Cannot Add Large Number of Trusted Host IP Addresses

Published: 28 Jan 2013
Last Modified Date: 17 Dec 2019


When adding a large list of IP addresses to Tableau Server using the tabadmin set wgserver.trusted_hosts command,the following error might occur:  
Too many arguments


  • Tableau Server for Windows 2018.1 and earlier versions
  • Trusted Authentication


To resolve this issue, add the IP addresses to the tabsvc.yml file directly using the procedure below:
  1. Go to the "config" folder in the Tableau Server directory. For example, "C:\ProgramData\Tableau Server\config" 
  2. Open the tabscv.yml file with a text editor, such as Notepad.
  3. Find the line wgserver.trusted_hosts
  4. Add the IP addresses as a single line list, separating each entry with a comma and space. 
  5. Save your changes. 
  6. Open the Command Prompt, and change directories to the Tableau Server "bin" folder. For example, type cd c:\Program Files (x86)\Tableau\Tableau Server\[version]\bin
  7. Type the following command to restart Tableau Server: tabadmin restart


This issue is caused by a limitation with the Windows operating system string length allowed by the the Command Prompt. 
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