dns

Do CNAME DNS entries affect SEO?

I am setting up a website for a client which I will be hosting and maintaining, and I am trying to determine what will be the most pain free setup. My thought is to do the following: 1) Set up the clients domain at client.mydomain.com 2) Have the client update their dns records for *.client.com to CNAME client.mydomain.com From a prac...

How browser retrieve web page

I have little question about how web browser retrieve webpage? I know this User request www.example.com --> web browser resolve DNS of www.example.com using DNS Server --> It got something like 156.23.15.12 --> then web browser request 156.23.15.12 --> It retrive all document and render web page and display it to user. ...

DNS ec2 confusion

Hi people! Sorry for my confusion - I have tried looking for tutorials explaining these concepts, but haven't found anything that made sense. I am moving my hosting from mediatemple to ec2 and I understand the general idea of how DNS works, but I'm confused as to how the internals of nameservers / zone files work and what they do. How ...

Domain routing to directory, .htaccess or DNS-magic?

I have three domains of the same name with tlds: .com, .de and .ru. Can I route the visitor depended on tld he had choosen? As example: test.com routes to /english/ directory, test.de to /german/ directory, test.ru to /russian/ one. I have full access to the server. ...

Rebol MSAccess ODBC: works with DNS connection but not with DNSLess Connection

I have tested the new free Rebol ODBC with MS Access after reading the doc here http://www.rebol.com/docs/database.html It works with ODBC DNS connection but when I tested with this DNSLess connection (MSAccess2003 file with MSAccess2007 installed): connect-name: open [ scheme: 'odbc target: join "{DRIVER=Microsoft Access Driv...

Pyro, Python dns name resolution across subnets

The task is to access/connect-to Pyro objects on computer A (Pyro's name servers are broadcasting both tcp and udp packets on port 9090), from computer B which is across the internets. I made a set of tunnels connecting A & B with autossh on 7766 & 9090 (the ports Pyro uses out of the box) which didn't seem to do the trick. My next thoug...

PHP: ARP?? Replying to an ARP Request

I know this may be an impossible question, since we are dealing with two different layers of the network, but is it possible to send a reply to an ARP request using PHP sockets? If so how....such as What port and ip address would you connect the socket to? Again, I understand that arp doesn't use a port number...at least not that I can...

Simple way to do SURBL lookup from Java?

I am reading about SURBLs (known spam hosts), for purpose of classifying spam, as a batch process. Main access method seems to be via DNS lookups. I was wondering what's the usual way to do such lookups from Java code. Since this is a batch process with no strict performance requirements, I think most important feature would just be simp...

Wildcard DNS with URI Request

So here is my problem. I want to redirect name.domain.com/trips/1 to domain.com?username=name&trip=1 using modrewrite. Is this possible? I have the dns set up correctly however - I am unsure about the htaccess file. Can I link all this information to one PHP or do I need to create a directory for every user? Thanks for your help. ...

php cli server domain

Hi, I'm running a CLI PHP script. I'm requesting data from a server that only lets me in if my domain is www.mydomain.com. It runs fine when I run through Apache, but when I run through CLI I presume my domain has now changed to the server IP, i.e. 84.123.123.123 The external server obviously rejects me now. How can I request as if I...

How can I keep a WPF Image from blocking if the ImageSource references an unreachable Url?

I'm writing a WPF application and trying to bind an image to my view model with the following XAML: <Image Source="{Binding Author.IconUrl, IsAsync=True}" /> The problem is that the image URLs are defined by users and can often refer to images hosted on intranet web servers. When the WPF application is run remotely, it locks up while...

php checkdnsrr java equivalent

is there a java version of the php function checkdnsrr? ...

NAPTR support for SLES

Do you know if there is a library in SLES9 or SLES10 which support NAPTR queries for ENUM functionality? The libadns doesn't support NAPTR. There are other libraries which support NAPTR queries but they aren't included in SLES. ...

Avahi DNS Stack for iPhone?

Hello, I would like to know if we have an avahi api for iphone side? Alternatively, can we implement avahi protocol in iphone? The avahi API provides: avahi-core: an API for embedding a complete mDNS/DNS-SD stack into your software. This is intended for developers of embedded appliances only. We dissuade from using this ...

Programmatic DNS

I'm a long time developer but not very experienced with DNS. Here's my problem: Our app launches servers on Amazon EC2 for clients. One client wants to use custom DNS's for every server launched instead of the normal long public DNS provided by AWS: for example server-5.demo.ourclient.com, server-6.demo.ourclient.com. What's the easi...

CNAME Record in .htaccess file: correct format?

In my .htaccess file, I have set up several A records in the following structure: RewriteCond %{HTTP_HOST} ^domain.com$ [OR] RewriteCond %{HTTP_HOST} ^www.domain.com$ RewriteRule ^substring\/substring\/etc?$ "http\:\/\/domain\.com\/newsubstring\/etc\/" [R=301,L] Is is possible to easily set up a CNAME record in the same fashion and p...

CDNs and domains

Hi all! A lot of big websites (facebook etc) are settings up CDN's for their content. Now I notice, that these CDN's are not always on the original domain. Example: Facebook pictures are on "photos-a.ak.fbcdn.net" Why is that? Is there a performance-gain in not having lots of subdomains on the "primary" domain (facebook.com) ...

Recommendations for domain name registrar with API-support

I'm building a web application that needs to register domain names programmatically. What domain name registrars with API support fulfill the following requirements: Supports .COM Ideally cheap Reliable, trustworthy and should been so over an extended period of time What API-supporting domain name registrars have you used? What are ...

Determine IP# of domain from client browser

Greetings all, I would very much like to determine the IP# of a domain from client script. It's for use in a testing application to determine whether or not a certain domain is set to a QA address as opposed to the address live on the . The testing machine will have it's host file set to resolve a domain to the QA address. Pinging fr...

URL redirect/remapping to a Django app, using DNS or Apache

Typically I've been lucky enough to have a fairly simple Django and Apache configuration. But now I'm writing several apps that will sit on the same server and I need them to each have individual domains. The apps live at www.myserver.com/app/app1 (app2...) and I would like to access it using www.someawesomedomain.com. I don't want a...