Comments on: Installing and Configuring NTP on Linux http://www.ghacks.net/2009/03/16/installing-and-configuring-ntp-on-linux/ A technology news blog covering software, mobile phones, gadgets, security, the Internet and other relevant areas. Sun, 12 Feb 2012 00:09:21 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Bikash Gyawalihttp://www.ghacks.net/2009/03/16/installing-and-configuring-ntp-on-linux/comment-page-1/#comment-1407470 Bikash Gyawali Sun, 05 Feb 2012 15:44:20 +0000 http://www.ghacks.net/?p=11255#comment-1407470 After issuing the command /etc/init.d/ntp start does the ntp server keep running even after the restart? If not, how to make the service run at startup automatically? After issuing the command /etc/init.d/ntp start does the ntp server keep running even after the restart? If not, how to make the service run at startup automatically?

]]> By: Peterhttp://www.ghacks.net/2009/03/16/installing-and-configuring-ntp-on-linux/comment-page-1/#comment-1325511 Peter Fri, 01 Apr 2011 09:47:48 +0000 http://www.ghacks.net/?p=11255#comment-1325511 Hello, I am a newbie on linux. I am trying to fix this for 4 days but still unable to sync with the Internet time server. I am trying to do synchronize to the internet time server using my internal server (running on redhat) but it does not work at all. After configuring the ntp.conf, i stop the ntpd and start again and still did not work. i able to update the Internet time server using ntpdate commad. Please comment on my configuration and show me show direction. :( [root@app3 ~]# ntpq -p remote refid st t when poll reach delay offset jitter ============================================================================== LOCAL(0) .LOCL. 10 l 8 64 1 0.000 0.000 0.001 [root@app3 ~]# /etc/init.d/ntpd stop Shutting down ntpd: [ OK ] Configuration file: Running on: [root@app3 /]# /bin/bash --version GNU bash, version 3.2.25(1)-release (i686-redhat-linux-gnu) Copyright (C) 2005 Free Software Foundation, Inc. I am able to update using ntpdate: [root@app3 /]# ntpdate sg.pool.ntp.org 1 Apr 16:42:22 ntpdate[4812]: adjust time server 202.150.213.154 offset 0.036360 sec Configuration file on /etc/ntp.conf restrict default ignore restrict 127.0.0.1 #allow synchronization sources from the internet servers restrict server 3.sg.pool.ntp.org mask 255.255.255.255 nomodify notrap noquery restrict server 0.asia.pool.ntp.org mask 255.255.255.255 nomodify notrap noquery restrict server 2.asia.pool.ntp.org mask 255.255.255.255 nomodify notrap noquery #allow our internal server to synch to this server restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap noquery notrust server 127.127.1.0 #local system clock fudge 127.127.1.0 stratum 10 driftfile /etc/ntp/drift logfile /var/log/ntp.log Hello,

I am a newbie on linux. I am trying to fix this for 4 days but still unable to sync with the Internet time server.
I am trying to do synchronize to the internet time server using my internal server (running on redhat) but it does not work at all.
After configuring the ntp.conf, i stop the ntpd and start again and still did not work. i able to update the Internet time server using ntpdate commad.

Please comment on my configuration and show me show direction. :(

[root@app3 ~]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
LOCAL(0) .LOCL. 10 l 8 64 1 0.000 0.000 0.001

[root@app3 ~]# /etc/init.d/ntpd stop
Shutting down ntpd: [ OK ]

Configuration file:

Running on:
[root@app3 /]# /bin/bash –version
GNU bash, version 3.2.25(1)-release (i686-redhat-linux-gnu)
Copyright (C) 2005 Free Software Foundation, Inc.

I am able to update using ntpdate:
[root@app3 /]# ntpdate sg.pool.ntp.org
1 Apr 16:42:22 ntpdate[4812]: adjust time server 202.150.213.154 offset 0.036360 sec

Configuration file on /etc/ntp.conf

restrict default ignore
restrict 127.0.0.1

#allow synchronization sources from the internet servers
restrict server 3.sg.pool.ntp.org mask 255.255.255.255 nomodify notrap noquery
restrict server 0.asia.pool.ntp.org mask 255.255.255.255 nomodify notrap noquery
restrict server 2.asia.pool.ntp.org mask 255.255.255.255 nomodify notrap noquery

#allow our internal server to synch to this server
restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap noquery notrust

server 127.127.1.0 #local system clock
fudge 127.127.1.0 stratum 10
driftfile /etc/ntp/drift
logfile /var/log/ntp.log

]]> By: Setting your computer time in Ubuntuhttp://www.ghacks.net/2009/03/16/installing-and-configuring-ntp-on-linux/comment-page-1/#comment-1203148 Setting your computer time in Ubuntu Tue, 05 Oct 2010 13:59:02 +0000 http://www.ghacks.net/?p=11255#comment-1203148 [...] option. You can always set up NTP on your machine. I have already covered this in my article “Installing and configuring NTP on Linux“. That is, by far, the most reliable way to manage your clock. But when you don’t have [...] [...] option. You can always set up NTP on your machine. I have already covered this in my article “Installing and configuring NTP on Linux“. That is, by far, the most reliable way to manage your clock. But when you don’t have [...]

]]> By: Paul(us).http://www.ghacks.net/2009/03/16/installing-and-configuring-ntp-on-linux/comment-page-1/#comment-681831 Paul(us). Tue, 17 Mar 2009 11:37:40 +0000 http://www.ghacks.net/?p=11255#comment-681831 I realy liking this, christal clear, Jack explenation. I realy liking this, christal clear, Jack explenation.

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