Redhat/CentOS/Generic Linux: How to sort files by their size ?
Today we will have a look how to sort files by their size in a directory on Linux Operating system. The tip is very basic, however we should be aware...
Tag: redhat
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How to view IPv6 IP address and ping it on Linux ?
Let us have a look how to view IPv6 addresses in Linux. For this, we can use the same “ifconfig” command. 1. Viewing IPv6 Address [root@ngelinux ]# ifconfig -a enp0s3:...
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How to increase ext3/ext4 disk partition in Linux, which is not on LVM ?
In this post, we will see how to increase ext filesystem partition in Linux manually when the filesystem is created directly on block device instead of LVM. Increase Partition size...
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RHEL 7 or CentOS 7: How to work with XFS filesystem: Backup/Restore/Create/Extend Operations ?
XFS stand for Extents File System. XFS was first created by Silicon Graphics INC in 1993. In 2001, its support in included in Linux kernel. Till RHEL 6, we have...
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Solved: xfs_quota: cannot set limits: Function not implemented.
Today we will look solution of an error message below. Solution Usually we use remount option with quota command to enable quota which doesn’t work and generates the error...
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Introduction to Systemd, how to start using systemd in RHEL 7 or Centos 7 ?
With introduction or RHEL7 or CentOS 7, we have a new concept introduced known as systemd. Personally i don’t liked the new concept as its a little bit complex to...
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Why journalctl logs disappear after reboot and how to make it permanent ?
By default, Journald logs gets stored in /run/log/journal directory and disappear once the system gets rebooted. I. Default Journald configuration [root@localhost ~]# date Wed Mar 13 10:50:29 PDT 2019 [root@localhost...
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What are control groups in RHEL or CentOS 7 and how to view different cgroups ?
I. Introduction to C Groups Control Groups or CGroups were introduced in the Linux kernel by Google starting from 2006 onwards. Control group as its name implies can set a...
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How to list, stop, start, manage services in Centos or Redhat Linux 6 and 7 ?
Today we will look at an interesting topic how to manage services in CentOS/RHEL 6 and 7. We will look these step by step to understand it better. 1. List...