TNS Database Error Messages TNS-02401: gbname string too long, allowed number characters November 5, 2020 mpbod TNS-02401: gbname string too long, allowed number characters Cause: GBNAME or domain name too long. Action: Check the GBNAME parameter in LISTENER.ORA, shorten it. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)