How To Enable and Install EPEL Repo on CentOS 8
How To Enable and Install EPEL Repo on CentOS 8 The Process is fairly simple. So not wasting anymore time intro let's go to t…
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How to Reset/Recover/Forget Root Password in CentOS/RHEL/Fedora and VM/KVM
Note : Take Backup of your data before you proceed Method 1 - (CentOS/RHEL/Fedora) Step1 :- Restart the Machine Step2 :- Press &q…
-bash: nslookup: command not found in rhel, centos and Ubuntu
[root@monitor ~]# nslookup <FQDN> -bash: nslookup: command not found The Linux Install did not come with bind-utils pacakg…
What is Swapiness and How to Change it?
What is Swapiness and How to Change it? Swappiness is a property for the Linux kernel that changes the balance between swapping o…
SSSD couldn't load the configuration database [5]: Input/output error.
Issue : Cannot start ssd on rhel7 server. In /var/log/messages: sssd: SSSD couldn't load the configuration database [5]: Inp…
Logical Volume Error: mount: special device /dev/mapper/DBBACKLOGS-archlogs1 does not exist
LVM Logical Volume Error: mount: special device /dev/mapper/DBBACKLOGS-archlogs1 does not exist CentOS After a storage issue when…
How to Install GNOME Desktop On RHEL/CentOS 7?
How to Install GNOME Desktop On RHEL/CentOS 7? 1. Configure the Repository or register to subscription-manager. 2. Install the GN…
RPM command explained in CentOS/RHEL/Fedora
RPM : Redhat Package Manager RPM command is used for installing, uninstalling, upgrading, querying, listing, and checking RPM pac…
Root CA and Wildcard Certificate Generation in CentOS/RHEL 6&7
Hi folks ! this is one of the best method to create your own RootCA server and generating self-signed wildcard certificates.…
How to disable SSH root login Linux
Allowing SSH remote login from root user is dangerous for your Linux server. So when you install a server you first need to disab…