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

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When to expand a web server's unshared connection?

We have a 3 mbps by 3 mbps dedicated, unshared pipe that hosts a web server, mail server, and VoIP/web browsing traffic for 8 employees. The web server hosts a few different sites that average about ...
12
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1answer
3k views

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 ...
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2answers
117 views

Cisco ASA adding ISP static IP

We're about to switch from our old ISP to a new one. How do I assign static ISP-assigned IP CISCO ASA interface? Should I define it under NAT or Access Rules? Is it easier through console?
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1answer
824 views

Dual ISPs - Load balancing

We currently have 1 ISP and are adding a second. I need to load balance this into our current network so it shares the bandwidth between our 2 ISPs. We have a total of about 10 external IP addresses ...
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3answers
230 views

How do ISP's block ports? [closed]

I'm currently working on a small town in Argentina and the only ISP that gets here is called Arnet. The connection stability sucks, the help desk is anything but helpful (non techs hired for around 2 ...
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2answers
1k views

IPsec tunnel keep crashing

I have 2 locations. On each location is installed VPN device Cisco RV042. Link between location is optical fiber. ISP is the same. Link speed on location A is symetric 3/3 Mbps, and there is static ...
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1answer
89 views

How to diagnose whether a customer's ISP is throttling access to my website?

We host a website that servers up mostly static files, such as html and flash SWF files. The server is hosted in Auckland, New Zealand. Our customers are mainly secondary/high-schools. In general, ...
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2answers
970 views

How do ISPs calculate bandwidth? [closed]

I mean, is 100 GB per month 100 * 1000^3 bytes or 100 * 1024^3 bytes? Wondering if they use the decimal definition like HDD manufacturers or the binary definition. I do know that there's technically ...
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1answer
435 views

Which port of my computer is my ISP connected to? [closed]

I'm trying to find out the port number of my computer to which my ISP actually connects & provides the internet service, given my ADSL modem is operating in Bridge Mode instead of PPPoE. I ...
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2answers
943 views

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 ...
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3answers
643 views

Add frame window to all websites for users on network

I'm working for a small ISP and I'm trying to figure out how I can add a frame window to all websites that all users on our network see, so that we can promote faster speeds / notify users of ...
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5answers
132 views

Discrepancy between IPs in DNS and actual location address

I have inherited an environment where many things don't make sense and I am now in charge of making changes to it and for this I have to understand what the hell is going on before I modify. Long ...
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1answer
228 views

ubuntu-server 2 network devices, 2 isp

Hello I have the following szenario: I have 2 ISPs behind seperate routers, and one web/ssh-server with 2 ethernet cards. I want the webserver to be reachable from both isp. I have forwarderd each ...
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2answers
893 views

I cannot access some sites from my ISP sometimes [closed]

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 ...
2
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1answer
77 views

Questions and opinions of a Cable line with a back-up T1

My company currently has only a Covad T1 that connects the main office to the internet. This line is mainly for our billing office (located across the state) to connect to us for our Terminal Server. ...
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6answers
5k views

Intermittent high ping/latency problem

I have been working with my ISP (which is a WISP, actually Fixed Broadband Wireless) trying to figure out why I intermittently get high latency. The latency is detectable in online games and other ...
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1answer
117 views

File download speed issue over a dedicated fibre link

My ISP has installed a fibre based dedicated internet connection at the place where I work. In the beginning the connection terminated at one of the ISP's core routers. It resulted in a strange issue. ...
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4answers
2k views

How to set up daisy-chained routers for separate sub-nets?

This question seems to be similar to others, but I'll take a shot anyway. A client recently switched ISPs from TDS to Comcast Business Class. Before the switch, they had 5 static IP addresses ...
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3answers
337 views

why sendmail resolves to ISP domain?

I wish to setup a local mail server for debugging purposes using fedora 15 I set up sendmail, but there is a problem. When I'm not connected to the internet, the local mail server delivers correctly ...
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3answers
376 views

Hosting web server via FTTH (Fibre To The Home) or datacenter

I'm a .Net programmer that currently using web hosting provider to host my web applications. In my place, currently there is offer of 20 Mbps FTTH (Fibre To The Home) internet line by an ISP. This ...
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2answers
57 views

Question about domain name server

I have set up a DNS server in my home, will I have to wait for the isp to refresh there cache before DNS is active? Some website I have found says this is called "DNS propagation time" and how long ...
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3answers
179 views

How to tell if a router traffic shapes?

I have a client in a managed office, and part of that service is the provision of internet, with static IPs for all desktops provided by the building, (I know it's a recipe to have all your data ...
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4answers
175 views

Hardware Solution to connect to multiple ISPs for one WAN

I'm looking for a piece of hardware to connect to different types of ISPs, normal DSL, cable DSL and USB egde sturfstick to offer one Internet connection with a higher cumulated bandwidth. I'm pretty ...
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2answers
658 views

How do an ISP's DNS servers resolve a local hostname?

This might be a stupid easy question for some of you, but I couldn't find a fast, accurate answer online. I had a problem recently where I was trying to SSH to a local FreeBSD server, but the ...
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1answer
2k views

ISP Point of Presence versus ISP data center and what effect it has on CDN server deployment

I would like to clarify my understanding of the difference between an ISP Point of Presence and an ISP data center. Perhaps more importantly, I'm trying to understand at what kind of granularity each ...
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5answers
678 views

QoS configuration for a medium ISP

What is the best Linux-based QoS platform to implement a configuration where all 256Kbps DSL clients (all belong to the same IP range) get a guaranteed speed of 200Kbps with single QoS rule?
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2answers
828 views

ISP grade Proxy

We are a ISP in Africa (bandwidth is expensive, more than 800 USD per Mbit). Instead of investing in more bandwidth I believe it can be worthy to invest on web proxy appliance. I prefer to use mature ...
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3answers
311 views

ISP like Linux WAN router/gateway

My ISP has installed a fiber link at the place where I work. It has provided an ethernet WAN link to my office and has given a set of static ip's on 187.xxx.xxx.224/29 network. I need to setup a linux ...
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5answers
405 views

How do I notify everyone in a network that the Internet connection is down?

Our internet connection is awful. It goes up and down several times during the day without warning. Every time it does, we get a large number of calls saying the network is down. Replacing the ...
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4answers
91 views

Reasonable assumption about an ISP's IP range

I have made a visitor tracking script for my demo server. I want to add a rule so that my own page hits are not recorded. But the problem is, I don't have a static IP. I have a DSL connection with ...
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1answer
2k views

Disable (ISP) Caching - WAMP

I have a server that I use to send emails. The emails have an image, that is used to track their being opened, that is in the form of <img ...
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1answer
180 views

how does an isp provide public ip to the client [closed]

how does the isp provide public ip from where did they get the public ip registerd
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1answer
2k views

2 ISPs into ASA 5510 (base license) and separate traffic by protocol (port). Is it Possible?

I've been tasked with setting up our ASA to allow traffic from two ISPs. Currently, ISP1 is for mail, VPN, Remote Web Workplace (SBS 2003), and internet. My boss would like me to set up the DMZ ...
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4answers
113 views

Only able to use the first IP in a range from ISP

Right now I have a subnet of 16 IPs. I want all of the ips to be "owned " by my firewall. I have a watchguard firewall statically configured with X.X.X.225 and has X.X.X.226 - 238 as Secondary IPs. ...
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2answers
238 views

What ISP do hosting providers use?

I'm wondering how large internet businesses or hosting providers deal with ISPs. Thanks.
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3answers
459 views

Google DNS Geolocation Issue

I work on a ISP in Africa. Our customers were being redirected to Google cache in South Africa. Apparently with no reason, they start being redirected to Google US, which for us has higher latencies ...
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2answers
173 views

Is it possible to use 2 lines from 2 diffrerent ISP?

How can I (if it is possible) to set up the network gateway if I have 2 internet lines from 2 different ISPs? Furthermore, one of them is forwarding /28 static ip for (into) our network. Is there a ...
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3answers
148 views

Number of routers in small community lock up and require reboot

I live in a small town which has one primary ISP. Lately I have noticed that a number of wireless routers have been locking up and requiring a reboot before allowing any connections. This has affected ...
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2answers
244 views

Looking to get a small server – need web, PHP, PostgreSQL [closed]

I'm looking to get a cheap (low end) server to serve web pages (xHTML/PHP), but I also need to be able to set up PostGreSQL on the system too. Ideally the server would have low power consumption, run ...
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1answer
951 views

configure Reverse DNS for VPS with amazon route 53, ISP or Amazon Route 53 issue?

i have a VPS hosted with myhosting.com, the domain is hosted in godaddy and the DNS records are managed in AMAZON route 53. i was told by myhosting support that i should create a PTR record on my DNS ...
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4answers
278 views

What ISP Do Webhosts Use?

What ISPs do the servers used to host large scale websites or companies go with? Or are they somehow directly connected to the internet?
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1answer
443 views

How can I allow or deny a particular ISP network

Is there any way to get the network IP of a particular ISP so that I can allow/block the entire network behind that IP using iptables.
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1answer
235 views

What is the best way to auto failover to backup WAN link for web server

Iam looking for the best way to ensure my server ( application ) remains available for all my users (on web/LAN/WAN ), when my primary ISP link fails. My server is behind a firewall on which both my ...
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1answer
376 views

Windows Server 2003: Router, DHCP, Loses internet connection

I have following setup: a windows server 2003 dedicated server with tho nics. One is connected to internet (no modem/router), and second one is connected to private network. Server has DHCP server ...
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3answers
297 views

Own Server Without ISP [closed]

Is there any way I could host my own server but without my ISP? A few reasons why I want this are: No bandwidth limit Allowed to have unlimited traffic No complaints about the content of my site ...
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1answer
121 views

Does Network neutrality mean you can host a server? [closed]

Does the Network neutrality ruleing mean that you can lawfully host a server on ANY ISP without paying extra?
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5answers
585 views

Periodically measure speed of web server internet connection

I fear that our ISP suppling our web server's connection is not providing a good service. What software do people use to monitor the spped of a web server's internet connection? (or any internet ...
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1answer
351 views

Where does ISP obtain their IP address from in order to connect to internet?

To my little knowledge, my home computer can connect to internet because the ISP assigned a dynamic IP address to my router. Then through NAT, the router assign an dynamic IP address for my home ...
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4answers
772 views

Windows Updates mirror for ISPs

I work in a ISP where bandwidth is limited. We want to provide our customers a mirror for WINDOWS UPDATES, so we cant save bandwidth and provide to our customers a faster connection. How can we ...
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2answers
220 views

Web server send outgoing request to specific isp gateway

I have a server with 5 ISP connections, i am using Apache web server and php engine to run my application. Outgoing request to different API now needs to be send through a specific ISP (or a ...