First you need to download the latest BIOS firmware from the official site support.hpe.com, in the search we will indicate “HPE ProLiant DL180 G6 Server”.
Continue reading “BIOS update on the HP ProLiant DL180 G6 server”Zabbix notifications by phone via Asterisk
One night at the station, the air conditioners turned off and the temperature started to rise, naturally, I received email notifications on the phone, but since it was night, I only saw them in the morning, so it was necessary for such an emergency to quickly make the possibility of phone call notifications.
Continue reading “Zabbix notifications by phone via Asterisk”Shredding data with Shred
Shred – allows you to overwrite the specified file with random data in order to ensure, if necessary, the more difficult process of recovery or the impossibility of data recovery.
On some file systems, data deletion is not guaranteed and the use of shred may not be effective.
The list of possible arguments:
Help program:
--help man shred
Using wipe in Linux
wipe – utility for secure full erasing of information.
Install command in Linux Ubuntu/Debian:
sudo apt-get install wipe
I will describe some startup keys:
-f Disable confirmation requests.
-r Recursively Removes all subdirectories, symbolic links are not touched.
-c If the rights of the directory are read-only, then they will be changed to write.
-i Detailed information mode.
-s Quiet mode, most messages are not displayed.
-q Fast mode, directories are overwritten with random data 4 times.
-Q The number of rewrite cycles. Standard 4.
-a Stop execution on error.
-R Install a random device.
-l
-D Follow symbolic links, they don’t get touched by default.
-v Displays the version of the program.
-h Display help.
Why in VirtualBox you cannot choose 64-bit versions
I noticed somehow on one installed VirtualBox that when adding a workstation, you can select the type of system only 32-bit.
To solve this problem, first of all you need to restart your computer and go into the BIOS when you turn it on (most often by pressing the DEL or F8 key), there you can activate the “Intel (R) Virtualization Technology” function (the name may differ slightly usually located in the Advanced section and the CPU), in my case it was turned off, and on many computers I noticed that it was disabled as standard.
To enable, change from Disable to Enable, save the settings and exit the BIOS (by selecting Save & Exit or similar).
After that, VirtualBox has the opportunity to choose the type of 64-bit systems.
It may also be necessary in the “Control Panel” to open the “Uninstall a program” button on the left “Enable or disable Windows components” and uncheck the “Hyper-V” box if it is installed.
Done.
Install phpMyAdmin
phpMyAdmin is a web application written in PHP that allows you to administer MySQL databases through a browser.
The easiest way to install phpMyAdmin is to download the archive with the latest version from the official website www.phpmyadmin.net and unpack it into the desired www directory, then you can open http://HOST/phpmyadmin/setup/ in the browser and follow the instructions. After that, move the config.inc.php file to the phpmyadmin root directory and close access to /setup/ or delete it altogether.
Continue reading “Install phpMyAdmin”
Home, End, Page Up and Page Down keys on a MacBook
I will give examples of using some keys in MacOS on a MacBook that are not on the keyboard:
PageUp – fn + up arrow
PageUp (in the browser) – Space
PageDown – fn + arrow to down
PageDown (in the browser) – Shift + Space
Continue reading “Home, End, Page Up and Page Down keys on a MacBook”
How to change the welcome screen image in Windows 7
To change the welcome screen image in Windows 7, you must:
1) Open the registry editor, to do this, click the “Start” menu and in the “Run” line we write “regedit” and press the “Enter” key.
2) In the registry editor that opens, right-click on the “HKEY_LOCAL_MACHINE” line, select “Find” and in the search bar type “OEMBackground”, click “Find Next”.
Continue reading “How to change the welcome screen image in Windows 7”
Installing and using Netcat
Netchat is a utility that allows you to establish a TCP/UDP connection and perform data transfer.
Continue reading “Installing and using Netcat”The solution of the error “d3dx9_31.dll was not found” when running games
This error may occur if the computer has an old version of DirectX installed, so it is solved simply by downloading and launching a web installer that automatically updates DirectX via the Internet to the latest version.
Download the DirectX web installer from the link below:
https://www.microsoft.com/en-US/download/details.aspx?id=35