Do not open the site ServiceDesk

Do not open the site ServiceDesk

Hello.

After installing and running the database and ServiceDesk system, I can not open a website with an external host. Port ServiceDesk - 80.

netstat shows that listening ServiceDesk only protocol port tcp6
The output:
tcp6      0      0      [::]:http      [::]:*      LISTEN

What and how to fix it? So ServiceDesk to listen on port protocol tcp4?

OS: Linux CentOS 7 x64.

With respect.
Igor Stepanenko.

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