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The output of your command "$ w -h" is:

wahid    tty2     -                14Mar26 24days  0.12s  0.04s /usr/libexec/gnome-session-binary --session=ubuntu
wahid             192.168.254.125  22Mar26  8days  0.00s  1.31s sshd: wahid [priv]
wahid             192.168.254.125  15Mar26  8days  0.00s  0.01s sshd: wahid [priv]
wahid             192.168.254.125  14Mar26  8days  0.00s  0.02s sshd: wahid [priv]