jayvi

PPTP VPN on Ubuntu 12.04 Example

Here is a quick tutorial to set up a basic PPTP VPN server on Ubuntu 16.04.

Install Necessary Packages

                          sudo apt-get install ppp pptpd

Configure PPTP IP Ranges on the Server

jayvi

Open terminal :
ssh -D12345 root@123.123.123.123

Open a new Terminal and run
/Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --proxy-server=socks5://127.0.0.1:12345 --user-data-dir="/tmp/james_bonds_browser"

jayvi

#
# The MySQL database server configuration file.
#
# You can copy this to one of:
# - "/etc/mysql/my.cnf" to set global options,
# - "~/.my.cnf" to set user-specific options.
#
# One can use all long options that the program supports.
# Run program with --help to get a list of available options and with
# --print-defaults to see which it would actually understand and use.

jayvi

# Optimized my.cnf configuration for MySQL/MariaSQL
#
# by Fotis Evangelou, developer of Engintron (engintron.com)
#
# === Updated December 2018 ===
#
# The settings provided below are a starting point for a 2GB - 4GB RAM server with 2-4 CPU cores.
# If you have less or more resources available you should adjust accordingly to save CPU,
# RAM and disk I/O usage.
# The settings marked with a specific comment or the word "UPD" after the value

jayvi

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

jayvi

You want to run a simple local HTTP Server on your local PC. You want to test your html, js,… files locally.
Here is the easiest way to do it.

1. Using SimpleHTTPServer
Create your test folder, move all your html, js files to that folder.

$ mkdir test
$ cd test
Check your python version

jayvi

# Package generated configuration file
# See the sshd_config(5) manpage for details

# What ports, IPs and protocols we listen for
Port 22
# Use these options to restrict which interfaces/protocols sshd will bind to
#ListenAddress ::
#ListenAddress 0.0.0.0
Protocol 2
# HostKeys for protocol version 2

jayvi

function validatePhoneForE164(phoneNumber) {
    const regEx = /^\+[1-9]\d{10,14}$/;

    return regEx.test(phoneNumber);
};

validatePhoneForE164('+12125551212'); // true
validatePhoneForE164('12125551212'); // false
validatePhoneForE164('2125551212'); // false
validatePhoneForE164('+1-212-555-1212'); // false

jayvi

function checkPhone(phone) {
    var phoneVal = phone.val();
    var reg = /^(\s*)?(\+)?([- ():=+]?\d[- ():=+]?){10,14}(\s*)?$/;
    console.log(reg);
    
    if (!reg.test(phoneVal)) {
        phone.addClass("error");
        return false;
    } else {
        phone.removeClass("error");

jayvi

Let's say we can a blog hosted as Wordpress.com but visible on our custom domain in subpath due to SEO. WordPress.com supports changing domain/subdomain but not path.

We could either make our own installation, change hosting provier or make nginx proxy with URL rewrites.

• WP blog: https://example.wordpress.com/
• Desired site: http://example.com/blog/

This tutorial is inpsired by http://marsbard.github.io/2016-07-30-replace-urls-behind-nginx-reverse-proxy/.