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    CentOS 7 VM on Hyper-V losing DHCP assigned address

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    centos 7 dhcp failed hyper-v chrony
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    • dafyreD
      dafyre @JaredBusch
      last edited by

      @JaredBusch said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

      @dafyre said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

      Do you have DHCP server set to give this server a specific IP?

      It is a DHCP reservation yes.

      I could obviously make this static, but i hate static, because what if I change the network scope or DNS or something. Too much to manually update in that instance.

      Also this is NOT the first CentOS 7 system I have seen this on. This is the second one used for ownCloud, and I have another that is simply a FTP server for some old backups that has done this in the past.

      All three of the above systems are at different clients sites. with different servers and networks. All three are on Hyper-V though.
      Those two systems have not done this recently, but this system is doing it daily now.

      Is your DHCP server on the same Hyper-V server?

      Also, what kind of network switch is it connected to?

      JaredBuschJ 1 Reply Last reply Reply Quote 0
      • JaredBuschJ
        JaredBusch @dafyre
        last edited by

        @dafyre said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

        @JaredBusch said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

        @dafyre said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

        Do you have DHCP server set to give this server a specific IP?

        It is a DHCP reservation yes.

        I could obviously make this static, but i hate static, because what if I change the network scope or DNS or something. Too much to manually update in that instance.

        Also this is NOT the first CentOS 7 system I have seen this on. This is the second one used for ownCloud, and I have another that is simply a FTP server for some old backups that has done this in the past.

        All three of the above systems are at different clients sites. with different servers and networks. All three are on Hyper-V though.
        Those two systems have not done this recently, but this system is doing it daily now.

        Is your DHCP server on the same Hyper-V server?

        Also, what kind of network switch is it connected to?

        What part of happens on three different networks did you not grasp?

        dafyreD 1 Reply Last reply Reply Quote 0
        • dafyreD
          dafyre @JaredBusch
          last edited by

          @JaredBusch said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

          @dafyre said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

          @JaredBusch said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

          @dafyre said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

          Do you have DHCP server set to give this server a specific IP?

          It is a DHCP reservation yes.

          I could obviously make this static, but i hate static, because what if I change the network scope or DNS or something. Too much to manually update in that instance.

          Also this is NOT the first CentOS 7 system I have seen this on. This is the second one used for ownCloud, and I have another that is simply a FTP server for some old backups that has done this in the past.

          All three of the above systems are at different clients sites. with different servers and networks. All three are on Hyper-V though.
          Those two systems have not done this recently, but this system is doing it daily now.

          Is your DHCP server on the same Hyper-V server?

          Also, what kind of network switch is it connected to?

          What part of happens on three different networks did you not grasp?

          In one eye, out the other, I reckon.

          What does your DHCP server show when you restart the network services on the ownCloud box?

          JaredBuschJ 1 Reply Last reply Reply Quote 0
          • JaredBuschJ
            JaredBusch @dafyre
            last edited by JaredBusch

            @dafyre haven't looked. when i restart i get the address. so i would assume it is all good. I guess the server log can be checked for the time of failure though.

            1 Reply Last reply Reply Quote 1
            • momurdaM
              momurda
              last edited by

              Is this maybe something that has happened over time to these servers as a result of updates? Nowadays the network interfaces are using a different naming scheme, starting in systemd v197. The naming of the interfaces are usually enox ensx, others unless disabled by various methods, ethx names are last in line to be used.

              https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/

              dafyreD 1 Reply Last reply Reply Quote 0
              • dafyreD
                dafyre @momurda
                last edited by

                @momurda said in CentOS 7 VM on Hyper-V losing DHCP assigned address:

                Is this maybe something that has happened over time to these servers as a result of updates? Nowadays the network interfaces are using a different naming scheme, starting in systemd v197. The naming of the interfaces are usually enox ensx, others unless disabled by various methods, ethx names are last in line to be used.

                https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/

                @JaredBusch fixed his interface name to always use eth0 on this server.

                1 Reply Last reply Reply Quote 0
                • JaredBuschJ
                  JaredBusch
                  last edited by

                  This is still a problem everywhere that I have Hyper-V Server 2012 R2 or Server 2012 R2 + Hyper-V.

                  It is very intermittent and It has been easier to just pop in and kick the service.
                  But now I have the time to handle this and I need to get this figured out.

                  Today I have a specific VM down that also went down yesterday. There are 2 other CentOS 7 VMs on this same server that are not down right now.

                  This VM went down yesterday also.

                  1 Reply Last reply Reply Quote 0
                  • JaredBuschJ
                    JaredBusch
                    last edited by

                    0_1485362583958_upload-109b49db-aa05-47e4-a71e-19e5b0efdedb

                    The ownCloud instance is the one in quesiton today. It was rebooted yesterday because after getting alerted to it being down, I also updated ownCloud from 9.0.x to 9.1.x and then gave it a reboot for good measure.

                    As you can see everything else was rebooted 2 days ago. Because I rebooted the entire hypervisor (Hyper-V Server 2012 R2) on Sunday for updates.

                    0_1485362842946_upload-f3743a3d-9a58-4124-8a28-925b43eed3b1

                    This is the entire DHCP lease list. You can see it is not a large site.
                    0_1485363143422_upload-8ca29cad-2f05-44e0-8ffe-9847973265e1

                    1 Reply Last reply Reply Quote 0
                    • JaredBuschJ
                      JaredBusch
                      last edited by JaredBusch

                      And the same problem that I had before. Bad NTP.

                      0_1485363690487_upload-84fba01a-de24-4f1c-b510-2caceca2b190

                      But this time I am only using two internal sources. There is not a third internal source available at this site to have a proper witness.

                      1 Reply Last reply Reply Quote 0
                      • JaredBuschJ
                        JaredBusch
                        last edited by

                        Edited chrony to use 3 external servers and rebooted..

                        # These servers were defined in the installation:
# server 10.201.1.7 iburst
# server 10.201.1.1 iburst
server 0.us.pool.ntp.org iburst
server 1.us.pool.ntp.org iburst
server 2.us.pool.ntp.org iburst
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).

                        /var/log/messages:Jan 26 11:55:07 owncloud chronyd[617]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP $
/var/log/messages:Jan 26 11:55:07 owncloud chronyd[617]: Frequency -22.354 +/- 0.114 ppm read from /var/lib/chrony/drift
/var/log/messages:Jan 25 11:06:29 owncloud chronyd[617]: Selected source 108.61.73.244
/var/log/messages:Jan 25 11:06:29 owncloud chronyd[617]: System clock wrong by -89327.780923 seconds, adjustment started
/var/log/messages:Jan 25 11:06:29 owncloud chronyd[617]: System clock was stepped by -89327.780923 seconds
                        1 Reply Last reply Reply Quote 0
                        • JaredBuschJ
                          JaredBusch
                          last edited by

                          Seriously, are there issues with Chrony?

                          1 Reply Last reply Reply Quote 0
                          • JaredBuschJ
                            JaredBusch
                            last edited by gjacobse

                            Server a spun up a month ago for community.bundystl.com just was unreachable.

                            Guess what.. WTF 4 active damned servers listed... why can it not stay f***ing working?

                            [root@bna-cmty ~]# nano /etc/chrony.conf
# These servers were defined in the installation:
server 0.centos.pool.ntp.org iburst
server 1.centos.pool.ntp.org iburst
server 2.centos.pool.ntp.org iburst
server 3.centos.pool.ntp.org iburst
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).

                            [root@bna-cmty ~]# grep chrony /var/log/messages*
/var/log/messages:Jan 22 20:15:23 bna-cmty chronyd[621]: Selected source 74.120.81.219
/var/log/messages:Feb 14 02:13:15 bna-cmty chronyd[618]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
/var/log/messages:Feb 14 02:13:15 bna-cmty chronyd[618]: Frequency -18.365 +/- 0.044 ppm read from /var/lib/chrony/drift
/var/log/messages:Jan 25 21:01:26 bna-cmty chronyd[618]: Selected source 104.232.3.3
/var/log/messages:Jan 25 21:01:26 bna-cmty chronyd[618]: System clock wrong by -1660320.927108 seconds, adjustment started
/var/log/messages:Jan 25 21:01:26 bna-cmty chronyd[618]: System clock was stepped by -1660320.927108 seconds
/var/log/messages:Jan 25 21:02:31 bna-cmty chronyd[618]: Selected source 129.250.35.251
/var/log/messages:Jan 26 05:29:06 bna-cmty chronyd[618]: Can't synchronise: no selectable sources
/var/log/messages:Jan 28 00:09:15 bna-cmty chronyd[618]: Source 104.232.3.3 offline
/var/log/messages:Jan 28 00:09:15 bna-cmty chronyd[618]: Source 129.250.35.251 offline
/var/log/messages:Jan 28 00:09:15 bna-cmty chronyd[618]: Source 104.245.33.76 offline
/var/log/messages:Jan 28 00:09:15 bna-cmty chronyd[618]: Source 66.228.42.59 offline
/var/log/messages:Jan 28 00:09:15 bna-cmty chronyd[618]: Source 104.232.3.3 online
/var/log/messages:Jan 28 00:09:15 bna-cmty chronyd[618]: Source 129.250.35.251 online
/var/log/messages:Jan 28 00:09:15 bna-cmty chronyd[618]: Source 104.245.33.76 online
/var/log/messages:Jan 28 00:09:15 bna-cmty chronyd[618]: Source 66.228.42.59 online
/var/log/messages:Jan 28 00:09:16 bna-cmty chronyd[618]: Selected source 129.250.35.251
/var/log/messages-20170101:Dec 25 23:04:57 bna-cmty yum[37947]: Updated: chrony-2.1.1-4.el7.centos.x86_64
/var/log/messages-20170101:Dec 25 23:06:33 bna-cmty chronyd[736]: chronyd exiting
/var/log/messages-20170101:Dec 25 23:06:33 bna-cmty chronyd[4840]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
/var/log/messages-20170101:Dec 25 23:06:33 bna-cmty chronyd[4840]: Frequency -17.944 +/- 0.124 ppm read from /var/lib/chrony/drift
/var/log/messages-20170101:Dec 25 23:06:38 bna-cmty chronyd[4840]: Selected source 192.155.90.13
/var/log/messages-20170101:Jan 19 00:13:55 bna-cmty chronyd[638]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
/var/log/messages-20170101:Jan 19 00:13:56 bna-cmty chronyd[638]: Frequency -17.944 +/- 0.136 ppm read from /var/lib/chrony/drift
/var/log/messages-20170101:Dec 26 00:39:42 bna-cmty chronyd[638]: Selected source 209.50.48.237
/var/log/messages-20170101:Dec 26 00:39:42 bna-cmty chronyd[638]: System clock wrong by -2072062.504299 seconds, adjustment started
/var/log/messages-20170101:Dec 26 00:39:42 bna-cmty chronyd[638]: System clock was stepped by -2072062.504299 seconds
/var/log/messages-20170101:Dec 26 02:37:08 bna-cmty chronyd[638]: Selected source 66.151.147.38
/var/log/messages-20170101:Dec 26 09:17:31 bna-cmty chronyd[638]: Can't synchronise: no selectable sources
/var/log/messages-20170101:Dec 26 15:03:37 bna-cmty chronyd[638]: Source 74.120.8.2 offline
/var/log/messages-20170101:Dec 26 15:03:37 bna-cmty chronyd[638]: Source 66.151.147.38 offline
/var/log/messages-20170101:Dec 26 15:03:37 bna-cmty chronyd[638]: Source 66.135.44.92 offline
/var/log/messages-20170101:Dec 26 15:03:37 bna-cmty chronyd[638]: Source 209.50.48.237 offline
/var/log/messages-20170101:Dec 26 15:03:38 bna-cmty chronyd[638]: Source 74.120.8.2 online
/var/log/messages-20170101:Dec 26 15:03:38 bna-cmty chronyd[638]: Source 66.151.147.38 online
/var/log/messages-20170101:Dec 26 15:03:38 bna-cmty chronyd[638]: Source 66.135.44.92 online
/var/log/messages-20170101:Dec 26 15:03:38 bna-cmty chronyd[638]: Source 209.50.48.237 online
/var/log/messages-20170101:Dec 26 15:03:38 bna-cmty chronyd[638]: Selected source 209.50.48.237
/var/log/messages-20170101:Dec 26 18:04:47 bna-cmty chronyd[638]: Selected source 66.151.147.38
/var/log/messages-20170101:Dec 27 17:55:13 bna-cmty chronyd[638]: Selected source 209.50.48.237
/var/log/messages-20170101:Dec 28 07:08:18 bna-cmty chronyd[638]: Selected source 66.151.147.38
/var/log/messages-20170101:Dec 28 11:35:31 bna-cmty chronyd[638]: Selected source 209.50.48.237
/var/log/messages-20170101:Dec 28 18:03:54 bna-cmty chronyd[638]: Selected source 66.151.147.38
/var/log/messages-20170101:Dec 30 20:46:01 bna-cmty chronyd[638]: Selected source 209.50.48.237
/var/log/messages-20170101:Dec 31 04:48:48 bna-cmty chronyd[638]: Selected source 66.151.147.38
/var/log/messages-20170101:Dec 31 13:00:24 bna-cmty chronyd[638]: System clock status set to insert leap second
/var/log/messages-20170101:Dec 31 18:00:01 bna-cmty chronyd[638]: System clock status set to not insert/delete leap second
/var/log/messages-20170101:Dec 31 18:01:48 bna-cmty chronyd[638]: Source 74.120.8.2 replaced with 69.89.207.99
/var/log/messages-20170101:Dec 31 18:08:16 bna-cmty chronyd[638]: Selected source 69.89.207.99
/var/log/messages-20170109:Jan 18 06:33:17 bna-cmty chronyd[621]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
/var/log/messages-20170109:Jan 18 06:33:17 bna-cmty chronyd[621]: Frequency -18.334 +/- 0.010 ppm read from /var/lib/chrony/drift
/var/log/messages-20170109:Jan  6 15:37:26 bna-cmty chronyd[621]: Selected source 69.89.207.99
/var/log/messages-20170109:Jan  6 15:37:26 bna-cmty chronyd[621]: System clock wrong by -1004160.299142 seconds, adjustment started
/var/log/messages-20170109:Jan  6 15:37:26 bna-cmty chronyd[621]: System clock was stepped by -1004160.299142 seconds
/var/log/messages-20170109:Jan  6 22:08:29 bna-cmty chronyd[621]: Source 198.55.111.50 offline
/var/log/messages-20170109:Jan  6 22:08:29 bna-cmty chronyd[621]: Source 204.2.134.162 offline
/var/log/messages-20170109:Jan  6 22:08:29 bna-cmty chronyd[621]: Source 74.120.81.219 offline
/var/log/messages-20170109:Jan  6 22:08:29 bna-cmty chronyd[621]: Source 69.89.207.99 offline
/var/log/messages-20170109:Jan  6 22:08:29 bna-cmty chronyd[621]: Can't synchronise: no selectable sources
/var/log/messages-20170109:Jan  6 22:08:30 bna-cmty chronyd[621]: Source 198.55.111.50 online
/var/log/messages-20170109:Jan  6 22:08:30 bna-cmty chronyd[621]: Source 204.2.134.162 online
/var/log/messages-20170109:Jan  6 22:08:30 bna-cmty chronyd[621]: Source 69.89.207.99 online
/var/log/messages-20170109:Jan  6 22:08:30 bna-cmty chronyd[621]: Source 74.120.81.219 online
/var/log/messages-20170109:Jan  6 22:08:30 bna-cmty chronyd[621]: Selected source 69.89.207.99
                            1 Reply Last reply Reply Quote 0
                            • ObsolesceO
                              Obsolesce
                              last edited by

                              Is there a specific reason I missed why you arent using the vm integration service time sync with the host?

                              Could you install the latest hyperV LIS on the linux vms, enable the guest time sync, and use windows/microsoft time sync on the host if its not on the domain?

                              1 Reply Last reply Reply Quote 0
                              • stacksofplatesS
                                stacksofplates
                                last edited by stacksofplates

                                I'm amazed that just restarting the service fixes the issue. I wonder if the hardware clock isn't being updated and the skew is too great so Chrony just gives up.

                                If you install ntpdate and enable it, it will update the hw clock every 11 minutes. I don't think it's installed by default with the minimal installs.

                                You could also just go back to ntpd. It's still available and might not have the issue. It also has a file under /etc/sysconfig/ntpd where you can set ntpd to update the hw clock.

                                JaredBuschJ 1 Reply Last reply Reply Quote 0
                                • JaredBuschJ
                                  JaredBusch
                                  last edited by

                                  Another server this morning.

                                  /var/log/messages:Jan 31 02:22:57 nginxproxy chronyd[649]: Frequency -15.399 +/- 0.022 ppm read from /var/lib/chrony/drift
/var/log/messages:Jan 29 21:37:01 nginxproxy chronyd[649]: Selected source 208.75.88.4
/var/log/messages:Jan 29 21:37:01 nginxproxy chronyd[649]: System clock wrong by -103565.091462 seconds, adjustment started
/var/log/messages:Jan 29 21:37:01 nginxproxy chronyd[649]: System clock was stepped by -103565.091462 seconds
/var/log/messages:Jan 29 21:38:07 nginxproxy chronyd[649]: Selected source 138.236.128.112
/var/log/messages:Jan 29 21:39:13 nginxproxy chronyd[649]: Selected source 208.75.88.4
/var/log/messages:Jan 29 23:34:35 nginxproxy chronyd[649]: Selected source 10.254.0.1
/var/log/messages:Jan 30 06:16:14 nginxproxy chronyd[649]: Can't synchronise: no selectable sources
/var/log/messages:Jan 30 08:35:35 nginxproxy chronyd[649]: Source 138.236.128.112 offline
/var/log/messages:Jan 30 08:35:35 nginxproxy chronyd[649]: Source 10.254.0.1 offline
/var/log/messages:Jan 30 08:35:35 nginxproxy chronyd[649]: Source 204.2.134.162 offline
/var/log/messages:Jan 30 08:35:35 nginxproxy chronyd[649]: Source 208.75.88.4 offline
/var/log/messages:Jan 30 08:35:37 nginxproxy chronyd[649]: Source 138.236.128.112 online
/var/log/messages:Jan 30 08:35:37 nginxproxy chronyd[649]: Source 10.254.0.1 online
/var/log/messages:Jan 30 08:35:37 nginxproxy chronyd[649]: Source 204.2.134.162 online
/var/log/messages:Jan 30 08:35:37 nginxproxy chronyd[649]: Source 208.75.88.4 online
/var/log/messages:Jan 30 08:35:37 nginxproxy chronyd[649]: Selected source 10.254.0.1
/

                                  server 10.254.0.1 iburst
server 1.centos.pool.ntp.org iburst
server 2.centos.pool.ntp.org iburst
server 3.centos.pool.ntp.org iburst
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
                                  1 Reply Last reply Reply Quote 0
                                  • JaredBuschJ
                                    JaredBusch
                                    last edited by

                                    I am slowly but surely changing all the servers to the following

                                    # These servers were defined in the installation:
server 0.us.pool.ntp.org iburst
server 1.us.pool.ntp.org iburst
server 2.us.pool.ntp.org iburst
server 3.us.pool.ntp.org iburst
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
                                    1 Reply Last reply Reply Quote 1
                                    • JaredBuschJ
                                      JaredBusch
                                      last edited by

                                      So, the brand new server I setup on Sunday was just offline.

                                      The uptime on this server is only 15 hours because I shut it down yesterday to make a change to memory. and it was set to use the us pool when created.

                                      [root@bnasc ~]# uptime
 09:05:30 up 15:13,  3 users,  load average: 0.02, 0.02, 0.05
[root@bnasc ~]# cat /etc/chrony.conf
# These servers were defined in the installation:
server 0.us.pool.ntp.org iburst
server 1.us.pool.ntp.org iburst
server 2.us.pool.ntp.org iburst
server 3.us.pool.ntp.org iburst
# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).

                                      0_1485961470769_upload-84cba2f2-aff1-4ed3-9fe6-60fbd8601e0d

                                      [root@bnasc ~]# grep chrony /var/log/messages*
Jan 29 12:02:30 bnasc chronyd[628]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
Jan 29 12:02:30 bnasc chronyd[628]: Generated key 1
Jan 29 11:52:40 bnasc chronyd[628]: Selected source 74.120.8.2
Jan 29 11:52:40 bnasc chronyd[628]: System clock wrong by -599.208892 seconds, adjustment started
Jan 29 11:52:40 bnasc chronyd[628]: System clock was stepped by -599.208892 seconds
Jan 29 11:54:52 bnasc chronyd[628]: Selected source 4.53.160.75
Jan 29 11:55:45 bnasc yum[10204]: Updated: chrony-2.1.1-4.el7.centos.x86_64
Jan 29 11:55:58 bnasc chronyd[628]: chronyd exiting
Jan 29 11:55:59 bnasc chronyd[11345]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
Jan 29 11:55:59 bnasc chronyd[11345]: Frequency -15.874 +/- 5.866 ppm read from /var/lib/chrony/drift
Jan 29 11:56:04 bnasc chronyd[11345]: Selected source 216.218.254.202
Jan 29 11:57:11 bnasc chronyd[11345]: Selected source 132.163.4.102
Jan 29 17:23:45 bnasc chronyd[11345]: Source 38.229.71.1 offline
Jan 29 17:23:45 bnasc chronyd[11345]: Source 108.59.2.24 offline
Jan 29 17:23:45 bnasc chronyd[11345]: Source 216.218.254.202 offline
Jan 29 17:23:45 bnasc chronyd[11345]: Source 132.163.4.102 offline
Jan 29 17:23:45 bnasc chronyd[11345]: Can't synchronise: no selectable sources
Jan 29 17:23:46 bnasc chronyd[11345]: Source 38.229.71.1 online
Jan 29 17:23:46 bnasc chronyd[11345]: Source 132.163.4.102 online
Jan 29 17:23:46 bnasc chronyd[11345]: Source 108.59.2.24 online
Jan 29 17:23:46 bnasc chronyd[11345]: Source 216.218.254.202 online
Jan 29 17:23:47 bnasc chronyd[11345]: Selected source 132.163.4.102
Jan 29 23:39:31 bnasc chronyd[622]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
Jan 29 23:39:31 bnasc chronyd[622]: Frequency -15.386 +/- 0.007 ppm read from /var/lib/chrony/drift
Jan 29 17:46:38 bnasc chronyd[622]: Selected source 71.210.146.228
Jan 29 17:46:38 bnasc chronyd[622]: System clock wrong by -21182.172665 seconds, adjustment started
Jan 29 17:46:38 bnasc chronyd[622]: System clock was stepped by -21182.172665 seconds
Jan 30 01:17:52 bnasc chronyd[616]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
Jan 30 01:17:52 bnasc chronyd[616]: Frequency -15.397 +/- 0.041 ppm read from /var/lib/chrony/drift
Jan 29 21:37:17 bnasc chronyd[616]: Selected source 45.127.112.2
Jan 29 21:37:17 bnasc chronyd[616]: System clock wrong by -13244.251559 seconds, adjustment started
Jan 29 21:37:17 bnasc chronyd[616]: System clock was stepped by -13244.251559 seconds
Jan 29 21:49:12 bnasc chronyd[616]: Selected source 4.53.160.75
Jan 30 01:13:39 bnasc chronyd[616]: Selected source 45.127.112.2
Jan 30 06:23:50 bnasc chronyd[616]: Can't synchronise: no selectable sources
Jan 30 07:32:52 bnasc chronyd[616]: Selected source 45.127.112.2
Jan 30 14:38:54 bnasc chronyd[616]: chronyd exiting
Jan 31 07:37:15 bnasc chronyd[615]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
Jan 31 07:37:15 bnasc chronyd[615]: Frequency -15.340 +/- 0.046 ppm read from /var/lib/chrony/drift
Jan 30 14:42:50 bnasc chronyd[615]: Selected source 167.88.117.204
Jan 30 14:42:50 bnasc chronyd[615]: System clock wrong by -60875.125649 seconds, adjustment started
Jan 30 14:42:50 bnasc chronyd[615]: System clock was stepped by -60875.125649 seconds
Jan 30 14:46:04 bnasc chronyd[615]: Selected source 173.255.246.13
Jan 30 14:50:52 bnasc chronyd[614]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
Jan 30 14:50:52 bnasc chronyd[614]: Frequency -15.237 +/- 0.675 ppm read from /var/lib/chrony/drift
Jan 30 14:50:44 bnasc chronyd[614]: Selected source 74.120.81.219
Jan 30 14:50:44 bnasc chronyd[614]: System clock wrong by -16.271980 seconds, adjustment started
Jan 30 14:50:44 bnasc chronyd[614]: System clock was stepped by -16.271980 seconds
Jan 30 14:51:50 bnasc chronyd[614]: Selected source 204.2.134.163
Jan 30 14:52:55 bnasc chronyd[614]: Selected source 74.120.81.219
Jan 30 17:02:29 bnasc chronyd[614]: chronyd exiting
Jan 30 19:05:34 bnasc chronyd[633]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
Jan 30 19:05:34 bnasc chronyd[633]: Frequency -15.245 +/- 0.393 ppm read from /var/lib/chrony/drift
Jan 30 17:04:13 bnasc chronyd[633]: Selected source 45.79.111.114
Jan 30 17:04:13 bnasc chronyd[633]: System clock wrong by -7289.265261 seconds, adjustment started
Jan 30 17:04:13 bnasc chronyd[633]: System clock was stepped by -7289.265261 seconds
Jan 31 07:57:55 bnasc chronyd[633]: Selected source 184.105.182.7
Jan 31 13:50:56 bnasc chronyd[633]: Selected source 45.79.111.114
Jan 31 17:50:41 bnasc chronyd[633]: chronyd exiting
Feb  1 18:29:46 bnasc chronyd[632]: chronyd version 2.1.1 starting (+CMDMON +NTP +REFCLOCK +RTC +PRIVDROP +DEBUG +ASYNCDNS +IPV6 +SECHASH)
Feb  1 18:29:47 bnasc chronyd[632]: Frequency -15.386 +/- 0.029 ppm read from /var/lib/chrony/drift
Jan 31 17:52:24 bnasc chronyd[632]: Selected source 216.218.254.202
Jan 31 17:52:24 bnasc chronyd[632]: System clock wrong by -88651.453210 seconds, adjustment started
Jan 31 17:52:24 bnasc chronyd[632]: System clock was stepped by -88651.453210 seconds
Jan 31 17:53:29 bnasc chronyd[632]: Selected source 199.102.46.76
Jan 31 18:04:17 bnasc chronyd[632]: Source 173.71.80.235 replaced with 74.82.59.143
Feb  1 02:26:09 bnasc chronyd[632]: Can't synchronise: no selectable sources
Feb  1 09:00:20 bnasc chronyd[632]: Source 107.151.174.199 offline
Feb  1 09:00:20 bnasc chronyd[632]: Source 216.218.254.202 offline
Feb  1 09:00:20 bnasc chronyd[632]: Source 199.102.46.76 offline
Feb  1 09:00:20 bnasc chronyd[632]: Source 74.82.59.143 offline
Feb  1 09:00:22 bnasc chronyd[632]: Source 107.151.174.199 online
Feb  1 09:00:22 bnasc chronyd[632]: Source 216.218.254.202 online
Feb  1 09:00:22 bnasc chronyd[632]: Source 199.102.46.76 online
Feb  1 09:00:22 bnasc chronyd[632]: Source 74.82.59.143 online
Feb  1 09:00:22 bnasc chronyd[632]: Selected source 199.102.46.76
[root@bnasc ~]#

                                      So WTF is chrony shit or what?

                                      1 Reply Last reply Reply Quote 0
                                      • JaredBuschJ
                                        JaredBusch
                                        last edited by

                                        The DHCP server is set to a lease time of 6 hours.
                                        0_1485961850580_upload-bb4c5a9c-8912-4034-911f-f7293502b2ee

                                        Here is grep dhcp /var/log/messages and you can see the log timestamp going way ahead.

                                        Jan 31 15:42:17 bnasc NetworkManager[662]: <info>  [1485898937.9740] dhcp4 (eth0):   address 10.254.0.36
Jan 31 15:42:17 bnasc NetworkManager[662]: <info>  [1485898937.9742] dhcp4 (eth0):   plen 24 (255.255.255.0)
Jan 31 15:42:17 bnasc NetworkManager[662]: <info>  [1485898937.9742] dhcp4 (eth0):   gateway 10.254.0.1
Jan 31 15:42:17 bnasc NetworkManager[662]: <info>  [1485898937.9742] dhcp4 (eth0):   server identifier 10.254.0.21
Jan 31 15:42:17 bnasc NetworkManager[662]: <info>  [1485898937.9743] dhcp4 (eth0):   lease time 21600
Jan 31 15:42:17 bnasc NetworkManager[662]: <info>  [1485898937.9743] dhcp4 (eth0):   nameserver '10.254.0.21'
Jan 31 15:42:17 bnasc NetworkManager[662]: <info>  [1485898937.9743] dhcp4 (eth0):   nameserver '10.254.0.27'
Jan 31 15:42:17 bnasc NetworkManager[662]: <info>  [1485898937.9743] dhcp4 (eth0):   domain name 'ad.bundystl.com'
Jan 31 15:42:17 bnasc NetworkManager[662]: <info>  [1485898937.9743] dhcp4 (eth0): state changed bound -> bound
Jan 31 15:42:17 bnasc nm-dispatcher: req:1 'dhcp4-change' [eth0]: new request (3 scripts)
Jan 31 15:42:17 bnasc nm-dispatcher: req:1 'dhcp4-change' [eth0]: start running ordered scripts...
Feb  1 18:29:49 bnasc NetworkManager[659]: <info>  [1485995389.2647] dhcp-init: Using DHCP client 'dhclient'
Feb  1 18:29:49 bnasc NetworkManager[659]: <info>  [1485995389.9799] dhcp4 (eth0): activation: beginning transaction (timeout in 45 seconds)
Feb  1 18:29:49 bnasc NetworkManager[659]: <info>  [1485995389.9932] dhcp4 (eth0): dhclient started with pid 761
Feb  1 18:29:50 bnasc NetworkManager[659]: <info>  [1485995390.2462] dhcp4 (eth0):   address 10.254.0.36
Feb  1 18:29:50 bnasc NetworkManager[659]: <info>  [1485995390.2462] dhcp4 (eth0):   plen 24 (255.255.255.0)
Feb  1 18:29:50 bnasc NetworkManager[659]: <info>  [1485995390.2463] dhcp4 (eth0):   gateway 10.254.0.1
Feb  1 18:29:50 bnasc NetworkManager[659]: <info>  [1485995390.2463] dhcp4 (eth0):   server identifier 10.254.0.21
Feb  1 18:29:50 bnasc NetworkManager[659]: <info>  [1485995390.2463] dhcp4 (eth0):   lease time 21600
Feb  1 18:29:50 bnasc NetworkManager[659]: <info>  [1485995390.2463] dhcp4 (eth0):   nameserver '10.254.0.21'
Feb  1 18:29:50 bnasc NetworkManager[659]: <info>  [1485995390.2463] dhcp4 (eth0):   nameserver '10.254.0.27'
Feb  1 18:29:50 bnasc NetworkManager[659]: <info>  [1485995390.2463] dhcp4 (eth0):   domain name 'ad.bundystl.com'
Feb  1 18:29:50 bnasc NetworkManager[659]: <info>  [1485995390.2464] dhcp4 (eth0): state changed unknown -> bound
Feb  1 09:00:20 bnasc NetworkManager[659]: <info>  [1485961220.8147] dhcp4 (eth0): canceled DHCP transaction, DHCP client pid 761
Feb  1 09:00:20 bnasc NetworkManager[659]: <info>  [1485961220.8147] dhcp4 (eth0): state changed bound -> done
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.0533] dhcp4 (eth0): activation: beginning transaction (timeout in 45 seconds)
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.0577] dhcp4 (eth0): dhclient started with pid 20673
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.1079] dhcp4 (eth0):   address 10.254.0.36
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.1080] dhcp4 (eth0):   plen 24 (255.255.255.0)
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.1080] dhcp4 (eth0):   gateway 10.254.0.1
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.1080] dhcp4 (eth0):   server identifier 10.254.0.21
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.1080] dhcp4 (eth0):   lease time 21600
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.1080] dhcp4 (eth0):   nameserver '10.254.0.21'
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.1080] dhcp4 (eth0):   nameserver '10.254.0.27'
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.1081] dhcp4 (eth0):   domain name 'ad.bundystl.com'
Feb  1 09:00:22 bnasc NetworkManager[659]: <info>  [1485961222.1081] dhcp4 (eth0): state changed unknown -> bound
                                        1 Reply Last reply Reply Quote 0
                                        • JaredBuschJ
                                          JaredBusch
                                          last edited by

                                          Nothing in the DHCP Server event logs except the reservation creation and deletion informational events.

                                          0_1485962795906_upload-35677eb9-1963-4c69-adf2-a2fe500b6fa7

                                          1 Reply Last reply Reply Quote 0
                                          • JaredBuschJ
                                            JaredBusch
                                            last edited by

                                            I have no clue where to go with this now. Any recommendations would be greatly appreciated.

                                            1 Reply Last reply Reply Quote 0
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