How to connect to PostgreSQL database using pgAdmin 4?

 How to connect to PostgreSQL database using pgAdmin 4? In order to set up a connection to the PostgreSQL database, run pgAdmin 4, for example, from the Start menu. As a result, pgAdmin 4 will start. Then click the menu "Object->Create->Server" or right-click on the item "Servers" and select "Create->Server". The server connection settings window will open. On the General tab, we invent and enter the name of our server in the Name field. On the Connection tab, enter the server IP address, username, password, and if you want, you can check the “Save password?” to save the password and not to enter it every time you connect. If the standard port (5432) of the PostgreSQL server has been changed, then you also need to change it here. Press the "Save" button. Note! The PostgreSQL server must be installed, configured and running. We considered an example of installing and configuring PostgreSQL DBMS on Linux Debian in the material “Installing ...

File server - file

 File server - file




File servers exist on the network to store large amounts of information. In other words, it is a large disk connected to the network. To exchange files between an FTP client and a file server, the File Transfer Protocol (FTP) of the same name is used. It is this protocol that accounts for the largest part of the traffic in networks. with it we can upload documents, movies, pictures, software distributions, music files. It is by this protocol that we can: load the pages of our site on the Internet, connect computers to each other to exchange files (we open file sharing). The file server provides for user authorization to limit the use of resources, if necessary. As a rule, a do-it-yourself file server does not depend much on the power of the server itself (processor frequency, RAM size) and an outdated computer with increased disk space is quite suitable for its role. It is the HDD (hard disk) that is the most integral and main part of our file server, as a rule, there is more than one HDD in such servers. Of great interest is the presence of support for a RAID array, it is this function that allows you to make an independent copy of your data, and significantly reduces the possibility of losing it. This type of protection is widely used not only on file servers, but also in many others, but taking into account the fact that the FTP protocol is also used on others, as the main file exchange protocol in most servers. The presence of a RAID array is a guarantee of the safety of our data.

game server

The structural scheme of the network is no different from the structure of the game server and our connection with the file server can also work both in the local and Internet networks.