Reduce LVM based XFS filesystem in linux.
In linux, we can’t reduce the XFS filesystem in general. And to reduce any partition, we need to take backup of data at some other path and then re-create the...
Tag: centos
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How to disable/enable multi threading from OS in Linux ?
Today in this article, we will see how to disable or enable CPU multi threading from OS in Linux. 1. Check Current Multi-threading Status. [root@ngelinux ~]# cd /sys/devices/system/cpu/smt [root@ngelinux smt]#...
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How to increase DefaultTasksMax in RHEL/CentOS 8 onwards ?
Let us see how to increase the DefaultTasksMax in RHEL, or CentOS 8 Operating system onwards. The default maximum tasks in RHEL/CentOS8 is quite low when you run any database...
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How to download only RPM with dependencies using yum ?
In this article, we will see how to download rpm packages with dependencies using yum. The trick is very useful especially for servers where the repo is not reachable. Lets...
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How to set timezone on RHEL Linux Host from RHEL 7 onwards ?
Lets see how to set timezone on Redhat Linux from RHEL 7 onwards. Earlier we used to link the timezone files. However now we can do it via a command...
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Solved: root is not allowed to run sudo on ngelinux. This incident will be reported.
In this post, we will see one of the common error while using sudo and how to fix that. I. Problem [root@ngelinux bin]# sudo -u mysqld sh /monitor/mysqld/scripts/mysqld_NGEL.sh root is...
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How to reinstall an installed package using YUM/DNF in linux ?
In this post, we will see how to reinstall any installed package in Linux using Yum or dnf. 1. Check out the package and version available to install/reinstall. [ngeroot@ngelinux01 grub2]#...
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How to remove a directory “-p” in Linux ?
In this post, lets see how to remove a file or directory starting with “-“. This is bit tricky as you can’t remove it directly. Lets check this out. 1....
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How to extract private key- encrypted or decrypted from PFX certificate file ?
Today in this post, we will see how to extract the private key from PFX certificate file. We will first extract the encrypted key and then we will extract the...