How to setup DNS server In Linux - Fix DNS resolve issue on a Linux VPS
To fix this issue, you are reqired to edit DNS entries:
Edit name server to any public DNS i.e. google dns server 184.108.40.206 in resolve.conf
Type route command to see kernel routing table. If you see 220.127.116.11 entry in routing table, you will require to delete this entry from routing table of your Ubuntu VPS. the output would look like this:
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 69-46-26-33.sta 0.0.0.0 UG 0 0 0 eth0
18.104.22.168 * 255.0.0.0 U 0 0 0 eth0
22.214.171.124 * 255.255.255.224 U 0 0 0 eth0
OR try with ip route command
ip route list
default via 126.96.36.199 dev eth0
188.8.131.52/8 dev eth0 proto kernel scope link src 184.108.40.206
220.127.116.11/27 dev eth0 proto kernel scope link src 18.104.22.168
Issue below command to delete conflicting route:
route del -net 22.214.171.124 netmask 255.0.0.0
ip route del 126.96.36.199/8 dev eth0
If you willing to use alternative DNS / other open DNS service, please also execute below command on Ubuntu VPS:
List of public DNS servers:
Google Public DNS IPv6 Addresses:
Level 3 Public DNS:
Norton DNS IP Addresses:
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