Cara mudah untuk menonaktifkan IPv6 di Linux (Debian, Fedora, Ubuntu, CentOS). Edit file /etc/sysctl.conf dibagian paling bawah tambahkan
net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1
agar perubahan tersebut diaplikasikan tanpa perlu restart, eksekusi
sysctl -pPerubahan tersebut permanent, bila anda ingin mengaktifkan fitur IPv6 kembali hapus ketiga baris diatas.
Cara Verifikasi IPv6
Cara untuk mengetahui IPv6 sudah dinonaktifkan atau belum bisa dilihat dengan perintah ping
ping -6 -c5 google.com # output PING google.com(si-in-f100.1e100.net (2404:6800:4003:c04::64)) 56 data bytes 64 bytes from si-in-f100.1e100.net (2404:6800:4003:c04::64): icmp_seq=1 ttl=113 time=1.74 ms 64 bytes from si-in-f100.1e100.net (2404:6800:4003:c04::64): icmp_seq=2 ttl=113 time=1.80 ms 64 bytes from si-in-f100.1e100.net (2404:6800:4003:c04::64): icmp_seq=3 ttl=113 time=1.77 ms 64 bytes from si-in-f100.1e100.net (2404:6800:4003:c04::64): icmp_seq=4 ttl=113 time=2.03 ms 64 bytes from si-in-f100.1e100.net (2404:6800:4003:c04::64): icmp_seq=5 ttl=113 time=1.79 ms --- google.com ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 11ms rtt min/avg/max/mdev = 1.739/1.828/2.034/0.111 ms
pada contoh tersebut anda memiliki IPv6.
Bila anda tidak memiliki akses IPv6, hasilnya
ping -6 -c5 google.com # output ping: connect: Network is unreachable
Last Updated on 7 November 2021 by tommy
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