Solution to access problems on some sites on Türkiye Location VPS.

 

 

Install DNSCrypt-Proxy (DEBİAN)

debian testing

sudo apt update && \
sudo apt install -t testing dnscrypt-proxy
debian unstable

sudo apt update && \
sudo apt install -t unstable dnscrypt-proxy

Install DNSCrypt-Proxy (UBUNTU)

DNSCrypt-Proxy 2.x is included in Ubuntu 18.10+ repositories, install it with

sudo apt install dnscrypt-proxy

 

Copy the example configuration files to /etc/dnscrypt-proxy/

/etc/dnscrypt-proxy/ is where the Debian/Ubuntu package expects the dnscrypt-proxy configuration to be.

So, type the following commands to copy the examples to that directory:

sudo cp /usr/share/doc/dnscrypt-proxy/examples/* /etc/dnscrypt-proxy/
cd /etc/dnscrypt-proxy
cp example-dnscrypt-proxy.toml dnscrypt-proxy.toml

The last step is important. You should overwrite the existing dnscrypt-proxy.toml with the example.

Check if the configuration is correct

Type:

cd /etc/dnscrypt-proxy
dnscrypt-proxy -check

Install the service

If everything appears to be working fine, stop the proxy by hitting Ctrl+C and/or by closing the terminal window.

Now, it’s time to configure it to start automatically at boot:

cd /etc/dnscrypt-proxy
sudo dnscrypt-proxy -service install
sudo dnscrypt-proxy -service start

Whenever you change the configuration, the service can be restarted with the following command:

sudo dnscrypt-proxy -service restart

Note that if you ever want to stop dnscrypt-proxy from running at boot (obviously, don’t do it now as the next steps wouldn’t work), type:

sudo dnscrypt-proxy -service stop
sudo dnscrypt-proxy -service uninstall

Configure the systemd DNS to use dnscryt-proxy

Type:

sudo nano /etc/systemd/resolved.conf

Locate the [Resolve] section. There should be a line like the following:

#DNS=

Replace it with:

DNS=127.0.0.1

Save the file, and restart the systemd DNS cache:

sudo systemctl restart systemd-resolved

Done! Your system is now using dnscrypt-proxy to secure and anonymize your DNS traffic.

Guide to Centos Installation and Root Access on CloudStack

Introduction After installing the Centos operating system on CloudStack, you usually log in with the username centos. However, in some cases, root access may be required. This guide explains step-by-step how to log in to the system with the centos user, obtain root access, and optionally create a password for the root user.

Step-by-Step Guide

  1. Log in with the Centos User:

    • Connect to the Centos server you created in the CloudStack console using SSH or VNC.
    • Log in using the username centos and your password.

  2. Root Access with the Sudo Command:

    • Run the following command in the terminal:
      Bash

      sudo -s
    • This command gives you root privileges. You can now run commands as the root user.

  3. Create a Root Password (Optional):

    • Why Create a Root Password: For security reasons, it’s important to create a password for the root user. This prevents unauthorized access to the root account.
    • Create Password:
      Bash

      passwd

      This command will prompt you to enter a new password. Make sure you create a strong password.

  4. Direct Login with the Root User (Optional):

    • SSH Configuration:
      • Open the SSH configuration file:
        Bash

        nano /etc/ssh/sshd_config
      • Find the following line and change the value to yes: 
        PermitRootLogin yes
      • Save the file by pressing Ctrl+X, then Y, and Enter.
      • Restart the SSH service:
        Bash

        systemctl restart sshd
    • You can now log in directly to the system using the root username and the new password you created.

Important Notes:

  • Security: Be careful with root privileges. Incorrect commands can crash your system.
  • Sudoers File: If you have multiple users on your system, you can edit the sudoers file to define which users can run which commands.
  • SSH Key: We recommend using SSH keys for a more secure login.
  • Strong Password: Create a strong and unique password for the root user.

What is VPS Hosting?

VPS (Virtual Private Server) is a type of hosting where a physical server is divided into multiple virtual servers. Each virtual server has its own operating system, RAM, CPU, and disk space, as if it were a dedicated physical server.

Why choose VPS Hosting?

  • Flexibility: Offers more control than shared hosting. You can install your own operating system, install your own software, and have full root access to your server.
  • Performance: You get more stable performance as resources are dedicated to your virtual server, unlike shared hosting environments where performance can be affected by other sites.
  • Security: In shared hosting environments, security vulnerabilities can affect all sites. In VPS, your virtual environment is isolated, so the security risk is lower.
  • Scalability: You can easily increase or decrease your resources as needed. This allows you to scale your resources as your website grows.

How does VPS Hosting work?

A physical server is divided into multiple virtual servers using virtualization technology. Each virtual server acts like a separate computer running its own operating system and independent of other virtual servers.

Who is VPS Hosting suitable for?

  • Medium-sized businesses: Ideal for medium-sized businesses looking for more control and flexibility.
  • Developers: Provides a reliable and flexible environment for developing and testing applications.
  • High-traffic websites: A suitable option for high-traffic websites that want to overcome the limitations of shared hosting.
  • E-commerce sites: Ideal for e-commerce sites with high security and performance expectations.

Advantages of VPS Hosting:

  • Control: You have full control over your server.
  • Performance: Higher performance and lower latency.
  • Security: Higher level of security.
  • Flexibility: You can customize it to your needs.
  • Scalability: You can easily scale up or down.