Software :: CentOS 5.3 VM With Ntpd, No Server Suitable For Synchronization Found?
Jan 8, 2010
I cant get ntpd to synchronize with the ntp servers. I have a CentOS 5.3 32 bit Virtual Machine. I'm in USA on Pacific Standard Time. Here's all configuration and other important information for troubleshooting. Is there anything wrong with my config? btw, I used wireshark to look at the UDP packets - I dont get any responses from any of the servers back. I only see requests going out from my server, but no response. Is this a firewall Issue? If it is, then do I need to just enable UDP port 123 on the firewall?
[Code]...
View 4 Replies
ADVERTISEMENT
Mar 29, 2011
I am having a situation with an NTPD server.
Code:
remote refid st t when poll reach delay offset jitter
plesk2.datacent .INIT. 16 u - 64 0 0.000 0.000 0.000
91.198.87.118.b .INIT. 16 u - 64 0 0.000 0.000 0.000
core.fr.zeroloo .INIT. 16 u - 64 0 0.000 0.000 0.000
178-26-105-100- .INIT. 16 u - 64 0 0.000 0.000 0.000
and it remains so no matter how long I wait...
Hoping to get better results with ntpdate, I stopped NTPS and tried :
Code:
# ntpdate ntp.skynet.be
29 Mar 09:12:26 ntpdate[4715]: no server suitable for synchronization found
# ntpdate -ud ntp.skynet.be
29 Mar 09:14:02 ntpdate[4814]: ntpdate 4.2.4p4@1.1520-o Sun Nov 22 16:14:35 UTC 2009 (1)
transmit(195.13.23.5)
receive(195.13.23.5) .....
I am running Debian Lenny 64b, and every packages are totally updated. I have 25 identical servers. And there is just one giving me this problem. From what I see, it is not a connection/FW issue since ntpdate get replies from the ntp server (ntp.skynet.be is my isp's stratum 2 ntp server).
View 14 Replies
View Related
May 18, 2010
i had tried several restrict options and disabling the slackware "no serve to anyone" default. i want the slackware system to host the ntp server for other devices to sync with so im not so hard on the remote ntp servers.
Code:
# Sample /etc/ntp.conf: Configuration file for ntpd.
#
[code]....
View 3 Replies
View Related
Nov 2, 2010
I can't update my ubuntu clock with my server. If i run the command ntpdate domain.local, it gives me this erro (no server suitable for synchronization found) if i run the command nslookup domain.local it works well and found my server
View 3 Replies
View Related
Jan 22, 2010
I have started ntpd service with chkconfig ntpd on .When i execute : ntpdate 0.pool.ntp.org , then i get error :
No suitable server for synchronization .
View 1 Replies
View Related
Jun 28, 2010
I'd like to get the 13.0 "synchronized to <time server>, stratum <stratum>" messages back on 13.1.
- On 13.0, running ntpd 4.2.4p8, reassuring messages appeared in /var/log/messages like "synchronized to 211.233.84.186, stratum 2".
- On 13.1, running ntpd 4.2.6p1, there are no messages in /var/log/messages to confirm that time is being synchronised.
rc.ntpd on both starts ntpd with the same options. /etc/ntp.conf is identical on both, a "get it working and then make it secure" version:
Code:
cat /etc/ntp.conf | grep -E -v '^$|^#' cat /etc/ntp.conf | grep -E -v '^$|^#'
server in.pool.ntp.org
server asia.pool.ntp.org
server 127.127.1.0
fudge 127.127.1.0 stratum 10
driftfile /etc/ntp/drift
According to Linux Home Networking, synchronization can be checked using ntpq -p. This shows synchronization is working. I would prefer to see that confirmation in /var/log/messages without having to run a command manually to check it. How to get the old messages back?
View 14 Replies
View Related
Mar 30, 2011
[root@espeed log]# /etc/init.d/ntpd start
Starting ntpd: ntpd: error while loading shared libraries: libm.so.6: cannot open shared object file: No such file or directory
[root@espeed log]# ldd /usr/sbin/ntpd
linux-gate.so.1 => (0x00786000)
libm.so.6 => /lib/libm.so.6 (0x0059d000)
[code]....
View 8 Replies
View Related
Apr 1, 2010
I am facing issue in ntp, it is getting killed frequently. see below error; # /etc/init.d/ntpd status ntpd dead but pid file exists After starting service it is works fine but again after sometimes it get in dead postition.
View 5 Replies
View Related
Mar 30, 2011
My initial installation is for 10.4 (desktop). I've configured the package manager with my proxy information under the network tab. Downloads are attempted but none are successful. example error:Failed to fetch [URL]
I can download the example above via the firefox browser on the same machine configured with the same proxy.
I've tried changing servers, other hacks, but no change in results. I suspect its a proxy issue, but I don't see how. I did provide the credentials in the http authentication window that my reverse proxy requires.when I try to change servers, I get this message: No suitable download server was found
View 2 Replies
View Related
Sep 1, 2010
ntpd startup fails during boot.Does startup just fine manually from command line once it's booted though. Any suggestions what I might adjust?
View 2 Replies
View Related
May 27, 2010
I'm running NetWare SLES 10 sp3 with OES2 sp2. I was working with the folks at Novell to resolve an iPrint Print Manager problem.
During the process they wanted to perform a packet capture using tcpdump. While logged in as the root user the error no suitable device was found, and I received no data at all. This server is running on a VMWare Center. On other SLES 10 sp3 systems (residing on that same VMWre Center), tcpdump captures packets just fine. I inherited all of these servers, so I wasn't here during the initial build, but I'd make the guess that they were configured similarly. On a Server that I built recently, tcpdump works fine. On two of my Servers it does not, and gives the mentioned error.
It's not that big a deal, otherwise the Servers are communicating and working just fine. But, I'd like to get it working just because it's supposed to work. Students are off for the summer, so I have time to play.
View 5 Replies
View Related
Nov 28, 2010
I was given a computer that has the Ubuntu operating system installed I was able to at least get online with it. I tried to upgrade it (don't know what version was installed on it) using the Update Manager. When the computer restarted I got two error messages:
Error no suitable mode found
Error unknown command "terminal"
The system then went on through the Ubuntu logo screen but then I got a black screen. I couldn't get the computer to do anything. How to at least restore the computer back to its previous state before trying to upgrade.
View 3 Replies
View Related
Dec 8, 2009
I just installed fedora12 with seLinux active and OpenOffice:
Code:
# rpm -qa | grep openoffice
openoffice.org3-base-3.1.1-9420.i586
[code]....
View 5 Replies
View Related
May 3, 2010
Just did an upgrade from 9.10 to 10.04 through the update manager and now I can't boot into the OS. I receive these two errors:
error: no suitable mode found.
error: unknown command 'terminal'.
After these two errors. Screen flashes with the red/white loading circles and Ubuntu logo. After that just goes into a black screen.
View 9 Replies
View Related
Dec 16, 2009
I have a Windows 2003 server that runs a Win32 time server which synchronizes with off site time sources. I have a CentOS 5.4 server which I just configured and installed NTP on. For some reason, I keep getting time discrepancies even after the server is (apparently) synching with my local NTP server on the Windows box.
Hwclock is set to UTC true/etc/localtime is properly symlinked to appropriate /usr/share/zoneinfo fileNTPD is setup as a service which loads on startupNTP.conf is configured to only retrieve from my local Windows 2003 time serverntpq -p seems to verify that the system is indeed synching up properlyThe problem is, whenever I run the 'date' command it is displaying my system time in (presumably) UTC. That is, even though my the CentOS box appears to be synching up to the local time, it's not translating it into my proper time zone. Consequently, the date is always at -6 hours from the actual local time. It was my understanding that the hwclock is fine to remain at UTC as ntpd should be synching with my local Windows 2003 time server periodically and updating it, and the system time should be getting translated to my localtime.
what I do, after rebooting the box the hwclock and system clock display the improper time.Maybe I just have a fundamental misunderstanding of how this is supposed to operate.Update: I'm not sure why, but after I commented out the other servers and added a fudge declaration for my internal server and rebooted, everything is working as it should and the time is correct.I'm still not really sure if it was adding the "fudge <hostname> stratum 2" declaration that corrected things, or commenting out the additional hosts, so I'll leave this open if anyone cares to comment or contribute.
View 9 Replies
View Related
Aug 29, 2010
i'm trying to use the ntpd -gq instead of ntpdate. The result is that clock not set. as below. However ntpdate is working ok and had set the clock correctly.this is the ntp.conf file:
[root@CentOS5 ~]# cat /etc/ntp.conf
logfile /var/log/ntp.log
driftfile /var/lib/ntp/drift
server 0.centos.pool.ntp.org
this is the output of command:
[root@CentOS5 ~]# ntpd -dqg
ntpd 4.2.2p1@1.1570-o Sat Dec 19 00:58:16 UTC 2009 (1)[code]....
Also attached is the trace file, from the trace file, everything seems ok, timestamps is sent and received:
View 1 Replies
View Related
Jan 7, 2011
I am trying to install wine in ubuntu 8.04. While installation getting the error 'No suitable package flex found'. I tried to find out flex package in adobe as well as other sites. unable to find out.
View 3 Replies
View Related
Jun 1, 2011
I'm having difficulties with ntpd on my CentOS 5.6 install.
It all starts well; the server connects and synchronizes with a couple of public ntp servers:
[root@toro ~]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
+ntp.networking4 193.67.79.202 2 u 1 64 377 35.652 47.102 12.349
*deepthought.doc 131.188.3.223 2 u 2 64 377 29.010 44.358 11.585
[Code]....
View 3 Replies
View Related
Jan 27, 2009
I have a server running VMWare Server on it with 4 virtual machines running. I am trying to use NTPD to keep the time correct on all of the virtual machines. On my physical server, I have installed ntpd and this is it's config file:
Quote:# ntpd.conf
tinker panic 0
restrict 127.0.0.1
restrict default kod nomodify notrap
server 0.vmware.pool.ntp.org
server 1.vmware.pool.ntp.org
server 2.vmware.pool.ntp.org
[Code]...
View 3 Replies
View Related
Nov 20, 2009
I'm having a problem with the time on one of my servers jumping forward into the future. We run serveral CentOS 5.4 servers running Xen, some up to date and some a little older. The one in question is running 2.6.18-164.el5xen, with xen-libs-3.0.3-94.el5_4.2 and xen-3.0.3-94.el5_4.2. On this server are several Xen virtual machines, also running CentOS 5.4 with kernel 2.6.18-164.el5xen. One in particular has problems with the clock keeping proper time.
We use NTP (ntpd) to sync time to a central server in the company. Our NTP set-up works fine, and we have problems on only a couple of servers out of many. The problem I see is that one one particular Xen virtual machine, the clock will suddenly jump forward into the future, usually by several minutes but once by more than an hour. This has obvious implications for software running on the machine. Software such as Oracle grid control agent will restart itself under the (incorrect) assumption that it has been hung for several minutes with no activity. Oracle database will cope gracefully, but applications that refer to the clock will be confused.
We detect these time jumps because we have Nagios checking the clock on each host against the centralised time server (Nagios's check_ntp plugin). Nagios will suddenly report a clock offset that is miles into the future. Following the time jump, ntpd on the host in question will re-sync the time. Ntpd keeps the time steady, ticking just a few milliseconds per second until real time catches up with the server. i.e. Nagios will report the time as being 10 minutes ahead, then a minute later the host will be 9 minutes ahead, and then a further minute later the host will be 8 minutes ahead of real time. The clock on the host stays running very slow until it eventually is correct.
[Code]...
View 6 Replies
View Related
Jan 21, 2011
I am running a centOS 5.5 server and can't synchronize with time servers via ntpd. My server sits behind a firewall with only port 80 open and I suspect this is the issue. Do I need to open other ports to connect to the time servers at [URL]?
View 4 Replies
View Related
Nov 29, 2009
By the way, is there a step by step guide to install XFS file system and other related components on CENTOS 5.3,
View 2 Replies
View Related
Mar 22, 2010
I am trying to synchronize the time of my VM server with ntpd. I have the following configuration. And in the /etc/ntp.conf, I have the following line:
restrict default ignore
restrict 127.0.0.1.
server time1.server
server time2.server
Whenever I have this line, the erver is not able to synchronize its time... So far as I understood, this line prevents other servers using this machine as a time server. And the second line says to allow localhost to use as time server. But why do I need to use its own time server when I have specified to use time1.server and time2.server ? ( firewall for tcp and udp ports 123 is open)
However, when I replace the first line of the configuration with the following line, it works. restrict default kod nomodify notrap noquery But with this, i am allowing other servers to use this server a ntp (which I wouldn't like to). Why this machine tries to use ntp server of its own (to snyc time) and why it is not working though i have the entry "restrict 127.0.0.1" ??
View 1 Replies
View Related
Feb 10, 2011
NTPD on Fedora 14.
View 2 Replies
View Related
Jan 21, 2010
I have Fedora 10. Some web pages need plugins installed eg. quicktime etc. The web browser shows a button"Install Missing Plugins" at the top. When I click this it always says "No suitable plugins were found".
How do I solve this problem?
View 5 Replies
View Related
Jun 6, 2010
What configuration options in /etc/ntp.conf do I have to set to allow other computers to receive time from a ntpd server? I've tried removing "nopeers" and "noquery" from the restrict lines, but I can't see anything on port 123.
View 2 Replies
View Related
Mar 15, 2010
How will configure ntpd server? I tried to do it but I am used to get synchronize failed error.
View 2 Replies
View Related
Sep 24, 2010
Time synchronization with ntp 3 mins delay from client and server
View 4 Replies
View Related
Oct 25, 2010
I'm looking for a write one, read many file synchronization, file system or similar technique. In fact I want a to imitate a zfs_send/zfs_receive similar behaviour on Linux. My requirements are pure local (or in terms of distributed file systems: rack-aware) file handling with remote synchronization. Some random features/requirements I want to achieve are (I use the terms file and "file system" here interchangeable, as I don't care wheter I have to synchronize file based or use full file system supporting that):
Access on files from a specific host is pure local, i.e. the node has a full copy of a file, no parts are distributed. Read and write access is local, the remote side gets synchronized with write changes only Write changes on the remote side are non-blocking and asynchronous No need for concurrent file access, concurrent, distributed locking and so on Every file is changed by a single node only, other nodes have read access The file "owner", thus the node allowed to write files must be changeable Similar techniques (some as technology concept, not usable for me) exist, among those DRBD, MySQL Replication or even pure rsync.
I don't care whether I'm referring to a pure local solution (i.e. between two block devices) or a client/server mode. DRBD won't fit because its a peer to peer solution, I need to synchronize a lot of clients with a central storage through that way where DRBD just mirrors from peer to peer among two nodes and doesn't allow another node to take over the role of the primary node (i.e. node A is master, storage B secondary, I want to change to a thrid node C which becomes master and receives hence a full update from storage B.
Just as a guess, I'd make a local LVM volume on every node where write access happens. In the same time there exists a iSCSI target with multipath to a remote hosts which is shared with every node, again providing a clustered LVM. So I'd need to synchronize a local LVM volume with a remote LVM image. The question is just by which technique I could achieve that (i.e. as RAID 0, where every read and write goes to one node only and doesn't wait the other node to succeed). I could achieve this with rsync by a cyclic push to the remote host, but the problem is, that rsync isn't block based thus I'd need to synchronize every time the whole file, not only changes.
View 2 Replies
View Related
Oct 13, 2009
so I was trying to do sheduled updates on server, which is doing xen virtualization
doing kernel update (to 2.6.18-164.el5xen) i got the following error:
Running Transaction
Installing : kernel-xen [1/1]
grubby fatal error: unable to find a suitable template
and of course new kernel doesn't appears in grub.conf and don't know what is cause of this problem last kernel i was updateting in August and as i remember everything went just fine:
current kernel:
2.6.18-128.4.1.el5xen #1 SMP Tue Aug 4 21:33:24 EDT 2009 i686 i686 i386 GNU/Linux
#cat /boot/grub/grub.conf
# grub.conf generated by anaconda
[code]....
also could it be because running kernel is removed?also could it be because of LABEL entry, not /dev/... ( as i found out it was such bug, some years time ago)
View 1 Replies
View Related
