UBUNTU - DNS resoled service is being restart by vpn client every 2 min

Question

Hello,i am facing an issue of DNS resolved service restart every 2 min by forticlient.this cause an interruption in the DNS service.any idea how to turn the DNS restart by the client?this is on Ubuntu 20.04 environmentlogs from fortyclient 10:16:11.012 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:16:11.060 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:16:11.062 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.20220324 10:18:11.015 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:18:11.068 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:18:11.070 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.20220324 10:20:11.012 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:20:11.085 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:20:11.087 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.20220324 10:22:11.011 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:22:11.075 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:22:11.078 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.20220324 10:24:11.012 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:24:11.061 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:24:11.064 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.20220324 10:26:11.015 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:26:11.071 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:26:11.074 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.20220324 10:28:11.015 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:28:11.066 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:28:11.068 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.20220324 10:30:11.014 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:30:11.068 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:30:11.071 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.20220324 10:32:11.017 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:32:11.066 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:32:11.069 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.20220324 10:34:11.013 [sslvpn:DEBG] dns:735 Reset DNS20220324 10:34:11.061 [sslvpn:DEBG] dns:124 Restart DNS service successfully.20220324 10:34:11.063 [sslvpn:DEBG] dns:134 Flush DNS cache successfully.

jintrah_FTNT · Answer

Hi,

Please check if below helps,

# resolved service deactivated
systemctl disable systemd-resolved.service
systemctl stop systemd-resolved

# parameter in config add
/etc/NetworkManager/NetworkManager.conf
[main]
dns=default

# symlink delet
rm /etc/resolv.conf
systemctl restart network-manager

Best regards,

Jin

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