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Comments and suggestions concerning this book should be mailed to gmourani@videotron.ca © Copyright 1999-2000 Gerhard Mourani and Open Network Architecture ® 35 Put some colors on your terminal Putting some colors on your terminal can help you to distinguish folders, files, archives, devices, symbolic links and executable file from others. My opinion is that colors help to make less errors and fast navigation on your system.   Edit the profile file (vi /etc/profile) and add the following lines: # Enable Colour ls eval `dircolors /etc/DIR_COLORS -b` export LS_OPTIONS=’-s -F -T 0 --color=yes’ Edit the bashrc file (vi /etc/bashrc) and add the line: alias ls=’ls --color=auto’ Then log in and out; after this, the new COLORS-environment variable is set, and your system will recognize that. Update of the latest software’s Keep and update all software (especially network software) to the lasted versions, check the errata pages for the Red Hat Linux distribution, available at http://www.redhat.com/corp/support/errata/index.html. The errata pages are perhaps the best resource for fixing 90% of the common problems with Red Hat Linux. In addition, security holes for which a solution exists are generally on the errata page 24 hours after Red Hat has been notified. You should always check there first. Software’s that must be updated at this time for your Red Hat Linux 6.1 server are: groff-1_15-1_i386.rpm  sysklogd-1_3_31-14_i386.rpm  initscripts -4_70-1_i386.rpm  e2fsprogs -1.17-1.i386.rpm pam -0_68-10_i386.rpm  Linux kernel 2.2.14 (linux-2_2_14_tar.gz) NOTE: The Linux kernel is the most important, and always must be updated. See bellow for more information on building a custom kernel for your specific system. · You can verify if the RPM software above is installed on your system before make an update with the following command: [root@deep /]# rpm -q <softwarename> Where <softwarename> is the name of the software you want to verify like groff, sysklogd, etc.