0
votes
1answer
62 views

DNS Resolver for Windows over TCP

I know that DNS uses UDP with Port 53 for DNS queries. However, at my place sometimes UDP requests are blocked and DNS fails. I know that there is protocol for DNS over TCP and many public DNS servers ...
-1
votes
2answers
133 views

Is DNS query a UDP or TCP?

I know that when we first type an address on the URL and enter. The DNS query starts. I don't who initiates, but my guess is application will only initiate the DNS query. The DNS query already knows ...
1
vote
1answer
796 views

Network issues, resolving host

My network connection randomly drops for a 5 minutes or so when I'm online. It always happens when I boot up my computer. I can tell because it says:resolving host in Chrome and I can't ping any ...
0
votes
1answer
317 views

DNS: can't dig 8.8.8.8 directly

me@ubuntu:# dig @8.8.8.8 google.com ; <<>> DiG 9.9.2-P2 <<>> @8.8.8.8 google.com ; (1 server found) ;; global options: +cmd ;; connection timed out; no servers could be ...
0
votes
0answers
431 views

how can ftp to a hostname fail even though DNS provides the valide ip addr and ftp to the addr succeeds?

How is this possible? NodeX# ping ftp.company.com PING ftp.company.com (xx.yy.8.11) 56(84) bytes of data. 64 bytes from ftp.company.com (xx.yy.8.11): icmp_seq=1 ttl=127 time=0.657 ms ... ^C NodeX# ...
1
vote
1answer
422 views

Force DNS resolution to use TCP

My Comcast internet connection has been giving problems in DNS resolution, and I am guessing the reason is a probably broken or limited UDP. I am currently working around it by tunneling over TCP ...
1
vote
8answers
2k views

How to make Firefox use TCP for DNS

I want to use TCP for DNS, to bypass my ISP's slow and broken DNS servers. I'm not using (and don't want to use) a proxy. Note: I want to use DNS over TCP because if I use it over udp, no matter what ...
7
votes
2answers
9k views

How does circumventing IP restrictions through DNS work in the case of hulu.com?

I just heard from an australian guy that it is possible to watch hulu.com from Australia (which is actually restricted by country IP checks) by using certain DNS servers. Now I was wondering, how ...
3
votes
1answer
49 views

DNSSEC regarding

I'm asking this question as software (and also because there have been a few DNSSEC questions on here in the past). http://en.Wikipedia.org/wiki/DNS_cache_poisoning#Prevention_and_mitigation I ...
2
votes
1answer
139 views

SSL/TLS and VPN-SSL?

As I understand it, SSL/TLS is used when we visit a website using https. However, using this method only encrypts the data and not the IP address of the website we're requesting. If you use a VPN ...
1
vote
0answers
364 views

iodine fails its ping test

I'm trying to get iodine working on my Ubuntu machine. The server is working fine, but when it try to establish a connection, and change the route table using the default iodine-client-start script i ...
4
votes
3answers
3k views

How to use DNS over TCP?

Google DNS (8.8.8.8 and 8.8.4.4) are blocked (or polluted) by all ISPs available to me (and DNS by ISPs just return wrong answers for some sensitive sites!!), and it is said that if we change DNS from ...
3
votes
1answer
837 views

Can I use TCP as DNS query protocol on Mac OS?

I'm using Mac OS, Snow Leopard 10.6.2, and I'm suffering from UDP packet loss during DNS query. So my web browser is too slow to surf internet nicely. But it worked very well when I tried a DNS query ...
3
votes
1answer
5k views

Remotely push DNS server to client via OpenVPN

When I try to push a DNS server via the OpenVPN server-config I don't get that server to be the first DNS server on the connected client system. It ends up being specified as an alternative DNS ...