handbook/tools/1.Information-Gathering/1.Passive-Reconnaissance/Ping.md
2024-08-31 01:07:22 +02:00

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## what is ping?
Ping is a network diagnostic tool that sends packets of data to a target host and measures the time it takes for the packets to be transmitted and received. The tool is used to test the connectivity of a network and to determine the round-trip time (RTT) for data packets to travel between two devices.
## Common use and commands:
The most common use of ping is to test whether a host is reachable over the network. To use ping, simply open a command prompt or terminal and type "ping" followed by the target host's IP address or domain name. The tool will send a series of ICMP packets to the target host and report the results, including the RTT and any packet loss.
Ping
```Terminal
ping -c X IP
```
- -c ---> Number of ping sent
TTL response from the ping might give some infromation about the operating system
- Linux ---> 64 or less
- Windows ---> 128
- Cisco ---> 128 - 256