Introduction to Inode File descriptors, file table and inode table in Linux. Image Source: Wikipedia An inode is a data structure on a filesystem on Linux and other Unix-likeoperating systems that stores all the information about a file except its name and its actual data. Inode is created during creation of file along with file…
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Corruption of initramfs can be occur by many ways for example after patching CentOS 7 Linux OS or installing a buggy device driver in server you found CentOS 7 Linux server has become unbootable. You may also encouter below kernel panic error because server initramfs got damaged . CentOS 7 Linux Kernel Panic screen Now…
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Linux is known for one of most secure Unix Operating System (OS) in world. But that is not mean it is 100% secure there is say in Information Technology (IT) no technology is a completely secure that is why from a System Administrator to CIO they take measure for securing IT infrastructure on regular basis…
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Microsoft has added Windows Subsystem for Linux (WSL) from Microsoft Windows 10 version 1607 onward and Windows Server 2019 it has replaced the older Windows Services for Unix it is like WINE in Linux which provide compatible layer for running Windows based application on Linux likewise WSL provide a subsystem or layer on which different Linux distro…
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Red Hat has launched the beta version of Red Hat Enterprise Linux 8 (RHEL 8) for users and developers for testing purpose and getting feedback from them. Red Hat Inc. which is developing RHEL 8 has announced this operating system beta version for public use on November 14, 2018. Four year ago when Red Hat…
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You were running a program installed in your Linux/Unix system and suddenly that program get stop and it log error in its logs memory segmentation fault error or you might executing a command in Linux / Unix server say you are working on LVM extension or VG scanning but you are unable to do so…
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Whenever you apply an install/update/remove any package or packages Ubuntu log the changes happened to packages in its default file /var/log/dpkg.log. If you do listing to /var/log/ path (below is the command) you may find numbers of uncompressed and compressed dpkg.log files it depends on what type of log rotate policy is configure in file…
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Pacemaker is an open source cluster manager software which provide high availability of resources or services in CentOS 7 or RHEL 7 Linux. It has feature of scalable and advanced HA Cluster Manager. This HA cluster manager distributed by ClusterLabs. Corosync is the core of Pacemaker Cluster Manager as it is responsible for generating heartbeat…
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You are updating the system through yum command and suddenly power goes down or what happen if yum process is accidentally killed. Post this situation when you tried to update the system again with yum command now you are getting below error message related to rpmdb: error: rpmdb: BDB0113 Thread/process 2196/139984719730496 failed: BDB1507 Thread died…
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Docker is a container management service. The Docker keyword coined in DevOps for develop, ship and run anywhere why it is so because it enable the developers to easily develop the applications, ship the application into containers and later it can be deployed anywhere. The Docker was released in March 2013 but has become buzzword…
