Some difficulty installing v4.7.0.b02 in Ubuntu Server 18.04 LTS AWS EC2 instance

[FordSubmariner]

ubuntu@x.x:~$ lynx http://localhost
[this did connect to apache]
ubuntu@x.x2:~$ sudo systemctl stop apache2
ubuntu@x.x:~$ lynx http://localhost

Looking up localhost
Making HTTP connection to localhost
Alert!: Unable to connect to remote host.

lynx: Can't access startfile http://localhost/
ubuntu@x.x:~$ sudo su -s /bin/bash www-data
www-data@x.x:/home/ubuntu$ cd /home/apache/tactic/src/bin
www-data@x.x:/home/apache/tactic/src/bin$ python3 startup_dev.py -p 80 -s http://x.x

Data Directory [/home/apache/tactic_data]
Asset Directory [/opt/tactic/assets]
Temp Directory [/opt/tactic/tactic_temp]
Config path [/home/apache/tactic_data/config/tactic-conf.xml]
Registering project ... admin
Registering project ... default
Initializing Workflow Engine
Starting Scheduler ....

Starting TACTIC v4.7.0.b02 ...
[But should it stay running and hang on to the command prompt (as a foreground process)? Instead, it immediately returned the command line as shown below... I tried connecting using a remote browser to the http://x.x/tactic URL but nothing is listening on port 80, and the browser found no connection.]
www-data@x.x:/home/apache/tactic/src/bin$
www-data@x.x:/home/apache/tactic/src/bin$ ps aux|grep startup_dev
www-data 22354  0.0  0.1  14856  1100 pts/0    S+  10:35  0:00 grep startup_dev
www-data@x.x:/home/apache/tactic/src/bin$
$ netstat -lpn|grep 80
(No info could be read for "-p": geteuid()=33 but you should be root.)
unix  2      [ ACC ]    STREAM    LISTENING    12801    -                    /run/lvm/lvmpolld.socket
www-data@x.x:/home/apache/tactic/src/bin$ exit
ubuntu@x.x:~$ sudo netstat -lpn|grep 80
unix  2      [ ACC ]    STREAM    LISTENING    12801    1/init              /run/lvm/lvmpolld.socket


$ sudo systemctl start apache2
ubuntu@x.x:~$ sudo netstat -lpn|grep 80
tcp6      0      0 :::80                  :::*                    LISTEN      22405/apache2     
unix  2      [ ACC ]    STREAM    LISTENING    12801    1/init              /run/lvm/lvmpolld.socket
ubuntu@x.x:~$