https://bz.apache.org/bugzilla/show_bug.cgi?id=63803

            Bug ID: 63803
           Summary: Cannot assign requested address: AH00056: connect to
                    listener on [::]:80
           Product: Apache httpd-2
           Version: 2.4.41
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: mpm_worker
          Assignee: bugs@httpd.apache.org
          Reporter: h.rei...@thelounge.net
  Target Milestone: ---

httpd-2.4.41

Linux 5.3.2-300.fc30.x86_64
RestrictAddressFamilies=AF_INET AF_INET6 AF_LOCAL AF_UNIX

for years i had ipv6 completly disabled and also most services explicit bound
to 0.0.0.0 and now while preparing dual-stack for next year httpd turns out to
be problematic

---------------------------

sysctl.conf to disable ipv6 for now unchanged:

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1

---------------------------

Listen 80
Listen 443

[root@srv-rhsoft:~]$ netstat -l | grep httpd
tcp6       0      0 :::443                  :::*                    LISTEN     
779331/httpd
tcp6       0      0 :::80                   :::*                    LISTEN     
779331/httpd

[Fri Oct 04 15:44:17.725896 2019] [core:warn] [pid 779331] (99)Cannot assign
requested address: AH00056: connect to listener on [::]:80
[Fri Oct 04 15:44:18.726902 2019] [core:warn] [pid 779331] (99)Cannot assign
requested address: AH00056: connect to listener on [::]:80
[Fri Oct 04 15:44:19.727874 2019] [core:warn] [pid 779331] (99)Cannot assign
requested address: AH00056: connect to listener on [::]:80
[Fri Oct 04 15:44:20.728905 2019] [core:warn] [pid 779331] (99)Cannot assign
requested address: AH00056: connect to listener on [::]:80
[Fri Oct 04 15:44:21.730132 2019] [core:warn] [pid 779331] (99)Cannot assign
requested address: AH00056: connect to listener on [::]:80
[Fri Oct 04 15:44:22.730923 2019] [core:warn] [pid 779331] (99)Cannot assign
requested address: AH00056: connect to listener on [::]:80

---------------------------

Listen 0.0.0.0:80
Listen 0.0.0.0:443

[root@srv-rhsoft:~]$ netstat -l | grep httpd
tcp        0      0 0.0.0.0:443             0.0.0.0:*               LISTEN     
788681/httpd
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN     
788681/httpd

everything is fine as all the years before

---------------------------

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