
...
-1
votes
2answers
99 views
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 ...
1
vote
0answers
68 views
Server won't return some requests to single ISP
I have a Linode server that won't return random GET requests to my usual ISP (but never gets stuck with the same one each time). If I switch ISP or use Opera VPN, all works well.
Linode says all ...
0
votes
1answer
87 views
How do I allow access to a web server on an ISP that shares one IP address among all customers?
I'm a customer of a wireless ISP that shares one WAN IP address among all customers. If any of the ISP's clients log on to whatismyip.com, they will see the exact same IP address, which will look ...
1
vote
1answer
145 views
Why IPs from the Private Address Space would be reachable through public network, and what customers can do about it?
Scenario:
I have a customer running a Win7 Pro and an OpenVPN client; this workstation is used from one of their employees to send remote cmds to the (Windows) OpenVPN server, both using psexec and ...
0
votes
1answer
484 views
DNS changes not propagating after over a month and two changes for one specific Central American ISP
I volunteered at an event last month that helps non-profit organizations get some attention for their web needs.
My organization needed new hosting. I spun up an AWS EC2 instance, we installed Apache,...
27
votes
10answers
7k views
How can I buy end-user bandwidth for my customers? [closed]
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 ...
-2
votes
6answers
98 views
Share same IP with two Service providers
I own a GPS vehicle tracking device company. The GPS devices are installed on the vehicles and it can be tracked anywhere in the world. All the GPS device has one server IP in them for tracking the ...
0
votes
1answer
1k views
Port forwarding on local network
My router is forwarding both ports 80 & 443 to my Linux (Ubuntu 16) box...and everything works great.
To access my Linux box from my laptop (Windows 7) I only have to type in my public IP address ...
0
votes
1answer
299 views
Cisco 1811w + dual wan failover on DHCP ISP
Ok so my setup is, I have 2 vlans currently routing through fa0 on cable internet with DHCP. I want to be able to plug dsl, also dhcp, into fa1 and have it work as an auto failover if fa0 goes down. I ...
0
votes
1answer
6k views
What is the purpose of multiple ethernet ports on my modem? [closed]
I have a static IP and I wanted to set up another one. After calling up my ISP and getting another static address, I tried to plug a second router into my NetVanta 838T modem, but could not connect to ...
0
votes
1answer
345 views
Change ISP (with new IP Block) and DNS Servers without Downtime
We are transitioning from our current ISP to a new ISP and have a new block of IPs to utilize going forward. We host our own DNS servers internally and two of those new IPs will point to them upon ...
1
vote
2answers
460 views
Getting the ISP for sending a DMCA Takedown Notice from IP address or domain name
There is this site which is cloning our project "pixabay.com" in basically everything: contents, layout, etc. We would like to send a DMCA Takedown Notice to their ISP. However, when looking up the ...
0
votes
2answers
2k views
Can't connect to specific IP address and/or TCP port - can the ISP be blocking it?
I have a RDP user who has successfully been using RDP from his laptop to his workstation in our office when he is at home.
It is configured to use our public IP and port 10378 and has been working ...
1
vote
1answer
61 views
Cisco ASA as ISP GW in small office
I have Cisco ASA forming static route relationship with a ISP router.
I'm not looking to use any fancy Anyconnect VPN or IPS Firewall.
But some simple ACLs to secure the network as security tone.
...
0
votes
1answer
336 views
Debug ISP connection issue (Pfsense bogon network list out-of-date)
I have access to the office from outside (VPN, e-mail, etc.). I have at home Internet from ISP(A) and at office from ISP(B). Everything were working fine till I received an e-mail from my ISP(A) that ...
1
vote
2answers
183 views
ISP is DNS Hijacking. Updated DNS to Google OpenDNS, but still hijacked [closed]
I'm visiting India, and saw that their main provider, Airtel, limits the entirety of the internet to just a small handful of websites festooned with their own advertisements, and annoying redirects.
...
-4
votes
1answer
1k views
How to set up a network connection with 2 ISP,s 2 Routers and 1 switch
I want to use 2 ISP providers at the same time, to avoid downtime. Here's a diagram of what I want to do:
What settings should I use for the routers and can I force PCs to use ISP#1 when online and ...
-3
votes
1answer
132 views
VPN and data transfer [closed]
I connect from my home computer to our company VPN. Then I login via ssh, from my desktop, to our company server which is actually a Google cloud machine. From the command prompt on that server, I ...
