1 / 15

Configuring Systems with cfengine

Member: Wei-Jie Hsiao 、 Hui-Hsiung Chung Advisor: Quicy Wu Date: Mar.23. Configuring Systems with cfengine. Outline. Getting an Overview of cfengine Learning the Basic Setup. Getting an Overview of cfengine.

rupali
Download Presentation

Configuring Systems with cfengine

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Member: Wei-Jie Hsiao、Hui-Hsiung Chung Advisor: Quicy Wu Date: Mar.23 Configuring Systems with cfengine

  2. Outline • Getting an Overview of cfengine • Learning the Basic Setup

  3. Getting an Overview of cfengine • Cfengine is software you can use to automate changes on UNIX (and UNIX- like) systems. • It is a high- level language that describes system state, not a general- purpose programming language such as Perl or a shell.

  4. Getting an Overview of cfengine(cont.) • Cfengine can use Several ways to management the systems as follows: • Setup the network interface • Edit the system files • Edit the permission to access files • Delete the unused flies

  5. The Components of cfengine: • Cfagent • Cfservd • Cfexecd • Cfkey • cfrun

  6. cfagnet • The autonomous configuration agent (the heart of the framework). This command can be run manually (on demand),cfexecd on a regular basis, and/or by cfservd when triggered by a remote cfrun invocation. The necessary and sufficient condition for using cfengine is to run cfagent somehow.

  7. Cfservd • The file- transfer and remote- activation daemon. You must run this on any cfengine file servers and on any system where you would like to execute cfagent remotely.

  8. Cfexecd • Generates public/private key pairs and needs to be run only once on every host.

  9. cfkey • The execution and reporting daemon. You run this either as a daemon or as a regular cron job. In either case, it handles running _b]cajp and reporting its output.

  10. cfrun • You can run this command from a remote system that will contact the clients (through cfservd) and tell them to execute cfagent.

  11. Learning the Basic Setup • Download the Cfengine from here http://www.cfengine.org, or any other website and install it. • Example: • Step1: • $ tar zxf cfengine-2.x.x.tar.gz • $ cd ./cfengine-2.x.x • $ ./configure • $ make • $ sudo make install

  12. Learning the Basic Setup(cont.) • Then create the working directly as follows: • Step2: • # mkdir /var/cfengine • # mkdir /var/cfengine/bin • # mkdir /var/cfengine/inputs

  13. Learning the Basic Setup(cont.) • Copy the binary code of cfengine to working directly • Step3: • # cp /usr/local/sbin/cfagent /var/cfengine/bin • # cp /usr/local/sbin/cfexecd /var/cfengine/bin • # cp /usr/local/sbin/cfservd /var/cfengine/bin • # chown -R root:0 /var/cfengine • # chmod -R 755 /var/cfengine

  14. Learning the Basic Setup(cont.) • The first time we use the cfengine • # /usr/local/sbin/cfkey • # /var/cfengine/bin/cfagent • cfengine::/bin/echo Dange: Danger, Will Robinson! • Then we can check whether the cfengine is successfully working or not • #/var/cfengine/inputs/cfagent.conf • control: • actionsequence = ( shellcommands ) • shellcommands: • “/bin/echo Danger, Will Robinson!”

  15. Thanks for listening!!

More Related