Network and security specialist focused on VPN protocols, proxies and server hardening. Cooper spends his days breaking and fixing tunneling setups (WireGuard, V2Ray, Xray) so readers can follow battle-tested configurations instead of guesswork.
567 posts
What you will read?1 How to Change SSH Port in Manjaro2 Restarting the SSH Service3 Testing the New SSH Port Changing the default SSH port is an important security measure that many Linux users adopt. By default, SSH runs on port 22, which makes it a common target for attackers looking for vulnerabilities. Changing the…
What you will read?1 Updating the SSH Configuration File2 Configuring Firewall Rules for SSH Port Change in CentOS 73 Configuring SELinux for the New SSH Port in CentOS 74 Testing the New SSH Port in CentOS 75 Restarting the SSH Service in CentOS 7 SSH (Secure Shell) is a protocol widely used for remote system…
What you will read?1 Steps to Change the SSH Port2 Test the New SSH Port3 Verify and Secure the Configuration4 Firewall Configuration5 Testing and Verification Changing the default SSH port is a crucial step in enhancing server security. The default port, 22, is often targeted by automated attacks and brute force attempts. By switching to…
What you will read?1 Using the netstat Command2 Checking with PowerShell3 Using Telnet4 Verifying Through Windows Firewall5 Using Third-Party Tools6 Checking with netsh Utility Port 443 is perhaps one of the most used ports on the web. It supports secure communications across the internet as it operates via HTTPS. It is worth mentioning that if…
What you will read?1 Prerequisites2 Steps to Change the SSH Port3 Applying the Changes4 Troubleshooting Changing the default SSH port in Kali Linux is a simple yet effective security measure to protect your system from unauthorized access. By default, SSH uses port 22, which is widely known and often targeted by automated attacks and bots.…
What you will read?1 Preparing Your System2 Configuring SSH Access Secure Shell (SSH) is a critical tool for managing and accessing remote servers securely. It provides an encrypted communication channel, ensuring data privacy and integrity while allowing users to execute commands, transfer files, and manage systems over a network. Widely used by system administrators, developers,…
What you will read?1 Preliminary Steps2 Commands for Locating and Editing sshd_config3 Updating the Port Number4 Benefits of Changing the Default SSH Port5 Troubleshooting Common Issues Secure Shell (SSH) is a widely used protocol for secure remote management of servers and devices. By default, SSH operates on port 22, which makes it a common target…
What you will read?1 Methods of Blocking Ports in MikroTik2 Blocking Specific Ports vs. Blocking All Ports in Mikrotik3 Common Troubleshooting for Blocked Ports in Mikrotik Blocking ports is a crucial security measure that can significantly enhance network security. By restricting access to specific ports, you can prevent unauthorized access, mitigate the risk of cyberattacks,…
What you will read?1 Using netstat2 Using ss3 Using lsof4 Using nmap5 Using netcat (nc)6 Using GUI Tools7 Troubleshooting Common Issues (English) In the context of computer networking, an open port refers to a network port that is actively accepting connections or listening for incoming traffic. These ports serve as communication endpoints, enabling various services…
