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Linux Command Rpcinfo - Check Nfs Client Connection

1) Issue the following command on the NFS client to make sure the server is running all the NFS server processes: /usr/bin/rpcinfo -p servername The rpcinfo command should display the following processes: rpcbind nfs mountd status nlockmgr llockmgr 2) Issue the following command on the NFS client to make sure the rpc.mountd processed on the NFS server […]

April 30, 2011 | By
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What All Command Used To Find Architecture Of Linux OS and CPU

Assume that administrator is in need to alter the existing system configuration or simply he wants to install a new software or hardware device before performing his needful task, he has to know the details of the system to make sure that the new software/hardware will work fine with the system environment. To get the […]

April 30, 2011 | By
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Error: modprobe: Can't locate module block-major-22

The message is simply informational and most of the time harmless to the system. Messages like this usually occur after a kernel update and appear when a module that was used by the kernel previously is not being used or is not loaded anymore. However, sometimes this message appears because the system is probing for […]

April 24, 2011 | By
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Linux Hdparm Command: Display Hard Disk Model and Serial Number

Hdparm is abbreviated as hard disk parameter. Hdparm is a command line utility used for setting the parameters of ATA hard disk in Linux operating system and also it is useful to view the current setting that is being used for your drive. A hard disk comes with a set default speed  and to change the […]

April 24, 2011 | By
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Everyday Linux ps command Examples for System Admin

Linux/Unix system administrator should be very proficient in performance monitoring and tuning. For performance monitoring, administrator should understand how various Linux component and processes works (like CPU, Memory, I/O and Network). Process status (PS) is a command used to display current running processes on Unix/Linux operating systems. This command is commonly used for process monitoring. Whenever […]

April 24, 2011 | By
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How To Enable Log For Ssh Login In Linux

To access the particular system on a network or to operate required device or to execute the commands through a remote system, we use several protocols like rlogin, rsh, rcp, rdist and ssh. Among those programmes, Secure Shell (SSH) protocol is the best for secure communications over insecure channels. SSH provides strong authentication for communication. […]

April 24, 2011 | By
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How To Configure Netdump Client On Linux

1. To check whether “netdump” package has already been installed or not: # rpm –qa | grep netdump 2. If it is not installed, install netdump using the following command: # up2date -i netdump 3.  To double check the installed package and configuration files: # rpm –qa | grep netdump Note: Netdump configuration file path. Configuration […]

April 24, 2011 | By
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Need For User bash_profile File In Linux

Every user in Linux has a profile. The profile is a set of facilities or rights provided to the particular user accounts. For example, if root user has different profile, then you can compare with normal users. If you login with normal user, some of the commands will not be executed because the path of the command is not […]

April 24, 2011 | By
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How To List Linux Pci Devices Using lspci Command

Peripheral component interface is a computer bus used for attaching the hardware devices in a computer. “lspci” command is used in Linux operating system to display all the information about these PCI buses of the system and devices which are attached to the system. By this lspci command, we can get the full detailed information like […]

April 23, 2011 | By
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What is LVM Mirroring? Steps To Create LVM Mirror in Linux

In the computer world, storage is the most important factor. If data is lost, then everything is lost for the organization or company. Initially data is stored in normal disks, it does not have flexibility to manage the data and it is very complicated and disaster for recovery management. To achieve flexibility and goal of the disaster […]

April 23, 2011 | By
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How To Use Screen And Script Command In Linux

The screen is a terminal multiplexer. Using this, you can run any number of console-based-applications, interactive command shells, course-based applications, etc. You can use screen to keep running program after you accidentally close the terminal, or even after you log out and later resume right wherever you are. You can start screen just by typing screen at […]

April 23, 2011 | By
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12 Different Options of Rsync Command in Linux With Examples

For organizations and companies, data is the most important factor. Especially for E-commerce business, data is very critical for them. Rsysnc is a tool or software which helps taking backup of critical data over the network. It is also used to network protocol for Unix-like and Windows systems that synchronizes files and directories from one system […]

April 23, 2011 | By
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How To Use Linux Route Add Command

As per OSI (Open System Interconnection), routing happens at network layer. Routing is fundamental to the design of the internet protocol. The main function of internet protocol is getting packets to the right machines. If source system and destination system are directly connected on the same network, then routing is simple. What happens when source system […]

April 23, 2011 | By
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Few Netstat Command Example Useful For Daily Usage

In Linux operating system, many services are running. All services are client and server architecture based; hence networking is must to communicate with another system or to external world through internet. To monitor the network, we use netstat to get statistic of the network and information such as connection, routing tables and interface statistics. Most of the Linux […]

April 23, 2011 | By
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