About of DNS LOOKUP
DNS Search Gateway
Handy web-based DNS lookup service, with links.
Domain Name System Basic Lookup Result type: View output log Try harder Result type: View output log Try harder DNS Information Resources Here are some web sites with Domain Name tools and information about the Domain Name System
Forward/Reverse DNS Lookup, Other Network Tools - Lookup Server
Provides basic forward and reverse DNS lookups, as well as MX record and server
software lookups.
Forward & Reverse DNS Lookup, Other Network Tools Look up a domain name's IP Look up a domain's MX records Look up an IP address's name Check domain's server software Forward DNS Lookup: Takes a domain name, like example.com, and returns an IP address, such as 192.0.34.166
Reverse DNS Lookup: Takes an IP address, like 192.0.34.166, and returns a domain name, such as example.com
MX Record Lookup: Takes a domain name, and returns the IP address responsible for that domain's email
Server Software Lookup: Takes a domain name or IP address, and returns a server software type, such as Apache
Lookup Server is sponsored by and supported by other
DNS Lookup
Supports simple DNS look-up and reverse look-up. By Sabra Inc. [Component, Free]
Friday, September 15, 2006 DNS Look-Up Component Component Overview: The DNS LookUp Component will do a simple DNS look-up and reverse look-up
DNS Lookup Tool
Provides reverse DNS lookup of IP addresses.
Benefits
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Internet Protocol Addressing and the Domain Name System Detailed tutorial covering IP address and CIDR allocation, name resolution, and
DNS. Includes examples,...
If you want to query your DNS server directly you can use the nslookup command (under NT and unix at least) D:>nslookup www.blighty.com Server: penfold Address: 192.168.1.1 Non-authoritative answer: Name: www.blighty.com Address: 151.196.75.10 There are a lot of more powerful tools for unix, including host and dig
There are freeware nslookup tools for Win95 too
Cyberkit by Luc Neijens is a nice ping / nslookup / traceroute / whois tool
So you just need to do an 'nslookup w.x.y.z', right? D:>nslookup 199.170.88.39 Server: penfold Address: 192.168.1.1 Name: www-01.io.com Address: 199.170.88.39 Sometimes yes..
D:>nslookup 151.196.75.10 Server: penfold Address: 192.168.1.1 *** penfold can't find 151.196.75.10: Non-existent domain Sometimes no..
[Note: Some nslookups don't accept reverse lookup on the command line
If you get caught with a braindead tool and need to do a reverse lookup you can do this: nslookup z.y.x.w.in-addr.arpa will do a reverse DNS lookup for address w.x.y.z
DNSTran
A utility to speed up the process of DNS lookups. Works well with Analog. Mac,
Linux, Sun, and Irix.
The Next Step in Information Technology DNSTran for Macintosh, Linux x86, and Sun Comments and questions: Jason@Summary.Net DNSTran is a free utility to speed up the process of DNS lookups and to translate IP addresses into domain names in log files
In one step you can lookup IP addresses in your server log file, replace them with the correct domain names, and compress the log file for long term archiving
When used with it can be 50 times faster, or more, than Analog alone at doing DNS lookups
is fast, really fast, until you turn on the NUMLOOKUP option
With NUMLOOKUP off, Analog takes less than a minute
Even if your log analyzer has better DNS lookup performance, DNSTran will replace the IP addresses right in the log file so you don't need to do the lookups every time you run the log analyzer
DNSTran expires failed lookups 18 weeks after the lookup attempt and successful lookups 9 weeks after their last use
There was a bug in 1.5 that caused unessessarily slow lookups under OS X
Added an option to slow down lookups in case your DNS server is getting overloaded
Updated DNSTran to use the ares library (Copyright 1998 by the Massachusetts Institute of Technology) to allow much faster lookups on high speed connections (up to 10 times faster in some cases)
AnalogX: DNSDig
DNSDig is a web version of dig. Allows you to query for a domain's DNS from any
machine on the internet....
Would you like to be informed of all the latest happenings at AnalogX automatically? Then join the DNS Server: Query: Type: AnalogX DNSDig is similar to the Unix DNS tools DIG and NSLookup, but with a bit more verbose output and obviously web based
Operation is simple, enter the name or IP address of the DNS server you wish to query, followed by the domain name you're interested in getting more info from, and finally what type of lookup you'd like to perform
ISP report card
[CNN]
December 1999's top ISPs ISP Score* Strengths AT&T WorldNet 18 Low CFR %** (all three categories), initial modem connect speed, average time to log on, low Web fail/timeout % BellSouth 17 Low CFR % (evening), initial modem connect speed, average DNS lookup time, average Web throughput, average download time Bell Atlantic - North 15 Initial modem connect speed, average DNS lookup time, low Web fail/timeout % UUNET (GridNet) 15 Initial modem connect speed, average time to log on, average DNS lookup time MindSpring 14 Initial modem connect speed, average time to log on Ameritech 13 Average time to log on AT&T GNS 13 Initial modem connect speed Concentric 13 Average download time EarthLink 13 Low Web fail/timeout % *(12 = average) **(CFR = call failure rate) Month-to-month comparison ISP Aug
DNS LOOKUP ?
easyWhois: Lookup Domain Whois Records and Research DNS Information
Lookup domains across all registrars and most country codes.
For a concise 1-page explanation as told by a domain industry insider, Lookup a domain name's Whois Record Enter any generic top-level domain (gTLD) or country code domain (ccTLD) Enter domain: Resources © 2006 easyDNS Technologies Inc
SoftwareModules.com - IntraDNS: (ASP/VBScript/Visual Basic DNS ...
Can resolve host name, IP lookup, MX lookup and reverse IP lookup. [Component,
Commercial]
| Products - - - IntraDNS IntraDNS is a server-side component that can be used to perform various DNS lookup operations including Mail Exchange Lookup (MX lookup), reverse IP resolution, Host Name to IP lookup, Name Servers for domain and Canonical Name Record lookup
Features: - Address Record(s) (A) Lookup - Canonical Name Record (CNAME) Lookup - Mail Exchange Record(s) (MX) Lookup - Name Servers Record(s) (NS) Lookup - Pointer Record - 'Reverse IP Lookup' (PTR) - DNS Connection Timeout - DNS Query Timeout
Visual Route, Virginia, USA
AS2914.
Creating a Virtual Server with Java Sockets
Beneath the surface of Java lies a rich trove of client/server functionality.
Learn about both sockets...
Figure 3: IIS Directory Properties When a user tries to connect via the Web to a virtual host like www.science.org, the browser performs a DNS lookup for the host name
The DNS lookup returns the IP address, which in this case is 207.92.75.26, and the browser attempts to connect using the IP address
And in fact, most do, especially when the server needs to make use of a network service like DNS for host name or IP address lookup
ADNS
A DNS resolver library for C and C++ programs, and a collection of useful DNS
resolver utilities....
adnshost is a general-purpose DNS lookup utility which can be used easily in from the command line and from shell scripts to do simple lookups
EmailArchitect Component & Server
Email Server and SMTP, POP3 Components. [Shareware]
EASendMail SMTP COMPONENT 1.0 (Pure .NET) Platform: Windows 2000 or later (Windows x64 version is supported as well) Date: March 2006 Asynchronouse mode Html Email & Attachments Attachment from Http & Memory Alternative Text Embedded Picture ESMTP Authentication Secure Password Authentication MX Dns Lookup & Smart Host Email Address Verification Multiple Threading & Queue SSL/TLS Digital Signature Email Encryption IPv6 & x64 Support EASendMail SMTP component allows developers to deliver required reliability and functionality email applications in C#, VB.NET, JScript.NET, ASP.NET or other .NET framework more easily
Many advanced features are supported including DNS MX record lookup to send email without specified SMTP server
Asynchronouse mode Html Email & Attachments Attachment from Http & Memory Alternative Text Embedded Picture ESMTP Authentication Secure Password Authentication MX Dns Lookup & Smart Host Email Address Verification Multiple Threading & Queue SSL/TLS Secure Email(S/MIME) Digital Signature Email Encryption IIS SMTP SERVICE Integration Mail queuing with EASendMail Service IPv6 & x64 Support ANPOP POP3 COMPONENT New 6.5 Windows 95/98/2000/Me/XP/NT/2003 Date: Aug 7, 2006 Retrieve email from POP3 & IMAP4 mail server and parse email from ASP, VB, VBA, VC++, C#, VB.NET, JScript, ASP.NET or other COM environment applications
Cerebrus Email Guardian
A spam filter written with the Rebol/SDK that works as a pop proxy, and also
includes web mail...
Here’s an example of a forged header: Return-Path: <taramb918.n@hotmail.com>Received: from 203.79.82.38 (account spamtrap@pop.netlink.co.nz)by compkarori.co.nz (CommuniGate Pro RPOP 3.5.9)with RPOP id 529987 for spamtrap@compkarori.co.nz; Sun, 27 Oct 2002 11:03:53 +1300Received: from hotmail.com ([217.141.233.66]) by netlink.co.nz (8.9.3/8.9.3) with SMTP id KAA19911 for <spamtrap@compkarori.co.nz>; Sun, 27 Oct 2002 10:53:45 +1300 (NZDT)From: taramb918.n@hotmail.com This spammer is pretending to be originating from hotmail.com but a DNS lookup of 217.141.233.66 shows that it is actually host66-233.pool217141.interbusiness.it
Cerebrus does a reverse DNS lookup on hotmail.com and confirms that it is not 217.141.233.66
reserved-ipaddresses Cerebrus does a lookup on Spamcop to see if a particular IP address is listed as a spam source
Alternatively we will soon provide a tool that can do the lookup for you
Each time it has to do a lookup on SpamCop, and finds a positive, it adds to this list so that it does not have to do another lookup on Spamcop
Spamcop is now a DNS lookup rather than http
UCA Victoria and Tasmania - Information Technology Services
The Information Technology Services unit of the Synod of Victoria and Tasmania.
USEFUL INFORMATION are widely available online problems Domain & MX lookup sites DNS Lookup MX Lookup WhoIs Lookup INDEX OF SERVICES PROVIDED NEW for Data Projectors (more equipment coming soon) discounted for the Uniting Church : DSL or dial-up Internet access for Uniting Church folks around Australia for computer hardware and software is widely available on the Internet
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