Memory On a Linux Server we hit with following Errors, page allocation failure: order:1, mode:0x20.  Workaround :  Swapper is u...

LVM : One or more devices used as PVs in VG  have changed sizes You must have come across this issue as an administrator.  You have ext...

1. Download the Firmware  from Dell Website. 2.  Download Following Firmware. File format: Update Package for Microsoft® Windows® 64-B...

SNMP showing wrong Disk Usage Values For larger Disks Nagios It's a Known Bug in SNMP. SNMP has limitation of 32byte size. ...

How to Redirect all http traffic to https in NGINX for a specific URL? Nginx is reverse proxy, web server, load balancer.  When you hav...

How to sudo oracle access for users in Linux? sudo is used to elevate the privilege of the user who is running the command. We do have si...

How to make static IP configuration in an ubuntu vm? 1. Edit the configuration file. vi /etc/network/interfaces 2. Put the Network...

Backing up the any Configuration item is something that you need to do utmost carefully. We do maridb replication. The replication stopped ...

Nagios is a free opensource monitoring system. We get this error on a Nagios rhel7 client, while configuring it for monitoring. The nrpe ...