Installing R project for statistics in Fedora Linux.

Is is as easy as this:

[root@dyn8382 ~]# yum install R R-devel
[root@dyn8382 ~]# R
>install.packages("arules", repos="http://R-Forge.R-project.org")




http://www.r-project.org/

Datamining with Linux

I'm currently doing the Datamining Specialist course and i try to use open source solutions, and if not open source, linux solutions... because i am a unix user.

This is a list of software i recommend to try, i am studying some features and they are
all great:

WEKA (http://www.cs.waikato.ac.nz/ml/weka/)

Weka is a collection of machine learning algorithms for data mining tasks. The algorithms can either be applied directly to a dataset or called from your own Java code. Weka contains tools for data pre-processing, classification, regression, clustering, association rules, and visualization. It is also well-suited for developing new machine learning schemes.

The R Project for Statistical Computing (http://www.r-project.org/)
R is a free software environment for statistical computing and graphics.

Matlab (http://www.mathworks.com/)
This is a commercial software that can be used to create models of artificial neural networks and any kind of math problems.

dTree ( http://www.aispace.org/dTree/)
This tool demonstrates how to build a decision tree using a training data set and then use the tree to classify unseen examples in a test data set.

If you know some other soft, please post it and i'll try it.

VMplayer crash in fedora 12

After installing VMplayer from the bundle, the 3.0.1 version i were surprised because it crashed just one second after running it.  Thanks that another co-blogger posted the solution, too simple in fact:

cd /usr/lib/vmware/lib

mv libcurl.so.4 libcurl.so.4.old

Credits:

here and here

If you need to recompile the modules because some of them is failing, you can do it this way:

vmware-modconfig --console --install-all

If you need more help and you want to get in touch with me Why not contact me ;-)

Errors compiling VMware Server on Fedora 12

Hi! Today i downloaded vmware server to use it on my Linux workstation.  I am using Fedora 12 with the latest kernel update so i had not much hope to compile the vmware kernel modules without some troubleshooting.

After solving the problems, here i share the solutions i hope to help you.  If you find it useful, remember that you can Invite me a kaffee ! :)

1. Download the latest VMware workstation (It is free)
https://www.vmware.com/tryvmware/p/activate.php?p=server20&lp=1&ext=1

Note: I downloaded the rpm version.

2. Install it:
yum install VMware-server-2.0.2-203138.i386.rpm

3. Try to compile the modules:
vmware-config.pl

Ok.. in this moment a lot of warnings and errors appear between them, errors with vmnet, vmci, etc...

make[1]: Leaving directory `/usr/src/kernels/2.6.32.10-90.fc12.i686'
Unable to build the vmnet module.


Unable to build the vmci module.

4. Patch the modules:

- Download from http://www.erdemap.com/store/2.6.32.10-90.fc12.vmmon.tar.gz
wget http://www.erdemap.com/store/2.6.32.10-90.fc12.vmmon.tar.gz

5. unzip & untar it.
6. execute the patch shell script *inspect it first, it is very VERY basic*
7. After installing the patches, execute the vmware-config.pl

Starting VMware services:
   Virtual machine monitor                                 [  OK  ]
   Virtual ethernet                                        [  OK  ]
   Bridged networking on /dev/vmnet0                       [  OK  ]
   Host-only networking on /dev/vmnet1 (background)        [  OK  ]
   DHCP server on /dev/vmnet1                              [  OK  ]
   Host-only networking on /dev/vmnet8 (background)        [  OK  ]
   DHCP server on /dev/vmnet8                              [  OK  ]
   NAT service on /dev/vmnet8                              [  OK  ]
   VMware Server Authentication Daemon (background)        [  OK  ]
   Shared Memory Available                                 [  OK  ]
Starting VMware management services:
   VMware Server Host Agent (background)                   [  OK  ]
   VMware Virtual Infrastructure Web Access
Starting VMware autostart virtual machines:

If you need more help and you want to get in touch with me
Why not contact me ;-)

Five Easy Ways to Secure Your Linux System

On the heels of last week’s entry on using DenyHosts, and Nikto the week before that; I thought it appropriate to continue in the security vein with five more simple techniques that you can use to protect your systems. These include using account locking, limiting cron use, using DENY access to services, refusing root SSH logins and changing SSHD’s default port.

Keep reading..

 Account Locking

 Cron Restriction

 Deny, Deny, Deny

 Deny SSH by Root

 Change the Default Port

Nice Free software video

Error compiling cairomm

While compiling cairomm i got this error:

configure.ac:37: error: possibly undefined macro: AC_DISABLE_STATIC
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:38: error: possibly undefined macro: AC_LIBTOOL_WIN32_DLL
configure.ac:39: error: possibly undefined macro: AC_PROG_LIBTOOL
autoreconf: /usr/bin/autoconf failed with exit status: 1

Solution:
Install libtool:

[root@dyn854450 ~]# yum install libtool