9. The simple way of setting up NAT with iptables and Red Hat / CentOS and Scientific Linux

   I always feel intimidated with setting NAT. I knew, of course, how to filter packets with iptables, but I always felt that NAT to be just a tad bit confusing. Then I studied for the RHCE exam and it turns out that it is a lot easier than I expected …

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10. bash: Field Separator Variable

    sys-log:

    By default when using a for loop in bash the field separator is set to a space.

    Example:

    [bcane@bcane \~]\$ for x in list:like:this; do echo \$x; done
    list:like:this

    One of the cool things about bash is that you can change this by setting a …

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11. UNIX BASH scripting: Rename file to uppercase except extension - Bash

    UNIX BASH scripting: Rename file to uppercase except extension - Bash

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12. CentOS 5.7

    reallinux:

    CentOS 5.7 is out: http://wiki.centos.org/Manuals/ReleaseNotes/CentOS5.7

    CentOS is built from the original RHEL sources and aims to be binary compatible with the RedHat distribution.

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13. A Slightly Longer Guide to Setting up a Caching / Forwarding Name Server

    Setting up a caching server on RHEL6, by default, works out of the box for a RHEL-type distributions. From there, it is just the matter of adding additional changes to make it either a forwarding, master or slave name server.

    Of course, in our case, there were glitches.

    Reviewing through …

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14. Configuring ISCSI with RHEL, Scientific Linux or CentOS 6

    I have been playing around with my newQNAP NAS appliance, getting the storage configured and the volumes setup with my Scientific Linux 6 virtual machines using Daniel’s articles as a reference point. While the articles worked well easily for me at the beginning, setting client VMs with authentication …

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