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 ...

cloud mining-Облачный майнинг

 Having figured out how mining works, you can try another method that is available to almost everyone and has a minimum entry threshold. The advantages of the technique are that there is no need to buy expensive equipment, set it up and endure a high noise level.


All you need for mining in the "cloud" is a regular PC, even without discrete graphics, and instructions:


Find the optimal coin and cloud service for mining.

Select the calculation algorithm and power.

Choose a rental period - on average, about 1 year.

Pay rent and commission.

Periodically check the receipt of charges for mining.

After the completion of the contract, decide whether to switch to another service and tariff or stay on these.

The disadvantage of cloud mining of cryptocurrencies is the inability to independently control the process and the possibility of encountering scammers. Therefore, a beginner and even an experienced miner should carefully select services. And in 2021, among the best options you can find such sites:


Shamining, for mining BTC;

ECOS, for Bitcoin mining;

BeMine - for mining Bitcoin, Zcash and Ethereum;

Genesis Mining, for mining a variety of cryptocurrencies, from Bitcoin and Dash to Zcash and Litecoin.

The duration of the average contract is 1 year. Almost all cloud services have such offers. But you can find rental options for 180 days (ECOS) and 2 years


(Genesis Mining), and for 8 months (BeMine). But it is worth considering - the longer the contract, the more the miner will have to invest.