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by İsmail Baydan · Published 07/08/2017 · Last modified 23/05/2018
In the old times of Unix and BSD where Windows was not born the systems where very different. Computers where big and heavy but very weak according to these days. The use cases and system architectures was very different too. If we need to connect a system we generally need...
Blog / CentOS / Debian / Fedora / Kali / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 11/07/2017
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...
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...
Blog / CentOS / Debian / Fedora / Linux / Linux / RedHat / Security / Ubuntu
by İsmail Baydan · Published 14/03/2017 · Last modified 30/11/2018
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
1 | permission:users/groups:origins |
Show Services Using Access.conf Allow Rule As...
Blog / CentOS / Debian / Fedora / Linux / Mint / RedHat / Security / Ubuntu
by İsmail Baydan · Published 13/03/2017 · Last modified 30/11/2018
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.
1 | chage [options] LOGIN |
Help
1 | $ chage -h |
Show Password And...
Blog / CentOS / Debian / Fedora / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 26/02/2017 · Last modified 29/11/2018
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...
Blog / CentOS / Debian / Fedora / Kali / Linux / Mint / RedHat / Ubuntu
by İsmail Baydan · Published 07/11/2016 · Last modified 23/11/2018
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...
CentOS / Database / Debian / Fedora / Kali / Linux / MariaDB / Mint / MySQL / RedHat / Ubuntu
by İsmail Baydan · Published 16/10/2016 · Last modified 16/11/2018
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...
