Wednesday, November 30, 2011

Synup time

How to sync up time with your gateway:
1. find your gateway
[root@scael101 ~]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
10.132.251.0    0.0.0.0         255.255.255.0   U     0      0        0 xenbr0
192.168.10.0    0.0.0.0         255.255.255.0   U     0      0        0 bond1
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 xenbr0
0.0.0.0         10.132.251.1    0.0.0.0         UG    0      0        0 xenbr0


2.sync up to the gateway
/usr/sbin/ntpdate 10.132.251.1

3. Sometimes you get the error:  "the NTP socket is in use, exiting".
You can kill the ntp daemon: ps -ef|grep ntp; kill -9 <pid>
sync with the gateway, and restart the ntp daemon:
/usr/sbin/ntpd -u ntp:ntp -p /var/run/ntpd.pid

4.   if you want your local timezone to be set then do the following as root,
for example,
cd /etc
ln -sf /usr/share/zoneinfo/America/Los_Angeles localtime

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