An introduction to TCP Wrappers

Wednesday, 27 July 2005, 9:52 AM EST

The basic idea of TCP Wrappers is to provide wrapper daemons that can be installed without any changes to existing software. Most TCP/IP applications depend on the client/server model: that is, when a connection is requested by a client, a server process is started on the host to deal with this. TCP Wrappers works by interposing an additional layer, or wrapper, between client and server. In the basic service, the wrapper simply logs the name of the client host and of the requested service, then hands over to the real daemon, neither exchanging information with the client or server, nor imposing overhead on the actual conversation between the two.

By Paul Dunne at Linux, Unix, /etc/.

[ Read more ]




Spotlight

Email scammers stole $215M from businesses in 14 months

Posted on 29 January 2015.  |  In 14 months there have been nearly 1200 US and a little over 900 non-US victims of BEC scams, and the total money loss reached nearly $215 million.


Weekly newsletter

Reading our newsletter every Monday will keep you up-to-date with security news.
  



Daily digest

Receive a daily digest of the latest security news.
  
DON'T
MISS

Fri, Jan 30th
    COPYRIGHT 1998-2015 BY HELP NET SECURITY.   // READ OUR PRIVACY POLICY // ABOUT US // ADVERTISE //