RSSCategory: LINUX HOWTO

How to Encrypt/Decrypt and Signing using GPG Command in Linux

There is no absolute security on the internet or through a network. Because our equipment are regularly connected on the internet and there is some communication, we need to protect the criticals information we exchange. Encryption will be a welcome safeguard for whenever you, your family, or business partners need to communicate sensitive information from […]

Posted on : May 9, 2011 , Last Updated on : April 5, 2017 By
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How To Fix if Partition Table Entries not in Disk Order

The suggestion given below can help if your partition table is not in a proper disk order. From linux fdisk (fdsik /dev/), choose the advanced menu (by pressing x, afaik), then choose the entry for correcting partition ordering (press 'm' anytime to get some help on commands). You should know that after following the step above, your […]

Posted on : May 5, 2011 , Last Updated on : October 5, 2016 By
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How To Reset Root Password In Linux with Screenshot

This article explains the process of resetting the root password in a CentOS Linux machine in case you have forgotten the root password. “Root” is the superuser of a Linux machine. In order to access the Linux server as a root user, you need to authenticate first. In case you have forgotten root password, you […]

Posted on : May 5, 2011 , Last Updated on : October 5, 2016 By
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Linux Ethtool Helps Troubleshooting Ethernet Network Cards Issues

The Ethtool command is used to change Ethernet adapter settings. With the use of this command, you can change network card speed, auto-negotiation, wake on LAN setting, duplex mode etc. It is helpful to have some information about a particular network adaptor, specially in checking the software for compatibility. It is not available by default in installation. So, […]

Posted on : May 2, 2011 , Last Updated on : October 5, 2016 By
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Linux Boot Into Root Shell Without Prompting Password

Take the following steps: 1.Reboot server 2. Next, you will see grub-boot loader screen. Select Recovery mode and the version of the kernel that you wish to boot and type 'e' for edit. Select the line that starts with 'kernel' and type 'e' to edit the line. 3. Go to the end of the line […]

Posted on : May 2, 2011 , Last Updated on : October 5, 2016 By
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6 Examples Linux Chage Command : Set Password Aging For User

The command name ‘chage’ is an acronym for ‘change age’. This command is used to change the user's password's aging / expiry information. Any user can execute this command with the ‘-l’ option to view their password and aging information. No other unauthorised users can view the password's aging/expiry information. As the root user, you can […]

Posted on : May 2, 2011 , Last Updated on : October 5, 2016 By
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How Linux Who & Last Command Helps for Root Cause Analysis

The last command is very important in linux as it helps in doing root cause analysis of the linux system. Assume that something is changed in the linux system, in this situation you are not sure who has made the changes. Using the 'last' command you can identify who logged in at the particular time when the changes were made. […]

Posted on : May 2, 2011 , Last Updated on : October 5, 2016 By
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Example : How To Encrypt / Decrypt A File In Linux

If you are really concerned about the privacy and confidentiality of your files, encrypting files can help you. File encryption in Linux can be done in many ways, such as, using keys and software. GPG( Gnu Privacy Guard) by GNU is an encryption software provided free of charge. Here,we are trying to encrypt a file named “test”. GPG […]

Posted on : April 30, 2011 , Last Updated on : October 20, 2016 By
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How to Display Physical / Volume Group / Logical Volume in LVM

Logical Volume Manager (LVM) for Linux provides a flexible and efficient way of disk management. Virtual partitions are created by using LVM. These virtual partitions can easily be resized in comparison to normal disk partitions. This article provides an overview of LVM and how these Logical Volumes can be activated. The physical partitions on the disk form Physical […]

Posted on : April 30, 2011 , Last Updated on : October 2, 2016 By
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Few Tips Check Hard Disk Error and Health using smartctl

Checking the hard drive status of your pc is important. All the sensitive data is in your hard disk. In case of a hard disk failure, recovery is difficult and time consuming. Hard disks can have errors due to power failures and usage. Common errors include bad sectors or physical errors. Checking the hard disk status is […]

Posted on : April 30, 2011 , Last Updated on : October 4, 2016 By
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How to Set Linux Grub Password with Examples

Boot loader is an integral part of the computer. In computing, booting is a set of operations that computer systems perform when power is on. Today, modern computers take one- tenth of a second and typically perform power on self test (POST). A Boot Loader is a computer program that loads the main operating system of the computer after […]

Posted on : April 30, 2011 , Last Updated on : June 9, 2017 By
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Create LVM On New Disk In Redhat Linux

First of all, make a partition using fdisk command and then toggle that partition to LINUX LVM (8e) label.Then create a physical volume using pvcreate command as follows: #pvcreate /dev/hda10 To display the size of the physical volume: #pvdisplay /dev/hda10 To create volume group whose name test: #vgcreate test /dev/dha10 To display the details of volume […]

Posted on : April 30, 2011 , Last Updated on : October 2, 2016 By
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How To Boot Linux Grub Into Single User Mode

GRUB is a GRand Unified Bootloader, the default bootloader in Linux. GRUB can be used to boot Linux in the single user mode. The single user mode is a restricted mode, that is used for maintenance purposes. In single user mode, the only user available is the root user, and in RHEL, no password is asked for […]

Posted on : April 30, 2011 , Last Updated on : October 2, 2016 By
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10 Example Scenarios To Learn Linux Find Command

The linux command “find” is a very powerful command which is basically used for searching files under a directory structure. This command can be used to find files using a variety of options such as by name,file type, inode number, file permissions etc. The output of "find" command can be used to perform other operations […]

Posted on : April 30, 2011 , Last Updated on : October 2, 2016 By
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