A domain name is an identification string that defines a realm of administrative autonomy, authority, or control on the Internet. Domain names are formed by the rules and procedures of the Domain Name System (DNS). Technically, any name registered in the DNS is a domain name.

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2
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1answer
43 views

Which information does a whois lookup reveal about the registrant of the domain?

A friend of mine recently got her Gmail account "hacked" because of a weak password (the same as her login..). While sanitizing her account, I removed the forwarding of her emails to one email ...
1
vote
2answers
25 views

Is it reasonable to keep control panel in separate subdomain or domain?

Since I'm quite beginner to information and websites security, I'd like to ask more experienced people about and idea, that just crossed my mind (probably isn't my original discovery! :]). With ...
12
votes
2answers
411 views

How can I prevent that my users get a certificate issued for my domain on my behalf?

I have a domain, where some other users have access to upload files, use email, use XMPP, etc. How can I prevent that these users go to a certificate authority and get a certificate for my domain? ...
2
votes
2answers
72 views

How to find out the email host of a vanity email address?

Assuming a person gets his own domain address, say, theperson.com. He then goes on to create a vanity email address with that domain. e.g. me@theperson.com. me@theperson.com may be hosted by the ...
1
vote
2answers
60 views

Mechanisms to offer inexpensive https to all second level .wiki domains

I'm working with the registry for .wiki, a new generic top level domain set for public availability in June 2014. We're going to be giving away hosted wikis to registrants of .wiki domains and I'd ...
0
votes
2answers
80 views

Subdomain-only SSL security/availability

CAcert and StartSSL both only validate domains whose TLD is owned by the requester. I have a few subdomains that come from places like freeDNS that I would like to run an SSL-secured server on. Are ...
0
votes
3answers
356 views

Can my customer's ISP trace who visited my business website?

I own a private business and a web site with a domain name hosted with Godaddy US. I live in Europe. I want to know if the various ISP of my customers in my country can find out who visited my web ...
2
votes
2answers
38 views

DNS Domain Issue [closed]

we are maintaining our DNS account to GODaddy DNS Provider for our servers, Right now we have an problem, If some one have to register domain or sub-domain from any of other dns provider or godaddy ...
1
vote
1answer
102 views

SSL on domain will affect un-secured sub-domain

I have a plan to buy a SSL certificate for my domain. I don't have much budget so I decided to buy standard SSL with no support for sub-domains. I have a WCF web-service that works on sub-domain. This ...
1
vote
1answer
68 views

DNS Redelegation - Security Risk?

I am a web developer and I use Adobe Business Catalyst. To use some of their services it is recommended you redelegate the domain. In other words change the nameservers to Business Catalyst. I have ...
1
vote
2answers
93 views

SSL-certificates for overlapping domain regions?

Suppose, a server hosts https://www.master.com/ and thus is equipped with a (single domain) SSL certificate. Furthermore, suppose there are some web apps below master.com: ...
1
vote
1answer
2k views

A “new domain registration” spam?

About 6 days ago I purchased a new domain under .org TLD from a local registrar. Few days later, I have received this strange message (which BTW fell to Gmail spam bin), which looks like some kind of ...
-3
votes
2answers
1k views

Why is secureserver.net (GoDaddy) showing up blacklisted from my domain blacklist checker thingy? [closed]

I have my business website through GoDaddy and there has been some weird stuff happening within my business over the past year costing me a lot of money and all of my free time trying to figure out ...
1
vote
3answers
110 views

Are different top level domains somehow different security wise?

If so why is the difference? I've tried to google it but nothing relevant was found.
9
votes
4answers
331 views

How to stop/detect someone else registering a certificate for my domain

With the proliferation of low-cost automated CAs what can be done to mitigate the attack of someone doing a spear phishing attack to get a login to our webmail system, then using an automated service ...
-1
votes
1answer
268 views

Routable Domain for DC?

What is the impact of having a routable domain name in windows network infrastucture ? Having example.com in place of exemple.local as domain name have an critical impact ? if yes what should I keep ...
14
votes
6answers
2k views

Is showing your IP address in the URL a bad practice?

Someone told me that showing your IP address in a URL (like hxxp://45.67.134.34/default.html) is easier to hack. Is that true? I could trace any domain name and get its IP number as well.
32
votes
4answers
3k views

Is publishing your public IP address a security threat?

I work for a large-ish company (thousands of employees across multiple locations). I recently needed to know what the possible public IP addresses are, so that a vendor could identify us (presumably ...
7
votes
3answers
5k views

How can I find subdomains of a site?

One of the things I need to do from time to time is to find subdomains of a site for example. Starting with example.com sub1.example.com other.example.com another.example.com I'm ...
3
votes
2answers
343 views

How can I protect my domain names without exposing too much personal information?

I guess more specifically I want to know how to ensure I retain ownership by having sufficient contact information in the Administrative, Technical and Billing contact fields, but without exposing too ...
21
votes
3answers
789 views

What are some risks of purchasing a “used” domain name

If you purchase an existing domain name that was already used by someone else what are the ways in which the domain could have been broken by the previous owner? Are such problems common and are there ...
4
votes
3answers
531 views

How do you verify a certificate belongs to a domain?

I'm using PHP and trying to verify a SSL certificate belongs to the SMTP domain/IP I'm connecting to. Currently I can verify the certificate is valid using the following code $resource = fsockopen( ...
12
votes
3answers
206 views

Domain name expiration and TLS

If I purchase a domain name that has expired, do I have any assurance that the previous owner does not have a valid HTTPS certificate for the site? In other words, do CAs check domain name expiration ...
8
votes
1answer
290 views

Why can the validity of an SSL certificate exceed the registration period of a domain?

I can understand why one might desire to purchase a certificate for multiple years but I am left wondering why it appears to be possible to obtain a valid certificate for a domain that may have come ...
19
votes
3answers
8k views

How do hacking groups register domains remaining anonymous?

Let's take lulzsec as an example; they registered lulzsecurity.com. There are two problems that I don't understand how they solved: They had to pay for it. Tracking down money is generally much ...
2
votes
2answers
105 views

Domain and IP scoring

What kind of things would you check in a domain and IP scoring system? Which things are the most important? If I have a web site or web service, I would like to figure out a score for my visitor. If ...
3
votes
2answers
612 views

Keeping Whois domain registration details private

Most domain registers offer a service to keep your details private in the Whois database. Usually this works by replacing your email, telephone and snailmail addresses with proxies or P.O. Box ...
3
votes
1answer
174 views

How to protect against exploitation of email addresses from an mistakenly expired domain?

I have a domain name that I have registered for a long time. Due to a combination of bad luck and oversight, the domain name expired and was rebought by somebody else. I am attempting to buy the ...
7
votes
3answers
2k views

If someone bought the .local TLD could that be a security risk?

Now that the ICANN is allowing custom Top Level Domain names and often corporate IT workers like to use .local as the TLD for internal networks, if someone does buy the .local TLD what are some ...
7
votes
1answer
181 views

Does dnssec protect against malicious registrars?

With the recent conspiracy theories around the registrar MarkMonitor Inc., the question arises, if DNSSEC protects against a registrar going malicious (or being attacked). This is especially ...
6
votes
2answers
5k views

Malicious users trying to create yahoo accounts with random emails at my domain?

Recently, I have been getting a string of emails from yahoo with people trying to create accounts or add email addresses @mydomain.tld to their account. I was wondering if anyone else has seen this ...
10
votes
2answers
255 views

How to protect against exploitation using a lapsed domain

Consider a domain that had been in active use for some time but is no longer desired — perhaps the company is out of business or a name change took place years ago, or whatever. The domain ...
-1
votes
1answer
333 views

How does DNS work?

I'm learning pentesting from books. So far I thought I know about DNS but now I'm completely lost and confused. well, I know what happens when you enter domain name in your browser: Say, I've ...
1
vote
1answer
207 views

Can we protect domain name by law? [closed]

Some company have domain names worth a million dollar. But sometime they are lost to hackers. So I wonder how can we protect domains by law instead of technology?