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Fri, Jul 01, 2016 10:39 pm

2o7.net

While checking a firewall's logs, I noticed a "TCP FIN SCAN" entry for 66.235.139.18. The log entry showed the local host accessing port 80 on the remote host at that IP address. Out of curiosity, I performed an nslookup on the IP address. The PTR record for the IP address points to the 2o7.net domain name.
C:\>nslookup
Default Server:
Address:  192.168.0.1

> 66.235.139.18
Server:
Address:  192.168.0.1

Name:    *.112.2o7.net
Address:  66.235.139.18

>

When I put http://2o7.net in the address bar of a browser, I was taken to a Adobe Marketing Cloud privacy web page, which states:

The Adobe Marketing Cloud solutions enable our business customers to personalize and improve the performance of their websites, apps, and social networking pages. These companies use Adobe Marketing Cloud solutions to collect and analyze information, such as clicks made by visitors on their websites, apps, and social networking pages. The solutions also allow the companies to provide you with more relevant messages within their emails, text messages, and other online and offline marketing campaigns. In general, companies use Adobe Marketing Cloud solutions when they want to better understand and improve their online resources and marketing.

[ More Info ]

[/network/Internet/domains] permanent link

Sun, Oct 06, 2013 1:29 pm

Check a Domain's Reputation

There are a number of companies that provide a means of checking a domain's reputation. E.g., perhaps you may wish to determine if a particular domain name is associated with the transmission of spam or want to know whether it is safe to visit a particular website. Often antispam and antivirus vendors will allow you to lookup an IP address or fully qualified domain name (FQDN) , e.g. somesite.example.com to make that determination through a website they provide.

[ More Info ]

[/network/Internet/domains] permanent link

Tue, Sep 16, 2008 11:45 am

Did Al Gore Say He Invented The Internet?

The answer is "no". He did make a statement in an interview with Wolf Blitzer of CNN about his role in the creation of the Internet, but that statement was taken out of context to be used as a political attack tool. I've heard Al Gore mocked many times for his supposed statement and found someone else making what appeared to be a sarcastic comment in a post today to an article "The Web back in 1996-1997"

As I posted there, I would like to point out that he never claimed to have invented the Internet (see the Snopes article "Internet of Lies"). For a much fuller discussion of the topic and some history on the Internet’s development and Gore’s role in supporting advanced networking initiatives, I would recommend “ Al Gore and the Creation of the Internet

His early vision of its potential and his support for funding of advanced networking activities was important. Vint Cerf, who has, I think appropriately, been dubbed the “father of the Internet” for his technical contributions, along with Bob Kahn, in designing the Internet Protocol, has credited Gore’s early support for advanced networking efforts (see "Vint Cerf responded to MSNBC").

I see the same tactic of taking an opponent’s statements out of context being widely used in the current campaign by both parties. Unfortunately, I suspect many Americans will make up their minds based on what they see in political ads that are designed to mislead them. The tactic used so successfully against Gore still works.

[/network/Internet] permanent link

Sun, Aug 10, 2008 5:13 pm

Bandwidth Testing for Verizon's BroadbandAccess Service - USB720

I've posted the results I obtained during testing this weekend of Verizon's BroadbandAccess service using a Verizon-provided USB720 modem at Bandwidth Testing for Verizon's BroadbandAccess Service - USB720

[/network/Internet/ISP] permanent link

Sun, Feb 17, 2008 5:41 pm

IP and Domain Name Reputation Sites

An IP address may be added to a DNS Blacklist (DNSBL), if spam is detected as emanating from that IP address. You can check for the presence of an IP address on various blacklists using the MxToolBox Email Blacklist Check, which currently checks 124 blacklists, or at individual blacklist sites, such as MAPS.

You can check on whether an IP address has been associated with attacks on other systems at DShield or myNetWatchman by performing an IP lookup.

You can also obtain information on the "reputation" for a site at Barracuda Central by performing a lookup on either an IP address or a domain name. Barracuda Networks sells widely used spam firewall devices, so a poor reputation listing at Barracuda Central may lead to email from an IP address listed there, or with a domain name in the body of email messages being found there, being blocked by those using Barracuda Networks security devices.

Another reputation site is TrustedSource. You can lookup an IP address there and see a graph of activity associated with that site. If you see red bars on the graph, those represent malicious activity associated with the IP address on the days for which those bars appear.

[/network/Internet/domains] permanent link

Sun, Feb 17, 2008 4:46 pm

Locating Cybersquatters Capitalizing on a Variant of Your Domain

Cybersquatters may buy domains similar to yours hoping to take advantage of someone mistyping your domain name or to mislead someone into thinking a domain name in a URL belongs to a legitimate company or organization. For instance many people might visit microsoft.com, so a cybersquatter might buy micrsoft.com, which has a missing "o", so that someone making a typo that left out that "o" would be directed to the cybersquatter's site instead, where the cybersquatter may have nothing but ads, hoping to get money generated from those viewing those ads. If millions of people visit microsoft.com every week, the cybersquatter will probably get a signifiant amount of traffic from such a typo.

Or perhaps you own example.com. The cybersquatter may purchase example.net, if it is available. Someone seeing example.net in an email may think the domain belongs to your company and visit a site that might have nothing but ads, perhaps even risque ones, or the site might try to infect visitors with adware/spyware, which might harm your company's reputation, even though you don't own the domain name and have no control over the site.

CitizenHawk helps you locate potential cybersquatter sites for your domain name.

[/network/Internet/domains] permanent link

Tue, Jan 08, 2008 9:50 am

Internet Usage Statistics

If you want to see statistics on Internet usage for various parts of the world, check Internet Usage World Status - Internet and Population Statistics, a "website featuring up to date world Internet Usage, Population Statistics and Internet Market Research Data, for over 233 individual countries and world regions."

[/network/Internet] permanent link

Wed, May 30, 2007 5:39 pm

Checking on Whether a Remote System is an Oracle Server

Nmap can be used to determine if a system is functioning as an Oracle server using the command nmap -p 1521 -P0 -sT <ip_address>. Port 1521 is a port used by Oracle server software, but the port may also be used by other software, so, if nmap reports the system is listening on that port, it does not guarantee that the system is an Oracle server.

The options specified above are as follows:

-p <port ranges>
       This option specifies what ports you want to query.

-P0    Do  not  try  and  ping hosts at all before scanning them.  This
       allows the scanning of  networks  that  don't allow  ICMP  echo
       requests  (or  responses) through their firewall. 

-sT    TCP connect() scan: This is the most basic form of TCP scanning.
       The connect() system call provided by your operating  system  is
       used  to  open  a  connection  to  every interesting port on the
       machine. If the port is listening, connect() will succeed,
       otherwise  the  port  isn't reachable. One strong advantage to this
       technique is that you don/t need  any  special  privileges.  Any
       user on most UNIX boxes is free to use this call.

For a list of other ports used by Oracle, you can check Which TCP/UDP port or ports does 'oracle' use?

References:

  1. Which TCP/UDP port or ports does 'oracle' use?
    SecureTrust TCP/UDP Port Search Lookup Tool

[/network/Internet/IP/ports] permanent link

Sat, Apr 07, 2007 8:03 am

Happy Birthday Internet!

Reckoning by the publication of the first Request for Comment (RFC) document, the Internet was born April 7, 1969, when RFC 1 Title: Host Software was published by Steve Crocker.

RFC's document the protcols on the Internet. The precursor to today's Internet was the ARPANET, which was developed for the United States Department of Defense. The first RFCs were published in 1969 for the ARPANET. At first researchers distributed hard copies of the RFCs among themselves, but in December of 1969 they began distributing them using the ARPANET itself.

References:

  1. April 7, 1969: Birth of That Thing We Call the Internet
    By Tony Long
    Wired News
  2. Request for Comments
    Wikipedia, the free encyclopedia
  3. ARPANET
    Wikipedia, the free encyclopedia
  4. RFC 1 Title: Host Software
    By Steve Crocker
    IETF Tools

[/network/Internet] permanent link

Thu, Aug 03, 2006 8:54 pm

AOL Cuts 5,000 Jobs

AOL plans to cut about 5,000 jobs within 6 months as it tries to move away from its dwindling subscription dial-up service. AOL is planning to offer its services for free to broadband users, counting on advertising revenues to sustain it.

AOL's user base has been dwindling as users move to broadband services. Those that don't have access to broadband services or don't want to pay for broadband services are also likely to choose cheaper dial-up services rather than pay a premium price for AOL's ad-saturated dial-up service.

References:

  1. AOL to slash 5,000 jobs
    CNNMoney.com
    August 3, 2006
  2. AOL Tells Broadband Customers to Find New ISP
    MoonPoint Support
    November 12, 2004

[/network/Internet/ISP] permanent link

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