Ping remote sever, nc, telnet, whatever


 
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Operating Systems BSD Ping remote sever, nc, telnet, whatever
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# 5  
Old 01-09-2016
Quote:
Originally Posted by 1in10
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Code:
ping -c1 -w3 133.242.225.54
PING 133.242.225.54 (133.242.225.54) 56(84) bytes of data.

output

Code:
--- 133.242.225.54 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2000ms

Does this mean the remote server is up? At least ping sent three packets, zero loss. But is it on air?
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ping transmitted three packets but didn't receive any: 100% packet loss, not zero!
It doesn't seem to be "on air" unless those packets are intercepted by some firewall.
 
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KF(1)							    BSD General Commands Manual 						     KF(1)

NAME
kf -- securely forward tickets SYNOPSIS
kf [-p port | --port=port] [-l login | --login=login] [-c ccache | --ccache=ccache] [-F | --forwardable] [-G | --no-forwardable] [-h | --help] [--version] host ... DESCRIPTION
The kf program forwards tickets to a remote host through an authenticated and encrypted stream. Options supported are: -p port, --port=port port to connect to -l login, --login=login remote login name -c ccache, --ccache=ccache remote cred cache -F, --forwardable forward forwardable credentials -G, --no-forwardable do not forward forwardable credentials -h, --help --version kf is useful when you do not want to enter your password on a remote host but want to have your tickets one for example AFS. In order for kf to work you will need to acquire your initial ticket with forwardable flag, i.e. kinit --forwardable. telnet is able to forward tickets by itself. SEE ALSO
kinit(1), telnet(1), kfd(8) Heimdal July 2, 2000 Heimdal