Hi, I follow the instruction here with some modification: https://www.gluu.org/docs/deployment/ubuntu/#ubuntu-14042-installation-guide $ echo "deb https://repo.gluu.org/ubuntu/ trusty main" > /etc/apt/sources.list.d/gluu-repo.list -bash: /etc/apt/sources.list.d/gluu-repo.list: Permission denied So I create file gluu-repo.list then copy to /etc/apt/sources.list.d/ $ echo "deb https://repo.gluu.org/ubuntu/ trusty main" > gluu-repo.list $ sudo cp gluu-repo.list /etc/apt/sources.list.d/ --next command-- $ curl https://repo.gluu.org/ubuntu/gluu-apt.key | apt-key add - % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0ERROR: This command can only be used by root. 100 3112 100 3112 0 0 6689 0 --:--:-- --:--:-- --:--:-- 6692 (23) Failed writing body So again I download the key to local and then run apt-key using sudo $ curl https://repo.gluu.org/ubuntu/gluu-apt.key -o gluu-apt.key $ sudo apt-key add gluu-apt.key ---next command--- $ sudo apt-get update $ sudo apt-get install gluu-server-2.4.3 Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: gluu-server-2.4.3 gluu-server-2.4.3 0 upgraded, 1 newly installed, 0 to remove and 129 not upgraded. Need to get 543 MB of archives. After this operation, 1,346 MB of additional disk space will be used. 0% [Working] I stuck at 0% and the installation never finish. I wondering if one of my steps are wrong since its not exactly the same with instruction. Thanks!