Install and use firewalld on Ubuntu
Firewalld is one of the Linux firewall management tool and it is available on the in the Ubuntu's default repositories, therefore it is available to
be installed from these repositories using the apt packaging system
.
How to fix apt lock-frontend error in Ubuntu
How to fix the E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
error.
How to change the hostname in Ubuntu
How to change hostname in Ubuntu. There are three options: temporary until the first restart and permanent by changing the hostname file or using command hostnamectl
ISO8583 flows, fields meaning and values
ISO8583 message flows, data elements values and meanings. Message flows examples, most used data elements and values.
Windows basics commands and tools for developers
Windows command prompt basics commands like ping, telnet, dir, cd, ipconfig and tools like Task Manager, Services, Registry.
How to prepare a Windows Java Development Machine
How to prepare a Windows Java Development Machine using Eclipse, NetBeans, Ant, Maven, MySQL, MongoDB, GIT, SVN.