Hi,

I am unable to configure what is wrong with my NTP server. I am using RHEL5.

# vi /etc/ntp.conf
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery

restrict 127.0.0.1
restrict -6 ::1

restrict 192.168.182.0 mask 255.255.255.0 nomodify notrap

server 0.rhel.pool.ntp.org
server 1.rhel.pool.ntp.org
server 2.rhel.pool.ntp.org

server 127.127.1.0 # local clock
fudge 127.127.1.0 stratum 10

driftfile /var/lib/ntp/drift

keys /etc/ntp/keys

========

# cat /etc/sysconfig/ntpd
# Drop root to id 'ntp:ntp' by default.
OPTIONS="-u ntp:ntp -p /var/run/ntpd.pid"

# Set to 'yes' to sync hw clock after successful ntpdate
SYNC_HWCLOCK=no

========

[root@station1 ~]# /etc/init.d/ntpd restart
Shutting down ntpd: [ OK ]
Starting ntpd: [ OK ]

# tail -f /var/log/messages

Apr 13 09:03:48 station1 ntpd[15334]: ntpd exiting on signal 15
Apr 13 09:03:48 station1 ntpd[15473]: ntpd 4.2.2p1@1.1570-o Wed Nov 29 15:19:23 UTC 2006 (1)
Apr 13 09:03:48 station1 ntpd[15474]: precision = 2.000 usec
Apr 13 09:03:49 station1 ntpd[15474]: Listening on interface wildcard, 0.0.0.0#123 Disabled
Apr 13 09:03:49 station1 ntpd[15474]: Listening on interface wildcard, ::#123 Disabled
Apr 13 09:03:49 station1 ntpd[15474]: Listening on interface lo, ::1#123 Enabled
Apr 13 09:03:49 station1 ntpd[15474]: Listening on interface eth0, fe80::20c:29ff:fe50:5d6#123 Enabled
Apr 13 09:03:49 station1 ntpd[15474]: Listening on interface lo, 127.0.0.1#123 Enabled
Apr 13 09:03:49 station1 ntpd[15474]: Listening on interface eth0, 192.168.182.10#123 Enabled
Apr 13 09:03:49 station1 ntpd[15474]: kernel time sync status 0040
Apr 13 09:03:49 station1 ntpd[15474]: frequency initialized -156.124 PPM from /var/lib/ntp/drift

########

[root@station1 ~]# telnet 192.168.182.10 123
Trying 192.168.182.10...
telnet: connect to address 192.168.182.10: Connection refused
telnet: Unable to connect to remote host: Connection refused

[root@station1 ~]# /etc/init.d/iptables stop
Flushing firewall rules: [ OK ]
Setting chains to policy ACCEPT: filter [ OK ]
Unloading iptables modules: [ OK ]

[root@station1 ~]# telnet 192.168.182.10 123
Trying 192.168.182.10...
telnet: connect to address 192.168.182.10: Connection refused
telnet: Unable to connect to remote host: Connection refused

#####

# pgrep ntpd
15474
# ll /var/run/ntpd.pid
-rw-r--r-- 1 root root 5 Apr 13 09:03 /var/run/ntpd.pid

#####

# ntpq -p
remote refid st t when poll reach delay offset jitter
================================================== ============================
193.41.86.177 9.200.78.141 3 u 56 64 5 110.158 1080306 19.590
mirror-01.mainl 192.36.143.152 2 u 53 64 7 48.015 1080306 26.405
ntp2.cines.fr 195.83.180.3 2 u 52 64 7 45.342 1080306 54.446
LOCAL(0) .LOCL. 10 l 53 64 7 0.000 0.000 0.002


but I am unable to connect to port 123 even the following output shows its listening

# netstat -an | grep 123
udp 0 0 192.168.182.10:123 0.0.0.0:*
udp 0 0 127.0.0.1:123 0.0.0.0:*
udp 0 0 0.0.0.0:123 0.0.0.0:*
udp 0 0 fe80::20c:29ff:fe50:5d6:123 :::*
udp 0 0 ::1:123 :::*
udp 0 0 :::123 :::*

Can any body help me to sort this out?

Many thanks.

NTP = UDP, telnet = TCP... ain't gonna happen!