The Domain Name System (DNS) translates Internet domain and host names to IP addresses.

learn more… | top users | synonyms

5
votes
1answer
139 views

Is there an HSTS equivalent for DNSSec?

Is there any way to set a DNSSec-always policy similar to how HSTS commands Web Browsers to always use HTTPS? This would mitigate a DNSSec-strip attack (similar to SSLStrip) I'm also unclear if this ...
3
votes
1answer
52 views

Opt into strict DNSSEC checking - does DNSSEC provide a way for a zone to request strict signature validation?

Is there a way for a domain good.com to promise that it will sign all of its DNS records, and that any unsigned records for any host *.good.com should be rejected? In other words, is there a way for ...
1
vote
1answer
120 views

Standard for securing web server to client connections via HTTPS on the local area network

I am trying to set up some kind of secure client to web server connection that takes place entirely on local area networks, but I'm having trouble understanding what the recommended best practice is. ...
0
votes
1answer
24 views

how to debug for DNS changing Maleware on (linux/android)?

So by opening an application/browser on my Android device, I found that it pops open a set of ads. I channeled a proxy through my laptop trying to track the first web site it connects to. Later I ...
0
votes
1answer
127 views

DNS in DMZ or not and mail server architecture

I'm a new user in security.stackexchange.com, I'm a French junior admin sys, I enjoyed to come here! Spend the presentation. I wonder what server I put in DMZ zone, I know the DMZ zone is for all ...
3
votes
0answers
119 views

Unknown ports shown on Nmap scan…and other strange behavior

My local network has been exhibiting some inexplicable behaviour. Firstly connecting to my websites domain name from inside the lan redirected me to my router's login page. I checked again with 3g ...
3
votes
0answers
123 views

Why would home routers accept incoming DNS traffic?

I stumbled upon an interesting paper (PDF Link) where researchers found out that more than 58% of the DNS open resolvers that are blamed in DDoS attacks are in fact home routers distributed by ISPs to ...
2
votes
0answers
795 views

Can SSH tunneling over DNS tunnel work in China to use free WiFi at airport?

I have followed a tutorial here: http://ebnj.net/sshoverdns/ This tutorial tells us how to carry all internet traffic via DNS tunnel if your airport enables no-limit outgoing DNS. This guides us to ...
2
votes
0answers
57 views

bind9 resolves all queries to one address - a compromised server?

Since this morning we tried to open some SSL sites and were greeted by browser warnings, that certificate is not for this site. Upon checking the certificate, we determined that it is issued to *....
2
votes
0answers
211 views

DNS Server Recursive Query Cache Poisoning Weakness “Bounce DoS”

Tenable Nessus states that if there is a DNS Server Recursive Query Cache Poisoning Weakness the host allows recursive queries via UDP, then the host can be used to 'bounce' Denial of Service attacks ...
1
vote
0answers
200 views

'google.com' DNS resolved to addresses of ISP

When I open cmd.exe and do nslookup on google.com I am getting a set of addresses that belong to my ISP. More than that, even when I try to run server 8.8.8.8 or server 8.8.4.4 and query for google....
1
vote
0answers
83 views

RHS Blocklist, Other blocklists and impacts of RHS blocking on similar domains

I am not very familiar with Blocklists so had a few queries around it. I have a sub-domain example.com which is used to send mass marketing emails i.e. emails are sent from no-reply@example.com. A ...
0
votes
0answers
13 views

DNSSEC implementation questions (BIND 9.10)

I am planning to sign multiple DNS zones with BIND and have the following questions which I could not answer by reading the latest BIND 9.10 Reference Manual. How can I use the same ZSK with ...
0
votes
0answers
14 views

DNSSEC ZSK compromisation (man-in-the-middle attack)

Assuming I am administering a DNS zone and I operate an authoritative name server that is secured with DNSSEC (split ZSK/KSK setup). When the Zone-Signing-Key (ZSK) ever gets compromised, would it be ...
0
votes
0answers
29 views

Detecting Spamming activities of Botnets

Remarks Hello Everyone,thanks for being a nice platform for expressing Everyone's Doubts/Views. Problem Statement I want to detect spamming activity of botnets Background Information about ...
0
votes
0answers
59 views

Do these DNS requests seem like Conficker/Torpig-like behaviour?

I'm at my wit's end on this one... I have been seeing weird traffic from an IP on a client's local network and I think the host is malicious. Looking at the traffic it is producing, is always ...
0
votes
0answers
34 views

How to update a non clientUpdateProhibited domain name?

So I recently learned about domain name locking after having found the *.co domains of a top web site weren’t protected against server and client updating/transfering. (while the .co tld offers all ...
0
votes
0answers
95 views

Script to emulate DNS for Windows machine in honeyd

I want to simulate virtual Windows hosts using honeyd. To do so I have installed honeyd. I have configured honeyd as Windows XP SP1, and now I want to emulate DNS services on it. I used UDPot as a DNS ...
0
votes
0answers
45 views

Behaviour of DNS query packet

When the configured name server resolver is not reachable, the query packet will retransmitted after certain t times (in windows, every 1 seconds until 8 seconds,max). The behaviour of the legitimate ...
0
votes
0answers
71 views

Silent security on android

I saw a DEFCON talk about owning back a stolen PC/Mac, with a SSHd daemon and a dynamic-ip service installed,running in background. I was wondering if is it possible to achieve tha same results on an ...