Solved

sync date with NTPd

Posted on 2011-10-01
6
545 Views
Last Modified: 2013-12-16
hello,
I am on EST time using centos v5.7 and right now its 1.56pm I started the NTPd service

service ntpd start
chkconfig ntpd on

then I check and this is what I get

[(12:20 PM)][(root@critical)] [(~)] $ date
Sat Oct  1 12:56:03 EST 2011

how can I fix the date?
0
Comment
Question by:XK8ER
  • 3
  • 3
6 Comments
 
LVL 21

Expert Comment

by:Papertrip
ID: 36897342
The correct timezone currently is actually EDT, and that is why your server is showing 1 hour off.

Change/confirm your timezone by using tzselect
[root@broken etc]# tzselect
Please identify a location so that time zone rules can be set correctly.
<snip>
The following information has been given:

        United States
        Eastern Time

Therefore TZ='America/New_York' will be used.
Local time is now:      Sat Oct  1 14:13:48 EDT 2011.
Universal Time is now:  Sat Oct  1 18:13:48 UTC 2011.
Is the above information OK?

Open in new window

0
 
LVL 1

Author Comment

by:XK8ER
ID: 36897393
that doesnt change the time for the system, this is what I get.


You can make this change permanent for yourself by appending the line
        TZ='America/New_York'; export TZ
to the file '.profile' in your home directory; then log out and log in again.

Here is that TZ value again, this time on standard output so that you
can use the /usr/bin/tzselect command in shell scripts:
America/New_York
[(01:23 PM)][(root@alpha)] [(~)] $ date
Sat Oct  1 13:23:50 EST 2011

Open in new window

0
 
LVL 21

Accepted Solution

by:
Papertrip earned 500 total points
ID: 36897430
My apologies you are correct, I didn't fully complete the test when I ran it on my server.  All that shows you is which value you should be using but doesn't actually change it.  I had thought it would change /etc/localtime, so let's just do that manually.
[root@broken America]# pwd
/usr/share/zoneinfo/America
[root@broken America]# date
Sat Oct  1 11:54:32 PDT 2011
[root@broken America]# cp -p New_York /etc/localtime
cp: overwrite `/etc/localtime'? y
[root@broken America]# date
Sat Oct  1 14:54:20 EDT 2011

Open in new window

If that does the trick, then change /etc/sysconfig/clock to match
[root@broken America]# cat /etc/sysconfig/clock
ZONE="America/New_York"

Open in new window






0
Ransomware-A Revenue Bonanza for Service Providers

Ransomware – malware that gets on your customers’ computers, encrypts their data, and extorts a hefty ransom for the decryption keys – is a surging new threat.  The purpose of this eBook is to educate the reader about ransomware attacks.

 
LVL 1

Author Comment

by:XK8ER
ID: 36897436
ok, the time is now correct.. now when the time changes into daylight saving.. would it change automatically?
0
 
LVL 21

Expert Comment

by:Papertrip
ID: 36897447
Yes it will.

You may want to restart any applications that could have the old TZ cached.  I have never changed the timezone on a server apart from during the install, so I'm not sure of the repercussions of doing it on the live system.

If you are able to reboot the machine, that would be the safest, but is probably unnecessary... your call on that.
0
 
LVL 1

Author Comment

by:XK8ER
ID: 36897456
I think crond would be the only service that needs to restart so that it can rotate the logs right at 4am.. other than that when I change the date its all good.
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
bad ownership or modes for chroot directory 6 67
Virtualizing very old guest OS 4 80
Install Predefined Certificate on Ubunto 4 17
Hacked File Timestamps 4 49
rdate is a Linux command and the network time protocol for immediate date and time setup from another machine. The clocks are synchronized by entering rdate with the -s switch (command without switch just checks the time but does not set anything). …
I am a long time windows user and for me it is normal to have spaces in directory and file names. Changing to Linux I found myself frustrated when I moved my windows data over to my new Linux computer. The problem occurs when at the command line.…
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…

920 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now