Linux, Windows, Security, Programming, Network Tutorials
In the old times of Unix and BSD where Windows was not born the systems were very different. Computers were big and heavy but very weak according to these days. The use cases and system architectures were very different too. If we need to connect a system we generally need TeleTYpewriter TTY. TTY provides a … Read more
Linux bash profile is used to set some default or startup configuration about user accounts and bash. We have previously examined the .bashrc which resides in user home directory. In this tutorial we will look the /etc/profile or bash_profile. Bash_profile will effect to the whole system configuration. Bash_Profile Bash profile can be printed or edited like below. … Read more
Linux have long history which starts with Unix operating system. Linux used a lot of aspect of the Unix operating system. One of those aspect was Graphical User interface with X server. X server mainly operates between operating system and user side. Desktop environments provides real GUI but uses X server to communicate with operating … Read more
access.conf is the configuration file used to logins to the Linux or Unix systems. This file is locate at /etc/security/ path. With this file logins of users, groups, hosts, tty, network are defined to allows or disallowed status. Each line specifies a rule. Syntax permission:users/groups:origins Show Services Using Access.conf Allow Rule As we stated before each line … Read more
chage is a tool and command used to change user password expiry information in Linux, BSD, Unix systems. With this command we can set password change time, lock status, activity or inactivity of the user account. Syntax We will use following syntax for chage command. chage [options] LOGIN Help $ chage -h Show Password And Related … Read more
Linux provides usermod command by default for the most of the distributions. This command is used to user modification. After user creation the user related information, values and policies can be changed with usermod command. In this tutorial we will look various features of usermod command with examples. Syntax Syntax of the usermod command is like … Read more
I have Linux servers. There is a lot of different remote connection services like ssh, telnet, vnc, X11, konsole etc. I want to learn who is logged currently. And get details like connection way, connection time IP address etc. These information may become very crucial. There different commands to get this information. w Command For … Read more
Mariadb is an open source database forked from another popular open source database MySQL. MariaDB developers are original developers of the MySQL. After Oracle get management of the MySQL project they become unhappy with the management of the Oracle and started MariaDB project. Latest available version for MariaDB was 10.1.18 as writing but we will … Read more