Category: HOW TO

The DNS (Domain Name System) is used to determine which IP belongs to the required domain on the Internet. When a program needs to access the site by its domain name, the operating system sends …

To access the MySQL or MariaDB database, you need to enter a username and password. During installation, a root user account is automatically created, which is an analog of superuser in Linux for MySQL. It …

User groups are used to configure file system access of the operating system. Since in Linux all objects of the OS are files, then with the help of groups you can configure or restrict access …

The Linux operating system was originally created as a multi-user system. To control access rights for each user, three flags are used: read, write and execute. But this was not enough, so Linux user groups …

As known, in Debian/Ubuntu Linux, it is possible to remove package with remove and purge command. purge command removes package and all its files from the system, including configuration files too. remove command removes only binary files. …

Each process in the operating system has its own unique identifier, by which you can get information about this process, as well as send it a control signal or complete it. In Linux, name of …

At first, it’s a good idea to have some iptables rules to save and then reload. For example, let’s create following rules: $ sudo iptables -F $ sudo iptables -X $ sudo iptables -P OUTPUT …

When you are using GoDaddy hosting you can get errors with CodeIgniter framework URLs and routers. After research I did following configuration, and everything is working fine for me. First I have changet this valiables …

Problem: When You use lftp, You maybe get following error: Fatal error: Certificate verification: Not trusted Solution: Disable certificate verification in lftp: $ vi ~/.lftp/rc set ssl:verify-certificate no

Here is oDesk Unix Test with score 3.40 of 5 (Passing Score was 2.50). August, 2012 Attention: For use only educational purposes! Topic Correct Answers(%) Basic Concepts and Administration 67% Commands 86% File Commands 75% …