# Server time update problem **URL:** \ **Category:** SLES Networking\ **Created:** [May 22, 2012, 4:15pm UTC](https://forums.suse.com/t/server-time-update-problem/22650 "2012-05-22T16:15:01Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![danskemk](https://avatars.discourse-cdn.com/v4/letter/d/35a633/32.png) [@danskemk](https://forums.suse.com/u/danskemk)\ **Post date:** [May 22, 2012, 4:15pm UTC](https://forums.suse.com/t/server-time-update-problem/22650/1 "2012-05-22T16:15:01Z")
Hello, i have few servers with sles 11sp2 which have problems updating time from local server. After some investigation i found out that server is comunicating via high ports which are blocked cause servers are in dmz. Is there a way to force using 123 port. I’m trying to updiate via #ntpdate LANtimeserver or #sntp -P no -r LANtimeserver sntp: not enough valid responses received in time # i can see the time via, but still can’t force to update system time. server3:~ # ntpq -p remote refid st t when poll reach delay offset jitter \*LANtimeserver othertimeserver 4 u 62 64 377 0.907 -339.52 117.901 LOCAL(0) .LOCL. 10 l 31 64 377 0.000 0.000 0.001 any advise how can i force to update from time server. Only port available 123. Thanks in advance. ---
**Author:** ![malcolmlewis](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/malcolmlewis/32/11375_2.png) [@malcolmlewis](https://forums.suse.com/u/malcolmlewis)\ **Post date:** [May 23, 2012, 7:53am UTC](https://forums.suse.com/t/server-time-update-problem/22650/2 "2012-05-23T07:53:49Z")
> [@danskemk](#): > > Hello, > i have few servers with sles 11sp2 which have problems updating time > from local server. > After some investigation i found out that server is comunicating via > high ports which are blocked cause servers are in dmz. Is there a way to > force using 123 port. > > I’m trying to updiate via > #ntpdate LANtimeserver > or > #sntp -P no -r LANtimeserver > sntp: not enough valid responses received in time > > # i can see the time via, but still can’t force to update system time. server3:~ # ntpq -p remote refid st t when poll reach delay offset jitter > > \*LANtimeserver othertimeserver 4 u 62 64 377 0.907 -339.52 117.901 > LOCAL(0) .LOCL. 10 l 31 64 377 0.000 0.000 0.001 > > any advise how can i force to update from time server. Only port > available 123. > Thanks in advance. Hi I can’t see those options in the man page for sntp? Can you just try -d eg; ```auto sntp -d time-b.nist.gov 22 May 23:47:29 sntp[11950]: Started sntp Starting to read KoD file /var/db/ntp-kod... sntp sendpkt: Sending packet to 129.6.15.29... Packet sent. sntp recvpkt: packet received from 129.6.15.29 is not authentic. Authentication not enforced. sntp handle_pkt: Received 48 bytes from 29.6.15.29 sntp offset_calculation: t21: 0.031932 t34: -0.068505 delta: 0.100437 offset: -0.018287 2012-05-22 23:47:29.114995 (+0600) -0.018287 ``` – Cheers Malcolm °¿° (Linux Counter #276890) openSUSE 12.1 (x86\_64) Kernel 3.1.10-1.9-desktop up 6:58, 4 users, load average: 0.03, 0.05, 0.05 CPU Intel i5 CPU M520@2.40GHz | Intel Arrandale GPU ---
**Author:** ![danskemk](https://avatars.discourse-cdn.com/v4/letter/d/35a633/32.png) [@danskemk](https://forums.suse.com/u/danskemk)\ **Post date:** [May 23, 2012, 10:07am UTC](https://forums.suse.com/t/server-time-update-problem/22650/3 "2012-05-23T10:07:19Z")
[QUOTE]Hi I can’t see those options in the man page for sntp? Can you just try -d eg; [/QUOTE] Hello, server3:~ # sntp -d LANtimeserver Syntax: sntp [--help | -h | -?] [-v | -V | -W] [-q [ -f savefile] | [[ -F] { -r | -a } [-P prompt] [-l lockfile] ] [-c count] [-e minerr] [-E maxerr] [-d delay | -x [ separation] [-f savefile] ] [-4 | -6] [-u] [address(es)] ] In previous servers there was sles 10.4 and i used ntpdate and everything worked find, now it gives: ```auto !!!!!!!!!!!!!! WARNING !!!!!!!!!!!!!!!!!! The ntpdate program is deprecated and should not be used any more. To quote the upstream ntp developers: "The functionality ntpdate offered is now provided by the ntpd daemon itself. If you call ntpd with the command line option -q it will retrieve the current time and set it accordingly." Please check the Network Time Protocol (NTP) daemon man page and http://support.ntp.org/bin/view/Dev/DeprecatingNtpdate for further information. You can replace the ntpdate call with "rcntp ntptimeset" to achieve an inital poll of the servers specified in /etc/ntp.conf. The program /usr/sbin/sntp offers comparable functionality to ntpdate. Specifically sntp -P no -r pool.ntp.org is equivalent to ntpdate pool.ntp.org For further details please refer to the man page of sntp. ``` ---
**Author:** ![malcolmlewis](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/malcolmlewis/32/11375_2.png) [@malcolmlewis](https://forums.suse.com/u/malcolmlewis)\ **Post date:** [May 24, 2012, 6:12am UTC](https://forums.suse.com/t/server-time-update-problem/22650/4 "2012-05-24T06:12:57Z")
[QUOTE=danskemk][color=blue] > Hi > I can’t see those options in the man page for sntp? > > Can you just try -d eg; > [/color] Hello, server3:~ # sntp -d LANtimeserver Syntax: sntp [--help | -h | -?] [-v | -V | -W] [-q [ -f savefile] | [[ -F] { -r | -a } [-P prompt] [-l lockfile] ] [-c count] [-e minerr] [-E maxerr] [-d delay | -x [ separation] [-f savefile] ] [-4 | -6] [-u] [address(es)] ] In previous servers there was sles 10.4 and i used ntpdate and everything worked find, now it gives: ## Code: !!! WARNING !!! The ntpdate program is deprecated and should not be used any more. To quote the upstream ntp developers: “The functionality ntpdate offered is now provided by the ntpd daemon itself. If you call ntpd with the command line option -q it will retrieve the current time and set it accordingly.” Please check the Network Time Protocol (NTP) daemon man page and [http://support.ntp.org/bin/view/Dev/DeprecatingNtpdate](http://support.ntp.org/bin/view/Dev/DeprecatingNtpdate) for further information. You can replace the ntpdate call with “rcntp ntptimeset” to achieve an inital poll of the servers specified in /etc/ntp.conf. The program /usr/sbin/sntp offers comparable functionality to ntpdate. Specifically sntp -P no -r [pool.ntp.org](http://pool.ntp.org) is equivalent to ntpdate [pool.ntp.org](http://pool.ntp.org) For further details please refer to the man page of sntp. * * * [/QUOTE] Hi Ahh that will teach me to check the machine I’m on… 😉 It does seem a bit hit and miss, try adding either -v or -V ```auto bert:~ # sntp -V -P no -r pool.ntp.org sntp options: a=2 v=2 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= pool.ntp.org sntp: offset=0.004+/-0.048 disp=0.030 sntp: correction 0.004 +/- 0.030+0.048 secs - ignored bert:~ # sntp -v -P no -r pool.ntp.org sntp options: a=2 v=1 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= pool.ntp.org sntp: correction 0.004 +/- 0.030+0.049 secs - ignored bert:~ # sntp -v -P no -r time-a.nist.gov sntp options: a=2 v=1 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= time-a.nist.gov sntp: correction -0.014 +/- 0.000+0.074 secs - ignored bert:~ # sntp -P no -r time-a.nist.gov bert:~ # sntp -v -P no -r time-a.nist.gov sntp options: a=2 v=1 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= time-a.nist.gov sntp: correction -0.003 +/- 0.000+0.055 secs - ignored bert:~ # sntp -V -P no -r time-a.nist.gov sntp options: a=2 v=2 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= time-a.nist.gov sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: not enough valid responses received in time bert:~ # sntp -V -P no -r time-a.nist.gov sntp options: a=2 v=2 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= time-a.nist.gov sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: not enough valid responses received in time bert:~ # sntp -v -P no -r pool.ntp.org sntp options: a=2 v=1 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= pool.ntp.org sntp: correction 0.003 +/- 0.032+0.050 secs - ignored bert:~ # sntp -V -P no -r pool.ntp.org sntp options: a=2 v=2 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= pool.ntp.org sntp: offset=0.003+/-0.047 disp=0.032 sntp: correction 0.003 +/- 0.032+0.047 secs - ignored bert:~ # sntp -V -P no -r time-a.nist.gov sntp options: a=2 v=2 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= time-a.nist.gov sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: not enough valid responses received in time bert:~ # sntp -V -P no -r time-b.nist.gov sntp options: a=2 v=2 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= time-b.nist.gov sntp: offset=-0.000+/-0.054 disp=0.000 sntp: correction -0.000 +/- 0.000+0.054 secs - ignored ``` – Cheers Malcolm °¿° (Linux Counter #276890) openSUSE 12.1 (x86\_64) Kernel 3.1.10-1.9-desktop up 4:01, 4 users, load average: 0.01, 0.03, 0.05 CPU Intel i5 CPU M520@2.40GHz | Intel Arrandale GPU ---
**Author:** ![danskemk](https://avatars.discourse-cdn.com/v4/letter/d/35a633/32.png) [@danskemk](https://forums.suse.com/u/danskemk)\ **Post date:** [May 30, 2012, 1:50pm UTC](https://forums.suse.com/t/server-time-update-problem/22650/5 "2012-05-30T13:50:00Z")
Hi, the problem for me is that sntp try to use high ports and get timeouts. I was looking for alternative which uses only port 123. server2:~ # sntp -V -P no -r LANtimeserver sntp options: a=2 v=2 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= LANtimeserver sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: receive timed out after 3 seconds sntp: not enough valid responses received in time server2:~ # sntp -V -P no -r [pool.ntp.org](http://pool.ntp.org) sntp options: a=2 v=2 e=0.100 E=5.000 P=2147483647.000 d=15 c=5 x=0 op=1 l=/etc/sntp.pid f= [pool.ntp.org](http://pool.ntp.org) sntp: offset=0.003+/-0.009 disp=0.023 sntp: correction 0.003 +/- 0.023+0.009 secs - ignored I set up time sync with yast-\> Network Services → NTP configuration now it seems working.