Hi, some strange change wer happen, not once, not twice, 4 times already! I had set the Nameservers to Google's 8.8.8.8 and. 8.8.4.4 in either resolv.conf and ISPConfig Server Config and in resolve.conf that nameservers were changed 4 times already to the nameserver of my ISP! How such could happens? In ISPConfig there wasn't changes and they still stay at Google's nameservers! Any Idea? And how to prevent that such changes happens? Thanks.
Is this a virtual machine or a "real" server? Is the IP configured by dhcp or did you configure it in /etc/network/interfaces as static IP?
10min ago I changed the Namservers to Google's Nameservers and now just checked again and they're back to my ISP's Nameservers! What the Hell is going on?
It's a real server NOT VS! And this is Interfaces: Code: root@server:~# vi /etc/network/interfaces # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). # The loopback network interface auto lo iface lo inet loopback # The primary network interface #allow-hotplug eth0 #iface eth0 inet dhcp auto eth0 iface eth0 inet static address 192.168.1.100 netmask 255.255.255.0 network 192.168.1.0 broadcast 192.168.1.255 gateway 192.168.1.1
Hmm, then I've no idea at the moment how the resolv.conf could get changed. As a workaround, you can deny all changes in resolv.conf by setting it to immutable: chattr +i /etc/resolv.conf No user incl. root will be able to change that file again until you remove the protection with: chattr -i /etc/resolv.conf
As I execurte the command I get: Code: root@server:~# chattr +1 /etc/resolv.conf Usage: chattr [-RVf] [-+=AaCcDdeijsSu] [-v version] files... root@server:~# Is that correct? Thanks.
And now something interesting: in WinSCPI check the resolv.conf and the setting were back to my ISP's nameserver. So, this time I changed them in WinSCP, had to key in my root PW again and the changes were done. That even after I had used the command you gave me! From Terminal I could no open resolv.conf with vi!! That looks really not good at all!!
OK, changed and get: Code: root@server:~# root@server:~# chattr +i /etc/resolv.conf -bash: root@server:~#: command not found root@server:~#
Still: what could have trigger those changes to the Nameservers of MY ISP from Google's nameservers? That's something I really don't like! Unpredictable changes same like my server down some days ago are really something what never should happen! I also check the server for an infection from an bootable media and all were clean, nothing found! Same I'd done with HDD with the old server install, also totally clean!
