I cannot seem to find it in the support documentation - my windows in NMIS show the right day and time, but the top right bar shows a day ahead (AEST) and I cannot seem to figure out where to change that,
mark documented the low-level/hardcore way of achieving this, but OS software updates may very well overwrite your changes and you should consider higher-level tools where possible:
if your server OS is Debian/Ubuntu, please use sudo dpkg-reconfigure tzdata.
sudo dpkg-reconfigure tzdata
If your server OS is CentOS/RedHat 6 or older there's no generic highlevel method.On CentOS/RedHat 7 you should use sudo timedatectl set-timezone <new_time_zone>.
sudo timedatectl set-timezone <new_time_zone>.
Input the following command in your terminal:
As you see, the NMIS VM uses the AEST (Eastern Australia) timezone by default. If your NMIS server(s) are all in one timezone you can use the local timezone. However, as a general practice Opmantek recommends using UTC, especially when using multiple polling servers across 1 or more timezones.
You can see a list of possible timezones in:
To change your server's timezone to UTC first remove the existing setting, then symlink the new setting to the localtime folder
rm -rf /etc/localtime
ln -s /usr/share/zoneinfo/UTC /etc/localtime
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