Author Archives: dmitriano

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17
01
20
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Oracle Database 19c auditing with Multitenant Architecture

Posted by | Oracle |

First I installed Oracle 19c in Docker container , enabled unified auditing, and created multiple pluggable databases:

export ORACLE_SID=ORCLCDB
cd $ORACLE_HOME/bin
#connect to root container
./sqlplus / as sysdba

CREATE PLUGGABLE DATABASE testpdb1 ADMIN USER admin1 IDENTIFIED BY dbpasswd1
    FILE_NAME_CONVERT=('/opt/oracle/oradata/ORCLCDB/pdbseed', '/opt/oracle/oradata/ORCLCDB/testpdb1');

Pluggable database created.

CREATE PLUGGABLE DATABASE testpdb2 ADMIN USER admin2 IDENTIFIED BY dbpasswd2
    FILE_NAME_CONVERT=('/opt/oracle/oradata/ORCLCDB/pdbseed', '/opt/oracle/oradata/ORCLCDB/testpdb2');

Pluggable database created.
(more…)
10
01
20
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Installing Oracle Database 19.3 in a Docker container on Ubuntu Server 18.04

Posted by | Oracle, Ubuntu |

First I installed Ubuntu Server 18.04 as a Hyper-V machine on Windows 10.

While creating the virtual machine I selected Generation 1, because Generation 2 resulted in some strange effects.

Then I created a separate user with sudo permission:

sudo useradd -d /home/singh -m --shell "/bin/bash" singh
sudo passwd singh
sudo usermod -aG sudo singh
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18
12
19
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How to prevent a Windows 10 machine from auto-locking

Posted by | Windows |
  • Right-click the Start button.
  • Click Search.
  • Type gpedit and hit Enter on your keyboard.
  • Double-click Administrative Templates.
  • Double-click Control Panel.
  • Click Personalization.
  • Double-click Do not display the lock screen.
  • Click Enabled.
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16
12
19
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Inegrating Oracle Database 18 with MS Active Directory

Posted by | Oracle |

I configured DNS on my Windows Server 2016 (takes some time, probably 15 minutes):

ipconfig /registerdns
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13
12
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Creating Android application icons

Posted by | Android |

There are the key links to the docs:

At the moment of writing this post application icons were of the following sizes:

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08
12
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Mining Monero (XMR) with RandomX on Windows 10

Posted by | XMR |

Enable huge pages by running gpedit.msc and adding the current user to Local Computer Policy->Computer Configuration->Windows Settings->Security Settings->Local Policies->User Rights Assignment->Lock pages in memory:

and logging out of current Windows session for changes take effect.

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06
12
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How to buy and sell crypto with RUB on Binance

Posted by | Cryptocurrencies |

Binance has Buy and Sell Cryptocurrency page:

and has Russian Ruble (RUB) Fiat Gateway Through Advcash.

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02
12
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Mining Raven Coin (RVN) with X16Rv2 on HiveOS and Windows 10

Posted by | RVN |

HiveOS Web UI has Setup Minder Config button where I selected X16Rv2 algorithm for T-Rex miner:

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10
11
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My Android QT app crashes at qt_qFindChild_helper.

Posted by | Android, QT |

I have an Android QT app with more than has 14K active users at the moment of writing this post. The app is relatively stable, its crash rate is 0.34%:

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15
10
19
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Binding Docker container ports to the host on Ubuntu 18.04 inside Hyper-V on Windows 10

Posted by | Ubuntu, Windows | Tagged , |

The binding did not work for me until I switched from Internal Virtual Switch to External Virtual Switch and while switching I were getting the following error:

[Window Title]
Virtual Switch Manager for MY-MACHINE

[Main Instruction]
Error applying Virtual Switch Properties changes

[Content]
Failed while adding virtual Ethernet switch connections.

[Expanded Information]
External Ethernet adapter 'Realtek PCIe GBE Family Controller' is already bound to the Microsoft Virtual Switch protocol.

until I switched Hyper-V Extensible Virtual Switch off on my network adapter properties page (after I created External Virtual Switch it switched on back):

(more…)
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