/etc/hosts (before)
127.0.0.1   localhost
127.0.1.1   b0x

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

/etc/hosts (after)
127.0.0.1   localhost
127.0.1.1   b0x

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters


/etc/resolv.conf:
nameserver 127.0.0.1

after tor daemon is stopped and the anonymous mode is stopped too:
ping -c1 google.com says:
ping: unknown host google.com