I solved. sudoedit /etc/dhcp/dhcpd.config
On Thursday, February 16, 2017 at 11:34:18 AM UTC+8, yoy oo wrote: > I try to edit the /etc/network/interfaces > > but when I save the file. It show the file is read only, permission denied. > > I login as ubuntu:ubuntu > > Thank you. > -- You received this message because you are subscribed to the Google Groups "Graylog Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to graylog2+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/graylog2/79bc5b01-0aae-4ab2-8222-6950e6fd9955%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.