> On Sun, Aug 6, 2023 at 6:13 AM Jon Smart <j...@daydaylive.us> wrote: > >> It's a VPS provided by a local ISP. The VPS has a static IPv4. >> Do you know how to know if /etc/resolv.conf is modified by dhcp? >> >> Thanks. >> >> >> > >> > Hi Jon, >> > >> >> I have removed the default systemd-resolved local dns service >> following >> >> the link below, >> >> >> >> >> https://askubuntu.com/questions/907246/how-to-disable-systemd-resolved-in-ubuntu >> >> >> >> And I have unbound installed and enabled as local DNS server. >> >> >> >> But every time I reboot the server, the configuration file >> >> /etc/resolv.conf changes to a default one. So every time I have to >> >> update >> >> its content to: >> >> >> >> nameserver 127.0.0.1 >> > The file /etc.resolv.conf is just a soft link. > > You need to: > > 1: Delete /etc/resolv.conf - rm /etc/resolv.conf > 2: Create a new /etc/resolv.conf file: touch /etc/resolv.conf > 3: Configure you nameservers > 4: Make the file immutable: chattr +i /etc/resolv.conf >
These 4 steps do work great! Thanks a lot. regards.