Free Knowledge Resources


Linux Manual Pages


Free Software * Books

Source Code

Free Media

Linux

xinetd.log(5)


NAME

   xinetd.log - xinetd service log format

DESCRIPTION

   A  service  configuration  may  specify various degrees of logging when
   attempts are made to access the service. When logging for a service  is
   enabled,  xinetd  will  generate  one-line  log  entries which have the
   following format (all entries have a timestamp as a prefix):

          entry: service-id data

   The data depends on the entry.  Possible entry types include:

          START       generated when a server is started

          EXIT        generated when a server exits

          FAIL        generated when it is not possible to start a server

          USERID      generated if the USERID log option is used.

          NOID        generated if the USERID log option is used, and  the
                      IDONLY service flag is used, and the remote end does
                      not identify who is trying to access the service.

   In the following, the information enclosed in brackets appears  if  the
   appropriate log option is used.

   A START entry has the format:

          START: service-id [pid=%d] [from=%d.%d.%d.%d]

   An EXIT entry has the format:

          EXIT: service-id [type=%d] [pid=%d] [duration=%d(sec)]

   type  can  be  either  status or signal.  The number is either the exit
   status or the signal that caused process termination.

   A FAIL entry has the format:

          FAIL: service-id reason [from=%d.%d.%d.%d]

   Possible reasons are:

          fork           a certain number  of  consecutive  fork  attempts
                         failed (this number is a configurable parameter)

          time           the time check failed

          address        the address check failed

          service_limit  the  allowed  number of server instances for this
                         service would be exceeded

          process_limit  a limit on the number  of  forked  processes  was
                         specified and it would be exceeded

   A DATA entry has the format:

          DATA: service-id data

   The data logged depends on the service.

          login       remote_user=%s local_user=%s tty=%s

          exec        remote_user=%s verify=status command=%s
                      Possible status values:

                      ok        the password was correct

                      failed    the password was incorrect

                      baduser   no such user

          shell       remote_user=%s local_user=%s command=%s

          finger      received string or EMPTY-LINE

   A USERID entry has the format:

          USERID: service-id text

   The text is the response of the identification daemon at the remote end
   excluding the port numbers (which are included in the response).

   A NOID entry has the format:

          NOID: service-id IP-address reason

SEE ALSO

   xinetd(1L), xinetd.conf(5)

                             28 April 1993                   XINETD.LOG(5)



Opportunity


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.



Free Software


Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.



Free Books


The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.



Education


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.


birds banner