[Samba] Follow up info Re: SOLVED Re: ntpq -p ***Request timed out

Bob of Donelson Trophy bob at donelsontrophy.net
Sun Mar 1 07:58:08 MST 2015


 

I have discovered specifically why this happens. 

Some parts of scripts have been shared and used back and forth. This
issue is within the scripts. 

The "ntp" portion is creating a 'interface ignore ipv6' entry in the
/etc/ntp.conf file. 

I think the issue is in this part of the code: 

## restrict ntpd to interfaces
for i in ${NTPD_RESTRICT_INTERFACE} ; do
 echo " " >> /etc/ntp.conf
 echo "interface listen ${i}" >> /etc/ntp.conf
 done
for i2 in ${NTPD_RESTRICT_INTERFACE_IGNORE} ; do
 echo "interface ignore ${i2}" >> /etc/ntp.conf
 done 

The "i2" portion of the code seems to create both a 'wildcard' and
'ipv6' entry. Commenting out the 'ipv6' entry, restart 'ntp' and 'ntpq
-p' then works properly. (I might be wrong.) 

Simply put, it is timing out because I do not have a "ipv6" setup on my
machines. 

Just thought I should let someone know. 

---

-------------------------

Bob Wooden of Donelson Trophy

615.885.2846 (main)
www.donelsontrophy.com [1]

"Everyone deserves an award!!"

On 2015-02-13 13:48, Bob of Donelson Trophy wrote: 

> Thank you, Rowland. 
> 
> Copied your simpler ntp.conf file into my member server. Made the
> appropriate changes. Restarted all the ntp service on all machines (just
> in case.) Ran 'ntpq -p' (on member server) and got the correct answer.
> Proper connection to DC's. 
> ---
> 
> -------------------------
> 
> Bob Wooden of Donelson Trophy
> 
> 615.885.2846 (main)
> www.donelsontrophy.com [1] [1 [1]]
> 
> "Everyone deserves an award!!"
> 
> On 2015-02-13 11:50, Rowland Penny wrote:
> 
>> On 13/02/15 17:26, Bob of Donelson Trophy wrote: Copied Roweland's DC ntp.conf file into my two DC's. Restarted (all) ntp. Member still timing out! (I am starting to think that there is 'something' about the sernet packages that "they" do differently.) Rowland, Could I ask you to copy the ntp.conf from your client (appears to be your laptop) so I could review it's contents? --- ------------------------- Bob Wooden of Donelson Trophy 615.885.2846 (main) www.donelsontrophy.com [1] [1 [1]] [1 [1]] "Everyone deserves an award!!" On 2015-02-13 10:55, Rowland Penny wrote: On 13/02/15 16:43, Bob of Donelson Trophy wrote: Made the suggested adjustments (4 locations in the member server ntp.conf file) and restarted ntp. Still (member server) timing out. Not sure what you mean about removing "server 0.debian.pool.ntp.org iburst" lines. Those on the DC's. Aren't they necessary? Running 'ntpq -p' on DC's results in correct response. --- ------------------------- Bob Wooden of Donelson
  Trophy
615.885.2846 (main) www.donelsontrophy.com [1] [1 [1]] [1
> 
> [1]] [3
> [1]] "Everyone deserves an award!!" On 2015-02-13 10:06, L.P.H. van Belle wrote: bob. server dc02.dts***m.lan. iburst prefer server dc01.dts***m.lan. iburst prefer remove the . after lan and try like this server dc02.dts***m.lan server dc01.dts***m.lan and optional, i advice, remove all lines : server 0.debian.pool.ntp.org iburst Louis ' -----Oorspronkelijk bericht----- Van: bob at donelsontrophy.net [mailto:samba-bounces at lists.samba.org] Namens Bob of Donelson Trophy Verzonden: vrijdag 13 februari 2015 16:56 Aan: SAMBA MailList Onderwerp: [Samba] ntpq -p ***Re
> 
> q
> uest timed out I have two DC's running Version 4.1.16-SerNet-Debian-9.wheezy and a member server running Version 4.1.11-Debian. When I 'ntpq -p' from the member server I get: localhost: timed out, nothing received ***Request timed out Member server ntp.conf file: cat /etc/ntp.conf # Local clock (this is not the localhost address!) server 127.127.1.0 fudge 127.127.1.0 stratum 10 # The source, where we are receiving the time from (PDC) server dc02.dts***m.lan. iburst prefer server dc01.dts***m.lan. iburst prefer driftfile /var/lib/ntp/ntp.drift logfile /var/log/ntp # Access control # Default restriction restrict default ignore # Allow everything from localhost restrict 127.0.0.1 # Allow that our time source can only provide time and do nothing else rest r ict dc02.dts***m.lan. mask 255.255.255.255 nomodify notrap nopeer noquery restrict dc01.dts***m.lan. mask 255.255.255.255 nomodify notrap nopeer noquery The ntp.conf from one of the DC's: cat /etc/ntp.conf # /etc/ntp.conf,
configuration for ntpd; see ntp.conf(5) for help driftfile /var/lib/ntp/ntp.drift # Enable this if you want statistics to be logged. #statsdir /var/log/ntpstats/ statistics loopstats peerstats clockstats filegen loopstats file loopstats type day enable filegen peerstats file peerstats type day enable filegen clockstats file clockstats type day enable # You do need to talk to an NTP server or two (or three). #server ntp.your-provider.example # pool.ntp.org maps to about 1000 low-stratum NTP servers. Your server will # pick a different set every time it starts up. Please consider joining the # pool: <http://www.pool.ntp.org/join.html [2] [2 [2]] [2 [2]] [1 [2]]> server 0.debian.pool.ntp.org iburst server 1.debian.pool.ntp.org iburst server 2.debian.pool.ntp.org ib

 urst ser

v

> er 3.debian.pool.ntp.org iburst # Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for # details. The web page <http://support.ntp.org/bin/view/Support/AccessRestrictions [3] [3 [3]] [3 [3]] [2 [3]]> # might also be helpful. # # Note that "restrict" applies to both servers and clients, so a configuration # that might be intended to block requests from certain clients could also end # up blocking replies from your own upstream servers. # By default, exchange time with everybody, but don't allow configuration. restrict -4 default kod notrap nomodify nopeer noquery restrict -6 default kod notrap nomodify nopeer noquery # Local users may interrogate the ntp server more closely. restrict 127.0.0.1 restrict ::1 # Clients from this (example!) subnet have unlimited access, but only if # cryptographically authenticated. restrict 192.168.1*6.0 mask 255.255.255.0 notrust # If you want to provide time to your local subnet, change the next line. # (Again, the ad
 dress is

 an
example

 o

> nly.) br oadcast 192.168.1*6.255 # If you want to listen to time broadcasts on your local subnet, de-comment the # next lines. Please do this only if you trust everybody on the network! disable auth broadcastclient Went to ntp.org to see if I could troubleshoot. Did as they suggested and got same result. Their troubleshooting page indicated that most issues are connected to DNS issues between machines. Did some 'nslookup' from each DC to the member and vise versa. DNS returns correct results. Looked to confirm I do NOT have a firewall running on any device. Not at this time. Member server time keeps drifting and I need to correct this. Any ideas? -- ------------------------- Bob Wooden of Donelson Trophy 615.885.2846 (main) www.donelsontrophy.com [1] [1 [1]] [1 [1]] [3 [1]] [1 [3]] "Everyone deserves an award!!" Links: ------ [1] http://www.donelsontrophy.com [1] [1 [1]] [1 [1]] [3 [1]] -- To unsubscribe from this list go to the following URL and read the instructions:

https://lists.samba.org/mailman/options/samba [4] [4 [4]]

 [

> 4] [4 [4]] Links: ------ [1] http://www.pool.ntp.org/join.html [2] [2 [2]] [2 [2]] [2] http://support.ntp.org/bin/view/Support/AccessRestrictions [3] [3 [3]] [3 [3]] [3] http://www.donelsontrophy.com [1] [1 [1]] [1 [1]] [4] https://lists.samba.org/mailman/options/samba [4] [4 [4]] [4 [4]] You do not seem to have this line in your ntp.conf: ntpsigndsocket /var/lib/samba/ntp_signd/ and what is the '*' doing in these lines ? restrict 192.168.1*6.0 mask 255.255.255.0 notrust broadcast 192.168.1*6.255 This is my ntp.conf from a DC: server 127.127.1.0 fudge 127.127.1.0 stratum 10 server 0.pool.ntp.org iburst prefer driftfile /var/lib/ntp/ntp.drift logfile /var/log/ntp ntpsigndsocket /var/lib/samba/ntp_signd/ restrict default kod nomodify notrap nopeer mssntp restrict 127.0.0.1 restrict ::1 restrict 0.pool.ntp.org mask 255.255.255.255 nomodify notrap nopeer noquery and with this, I get this from a linux client: rowland at ThinkPad ~/test $ ntpq -p remote refid st t when poll reach de
 lay
offset jitter

==============================================================================
*dc01.example.com 79.132.231.104 3 u 94 128 377 0.960 -1.772 2.521
+dc02.example.com 108.61.56.35 3 u 101 128 377 0.942 2.210 2.457 Rowland
Links: ------ [1] http://www.donelsontrophy.com [1] [1 [1]] [2]
http://www.pool.ntp.org/join.html [2] [2 [2]] [3]
http://support.ntp.org/bin/view/Support/AccessRestrictions [3] [3 [3]]
[4] https://lists.samba.org/mailman/options/samba [4] [4 [4]]

OK, only changed the domain name

driftfile /var/lib/ntp/ntp.drift
statistics loopstats peerstats clockstats
filegen loopstats file loopstats type day enable
filegen peerstats file peerstats type day enable
filegen clockstats file clockstats type day enable
server dc01.example.com.
server dc02.example.com.
# By default, exchange time with everybody, but don't allow
configuration.
restrict -4 default kod notrap nomodify nopeer noquery
restrict -6 default kod notrap nomodify nopeer noquery

# Local users may interrogate the ntp server more closely.
restrict 127.0.0.1
restrict ::1

Rowland

Links:
------
[1] http://www.donelsontrophy.com [1]
[2] http://www.pool.ntp.org/join.html [2]
[3] http://support.ntp.org/bin/view/Support/AccessRestrictions [3]
[4] https://lists.samba.org/mailman/options/samba [4]
 

Links:
------
[1] http://www.donelsontrophy.com
[2] http://www.pool.ntp.org/join.html
[3] http://support.ntp.org/bin/view/Support/AccessRestrictions
[4] https://lists.samba.org/mailman/options/samba


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