ping
ping TCP/IP, .
(ICMP Echo-Request) ICMP (ICMP Echo-Reply). (RTT, . Round Trip Time) (RTT) , .
ICMP- , ( - ) ICMP Echo-Reply ICMP Echo-Request.
ping TCP/IP . ping , ping SNMP RFC 2925 (Definitions of Managed Objects for Remote Ping, Traceroute, and Lookup Operations).
ICMP- raw-, ping UNIX- . ping /bin/ping SUID-.
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- PING «Packet InterNet Grouper (Groper)».
- Ping -. , , - .
- Pong (ICMP Echo-Reply), ping.
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(. Mike Muuss), (. Ballistics Research Lab) 1983 .
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[] UNIX
3 5 ,
$ ping -ai 5 -c 3 enciclopedia.org PING enciclopedia.org (208.80.152.2) 56(84) bytes of data. 64 bytes from rr.pmtpa.wikimedia.org (208.80.152.2): icmp_seq=1 ttl=46 time=176 ms 64 bytes from rr.pmtpa.wikimedia.org (208.80.152.2): icmp_seq=2 ttl=46 time=177 ms 64 bytes from rr.pmtpa.wikimedia.org (208.80.152.2): icmp_seq=3 ttl=46 time=181 ms --- enciclopedia.org ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 10007ms rtt min/avg/max/mdev = 176.253/178.291/181.339/2.222 ms $
[] Windows
Ping Windows:
C:\>ping ru.wikipedia.org rr.esams.wikimedia.org [91.198.174.225] 32 : 91.198.174.225: =32 =54 TTL=32 91.198.174.225: =32 =54 TTL=32 91.198.174.225: =32 =54 TTL=32 91.198.174.225: =32 =54 TTL=32 Ping 91.198.174.225: : = 4, = 4, = 0 (0% ), - : = 54 , = 54 , = 54
