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  • Home
  • Ask the Experts
  • Migrating infrastructure from Unix to Linux

    Unix-to-Linux migration expert Ken Milberg describes how virtualization, support, clustering and more fit into the migration of an IT infrastructur...

  • Installing Nagios on Linux and unravelling software ...

    A reader new to Linux wonders about which distribution is recommended for installing Nagios and what Nahant and Tikanga mean.

  • Systems monitoring and tuning tools for RHEL 5

    Documentation for Red Hat Enterprise Linux 5 covering checking system performance, tuning, kernel configuration and extending the file system exist...

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Expert Answers

  • Preserving templates in Oxygen Office Professional 2.0.4 and OpenOffice 2.0

    An office suite expert tells how to save office templates in one office suite, Oxygen Office Professional 2.0.4., for a user considering an upgrade to OpenOffice 2.0.

  • MySQL query cache

    An expert defines MySQL's query cache and describes when to use it and when to avoid it.

  • Comparing functions in Excel vs. Base

    An OpenOffice expert describes how to perform the Excel tasks, like math functions and the "insert merge field" command, in OpenOffice's database program, Base.

  • Integrating applications with Linux

    A Unix-Linux migration expert offers some key points to consider when transferring native applications from Unix to Linux.

  • 3 ways for inserting spreadsheets Writer documents

    An OpenOffice expert describes three methods for inserting spreadsheets into a Writer document in OpenOffice 2.0.

  • MySQL's query optimizer

    A MySQL expert describes the role of the query optimizer and provides an example of how it works.

  • Setting up SSH for remote, secure server access

    A Linux security expert gives non-operating system specific advice on setting up Secure Shell (SSH) for remote access from a server.

  • SquidGuard as Linux proxy for Windows XP

    A Linux security expert recommends a helpful SquidGuard tutorial for a user having trouble running redirec_program /usr/bin/squidGuard.

  • Securing Fedora Core 5 against attackers

    A Linux security expert recommends several best practices for hardening your Fedora Core 5 proxy server.

  • Alert vs. log in the Snort /var/log/snort directory

    A Linux security expert explains that the difference between the Snort alert and log logs in the Snort /var/log/snort directory is based on how rules are written.

  • Running Nagios on RHEL 5 or Solaris 10

    A security expert recommends using a Linux-based operating system, like Red Hat, with open source network monitoring tool Nagios.

  • Creating triggers to remove users

    A MySQL expert gives an example of a foreign key and a trigger to use when removing users from tables.

  • Reporting Nagios data to BMC Patrol

    A security expert describes how to configure open source network monitoring tool Nagios so that data alerts, reports and other information generated are sent to BMC Patrol, which will be used as an...

  • User vs. local variables

    A MySQL expert describes the difference between user variables and local variables.

  • Limiting table access with a stored procedure

    An expert describes how to limit table access and viewing with a stored procedure instead of the GRANT statement.

  • Modifying the GRANT statement

    A MySQL expert describes how to modify the GRANT option, when issuing permissions for tables, with the WITH GRANT OPTION.

  • Red Hat's business model

    An open source software and applications expert says that Red Hat has nothing to fear from free Linux distros; reliability and certainty are the cornerstones of its commercial support.

  • Adding a not exist to a subquery with several joins

    A MySQL expert describes how to rewrite NOT EXISTS as joins when trying to add a NOT EXIST to a subquery with several joins.

  • Monitoring open ports on RHEL 5

    A Linux security expert describes how to determine which ports are open in Red Hat Enterprise Linux 5 (RHEL 5) and how to figure out if your ports have been compromised by an attack.

  • Microsoft, commercial Linux and patent battles

    An open source issues and strategies expert explains Microsoft's patent infringement claims.

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