[ntp:questions] help needed for ntpd ipv6 setup
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Thu Dec 2 03:09:34 UTC 2010
Marc-Andre Alpers wrote:
> Es schrieb horhe:
>> I think this is the same "bug" : http://bugs.gentoo.org/326209
>> I have got very similar problem.
> Thanks. This was the point. My Linux Kernel is grsec
> enabled by default.
> When i load a non grsec Kernel, then ntp works fine on ipv6.
A quick google shows plenty of potentially related results
.... with grsec NTPd as root IPv6 worked, NTPd as user IPv6 didn't ...
This problem occurs because ntpd does not have the needed
privileges to access /proc/net/if_inet6 when not run as
You can reconfigure to getthe same level of security by
deselecting CONFIG_GRKERNSEC_PROC_USER and selecting
You can then add the ntp user to the GID for the special
group to get it to read the needed info from /proc.
The above aside;
Have you tried a current NTPd 4.2.7 ?
In the last three years since the NTP 4.2.4p4
that you mentioned you were using,
a lot of things have been worked on,
IPv6 among them, e.g.
1.2082.4.156 IPv6 addresses in selecting default multicast source addresses.
1.2259 [Bug 1715] sntp utilitiesTest.IPv6Address failed.
1.2082.22.21 [Bug 1080] ntpd on ipv6 routers very chatty.
1.2082.4.97 [Bug 715] libisc Linux IPv6 interface iteration drops multicast flags.
1.2110.1.1 support for IPv6.
1.2082.4.41 Remove ipv6.c as unnecessary
1.2060.10.1 [Bug 1358] AIX 4.3 sntp/networking.c IPV6_JOIN_GROUP undeclared.
1.2060.3.1 [Bug 1343] lib/isc build breaks on systems without IPv6 headers.
1.2058 [Bug 1342] ignore|drop one IPv6 address on an interface blocks all
1.2037 fix ipv4/ipv6 which are not equivalent in the libopts sense
1.2026.1.1 [Bug 1324] support bracketed IPv6 numeric addresses for restrict.
1.2005 Ensure IPv6 localhost address ::1 is included in libisc's Windows IPv6
1.1935 [Bug 1272] gsoc_sntp IPv6 build problems under HP-UX 10.
1.1926 [Bug 1270] CID 70: gsoc_sntp recv_bcst_data mdevadr.ipv6mr_interface
1.1881.2.2 it safe to initialize ipv4_works and ipv6_works before init_io()
1.1881.2.1 3 weeks of changes including IPv6 on Windows which was
1.1873.1.1 some previously separate IPv4/IPv6 paths into a single codepath.
1.1875 [Bug 1200] Enable IPv6 in Windows port
1.1867 [Bug 320] restrict default should apply to both IPv4 and IPv6
1.1735.1.63 IPv6 interfaces were being looked for twice; fix bug 474
1.1735.4.4 [Bug 828] Fix IPv4/IPv6 address parsing
1.1739.1.6 hack ISC_PLATFORM_HAVEIPV6
1.1436.9.5 [Bug 977] Fix mismatching #ifdefs for builds without IPv6
1.1690 [Bug 977] Fix mismatching #ifdefs for builds without IPv6
1.1642 [Bug 828] correct IPv6 address parsing
1.1600 [Bug 771] compare scopeid if available for IPv6 addresses
1.1600 Bug 771: compare scopeid if available for IPv6 addresses
1.1379.1.49 when attempting to send to an IPv6 address of a local interface.
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