NTP Problems After Patch Install

[Rob Smith]

Hi, I installed PHNE_23717 to correct the security hole in NTP. Since the installation I cannot get NTP to work. Whenever I try to start it I get these errors in syslog.

Jun 6 10:03:50 bioxweb xntpd[3921]: xntpd version=3.5f, PHNE_23717; Sat Apr 14
17:10:51 IST 2001
Jun 6 10:03:50 bioxweb xntpd[3921]: tickadj = 625, tick = 10000, tvu_maxslew =
61875
Jun 6 10:03:50 bioxweb xntpd[3921]: precision = 7 usec
Jun 6 10:03:50 bioxweb xntpd[3921]: bind() fd 10, family 2, port 123, addr 0a0e
07ff, in_classd=0 flags=0 fails: Address already in use

The output of netstat does not show anything using port 123. I am not sure what is going on here. This is a 10.20 system connecting to 2 stratum 1 servers. I don't think this is a connectivity problem as I can ping both servers and resolve them. Does anybody have any ideas? Many thanks in advance.

Rob

[eran maor · Accepted solution]

Hi Rob

dont thing that the problem is the patch .
1. first did you did the Special Installation Instructions of the patch PHNE_23717:
Slewing feature is available in the xntpd binary itself.
This feature can be enabled with xntpd -x option. Customers
are recommended to use xntpd -x for slewing instead of
using xntpd.slew binary.

PHNE_19710:
Be sure to look at /etc/ntp.conf.example for suggested
configurations and hints.

The slewing functionality is now provided with the
executable xntpd.slew. Customers who want to use or have
previously been using slewing functionality will need to
rename the xntpd.slew daemon to xntpd in order to activate
slewing.
2. This problem may be resolved by commenting out the following line in /etc/ntp.conf:

"broadcastclient no"
then restart 'xntpd'.

[Rob Smith]

Eran,
Thanks, would have made like a lot easier if I had read the special instructions. Lesson learned.

Rob