Daylight Saving Time happens in multiple countries across the globe and in many places the DST keeps changing every couple of years. IMPORTANT NOTE: If your system is configured with online NTP pool servers then
In my last article I had shared steps to limit CPU count on your multi core Linux system and to assign a service to a specific CPU core in CentOS / RHEL 7 Hyper threading
In this article I will show you two methods to migrate a logical volume /dev/rhel/lv1 from one disk to another without reboot assuming you have the extra disk already available on your system. Below steps
In my another article I have shared the steps to configure SSH port forwarding and tunnelling in Linux Below are some of the selected arguments which can be used in sshd_config to harden the ssh
While working on NTP server on my setup I realised that in Red Hat Enterprise Linux when we a service restart for NTPD or chronyd, the local time does not syncs with the NTP server
This article is little outdated as with RHEL 7 now you do not need to copy the bind DNS configuration files into the chroot environment. Step-by-Step Tutorial: Configure DNS Server using bind chroot (CentOS/RHEL 7)
In my last article I have given an overview of systemd with examples. If your service is a multithread service then it may run on multiple cores based on the availability of the threads and
There are three different methods using which the number of CPU can be limited in Red Hat Enterprise Linux 7. Method 1: maxcpus Using maxcpus parameter : Add kernel parameter maxcpus=N in /boot/grub2/grub.cfg. IMPORTANT NOTE: