Jetty as web server substitute during maintenance#

On Linux

apt-get install jetty

/usr/share/jettyStart folder
/etc/default/jettyConfig file
/usr/share/java/jetty-start-6.1.24.jarMain Jar
/usr/share/jetty/webapps/root/Root web app
java -jar start.jar --help
=> java [-DDEBUG] [-DSTART=start.config] [-Dmain.class=org.MyMain] 
    -jar start.jar [--help|--stop|--version] [config ...]

cd /usr/share/jetty
java -jar start.jar &
java -jar start.jar etc/jetty.xml etc/jetty-rewrite.xml &
java -jar start.jar --stop

Make Jetty deliver one page for all URLs#

Keyword is "URL Rewrite", see http://wiki.eclipse.org/Jetty/Feature/Rewrite_Handler

UrlRewriteFilter Docu