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a2ikm/centos7-ipv4-dns.txt

Last active September 25, 2017 02:16
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centos7-ipv4-dns.txt
[root@localhost ~]# nmcli con
[root@localhost ~]# nmcli con show System\ eth0
[root@localhost ~]# nmcli con mod System\ eth0 +ipv4.dns "8.8.8.8 8.8.4.4"
[root@localhost ~]# nmcli con mod System\ eth0 ipv4.ignore-auto-dns yes
[root@localhost ~]# systemctl restart NetworkManager
[root@localhost ~]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 8.8.8.8
nameserver 8.8.4.4
https://blog.apar.jp/linux/3147/
https://access.redhat.com/documentation/ja-jp/red_hat_enterprise_linux/7/html/networking_guide/sec-using_the_networkmanager_command_line_tool_nmcli
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centos7-ipv6-dns.txt
[root@localhost ~]# nmcli con mod System\ eth0 ipv6.method auto
[root@localhost ~]# nmcli con mod System\ eth0 +ipv6.dns "2001:4860:4860::8888 2001:4860:4860::8844"
[root@localhost ~]# nmcli con mod System\ eth0 ipv6.ignore-auto-dns yes
[root@localhost ~]# systemctl restart NetworkManager
[root@localhost ~]# cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 8.8.8.8
nameserver 8.8.4.4
nameserver 2001:4860:4860::8888
# NOTE: the libc resolver may not support more than 3 nameservers.
# The nameservers listed below may not be recognized.
nameserver 2001:4860:4860::8844
https://developers.google.com/speed/public-dns/docs/using
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