0
votes
2answers
52 views

CNAME to shared IP on a cluster

I'm trying to set a CNAME record (www) at ISP-A to forward to a subdomain at ISP-B. the domain/website at ISP-A works flawlessly at ISP-A, the website at the subdomain at ISP-B works also good. but ...
-2
votes
1answer
571 views

Should I use my ISP DNS or Google's? [closed]

I'm experiencing an annoying problem. Randomly, some websites don't load for about 30 seconds. I'm reading the news and suddenly I start getting a server not found error. At the same time other ...
0
votes
3answers
514 views

Can ISP DNS servers go down?

I'm having problems with my ISP's DNS server. I'm able to do everything except visit any website using my browser through the website's domain name. I was with the technical support for 30 minutes ...
0
votes
3answers
64 views

Router unable to connect to internet

Background : My ISP has a web based authentication scheme . So when I first try to browse any site , it goes to the isp login page. Once logged in , further requests to web pages work fine . ISP has ...
1
vote
1answer
95 views

Why don't the ISP DNS-Servers sync with the Root-Servers?

Basics first: If I'm trying to access www.superuser.com my Computer first tries to resolve the FQDN to an IP address. If that address isn't in its host file or cache it asks the configured DNS-Server ...
0
votes
3answers
104 views

If I don't use my ISP's DNS, what am I paying for?

I'm using google's DNS servers (4.4.8.8 and 8.8.8.8). As far as I know (which is very little) all an ISP does is be a DNS server. What am I paying for?
0
votes
0answers
75 views

VPN failure after ISP switch

We are a small library and are trying to switch our ISP, but after the switch we have VPN and SIP failures. We have a DSL modem set up in bridge mode, we have a Juniper firewall, and Windows Server ...
0
votes
1answer
104 views

Incoming server mail (MDA) behind ISP => different reverse DNS: How bad?

I would like to operate an incoming-only MDA (Mail Delivery Agent) server mail for domain xyz.com on an Ubuntu server hosted behind my ISP (Internet service provider) Comcast. The objective is to ...
4
votes
3answers
443 views

ISP tricks DNS?

Running "nslookup google.com 8.8.8.8" yields IPs of my ISP (as Non-authoritative answer). I think this started occurring recently. Probably they are making some bullshit cache or something, as nearest ...
3
votes
2answers
1k views

Port 53 seems to be blocked by ISP - is there a way to override this?

My ISP seems to be blocking Port 53 if it is not connecting to one of its DNS servers. I was able to prove this through nslookup tests. Here are my tests: C:\Users\admin>nslookup google.com ...
0
votes
1answer
70 views

Dynamic DNS checking site?

Basically, I use to have a site bookmarked that would create a unique subdomain and forward you there, then, when you do a DNS lookup on that subdomain it would mark the DNS IP down and give it to you ...
9
votes
6answers
2k views

Is it possible to find out which upstream DNS server my router is querying? (just using dns tools)

Ok, here is the setup: I have a local router which advertises itself as the DNS server over DHCP. The DNS resolver on the router just forwards the requests to the ISP nameservers and caches the reply. ...
1
vote
1answer
131 views

Worse case scenario when switching a DNS entry with a TTL of 1 day

Say I have a DNS entry with a Time to Live set to 1 day or 86400 seconds, and I update it's destination IP, I wonder how long it would take in a worse case scenario for an end user until his he gets ...
1
vote
1answer
1k views

nameserver spoiling avahi multicast name resolution of .local domain

After trying to ping a machine on my local network, I noticed that I was trying hit address 66.152.109.24. This is an external public address. Resolution should have occurred via avahi mDNS. I ran ...
2
votes
3answers
7k views

How do I determine the IP address of my ISP's nameservers? (/etc/resolv.conf only shows the default gateway)

My home server is connected to the router. This is the output of the /etc/resolv.conf file nameserver 192.168.1.1 How do I determine the IP address of my ISP's nameservers?
2
votes
1answer
1k views

I'm using an external dns , can my ISP detect that?

I tend to use google public dns , i don't like my ISP dns because it took too much time to refresh today i have got a page from them saying that you should change the dns to thier dns because they ...
1
vote
6answers
1k views

How is my ISP DNS hijacking AFTER all these precautions?

In IE9 when I search for anything my ISP hijacks google search and I get this result. To add complication to this I've already changed the default DNS servers (OpenDNS) months ago. This only happens ...
5
votes
3answers
399 views

How to disable Comcast mistyped address page?

I upgraded my Firefox to v7 (I am on Ubuntu if this matters). Before, I could type in the address bar "ebay" or "gmail" for example, and it would take me to those sites. After I upgraded, it redirects ...
0
votes
2answers
786 views

Host File Redirect?

How can I edit my host files to redirect to a html file saved locally when a request is made to a specific IP? I have a Linux Mint box (pretty much an ubuntu distro). Road runner has an annoying DNS ...
0
votes
2answers
1k views

How can I tell if my ISP is redirecting my DNS queries?

I've attempted to use some DNS services like OpenDNS, and no matter what I do the DNS queries don't return the expected results. Watching the packet traffic on my firewall, I can see the queries go ...
0
votes
2answers
388 views

setting dns server

I am trying to understand this: When I set up my internet connection, I have to enter my ISP's IP address and possibly a DNS server address. In both those options I can enter either an actual IP ...
1
vote
3answers
310 views

Can not resolve domain name of few sites in new country

I used to visit a few sites in different country. But now i have travelled to my home country and saw that domain name is not resolving. However if I use IP address then I can see the website. How ...
2
votes
1answer
162 views

Weird DNS Issue on XP

I've been having a strange, intermittent issue that I think is tied to DNS. It's hard to describe exactly, so I'm just going to list what's happened. I first noticed it with Facebook a few months ...