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Login as “ root ” on “ spicykerala.co.in ” and generate a pair of authentication keys. Note: even if is unsecured to work without password, do not enter it. Let it empty... [root@spicykerala]# ssh-keygen -t rsa Generating public/private rsa key pair. Enter file in which to save the key (/root/.ssh/id_rsa): Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in /root/.ssh/id_rsa. Your public key has been saved in /root/.ssh/id_rsa.pub. The key fingerprint is: b4:35:f8:0e:44:ba:b1:85:ea:17:d3:41:da:8b:58:ed root@spicykerala.co.in The key's randomart image is: +--[ RSA 2048]----+ | o                          | | O .                        | | * O o              ...

For storing all the RPM packages installing via yum installer, add this following line to your /etc/yum.conf file. keepcache=1 For Example: [vichooss@spicykerala ~]$ more /etc/yum.conf [main] debuglevel=2 logfile=/var/log/yum.log exactarch=1 obsoletes=1 gpgcheck=1 plugins=1 installonly_limit=3 color=never keepcache=1 Then all rpm packages installed via yum are stored in /var/cache/yum/*/packages . you can change the cache directory by specifying cachedir=<mydir> in yum.conf . For Example: [ vichooss@spicykerala ~]$ more /etc/yum.conf [main] debuglevel=2 logfile=/var/log/yum.log exactarch=1 obsoletes=1 gpgcheck=1 plugins=1 installonly_limit=3 color=never keepcache=1 cachedir=/home/vichooss/Downloads

Installation of fonts in Fedora is actually quite easy. To install the font system wide, all you need to do is put it in the fonts in a directory. To be consistent, create a new directory under “/usr/share/fonts”. For example, I created directory: #mkdir /usr/share/fonts/malayalam change the permission of the directory. #chmod 775 -R /usr/share/fonts/malayalam Copy required fonts to that directory. #cp /home/user/Downloads/Manorama.ttf  /usr/share/fonts/malayalam then all you have to do is run “fc-cache” command on that directory, e.g #cd /usr/share/fonts #fc-cache malayalam

Here we are installing EMC storage in Fedora 13 (which is not recommended by EMC). EMC's software Powerpath will not support with Fedora. So here we are using the package called Multipath. That is default with fedora. 1.      Try to boot from the fedora optical Media. 2.      Press Esc button when you will get the first boot loader menu for the boot prompt.  3.      In that boot prompt. Type: # Linux mpath Then press Enter. (If you are not getting the basic video driver then do the following step) # Linux mpath xdriver=vesa nomodeset 4.      Install fedora with all the available packages. (In the mean time you can configure the storage also. In storage you have to create  virtual disk[s].) 5.      Configure the IP addresses. 6.      Connect the storage with server through switch. 7.      start the iscsi...

Here I’m discussing about the installation of MPICH software in servers. For this we need minimum 2 numbers or more computers. One should be server and all others are node computers. After configuring this package the entire system will work like a Cluster Solution. You can execute parallel programs as well as serial. No need of installing additional packages. You can assign number of processors for each program. If you want any graphical monitoring tool then you can go for open sources like Ganglia.  Install OS in both servers (master & slave) Assign IPs and hostname on both (master & slave) Disable firewall and security on both (master & slave) MPICH2 installation on both servers (master & slave) Download the latest version of software from net. Unzip by using following command # tar –zxvf mpich2-1.2.1p1.tar.tar Configure by using following command # cd mpich2-1.2.1p1 # ./configure --prefix=/opt/mpich2-1.2.1p1 –with- rsh=ssh --with-pm=mpd:g...