Why is Unifi not listening on tcp( ipv4 ) ports?

Question

Java

Good day!
Faced the problem of installing unifi.
All installation steps were performed on a clean debian (just created)

# lsb_release -d
Description:	Debian GNU/Linux 8.1 (jessie)
# apt-cache show unifi
Package: unifi
Version: 4.6.6-5426
# java -version
java version "1.7.0_79"
OpenJDK Runtime Environment (IcedTea 2.5.6) (7u79-2.5.6-1~deb8u1)
OpenJDK Client VM (build 24.79-b02, mixed mode, sharing)
# apt-cache show mongodb-server
...
Filename: pool/main/m/mongodb/mongodb-server_2.4.10-5_i386.deb
...

Actually, keys and corresponding repositories were added:

# apt-key adv --keyserver keyserver.ubuntu.com --recv C0A52C50 
# apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10
# echo 'deb http://www.ubnt.com/downloads/unifi/debian stable ubiquiti' > /etc/apt/sources.list.d/100-ubnt.list
# echo 'deb http://downloads-distro.mongodb.org/repo/debian-sysvinit dist 10gen' > /etc/apt/sources.list.d/mongodb.list
# apt-get update
# apt-get install unifi

I check the statuses of the unifi and mongo services - both are started and active.
Checking open ports:

# netstat -ntlpu
tcp        0      0 127.0.0.1:27117         0.0.0.0:*               LISTEN      4589/mongod       
tcp        0      0 0.0.0.0:28017           0.0.0.0:*               LISTEN      2763/mongod     
tcp        0      0 0.0.0.0:27017           0.0.0.0:*               LISTEN      2763/mongod       
tcp6       0      0 :::8880                 :::*                    LISTEN      4553/java       
tcp6       0      0 :::8080                 :::*                    LISTEN      4553/java              
tcp6       0      0 :::8443                 :::*                    LISTEN      4553/java       
tcp6       0      0 :::8843                 :::*                    LISTEN      4553/java       
udp6       0      0 :::10001                :::*                                4553/java       
udp6       0      0 46.101.212.29:56929     :::*                                4553/java        
udp6       0      0 :::3478                 :::*                                4553/java

in unify log

INFO system - unknown exception
com.ubnt.data.X$_o:
null
^
at com.ubnt.data.X$_Oo.Ò00000(Unknown Source)
at com.ubnt.data.X$_Oo.Ö00000(Unknown Source)
at com.ubnt.data.X.parseJSON(Unknown Source)
at com.ubnt.service.ooOO.C.o00000(Unknown Source)
at com.ubnt.service.ooOO.C.Õ00000(Unknown Source)
at com.ubnt. service.ooOO.C.ÒÓ0000(Unknown Source)
at com.ubnt.service.ooOO.H$5.run(Unknown Source)
at com.ubnt.ace.E$_Oo.run(Unknown Source) at java.util.concurrent .ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
at java.util.concurrent .Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145
) .java:615)
at java.lang.Thread.run(Thread.java:745)

What's wrong with him? What should I understand from the output to the log of some Java procedures ...

Answer 1

telnet -4 127.0.0.1 8080 and what does it say to other ports?