Thanks Ben, I used the wrong domain name. When ns.pearsoncmg.com is queried for media.pearsoncmg.com, this is what is returned in the answer section:
;; ANSWER SECTION: media.pearsoncmg.com. 808 IN CNAME media.pearsoncmg.com.edgesuite.net. media.pearsoncmg.com.edgesuite.net. 16919 IN CNAME a1355.g.akamai.net. a1355.g.akamai.net. 16 IN A 64.215.158.205 a1355.g.akamai.net. 16 IN A 64.215.158.218 Thanks for the help. I am going to read and learn how to use dig. Shane -----Original Message----- From: Ben Scott [mailto:[email protected]] Sent: Tuesday, August 30, 2011 9:49 AM To: NT System Admin Issues Subject: Re: How to determine a host's IP range On Tue, Aug 30, 2011 at 9:26 AM, Thomas Mullins <[email protected]> wrote: > dig +short txt_netblocks.pearsoncmg.com There were no results > returned. Where did "txt_netblocks.pearsoncmg.com" come from? That doesn't appear to be an existent domain name. It's even questionable syntax; Internet host names aren't supposed to contain underscores. Also, you want to query the authoritative nameservers directly; otherwise, you're just seeing what's in your cache. Given your original message, I found: > dig +noall +ans ANY media.pearsoncmg.com. @ns.pearsoncmg.com. media.pearsoncmg.com. 900 IN CNAME media.pearsoncmg.com.edgesuite.net. > Mr. Aldrich is right: This appears to be hosted by a Content Distribution Network, so you're likely to find the IP address varies all over the place. -- Ben ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
