Author: admin

Sound Blaster 16 WavEffects 4170

Sound Blaster 16 (June 1992), the successor to the Sound Blaster Pro, introduced CD-quality digital audio to the Sound Blaster line.

The Sound Blaster 16 WavEffects (CT4170) was released in 1997 as a cheaper and simpler redesign of the Sound Blaster 16. It came with Creative WaveSynth also bundled on Sound Blaster AWE64 Gold, a physical modeling software synthesizer developed by Seer Systems (led by Dave Smith), based on Sondius WaveGuide technology (developed at Stanford’s CCRMA).

The WavEffects line also supports CQM synthesis for Adlib/OPL compatibility.

More you can find in Wikipedia: https://en.wikipedia.org/wiki/Sound_Blaster_16

Here you can download Sound Blaster 16 manual:

sound-blaster-16-getting-startedDownload

Motherboard SFL 40V0 9247

Motherboard SFL 40V0 9247 designed in 1991.
Installed processor AMD Am386 SX-33

Back side:

On motherboard installed processor AMD Am386 SX-33 and Math co-processor: ULCI Systems 9244PA

The Am386 CPU is a 100%-compatible clone of the Intel 80386 design released by AMD in March 1991. Max. CPU clock rate 20 MHz to 40 MHz

More about this CPU you can find in Wikipedia: https://en.wikipedia.org/wiki/Am386

Motherboard Acorp 6VIA/ZX85

The 6BX85/6ZX85/6VIA85/6VIA85P is designed for the PC user’s who want many new key features processed by the fastest CPU in a economic package.

This motherboard:
New general CPU support :

– Intel Celeron (300AMHz–500MHz) processor.
– Intel Coppermine (500MHz–733MHz) processor.
– Socket: PGA370.
– CPU clock select support for 66/100MHz and up to 133MHz (6VIA 85P) CPU bus speed configuration.

Main features
Manufacturer ACORP
Mat chipset. Intel 440ZX
Socket 370 processor ppga socket
At board format, 22×22 cm

CPU support
Supports Intel Celeron Mendocino series processor types
Compatible processors
Bus frequency 66, 75, 83, 100 MHz
Multiplication is defined by the processor

Memory Support
Number of Simm/DIMM 0/2 slots
Max RAM 512 MB

Disk System
Support UDMA / 33 Yes
Slots for installing expansion cards
ISA / PCI / AGP 2/3/1 slots

Other features
BIOS Award BIOS

How to start mining Monero

Monero is a private, decentralized cryptocurrency that keeps your finances confidential and secure.

To start using Monero go to official website: https://www.getmonero.org/ and download one of the available wallets.

Then download mining software Xmrig form official Github repository: https://github.com/xmrig/xmrig

Select mining pool on site: https://miningpoolstats.stream/monero

And read instructions how to configure miner for current mining pool.

How to install zsh on Debian, Ubuntu or Linux Mint

Zsh is a shell designed for interactive use, although it is also a powerful scripting language.

To install Zsh on Debian, Ubuntu or Linux Mint use command:

sudo apt install zsh

Next install “Oh My Zsh” – delightful, open source, community-driven framework for managing your Zsh configuration. Use command:

sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

If you want to change zsh theme go to: https://github.com/ohmyzsh/ohmyzsh/wiki/Themes

In order to enable a theme, set ZSH_THEME to the name of the theme in your ~/.zshrc

nano ~/.zshrc

Some themes need custom fonts, install it from git: https://github.com/powerline/fonts

git clone https://github.com/powerline/fonts.git --depth=1
cd fonts
./install.sh

KDE change application launcher

1. Download new application launcher from site: https://store.kde.org/browse?cat=398&ord=latest

2. Run command:

plasmapkg2 --install LauncherName.tar.gz

If you want to upgrade launcher to new version use command:

plasmapkg2 --upgrade LauncherName.tar.gz

3. Right click on Start Menu icon > Show alternatives > Select LauncherName

If you want to uninstall launcher use command:

plasmapkg2 --remove LauncherName.tar.gz

Setup Proxmox cluster

1. First download official ISO image from Proxmox website: https://www.proxmox.com/

2. Write ISO image to USB flash drive using program Etcher: https://www.balena.io/etcher/

3. Boot PC from USB drive and install Proxmox. If you have two hard drives you can use ZFS file system to create RAID array.

Now log in to Proxmox admin panel using Web-browser: https://server-ip-address:8006

After installation we need to upgrade our system. Proxmox based on Debian GNU Linus and it use Debian repositories but in free version of Proxmox we will have an error when we try to upgrade. We need to disable enterprise Proxmox repositories. Open file /etc/apt/sources.list.d/pve-enterprise.list and comment with symbol # first line with enterprise Proxmox repository.

nano /etc/apt/sources.list.d/pve-enterprise.list

Then we can update packages list and upgrade our system:

apt update
apt upgrade

After installation let’s configure Local storage.

In admin panel go to Datacenter -> Storage, select local-lvm storage and click Remove

After that go to your Node -> Shell and write next commands:

lvremove /dev/pve/data
lvresize -l +100%FREE /dev/pve/root

And the last command to resize our local storage to 100% is:

resize2fs /dev/mapper/pve-root

Done, now we can use 100% of local storage, installed in our server. If you click on local storage you can see entire size of hard drive.

To remove the “You do not have a valid subscription for this server” popup message while logging in, run the command bellow:

sed -Ezi.bak "s/(Ext.Msg.show\(\{\s+title: gettext\('No valid sub)/void\(\{ \/\/\1/g" /usr/share/javascript/proxmox-widget-toolkit/proxmoxlib.js && systemctl restart pveproxy.service

Restore MySQL database from files

If you have MySQL database files and you want to restore database on new server do next steps:

1. Stop MySQL server:

systemctl stop mysql

2. Copy all files of database to /var/lib/mysql directory;

3. Also copy files:

/var/lib/mysql/ibdata1
/var/lib/mysql/ib_logfile0
/var/lib/mysql/ib_logfile1

4. Change user and group of all files in directory /var/lib/mysql to mysql:mysql:

chown -R mysql:mysql .

5. Change permission of files in directory /var/lib/mysql to 660

find . -type f -print0 | xargs -0 chmod 660

6. Start MySQL server:

systemctl start mysql

To restore database from SQL dump use command:

mysql -u [user] -p [database_name] < [filename].sql

Node.js – Lesson 5: Create Web-server application

First create file app.js:

const express = require("express");
const app = express();
const port = 8000;

app.listen(port, () => {
    console.log("Server work on "+port); 
});

In this code we require Express framework that provides a robust set of features for web and mobile applications. Define class app – our main application class and port – default server port.

We can start our server using command:

npm run start

But now our server can not do nothing, ot only write in console text: “Server work on port 8000“. Let’s create routing and say our server how to work with Url and write text to Web-browser.

First create folder “routes” and file “routes/index.js” with code:

const mainRoutes = require('./main');

module.exports = function(app) {
    mainRoutes(app);
}

Now create file “routes/main.js“:

module.exports = function(app) {
    app.get('/', (req, res) => {
        res.end('main');
    });
}

And the last – in file “app.js” require our routes – before app.listen insert this command: require(“./routes”)(app);

const express = require("express");
const app = express();
const port = 8000;

require("./routes")(app); // require /routes/index.js 

app.listen(port, () => {
    console.log("Server work on "+port); 
});

Start program in development mode:

npm run dev

Run Web-browser and open http://localhost:8000:

Similarly you can create /about, /contact or any other route on your NodeJS Web-site.