Comment 0 for bug 1580045

Greetings,

pcsd does only bind to IPv6 instead of IPv4 and IPv6, if it is started on a machine, which has active IPv6 support.

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lsb_release -rd
Description: Ubuntu 16.04 LTS
Release: 16.04
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apt-cache policy pcs
pcs:
  Installed: 0.9.149-1
  Candidate: 0.9.149-1
  Version table:
 *** 0.9.149-1 500
        500 http://mirror.hetzner.de/ubuntu/packages xenial/universe amd64 Packages
        500 http://de.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
        100 /var/lib/dpkg/status
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ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 52:54:a2:01:54:c6 brd ff:ff:ff:ff:ff:ff
    inet 172.31.1.100/24 brd 172.31.1.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:a2ff:fe01:54c6/64 scope link
       valid_lft forever preferred_lft forever
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By default it should bind to all available IPv4 and IPv6 interfaces. Instead it only bind to the IPv6:
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netstat -ap |grep ruby
tcp6 0 0 [::]:2224 [::]:* LISTEN 12430/ruby
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After changing the following in the /usr/share/pcsd/ssl.rb, it binds to IPv4 and IPv6:
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# diff /usr/share/pcsd/ssl.rb /usr/share/pcsd/ssl.rb.bak
50,51c50,51
< :BindAddress => 'nil',
< :Host => '*',
---
> :BindAddress => '::',
> :Host => '::',
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netstat -ap |grep ruby
tcp 0 0 *:2224 *:* LISTEN 12465/ruby
tcp6 0 0 [::]:2224 [::]:* LISTEN 12465/ruby
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