Bug#690232: apache2: Apache2 listens on tcp6 only

[Olaf Zaplinski <olaf@zaplinski.de>]

Package: apache2.2-common
Version: 2.2.16-6+squeeze8
Severity: normal



-- Package-specific info:
List of enabled modules from 'apache2 -M':
  alias auth_basic authn_file authz_default authz_groupfile
  authz_host authz_user autoindex cgi deflate dir env mime
  negotiation php5 reqtimeout setenvif status
List of enabled php5 extensions:
  mysql mysqli pdo pdo_mysql suhosin

-- System Information:
Debian Release: 6.0.6
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages apache2 depends on:
ii  apache2-mpm-prefork    2.2.16-6+squeeze8 Apache HTTP Server -
traditional n
ii  apache2.2-common       2.2.16-6+squeeze8 Apache HTTP Server common
files

apache2 recommends no packages.

apache2 suggests no packages.

Versions of packages apache2.2-common depends on:
ii  apache2-utils          2.2.16-6+squeeze8 utility programs for
webservers
ii  apache2.2-bin          2.2.16-6+squeeze8 Apache HTTP Server common
binary f
ii  libmagic1              5.04-5+squeeze2   File type determination
library us
ii  lsb-base               3.2-23.2squeeze1  Linux Standard Base 3.2 init
scrip
ii  mime-support           3.48-1            MIME files 'mime.types' &
'mailcap
ii  perl                   5.10.1-17squeeze3 Larry Wall's Practical
Extraction
ii  procps                 1:3.2.8-9squeeze1 /proc file system utilities

-- no debconf information



after restarting apache2, I see:

# netstat -tanp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State 
    PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
    1415/sshd
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN
    7985/master
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN
    5908/mysqld
tcp        0      0 10.52.152.164:22        10.52.81.146:49538     
ESTABLISHED 1433/0
tcp        0      0 10.52.152.164:22        10.52.81.146:50363     
ESTABLISHED 10488/2
tcp        0      0 10.52.152.164:22        10.52.81.146:49909     
ESTABLISHED 4229/1
tcp6       0      0 :::80                   :::*                    LISTEN
    10525/apache2
tcp6       0      0 :::22                   :::*                    LISTEN
    1415/sshd

ports.conf is default:
NameVirtualHost *:80
Listen 80


So I did a
"echo net.ipv6.conf.all.disable_ipv6=1 > /etc/sysctl.d/disableipv6.conf &&
reboot" with the following result:

# netstat -tanp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State 
    PID/Program name
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN
    1249/apache2
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
    1521/sshd
tcp        0      0 0.0.0.0:25              0.0.0.0:*               LISTEN
    1655/master
tcp        0      0 127.0.0.1:3306          0.0.0.0:*               LISTEN
    1489/mysqld
tcp        0     52 10.52.152.164:22        10.52.81.146:50385     
ESTABLISHED 1742/0