I'm trying to update Eclipse 5.3.1 (on Gentoo Linux) from the Galileo Discovery Site and I get this error message:
Network connection problems encountered during search.
Unable to access "http://download.eclipse.org/releases/galileo".
Error accessing site stream. [Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd]
Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
Error accessing site stream. [Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd]
Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
It seems the 503 error code is intended to stop software from constantly downloading this file from w3.org. But how do I persuade Eclipse to stop requesting it?