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PING localhost (127.0.0.1): 56 data bytes
64 bytes from 127.0.0.1: icmp_seq=0 ttl=64 time=0.3 ms
64 bytes from 127.0.0.1: icmp_seq=1 ttl=64 time=0.2 ms
64 bytes from 127.0.0.1: icmp_seq=2 ttl=64 time=0.2 ms
...
Èç¹û²»ÊÇÕâÑù,ÄãµÄloopback½ç¿Ú»ò·ÓÉÆ÷ÅäÖò»¶Ô.
ÃüÁî/sbin/route°üº¬ÈçÏÂÐÅÏ¢:
Destination Gateway Genmask Flags MSS Window Use Ifac
loopback * 255.0.0.0 U 3584 0 13 lo
ÃüÁî /sbin/ifconfig°üº¬ÏÂÁÐÐÐ:
lo Link encap:Local Loopback
inet addr:127.0.0.1 Bcast:127.255.255.255 Mask:255.0.0.0
UP BROADCAST LOOPBACK RUNNING MTU:3584 Metric:1
ÄãµÄ /etc/hostsÎļþ°üº¬ÏÂÁÐÐÐ:
127.0.0.1 localhost