NETWORKS GR

Most of you might have enabled wireless encryption, which is only one of the 6 steps mentioned in this article to make your wireless network safe and secure from hackers.  The screenshots mentioned below are from Linksys wireless router. But, you’ll find similar options for all the 6 steps mentioned below in wireless routers from any other vendors. Apart from these 6 steps to secure your wireless router, also make sure your wireless router firmware is up-to-date. Refer to our  4 easy steps to upgrade linksys wireless router firmware  article for detailed instructions on how to upgrade your router firmware. 1. Enable Encryption Let us start with the basics. Most of the wireless router has the encryption disabled by default. Make sure to enable either WPA or WPA2 wireless encryption.  Click on  Wireless -> Wireless Security ,  to enable the encryption and assign a password as shown in Fig-1. Following are the different wireless encryption options available. WEP (Wired Equivalent Pro

Ping Example 1. Increase or Decrease the Time Interval Between Packets By default ping waits for 1 second before sending the next packet. You can increase or decrease this using option -i as shown below. Increase Ping Time Interval Example: Wait for 5 seconds before sending the next packet. $ ping -i 5 IP Decrease Ping Time Interval Example: Wait 0.1 seconds before sending the next packet. # ping -i 0.1 IP Note:  Only super user can specify interval less than 0.2 seconds. If not, you’ll get the following error message. $ ping -i 0.1 127.0.0.1 PING 0 (127.0.0.1) 56(84) bytes of data. ping: cannot flood; minimal interval, allowed for user, is 200ms Ping Example 2. Check whether the local network interface is up and running Before checking whether the peer machine is reachable, first check whether the local network network is up and running using any one of the following 3 methods. Ping localhost using zero (0) This is probably the easiest and simplest way to ping a local host $ ping