Answers. Best Answer: 12 hours. Though you can sleep you need to wake up every hour, and doing that is basically the same as getting no sleep. Also, you would need someone else to wake you up every hour and that would disturb their sleep too, so it is easier for everyone if you just stay up the 12 hours.Source(s):Maggie Â· 7 years ago.hough you can sleep you need to wake up every hour, and doing that is basically the same as getting no sleep. Also, you would need someone else to wake you up every hour and that would disturb their sleep too, so it is easier for everyone if you just stay up the 12 hours. Source(s): Maggie Â· 7 years ago.
The ping Command. ping is one of the most basic, but also one of the most useful, tools for obtaining information about computer networks, including the Internet. A main use of ping is to determine whether a specific IP address is accessible. An IP address is a unique numeric identifier for a computer or other device on the Internet or other TCP/IP (transmission control protocol/Internet protocol) network.
Ports are a concept of UDP and TCP. Ping messages are technically referred to as ICMP Echo Request and ICMP Echo Reply which are part of ICMP. ICMP, TCP, and UDP are siblings; they are not based on each other, but are three separate protocols that run on top of IP. Therefore you can not ping a port.What you can do, is use a port scanner like nmap. You can also use telnet onofri.org 80, as suggested in one of the other answers (It will give an error if the port is closed or filtered).orts are a concept of UDP and TCP. Ping messages are technically referred to as ICMP Echo Request and ICMP Echo Reply which are part of ICMP. ICMP, TCP, and UDP are siblings; they are not based on each other, but are three separate protocols that run on top of IP. Therefore you can not ping a port.