34 lines
1.3 KiB
Plaintext
34 lines
1.3 KiB
Plaintext
2ping (bi-directional ping utility)
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2ping is a bi-directional ping utility. It uses 3-way pings (akin to
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TCP SYN, SYN/ACK, ACK) and after-the-fact state comparison between a
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2ping listener and a 2ping client to determine which direction packet
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loss occurs.
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If you would like to quickly test 2ping against a remote listener
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without setting one of your own up, there are several public test
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listeners available. Try test.2ping.net, cromulent.colobox.com, or
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linode-london.mirrors.finnix.org.
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To run a listener, you can manually start it with e.g. "2ping --listen".
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If you want to start a listener at boot, add a command like this to
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/etc/rc.d/rc.local:
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su nobody -s /bin/sh -c \
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'exec /usr/bin/2ping --quiet --listen' \
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&> /dev/null &
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Optional dependencies: Certain command line options to 2ping require
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additional packages.
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- dnspython: --srv option.
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- netifaces: --all-interfaces option.
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- python3-pycrypto: --encrypt option.
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The package can include a wireshark plugin for decoding the 2ping
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protocol. This requires your wireshark to have been compiled with lua52
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(not lua, which is version 5.1). See the README for network/wireshark
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for details. If you're not sure about your wireshark's lua version, try
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"ldd /usr/bin/wireshark|grep lua". This will show either liblua.so.5.1
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or liblua.so.5.2.
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