my clock is jacked up under slackware 12.1

ninja master · 05-29-2008, 01:12 AM

the clock has an option to "set date and time automatically" when ever i select this it says "unable to contact time server: pool.ntp.org" it says this on a screen that is running pings to the url. my router runs a "ntpclient" that i can cron to sync so often or just once if i like. i have tryed to find ntpclient for slackware but have failed. any help/ideas are appreciated but i would like to sync the "date" command and could really care less about the visual clock.

ludist · 05-29-2008, 02:36 AM

I don't know if is a better way (a deamon) you can execute:

Code:

ntpdate YourChoiceOfServer

SqdnGuns · 05-29-2008, 03:06 AM

Here is how I set it up:

Make sure /etc/rc.d/rc.ntpd is executable.

Code:

chmod +x /etc/rc.d/rc.ntpd

This is what my /etc/rc.d/rc/ntpd looks like.

Code:

#!/bin/sh
#
# start the Network Time Protocol
#
if [ ${1} = "start" ]
 then
  # set the clock from a public server
  echo "Setting clock from tock.usno.mil..."
  /usr/sbin/ntpdate -v 192.5.41.41
  sleep 2
  echo "Starting Network Time Protocol daemon..."
  /usr/sbin/ntpd -l /tmp/ntp.log
elif [ ${1} = "stop" ]
 then
  echo "Stopping Network Time Protocol daemon..."
  pid=`/bin/ps -e | /usr/bin/grep ntp |\
  /usr/bin/sed -e 's/^ *//' -e 's/ .*//'`
 if [ "${pid}" != '' ]
  then
  kill ${pid}
 fi
fi

Edit your /etc/ntp.conf and add this or your own choice.

Code:

server 192.5.41.41          # tock.usno.navy.mil
server ntp-01.caltech.edu   # Caltech border machine
server timekeeper.isi.edu   # ISI

Add this to your /etc/rc.d/rc.local

Code:

# Start the NTP daemon
#
if [ -x /etc/rc.d/rc.ntpd ]
 then
  /etc/rc.d/rc.ntpd start
fi

Start/Restart /etc/rc.d/rc.ntpd

You're all set now............not sure where I found this but it works flawlessly.

ninja master · 05-29-2008, 09:32 AM

im sorry, i fixed this issue 5 minutes after posting this but passed out before i could post whats up. openwrt has 2 ntp packages ntpd and ntpclient. where slackware has one, ntpd. i went to /etc/rc.d and issued rc.ntpd stop. this freed up the socket for ntp. i then ran ntpdate pool.ntp.org and it synced my clock as i had requested. i then restarted the rc.ntpd daemon

raconteur · 05-29-2008, 01:28 PM

Its a bit late, but this still may have value...

I call this in my rc.local and also call a silent version from cron daily. Some PC clocks drift horribly so I sync frequently on machines that need accuracy and don't have access to GPS time.

---
#!/bin/sh
# Sync the date with a time server

echo -n "Syncing the date and time to a time server..."

# kill ntpd to free the ntp port
/etc/rc.d/rc.ntpd stop >/dev/null 2>&1
sleep 1

# call ntpdate to sync the clock and update the drift files
ntpdate -u 0.us.pool.ntp.org >/dev/null 2>&1

# restart ntpd
/etc/rc.d/rc.ntpd start >/dev/null 2>&1

echo "done."
---

ninja master · 09-08-2008, 10:16 PM

i looked at my system again, as every time i format the ntpd gets screwed up. the command the daemon runs is "/usr/sbin/ntpdate -g"

i simply edit the command to run
"/usr/sbin/ntpdate -v pool.ntp.org"

and all is well =)

ninja master · 01-27-2009, 11:47 PM

from http://en.wikipedia.org/wiki/Ntpd

Code:

To manually force the time to synchronize, use:

 ntpd -q

so i am setting my ntp.conf to a localized ntp server, and i am going to add ntpd -q to my cron hourly to make it refresh hourly. i hope this fixes everything.