Author: Ramdev

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RHEL 5 Linux : configure Kdump on Red Hat Enterprise Linux 5

Installing required packages RHEL 5 has the Kdump packages installed by default. If for any reason they are not installed, you need to install the packages “kexec-tools-.rpm” and “system-config-kdump-.rpm” with the following commands:   # rpm -ivh kexec-tools-.rpm system-config-kdump-.rpm or, if your system is registered at...

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RHEL5/6 Interview Questions : User Adminsitration

1. What command (and options) can be used to create a user named JSmith with the description “Jr Admin”? 1a. useradd –c “Jr Admin” JSmith 2. What is the format of the /etc/shadow file? 2a. The format of the /etc/shadow file is <username>:<encrypted password>:<last passwd change>:<min>:<max>:<warn>:<inactive>:<expires>:<not used>. 3....

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Linux Network Troubleshooting

Network connection problems include slow connections, as well as complete loss of connectivity. Factors that may cause slow connectivity include incorrectly configured domain name system (DNS) settings, inefficiently configured routing tables, inferior cabling, overloaded servers, and network congestion. The same set of factors, as well as...

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Cloud Computing : adoption issues

In my previous post  about ” Cloud Computing” ,  I tried to explain my understanding about cloud computing so far. In this post I am trying to highlight some of the important points and concerns , from various research studies, that need attention while planning for...

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