I hope you are already aware of different sections of rpm field as you must be aware if your rpm is compatible with the distribution you plan to install. But anyhow if you are downloading and installi
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In my last article I shared the steps to configure LVM based HA cluster without GFS2 file system. Now let me share the steps to configure iSCSI target and initiator on RHEL or CentOS 7 Linux node.
Read MoreHow to set default boot kernel in linux? How to change the default boot entry for kernel ? How to boot with old kernel version ? How to revert to previous kernel version ? In my last ...
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9 commands with PSSH to perform parallel SSH in Linux with examples
In my last article I shared 5 commands to copy file from one server to another in Linux or Unix. PSSH is short abbreviation for Parallel Secure SHell or Parallel SSH. pssh is a program for executing s...
Read MoreIn my last article I shared the steps to encrypt a file using gpg key in Linux. Now in this article I will share various commands and tools which you can use to securely copy file from one server to a
Read MoreIn my last article I shared the steps to improve Disk IO Performance in Linux. Security is a major part of the foundation of any system that is not totally cut off from other machines and users. In th
Read MoreEarlier I shared the steps to allocate resource using cgroups and slice in Linux. Now with this article I will share different commands and files which can be used to check if server is physical or vi
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Steps to allocate resource using cgroups and slice in Linux with examples
In my last article I had shared a step by step guide to change tmpfs partition size for /dev/shm, /run and others using fstab and systemd on Linux. Now to start with this article, cgroup or Control G
Read MoreIn this article I will share some of the basic OpenStack command line cheat sheet which can be useful for beginners starting with OpenStack. Identity (Keystone) To list the installed u
Read MoreThere are several metrics available to check memory usage per process in Linux. I will begin with the two that are easiest to obtainthe virtual set size (vss) the resident memory size (rss)
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