Tag: port

OpenVPN

Forward ports to OpenVPN clients in Centos

1) iptables -A FORWARD -p tcp -i eth0 -d client_ip_address –dport port_number -j ACCEPTiptables -A FORWARD -p tcp -i eth0 -d client_ip_address –dport port_number -j ACCEPT 2) iptables -t nat -A PREROUTING -p tcp -d server_public_ip_address –dport port_number -j DNAT –to-destination client_ip_address:port_numberiptables -t nat -A PREROUTING -p tcp -d server_public_ip_address –dport port_number -j DNAT –to-destination …

Linux

shimmer – port knocking alternative

In computer networking, port knocking is a method of externally opening ports on a firewall by generating a connection attempt on a set of prespecified closed ports. Once a correct sequence of connection attempts is received, the firewall rules are dynamically modified to allow the host which sent the connection attempts to connect over specific …

Network, Port Scanning, Tools

Top 5 Free Port Scanners

1. Nmap Nmap (“Network Mapper”) is a free and open source (license) utility for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime. Nmap uses raw IP packets in novel ways to determine what …

Metasploit

Port scanning with Metasploit auxiliary

Although nmap is the de-facto port scanner and has become a synonym to port scanning, Metasploit offers its own port scanners. These port scanners are available in auxiliary modules. In msfconsole execute search portscansearch portscan to see a list of all available portscanners in MSF. To select one of the available port scanners, let’s say …

Metasploit, NMAP

Port Scanning with Nmap and Metasploit

Port Scanning Nmap is a free and open source tool for network discovery and security auditing. Nmap is able to determine what hosts are available on the network, what operating systems and services are running on target hosts, identify the type of the firewalls that are in use, and dozens of other capabilities. It is …

Penetration Testing, Tools

Super fast TCP port scanner

strobe is a network/security tool that locates and describes all listening tcp ports on a remote host or on many hosts in a bandwidth utilisation maximising, and process resource minimising manner. strobe approximates a parallel finite state machine internally. In non- linear multi-host mode it attempts to apportion bandwidth and sockets among the hosts very …

Apache, XAMPP

Change Apache Ports in XAMPP

Change port for Apache 1. Open x:xamppapacheconfhttpd.conf file for edit. 2. Find Listen 80 and change it to Listen 8081. 3. Find ServerName localhost:80 and change it to ServerName localhost:8081. 4. Save the file. 5. Restart Apache.   Change port for SSL 1. Open x:xamppapacheconfextrahttpd-ssl.conf file for edit. 2. Find Listen 443 and change it …