Hello,
I am not sure to understand.
The previous conclusion was that the firewall did not let me go through.
Now, I have:
:::* 5704/chronyd
[root@Homere ~]# netstat -pna | grep :123
udp 0 0 193.49.194.196:35562 210.173.160.27:123 ESTABLISHED 5704/chronyd
udp 0 0 193.49.194.196:60225 210.173.160.57:123 ESTABLISHED 5704/chronyd
udp 0 0 193.49.194.196:36218 210.173.160.87:123 ESTABLISHED 5704/chronyd
udp 0 0 193.49.194.196:36803 178.32.54.53:123 ESTABLISHED 5704/chronyd
udp 0 0 193.49.194.196:57367 62.210.85.244:123 ESTABLISHED 5704/chronyd
udp 0 0 0.0.0.0:123 0.0.0.0:* 5704/chronyd
udp 0 0 193.49.194.196:57601 91.121.169.20:123 ESTABLISHED 5704/chronyd
udp 0 0 193.49.194.196:34907 195.83.66.158:123 ESTABLISHED 5704/chronyd
udp6 0 0 :::123 :::* 5704/chronyd
timedatectl
Local time: Tue 2015-09-08 19:46:24 CEST
Universal time: Tue 2015-09-08 17:46:24 UTC
RTC time: Tue 2015-09-08 17:46:24
Timezone: Europe/Paris (CEST, +0200)
NTP enabled: yes
NTP synchronized: yes
RTC in local TZ: no
DST active: yes
Last DST change: DST began at
Sun 2015-03-29 01:59:59 CET
Sun 2015-03-29 03:00:00 CEST
Next DST change: DST ends (the clock jumps one hour backwards) at
Sun 2015-10-25 02:59:59 CEST
Sun 2015-10-25 02:00:00 CET
traceroute -p 123 -U 123.204.45.116
traceroute to 123.204.45.116 (123.204.45.116), 30 hops max, 60 byte packets
1 cisco-dk.univ-littoral.fr (193.49.194.1) 1.768 ms 1.944 ms 2.151 ms
2 192.168.168.203 (192.168.168.203) 0.317 ms 0.417 ms 0.486 ms
3 * * *
4 * * *
It does not looks like that the connection with the time server is established.
However, it says:
NTP synchronized: yes
On the other side, the machine is 10 s beyond http://www.worldtimeserver.com/
Hence, I am confuse.
===========================================================================
Patrick DUPRÉ | | email: pdupre@xxxxxxx
Laboratoire de Physico-Chimie de l'Atmosphère | |
Université du Littoral-Côte d'Opale | |
Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44
189A, avenue Maurice Schumann | | 59140 Dunkerque, France
===========================================================================
> Sent: Tuesday, September 08, 2015 at 7:42 PM
> From: "John Pilkington" <J.Pilk@xxxxxxxxx>
> To: users@xxxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: NTP synchronized: no
>
> 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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