[systemd-devel] "sysctl.conf" applied too late

[Reindl Harald]

Am 08.02.2012 17:34, schrieb Bill Nottingham:
> Reindl Harald (h.reindl at thelounge.net) said: 
>> not network manager
>> classical configuration
>>
>> net.ipv6.conf.all.disable_ipv6 = 1
> 
> Your configuration is wrong, I believe. The rule at udev time is:
> 
> SUBSYSTEM=="net", KERNEL!="lo", RUN+="/lib/systemd/systemd-sysctl \
>  --prefix=/proc/sys/net/ipv4/conf/$name \
>  --prefix=/proc/sys/net/ipv4/neigh/$name \
>  --prefix=/proc/sys/net/ipv6/conf/$name \
>  --prefix=/proc/sys/net/ipv6/neigh/$name"
> 
> What's happening is you're setting 'all' on startup, which disables
> it for all interfaces at that time. But each interface later on creation
> gets the value from 'default', not all.
> 
> You want:
> 
> net.ipv6.conf.default.disable_ipv6 = 1
> instead of/in addition to what you have

hmm - does not change the behavior

a kernel boot-param would be nice but until know i did not
find any working one :-(

[root at rh:~]$ netstat -l | grep smb
tcp        0      0 0.0.0.0:445                 0.0.0.0:*                   LISTEN      1088/smbd
tcp        0      0 0.0.0.0:139                 0.0.0.0:*                   LISTEN      1088/smbd
tcp        0      0 :::445                      :::*                        LISTEN      1088/smbd
tcp        0      0 :::139                      :::*                        LISTEN      1088/smbd

[root at rh:~]$ netstat -l | grep ntp
udp        0      0 127.0.0.1:123               0.0.0.0:*                               1056/ntpd
udp        0      0 0.0.0.0:123                 0.0.0.0:*                               1056/ntpd
udp        0      0 :::123                      :::*                                    1056/ntpd

[root at rh:~]$ service smb restart
Redirecting to /bin/systemctl  restart smb.service
[root at rh:~]$ netstat -l | grep smb
tcp        0      0 0.0.0.0:445                 0.0.0.0:*                   LISTEN      3982/smbd
tcp        0      0 0.0.0.0:139                 0.0.0.0:*                   LISTEN      3982/smbd

[root at rh:~]$ cat /etc/sysctl.conf | grep ipv6
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1

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