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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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OpenWrt allow IPv6 rule to access a server with global IPv6 on local area

First of all, I have a domain with dns configured to point to my device global address witch is set to static with my ISP gloabl prefix as xxxx:xxxx:xxxx:de01::3/64 in dhcpcd.conf. I'm using Openwrt router as my main router plugged in my ISP ONT. I…
JB_DELR
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DNS Settings Being Ignored

I'm trying to set up my LAN with OpenDNS, and it seems that my DNS settings are being completely ignored. Even if I set my laptop (running Ubuntu) to have only the OpenDNS primary IP (and verify in resolv.conf that NetworkManager did its job)…
singpolyma
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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 not a server/network guy, I only know the minimum to…
g_marchildon
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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 having inconsistent download speeds at our office.…
user482740
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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 looks ok to them. The server's resources are fine…
biscuitstack
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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 smb. What happend: Everything went fine for years,…
Marco
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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 violating domain "maxpixel.freegreatpicture.com",…
Simon Steinberger
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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. Config is pasted below, Is stateful-firewall assumed…
user192756
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ISP is DNS Hijacking. Updated DNS to Google OpenDNS, but still hijacked

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. I'm trying to come up with a simple and easy way…
Trip
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ISP provides 400MB connection but behind iptables firewall I only get about 150MB

I have COX communications as my ISP and I have a 400 MB connection at work. I have had for years an iptables firewall I setup that runs great. CPU Info Intel® Core™ i5-2400 Processor (6M Cache, 3.10 GHz) I have 2 1000Mb/s NICs in it. 2 x DGE-530T…
Cesar Bielich
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Traceroute and BGP peering

Doing a traceroute for example: 1: 1ms 1ms 1ms 1.1.1.1 2: 2ms 2ms 2ms 2.2.2.2 3: 5ms 5ms 5ms 3.3.3.3 4: 9ms 9ms 9ms 4.4.4.4 My question is: If the AS number of 2.2.2.2 and 3.3.3.3 are not peering directly, is it possible to get a traceroute…
Shiji.J
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Can DNS response answers be in a different case than the query?

Example (1) of an expected DNS lookup result: nslookup google.com Server: 192.168.1.1 Address: 192.168.1.1#53 Non-authoritative answer: Name: google.com Address: 173.194.123.41 Name: google.com Address: 173.194.123.33 ... Example (2) of what I am…
hooby3dfx
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Moving to different hosting provider, what does it mean for MX record and static IP?

Currently, our ISP is also our hosting provider. Our MX record points to mail.example.com. when our website is at example.com pinging mail.example.com gives the static IP we get from our ISP. The secondary MX record points to our ISP. Pinging…
Ernst
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Same VLAN for LAN only and Internet users on 802.1x network with pfSense as gateway

I am creating an ISP for a student residence. The LAN is already there and working, with several CISCO switches. I want to provide Internet by a secured and automatic way to those who pay for it (monthly). In short future, there also might be an…
qschulz
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Access internal ip (home server) through double NAT (router + ISP)

I have home server (debian-like machine) inside my wifi-network. I wan't to access it over http (for transmission-daemon web interface) and over ssh (to administrate it). The issue is that there are two nats in the network: my router's and my ISP's.…
Bruno Gelb
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