How to configure and Install kdump (crashkernel) in RHEL/CentOS 7

Aug 20, 2018

**Below list of topics are covered in this article** * [What is kdump?]({{< relref "how-to-configure-and-install-kdump-rhel7-crashkernel/index.md" >}}#Whatiskdump) * [Memory requirements]({{< relref "how-to-configure-and-install-kdump-rhel7-crashkernel/index.md" >}}#Memoryrequirements) * [Installing kdump]({{< relref "how-to-configure-and-install-kdump-rhel7-crashkernel/index.md" >}}#Installingkdump) * [Adding Boot Parameters]({{< relref "how-to-configure-and-install-kdump-rhel7-crashkernel/index.md" >}}#AddingBootParameters) * [Where to find generated vmcores?]({{< relref "how-to-configure-and-install-kdump-rhel7-crashkernel/index.md" >}}#Wheretofindgeneratedvmcores) *

How to check memory usage of an individual process or application/program in Linux

Aug 7, 2018

We know there are various tools available which can help you get the memory related information from the system, some of them are listed below [![Everything2Byou2Bmust2Bknow2Bbefore2Byou2Bstart2Bworking2Bwith2Bsystemd2B2528122529](Everything2Byou2Bmust2Bknow2Bbefore2Byou2Bstart2Bworking2Bwith2Bsystemd2B2528122529.webp)](Everything2Byou2Bmust2Bknow2Bbefore2Byou2Bstart2Bworking2Bwith2Bsystemd2B2528122529.webp) Report short summary of

How to enable or disable transparent (THP) and explicit (nr_hugepages) hugepage and check the status in Linux with examples (explained in detail)

Aug 5, 2018

**Below list of topics are covered in this article:** * [Types of HugePages]({{< relref "enable-or-disable-transparent-anon-hugepage-thp-check-status-examples-linux/index.md" >}}#TypesofHugePages) * [How to disable Transparent Hugepages on runtime]({{< relref "enable-or-disable-transparent-anon-hugepage-thp-check-status-examples-linux/index.md" >}}#HowtodisableTransparentHugepagesonruntime) * [How to disable Transparent Hugepages permanently using GRUB2]({{< relref "enable-or-disable-transparent-anon-hugepage-thp-check-status-examples-linux/index.md" >}}#HowtodisableTransparentHugepagespermanentlyusingGRUB2)

How to check the swap memory usage by a process in Linux

Jul 28, 2018

Earlier I had written an article on [**swappiness**]({{< relref "what-is-swappiness-and-how-do-we-change/index.md" >}}) and different commands to [**check memory usage per process**](https://www.golinuxcloud.com/check-memory-usage-per-perocess-linux/) on Linux here I will show you some of the methods which can

How to test ssh connection using bash script in Linux

Jul 22, 2018

There can be multiple scenarios due to which ssh connection may fail, some of them can be [![man working late](man-working-late.webp)](man-working-late.webp) * network issues * password incorrect * passphrase incorrect * and many