Ethical Hacking Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package. | Computer Forensics Training at InfoSec Institute Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors. |

| Subject: | Re: Blocking IM |
|---|---|
| Date: | Fri, 9 Dec 2005 01:19:54 +0100 |
On Wed, 7 Dec 2005 20:50:48 -0500 Bourque Daniel <Daniel.Bourque@loto-quebec.com> wrote:
OK, there is something I don't get here.. I have been using this technique for a longtime to block whole domain. How can you only block msg.yahoo.com in your inside DNS server without blocking all yahoo.com?
That's heavily depending on your internal DNS server.
For DNSMASQ you simply add to /etc/hosts (of the DNS cacheing server)
127.0.0.2 msg.yahoo.com
For BIND you'll probably have to add a local zone (a complete
third-level-zone!) msg.yahoo.com with a single entry pointing
e.g. to localhost.
Bye
Volker
--
Volker Tanger http://www.wyae.de/volker.tanger/
--------------------------------------------------
vtlists@wyae.de PGP Fingerprint
378A 7DA7 4F20 C2F3 5BCC 8340 7424 6122 BB83 B8CB
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Re: Tool for to test firewall, Samuel R. Baskinger |
|---|---|
| Next by Date: | Re: Tool for to test firewall, Synister Syntax |
| Previous by Thread: | RE: Blocking IM, Bourque Daniel |
| Next by Thread: | Re: Blocking IM, Stephen Samuel |
| Indexes: | [Date] [Thread] [Top] [All Lists] |