Архів автора: reverse

RDAP: Replacement for Whois service

From documentation The Registration Data Access Protocol (RDAP) is the successor to WHOIS. Like WHOIS, RDAP provides access to information about Internet resources (domain names, autonomous system numbers, and IP addresses). Unlike WHOIS, RDAP provides: Simple installation on Ubuntu with Golang package And can be used as Whois Or can be installed by Snap

Mongo: Force move Secondary to Primary

If happen that your cluster is degraded, for example, two nodes dead in PSS configuration, and the last node is in status Secondary. Then we can force move this node to Primary Remove old nodes maybe change the priority on some members And force apply changes on Secondary

Run CentOS 8 in rescue mode to change root password

In case you forgot the root password or can’t login to the CentOS, we can start OS by editing kernel boot options in Grub When the system is booting press any key (left, right, top, down) on Grub screen Select the kernel you need to run and press ‘e’ to open the editor