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Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      6725/sshd
tcp6       0      0 :::22                   :::*                    LISTEN      6725/sshd
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      2393/cupsd
tcp        0      0 127.0.0.1:53            0.0.0.0:*               LISTEN      646/systemd-resolved
tcp        0      0 127.0.0.1:80            0.0.0.0:*               LISTEN      24552/apache2

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