date time zone

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good_face
Posts: 25
Joined: 2019/10/15 13:29:09

date time zone

Post by good_face » 2020/02/05 08:27:01

I cannot change the time zone from eet to istanbul.

also timedatectl does not work. why can there be such a problem.


[root@best01 ~]# date
Wed Feb 5 10:32:55 EET 2020
[root@best01 ~]# cat /etc/re
readahead.conf redhat-release resolv.conf
redhat-access-insights/ request-key.conf
redhat-lsb/ request-key.d/
[root@best01 ~]# cat /etc/re
readahead.conf redhat-release resolv.conf
redhat-access-insights/ request-key.conf
redhat-lsb/ request-key.d/
[root@best01 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.7 (Santiago)
[root@best01 ~]# clear
[root@best01 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.7 (Santiago)
[root@best01 ~]# date
Wed Feb 5 10:46:46 EET 2020
[root@best01 ~]# time
time timeout times
[root@best01 ~]# time
time timeout times
[root@best01 ~]# clear
[root@best01 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.7 (Santiago)
[root@best01 ~]# date
Wed Feb 5 10:47:07 EET 2020
[root@best01 ~]# timedatectl
-bash: timedatectl: command not found
[root@best01 ~]# vi /etc/ntp.conf

[root@best01 ~]# date
Wed Feb 5 10:48:25 EET 2020
[root@best01 ~]# date
Wed Feb 5 10:48:31 EET 2020
[root@best01 ~]# ln -s /usr/share/zoneinfo/E
EET Egypt Eire EST EST5EDT Etc/ Europe/
[root@best01 ~]# ln -s /usr/share/zoneinfo/Europe/Is
Isle_of_Man Istanbul
[root@best01 ~]# ln -s /usr/share/zoneinfo/Europe/Istanbul /etc/localtime
ln: creating symbolic link `/etc/localtime': File exists
[root@best01 ~]# date
Wed Feb 5 10:49:48 EET 2020
[root@best01 ~]# time
time timeout times
[root@best01 ~]# timedatectl
-bash: timedatectl: command not found
[root@best01 ~]#

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TrevorH
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Re: date time zone

Post by TrevorH » 2020/02/05 13:34:23

This is a CentOS 6 system and that does not use systemd nor any of the systemd-related utilities like timedatectl (actually practically any *ctl utils will not exist).

You are also running a copy of CentOS 6 that is severely out of date. 6.7 is from 2015 so you are missing 5 years of security patches and enhancements. More relevant to the current problem is that you're missing 5 years worth of update to the tzdata* packages.

The current and only supported version of CentOS 6 is 6.10 which came out in mid-2018 and still receives security updates. Run yum update to get your system up to date.

On CentOS 6, you must adjust timezones manually. Do not symlink /etc/localtime to the file in /usr/share/zoneinfo that you want to use or the file will end up being corrupted. You must remove the symlink and cp the file from /usr/share/zoneinfo to /etc/localtime but before you do that, I recommend that you run rpm -Va tzdata\* to check if any of the zoneinfo files are already corrupt. If there is any output from the rpm -Va then you should yum reinstall tzdata\* to correct them (after making sure that /etc/localtime is not a symlink).

So, rm the symlink, cp the file, run rpm Va and reinstall if required. After the reinstall, recopy the file you want.
CentOS 6 will die in November 2020 - migrate sooner rather than later!
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 is dead, do not use it.
Full time Geek, part time moderator. Use the FAQ Luke

good_face
Posts: 25
Joined: 2019/10/15 13:29:09

Re: date time zone

Post by good_face » 2020/02/06 07:52:49

I mean, if I update the system, it wouldn't be necessary to do it. Which version should I upgrade to? 6.7 or 6.9 or etc..
thanks

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TrevorH
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Posts: 28074
Joined: 2009/09/24 10:40:56
Location: Brighton, UK

Re: date time zone

Post by TrevorH » 2020/02/06 13:24:13

You need to do both things. You will need to fix the tzdata setup using the info I gave you before and you need to yum update to the latest which is 6.10 (10 being > 9).
CentOS 6 will die in November 2020 - migrate sooner rather than later!
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
CentOS 5 is dead, do not use it.
Full time Geek, part time moderator. Use the FAQ Luke

good_face
Posts: 25
Joined: 2019/10/15 13:29:09

Re: date time zone

Post by good_face » 2020/02/18 19:31:28

Can I just install ntp services without installing tzdata or OS updating. I do not want to update or make any changes because a special application is running on the server . sorry so for asking weird questions !

also the server is not connected to the internet, is there a way how to install ntp service .
Also how i install tzdata for redhat 6.7 without internet connection.

aks
Posts: 2958
Joined: 2014/09/20 11:22:14

Re: date time zone

Post by aks » 2020/02/25 17:01:27

not connected to the internet, is there a way how to install ntp service
Why? You're not connect to a stable time server (seems pointless). I guess you could make your own time server, connected to the Internet time servers and then point your internal servers at that reference server or two, or three).
You can localinstall rpm files using yum (or rpm -Uvh <rpm_file> or rpm -ivh <rpm_file> - not really recommended).

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