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mathematica 11 mac os catalina issue fix

Apple imac Catalina OS issue fix it..   Apple has latest macOS Catalina 10.15, and most of users would like to install the newest macOS on their Mac desktop Laptop. some of users are are suffering from many annoying Catalina problems. One common macOS Catalina problem that people have encountered is that macOS 10.15 fails to download,…

Linux Cent OS

fix unable to lock the administration directory (/var/lib/dpkg/) is another process using it

How to”Fix” unable to lock the administration directory (/var/lib/dpkg/) is another process using it on Ubuntu  If you are facing this kind of error “unable to lock the administration directory (/var/lib/dpkg/) is another process using it” on linux Ubuntu and looking for solution to fix it then you can just follow few easy steps to…

HPC

High Performance Computing Job Scheduler

In ‘High performance computer (HPC)’ resource environment master nodes is responsible to receive computational jobs submitted by users and transfer it to any FREE state compute nodes, How HPC knows which node is free which node is in use so ‘HPC job scheduler‘ helps HPC machine this task, There are several job scheduler available in the…

Linux Cent OS

DHCP server installation on Linux cent OS

The DHCP (Dynamic Host Configuration Protocol) is a network protocol works on “Application layer” on OSI Model. DHCP use to assign an IP (Internet Protocol) address to the clients and establish network connection between server and client. DHCP works on UDP. DHCP server works on port 67 allow in server firewallDHCP Client works on port…

Networking

How to configure IP on extreme switch commands

How to configure an IP address on extreme network switch. The management interface of an EXOS extreme switch Configure an IP address on the management interface of an EXOS switch. The management interface is a port marked “management” on the back side of the switch.Environment     EXOS AllProcedure          EXOS handles the management interface as its own VLAN in VR-Mgmt.You can configure an…