[ACCEPTED]-Does a connection to localhost go out onto the network?-networking
No packets will hit the network. Unplug 1 your network cable and try it!
Any packets sent to an IP address attached 7 to a local interface do not go out of your 6 host. 127.0.0.1 is not special in this 5 regard. Both
ping 127.0.0.1 and
ping 192.168.1.44 will transmit and receive 4 ICMP packets over the "loopback network 3 device". You can confirm this by unplugging 2 your Ethernet cable and observing the TX 1 and RX counters.
$ /sbin/ifconfig eth0 Link encap:Ethernet inet addr:192.168.1.44 Bcast:192.168.3.255 Mask:255.255.252.0 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 RX packets:992670 errors:0 dropped:0 overruns:0 frame:0 TX packets:992670 errors:0 dropped:0 overruns:0 carrier:0
The packets will stay on your machine.
The 7 name 'localhost' is an alias from 127.0.0.1 6 in the hosts file, if you edit the hosts 5 file (UNIX: /etc/hosts Windows: C:\windows\system32\drivers\etc\hosts) and 4 change localhost for any other word then 3 you'll access your local host using that 2 other word.
The address 127.0.0.1 is a loopback 1 address, it is defined in RFC3330
No, it's called loopback for a reason. IIRC, packets 2 to 127.0.0.1 aren't allowed "outside" the 1 computer.
No, the packets will not go to the network.
That depends on name resolution.
Try that 1 ping after
# echo "188.8.131.52 localhost" > /etc/hosts.
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