Above all things, you have to know what port forwarding/port mapping is. Port forwarding refers to the mechanism of packets forwarding. Its essence is firewall's configuration strategy. But its function mainly focuses on packets forwarding, in order to achieve the purpose of operating specific packages (IP address parsing and filtering based on destination port number). As a consequence, it is generally taken out as an independent concept.
As a network or website administrator, most often we need know everything quite well about the LAN or even WAN our hosts lying in. For example: the name of each computer in local network, network card address, IP address, shared resource, open ports; look up WHOIS information such as domain name, host provider, DNS... about some website in detail. For these, IP-Tools can become a good assistant for our network/Internet management.
NETGEAR genie is a free cross-platform router managing, monitoring and repairing software. It enables you to easily make a remote access to your home router via PC or smartphone, so as to view and manage all devices connecting to your home network. And, it can automatically repair some common network problems.
With the development of mobile devices and network, intelligent mobile phone has become a new paradise for hackers. Imagine, under this environment of everybody holds a smart phone nowadays, nothing is more active than the mobile phone viruses and the vulnerabilities' exploits of software and mobile network. Therefore, to understand and master some practical security tools seems necessary and meaningful.
Today, all laptops come with wireless network adapter. At the same time, the huge convenience of wireless network is obvious. But since it is subject to technical bottleneck, the stability and quality of wireless network always can't catch up with wired network. That is to say, the most annoying thing when using a wireless network is the poor signal, especially you don't know which one is better.