On 08/09/15 18:02, Rick Stevens wrote:
On 09/08/2015 03:27 AM, John Pilkington wrote:
On 08/09/15 10:52, Ed Greshko wrote:
On 09/08/15 17:29, Patrick Dupre wrote:
I cannot synchronize the date:
My undestanding is that it should be set by:
timedatectl set-ntp yes
Here, the results of some commands:
netstat -a |grep ntp
udp 0 0 localhost.localdo:51314 ns346276.ip-94-23-3:ntp
ESTABLISHED
udp 0 0 localhost.localdo:39994 tomia.ordimatic.net:ntp
ESTABLISHED
udp 0 0 localhost.localdo:45035 ntp.tuxfamily.net:ntp
ESTABLISHED
udp 0 0 localhost.localdo:49209 host3.nuagelibre.or:ntp
ESTABLISHED
warning, got bogus l2cap line.
That looks different: here's mine.
[john@HP_Box ~]$ netstat -a | grep ntp
udp 0 0 0.0.0.0:ntp 0.0.0.0:*
udp6 0 0 [::]:ntp [::]:*
[john@HP_Box ~]$ netstat -a | grep 323
udp 0 0 localhost:323 0.0.0.0:*
udp6 0 0 localhost:323 [::]:*
plus a few irrelevant responses.
but ...grep 123 shows nothing that looks relevant.
Quoting from the faq:
Perhaps you have a firewall set up in a way that blocks packets on port
323/udp. You need to amend the firewall configuration in this case.
ntp is UDP port 123 as is shown in your output. By default, netstat
will translate port numbers to services found in your /etc/services
file. If you want to verify it, try "netstat -apn | grep :123" and you
should see something on that port:
[root@prophead ~]# netstat -pna | grep :123
...
udp 0 0 192.168.1.50:58156 104.41.150.68:123
ESTABLISHED 841/chronyd
...
So you can see that chronyd is connected to 104.41.150.68 via UDP port 123.
Thanks Rick. On my system, ( which does have a working chrony setup) I
see:
$ uname -a
Linux HP_Box 3.10.0-229.11.1.el7.x86_64 #1 SMP Wed Aug 5 14:37:37 CDT
2015 x86_64 x86_64 x86_64 GNU/Linux
[john@HP_Box ~]$ netstat -pna | grep :123
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
udp 0 0 0.0.0.0:123 0.0.0.0:*
-
udp6 0 0 :::123 :::*
-
[john@HP_Box ~]$ su
Password:
[root@HP_Box john]# netstat -pna | grep :123
udp 0 0 0.0.0.0:123 0.0.0.0:*
692/chronyd
udp6 0 0 :::123 :::*
692/chronyd
[root@HP_Box john]# netstat -pna | grep :323
udp 0 0 127.0.0.1:323 0.0.0.0:*
692/chronyd
udp6 0 0 ::1:323 :::*
692/chronyd
[root@HP_Box john]# exit
exit
[john@HP_Box ~]$
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