i fix this one by myself help by god what you need to do 1. change you hostname, using vi or vim and then cat your hostname to be something like this root@localhost:~# cat /etc/hostname localhost 2. because i am using debian i run hostname update script root@localhost:~# /etc/init.d/hostname.sh 3. signout and then sign in again 4. make sure your /etc/host like below root@localhost:~# cat /etc/hosts 127.0.0.1 localhost.localdomain localhost ::1 localhost ip6-localhost ip6-loopback 5. Resintall your jasperserver, uninstall first and then install again root@localhost:~# ./jasperreports-server-cp-4.7.0-linux-x64-installer.run you should be ok by now and it's magically fix it self