Misconfigured ifcfg-eth file in template deployed RHEL 6.8 virtual machines

Products

• VMware vCenter Server

Issue/Introduction

Manually add double quotes to the DOMAIN value.

Symptoms:

• The RHEL 6.8 virtual machine was deployed from a template.
• Multiple DNS entries were added on the DNS and Domain Settings pane of the wizard.
• When the virtual machine is booting up, you see entries similar to:
  
  /etc/sysconfig/network-scripts/ifcfg-eth0: line 6: name.domain.com: command not found
  Shutting down interface eth0: /etc/sysconfig/network-scripts/ifcfg-eth0: line 6: name.domain.com: command not found
  /etc/sysconfig/network-scripts/ifcfg-eth0: line 6: name.domain.com: command not found
  /etc/sysconfig/network-scripts/ifcfg-eth0: line 6: name.domain.com: command not found
  /etc/sysconfig/network-scripts/ifcfg-eth0: line 6: name.domain.com: command not found
  [ OK ]
  Shutting down loopback interface: [ OK ]
  Bringing up loopback interface: [ OK ]
  Bringing up interface eth0: /etc/sysconfig/network-scripts/ifcfg-eth0: line 6: name.domain.com: command not found
  /etc/sysconfig/network-scripts/ifcfg-eth0: line 6: name.domain.com: command not found
  Determining if ip address 10.11.12.13 is already in use for device eth0...
  /etc/sysconfig/network-scripts/ifcfg-eth0: line 6: name.domain.com: command not found
  /etc/sysconfig/network-scripts/ifcfg-eth0: line 6: name.domain.com: command not found
  ./ifcfg-eth0: line 6: name.domain.com: command not found
  [ OK ]
  
  Note: These entries are also seen when running a service network restart command.

Environment

VMware vCenter Server 5.5.x
VMware vCenter Server 6.0.x

Cause

This issue occurs due to the DOMAIN values not being surrounded with double quotes. As the file is read on boot and/or a network restart, the shell treats the separate DNS domains as a command, if the domains are not surrounded with double quotes.

Resolution

To resolve this issue on a virtual machine, manually add the double quotes to the DOMAIN:

1. Open the /etc/sysconfig/network-scripts/ifcfg-eth0 file with a text editor.
2. Edit the DOMAIN entry adding double quotes around the domain entry:
   
   For Example:
   
   DOMAIN="temp.domain.com name.domain.com domain.com"
    
3. Save the file and reboot the virtual machine.

To correct this issue for future template deployments, edit the RHEL6Customization.pm file on the vCenter Server machine:

1. Open the RHEL6Customization.pm file in a plain text editor.

Note: The file is located at:
Windows: C:\Program Files\VMware\vCenter Server\vpxd\imgcust\linux\imgcust-scripts\RHEL6Customization.pm
vCenter Server Appliance: /usr/lib/vmware-vpx/imgcust/linux/imgcust-scripts/RHEL6Customization.pm

2. Change the following line:
push(@content, "DOMAIN=" . join(' ', @$dnsSuffixes) . "\n");
to:
push(@content, "DOMAIN=\"" . join(' ', @$dnsSuffixes) . "\"\n");

3. Save the file.

Additional Information

使用模板部署的 RHEL 6.8 虚拟机中的 ifcfg-eth 文件配置错误