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Ramesh Natarajan

How To Monitor Network Switch and Ports Using Nagios

Nagios is hands-down the best monitoring tool to monitor host and network equipments. Using Nagios plugins you can monitor pretty much monitor anything. I use Nagios intensively and it gives me peace of mind knowing that I will get an alert on my phone, when there is a problem. More than that, if warning levels [...]

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Around The Geek World – Oct 2008

Around The Geek World is a monthly summary of interesting articles and news around the geek world with my brief comment. I hope you enjoy this collection of interesting geek articles for October 2008. 7 online blunders – One of the 7 blunders mentioned in this article is: Using single password for all online accounts, [...]

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Bugzilla, an open source bug tracking system uses MySQL for the database. When you try to attach a document to the bug that is greater than 1MB in size, you will get the error message shown below. This article explains how to fix this problem by changing the MySQL max_allowed_packet database parameter and bugzilla maxattachmentsize [...]

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When you call DELL customer support for any help, they will ask for either Service Tag or Express Service Code. You also need service tag to download drivers and documentations from DELL support website. When you have physical access to the system, you can easily identify the service tag affixed on the body of the [...]

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In our previous articles, we discussed how to setup ssh key based authentication to perform ssh and scp without password under the following three scenarios: OpenSSH to OpenSSH OpenSSH to SSH2 SSH2 to SSH2 In this article, I’ll explain how to perform ssh and scp from SSH2 (local-host) to OpenSSH (remote-host) with no password. 1. [...]

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GNU Midnight Commander (mc) is a powerful text based file manager for Unix.  mc gives an jumpstart for Windows power-users who would like to transition to Unix.  It also has several advanced features to keep experienced Unix users happy.  mc can run from any Unix terminal. If your terminal can execute vi, you can execute [...]

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How To Upload Data to MySQL tables using mysqlimport

Uploading several rows of data from a text, csv, and excel file into a MySQL table is a routine task for sysadmins and DBAs who are managing MySQL database. This article explains 4 practical examples on how to import data from a file to MySQL table using both mysqlimport and “load data local infile” method. [...]

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This article is part of the ongoing Productivity Tips for Geeks series. cd is one of the most frequently used command during a Unix session. In this article, I’ve provided 6 cd command hacks, which will boost your productivity instantly and make it easier to navigate the directory structure from command line. Hack #1: Use [...]

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