When a VMware 17 Player Linux guest on NAT can ping IP addresses but fails to resolve domain names, the issue typically lies with DNS configuration within the virtual network adapter or the guest's resolver settings. This guide details how to verify /etc/resolv.conf, restart the VMware DHCP service, and ensure proper network interface management to restore full internet connectivity.
Understanding the NAT Network Architecture
VMware Workstation Player uses a virtual NAT (Network Address Translation) network to allow guests to access the host's internet connection while remaining isolated from the external network. In this setup, VMware runs a local DHCP server and a DNS proxy on the host machine. The guest receives an IP address, subnet mask, gateway, and DNS server information automatically via DHCP. The gateway for a typical NAT network is usually set to192.168.x.2 or 172.16.x.2 depending on the VMnet configuration. The DNS server provided by VMware is often the same as the gateway IP or a specific internal IP like 192.168.x.1. When you can ping an IP address like 8.8.8.8 but cannot ping google.com, it confirms that the network layer is functional, but the application layer (DNS) is failing. This isolation helps pinpoint the problem to name resolution rather than general connectivity.
For more insights on network troubleshooting, see our article on Troubleshooting Weird Gateway Issue in VMware.
Verifying Guest DNS Configuration
The first step is to inspect the DNS configuration inside the Linux guest. Modern Linux distributions use various methods to manage network interfaces, such as NetworkManager, systemd-resolved, or traditional ifupdown scripts. The most common file controlling DNS resolution is/etc/resolv.conf.
Open a terminal in the guest and run:
cat /etc/resolv.conf
Check if there are valid nameserver entries. If the file is empty, contains only comments, or points to an unreachable IP, DNS will fail. In many cases, /etc/resolv.conf is a symbolic link to a dynamic file managed by NetworkManager (/run/NetworkManager/resolv.conf) or systemd-resolved (/run/systemd/resolve/stub-resolv.conf).
If you are using NetworkManager, you can check the DNS servers assigned to your active connection by running:
nmcli dev show | grep DNS
This command should list one or more IP addresses. If these IPs are missing or incorrect, the DHCP client may not have received the correct lease from the VMware virtual router.
Restarting Network Services in the Guest
Sometimes, the guest's network stack holds onto stale DHCP leases or cached DNS records that are no longer valid. Restarting the network services forces the guest to request fresh configuration from the VMware virtual DHCP server. For systems using NetworkManager, execute:sudo systemctl restart NetworkManager
For older systems or those using systemd-networkd, use:
sudo systemctl restart systemd-networkd
After restarting, verify that the network interface has obtained an IP address and that DNS servers are present by checking ip addr and cat /etc/resolv.conf again. Test resolution with:
nslookup google.com
If this still fails, proceed to check the host-side VMware services.
Resetting VMware Virtual Network Editor Settings
The VMware host manages the virtual networks through the "Virtual Network Editor." Corruption in the configuration files here can prevent the local DNS proxy from functioning correctly, even if the guest appears connected. On the host machine, open VMware Player, go to Edit > Virtual Network Editor. You may need administrator privileges to make changes. Select the VMnet used by your guest (usually VMnet8 for NAT). Click Change Settings to ensure you have write access. Then, click Restore Defaults. This action resets all virtual network adapters, DHCP settings, and NAT configurations to their factory state. It effectively recreates the virtual switch and restarts the VMware DHCP and NAT services on the host. Once the restoration is complete, power on the Linux guest. It should automatically receive a new IP address and DNS configuration. This method resolves issues where the VMware DNS proxy service on the host has crashed or become unresponsive. For related networking topics, refer to Troubleshooting: Cannot Connect to the Internet.Checking Firewall and Security Software
In rare cases, host-side firewall software or security suites may block the UDP port 53 traffic required for DNS queries between the guest and the VMware virtual router. While VMware creates its own rules, third-party antivirus or firewall applications might interfere. Temporarily disable any third-party firewalls on the host machine and test DNS resolution in the guest. If it works, add an exception for VMware processes (vmware.exe, vmnetdhcp.exe, vmnat.exe) in your firewall settings.
Additionally, ensure that the guest's internal firewall (like ufw or firewalld) is not blocking outgoing DNS queries. Although less likely since you can ping IPs, misconfigured egress rules can sometimes impact specific protocols. Check status with:
sudo ufw status
Manual DNS Fallback
If the VMware internal DNS proxy continues to fail, you can configure the guest to use public DNS servers as a workaround. Edit/etc/resolv.conf (if not managed dynamically) or adjust the NetworkManager connection settings to include Google DNS (8.8.8.8) or Cloudflare DNS (1.1.1.1).
For NetworkManager:
nmtui
Select Edit a connection, choose your Ethernet/Wi-Fi device, and under IPv4 Configuration, set Method to Automatic (DHCP) but manually enter 8.8.8.8, 1.1.1.1 in the DNS Servers field.
This bypasses the VMware NAT DNS proxy entirely, allowing the guest to resolve names directly over the internet. This is a reliable solution if the VMware virtual network infrastructure is unstable or if you require faster resolution times.
Frequently Asked Questions
Why can I ping 8.8.8.8 but not google.com?
This indicates that your network connectivity is working, but the Domain Name System (DNS) is failing. Your computer knows how to reach the internet, but it cannot translate human-readable domain names into IP addresses. This is almost always a configuration issue with the DNS server settings in your guest OS or the VMware virtual network.
How do I reset VMware's virtual network settings?
Open the Virtual Network Editor in VMware Player, select the VMnet associated with your NAT network (usually VMnet8), and click "Restore Defaults." This resets the virtual switches, DHCP servers, and NAT services to their original configuration, which often fixes corrupted network states.
What is the default DNS server for VMware NAT?
The default DNS server is typically the gateway IP of the virtual network, often ending in .2 (e.g., 192.168.x.2). VMware runs a local DNS proxy on this address to handle name resolution for guests. If this service crashes, DNS resolution will fail even if the network path is clear.
Can I use Google DNS instead of VMware's DNS?
Yes, you can manually configure your Linux guest to use public DNS servers like 8.8.8.8 or 1.1.1.1. This bypasses VMware's internal DNS proxy and allows direct resolution over the internet, which can be useful if the VMware DNS service is unreliable.
Does restarting the Linux guest fix DNS issues?
Restarting the guest can help if the issue is due to a stale DHCP lease or a temporary glitch in the guest's network manager. However, if the problem persists after reboot, the issue likely lies with the host-side VMware services or the configuration files themselves.