Bug 57695 - [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
Summary: [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to liste...
Status: NEW
Alias: None
Product: Apache httpd-2
Classification: Unclassified
Component: mpm_prefork (show other bugs)
Version: 2.4.12
Hardware: PC Linux
: P2 normal (vote)
Target Milestone: ---
Assignee: Apache HTTPD Bugs Mailing List
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-03-12 20:39 UTC by Reindl Harald
Modified: 2015-03-12 20:39 UTC (History)
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Description Reindl Harald 2015-03-12 20:39:44 UTC
what's the purpose of these warnings and listening on tcp6 in a environment with a completly dsiabled ipv6 stack?

OS: Fedora 21 3.18.8-201.fc21.x86_64

Server version: Apache/2.4.12 (thelounge.net)
Server built:   Mar 12 2015 17:40:22
Server's Module Magic Number: 20120211:41
Server loaded:  APR 1.5.1, APR-UTIL 1.5.4
Compiled using: APR 1.5.1, APR-UTIL 1.5.4
Architecture:   64-bit
Server MPM:     prefork
  threaded:     no
    forked:     yes (variable process count)
Server compiled with....
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
 -D APR_USE_SYSVSEM_SERIALIZE
 -D APR_USE_PTHREAD_SERIALIZE
 -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D DYNAMIC_MODULE_LIMIT=256
 -D HTTPD_ROOT="/etc/httpd"
 -D SUEXEC_BIN="/etc/httpd/bin/suexec"
 -D DEFAULT_PIDLOG="/run/httpd/httpd.pid"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_ERRORLOG="logs/error_log"
 -D AP_TYPES_CONFIG_FILE="conf/mime.types"
 -D SERVER_CONFIG_FILE="conf/httpd.conf"
______________________________________________________


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

tcp6       0      0 :::80                   :::* LISTEN      1120/httpd

______________________________________________________

ifconfig
eth0: flags=67<UP,BROADCAST,RUNNING>  mtu 1500
        inet **.**.**.**  netmask 255.255.255.0  broadcast 255.255.255.255
        ether 00:0c:29:76:12:e9  txqueuelen 50  (Ethernet)
        RX packets 54981  bytes 4347586 (4.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 36638  bytes 6514141 (6.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=67<UP,BROADCAST,RUNNING>  mtu 1500
        inet 192.168.196.12  netmask 255.255.255.0  broadcast 192.168.196.255
        ether 00:0c:29:ac:d9:d0  txqueuelen 50  (Ethernet)
        RX packets 2270  bytes 295266 (288.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2304  bytes 456306 (445.6 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[Thu Mar 12 19:00:59.046866 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:01:00.048360 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:01:01.049818 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:01:02.050255 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:01:03.051662 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:01:04.053172 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:01:05.054569 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:01:10.060782 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:01:11.062143 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:01:12.063372 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:02:56.193359 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:03:23.230106 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80
[Thu Mar 12 19:03:33.241534 2015] [core:warn] [pid 1120] (101)Network is unreachable: AH00056: connect to listener on [::]:80