RSSCategory: LINUX HOWTO

How unmount Properly when NFS mount is Busy

There are different ways and options we can try out if normal nfs unmount fails. Usually nfs unmount shows device busy alert. Below example shows the unmount fails because the device is busy # umount /nfs_apps umount: /nfs_apps: device is busy umount: /nfs_apps: device is busy Next best option is to check why it is […]

February 22, 2011 | By
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Easy Steps Enabling SNMP and Configuration In Linux

Before I explain about Linux SNMP configuration, I'll let you know what is SNMP. Simple Network Management Protocol (SNMP) is a well known protocol for network management. It is really hard to manage large networks that have thousands of network device. SNMP helps you to monitor nodes from a management host. You need to install SNMP […]

February 22, 2011 | By
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How To Use Linux Tr Command With Examples

The tr command is used in Linux for translating characters. The tr command utility needs two sets of characters. It replaces occurrences of the characters in the first set with corresponding character from the second set. For example, tr command can be used to change small letters to capital letters and likewise. When the strings are […]

February 22, 2011 | By
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Learn 3 Important Bits - StickyBit, SUID & SGID in Linux with Examples

The regular file and directory permissions in Unix/Linux world are read write and execute permissions on owner, group and other levels. This article discusses special permissions for files and/or directories. SUID Bit When an executable file runs, it runs under the ownership of the user who has executed it. It means that when student user […]

February 21, 2011 | By
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