> For the complete documentation index, see [llms.txt](https://riteshs4hu.gitbook.io/infosec-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://riteshs4hu.gitbook.io/infosec-notes/reconnaissance/active-reconnaissance-approach/netwrok-scanning-tools/ping.md). # ping The `ping` command is a network utility used to test the reachability of a device on a network and measure the round-trip time (RTT) for messages sent from the source to the destination. It helps diagnose connectivity issues and assess network performance. ### Syntax ```bash ping [options] ``` ### Examples * **Show the help menu of the command** ```bash ping -h ``` * **Ping a website using its DNS name or IP address** ```bash ping example.com ``` * **Use audible ping (beeps on reply)** ```bash ping -a example.com ``` * **Use adaptive ping** ```bash ping -A example.com ``` * **Sticky source address** ```bash ping -B example.com ``` * **Stop after sending 4 packets** ```bash ping -c 4 example.com ``` * **Call connect() syscall on socket creation** ```bash ping -C example.com ``` * **Print timestamps with each ping reply** ```bash ping -D example.com ``` * **Use SO\_DEBUG socket option** ```bash ping -d example.com ``` * **Define a custom identifier for the ping session** ```bash ping -e 1234 example.com ``` * **Flood ping (send packets as fast as possible)** ```bash ping -f example.com ``` * **Force reverse DNS name resolution** ```bash ping -H example.com ``` * **Specify network interface for sending packets** ```bash ping -I eth0 example.com ``` * **Set interval between packets to 2 seconds** ```bash ping -i 2 example.com ``` * **Suppress loopback of multicast packets** ```bash ping -L example.com ``` * **Send 5 packets immediately while waiting for replies** ```bash ping -l 5 example.com ``` * **Tag packets with a specific mark** ```bash ping -m 10 example.com ``` * **Set Path MTU discovery option to "do"** ```bash ping -M do example.com ``` * **Disable reverse DNS resolution** ```bash ping -n example.com ``` * **Report outstanding replies** ```bash ping -O example.com ``` * **Specify a custom padding pattern** ```bash ping -p ff example.com ``` * **Quiet output (only summary displayed)** ```bash ping -q example.com ``` * **Set quality of service bits** ```bash ping -Q 0x20 example.com ``` * **Send packets with a specific data size (1000 bytes)** ```bash ping -s 1000 example.com ``` * **Set socket buffer size** ```bash ping -S 4096 example.com ``` * **Set time-to-live (TTL) value to 64** ```bash ping -t 64 example.com ``` * **Print user-to-user latency** ```bash ping -U example.com ``` * **Enable verbose output** ```bash ping -v example.com ``` * **Show the ping command version** ```bash ping -V ``` * **Set a deadline of 10 seconds for ping responses** ```bash ping -w 10 example.com ``` * **Wait 5 seconds for each reply before timeout** ```bash ping -W 5 example.com ``` #### IPv4-Specific Options * **Force IPv4 usage** ```bash ping -4 example.com ``` * **Allow pinging a broadcast address** ```bash ping -b 192.168.1.255 ``` * **Record the route of packets** ```bash ping -R example.com ``` * **Use a timestamp option** ```bash ping -T tsonly example.com ``` #### IPv6-Specific Options * **Force IPv6 usage** ```bash ping -6 example.com ``` * **Set an IPv6 flow label** ```bash ping -F 12345 example.com ``` * **Use IPv6 node info query** ```bash ping -N help ```