When you logged on to Rocky Linux 8.5, you may see this message.
Activate the web console with: systemctl enable --now cockpit.socket
This system is not registered to Red Hat Insights. See https://cloud.redhat.com/
To register this system, run: insights-client --register
If you wish to disable the message, you may want to
rm -f /etc/motd.d/cockpitThe command will remove the symlink to file /run/cockpit/motd
Prerequisites Step 1: Endure you are in the correct time zone
# timedatectl
Local time: Wed 2022-04-20 10:04:44 +08
Universal time: Wed 2022-04-20 02:04:44 UTC
RTC time: Wed 2022-04-20 02:04:44
Time zone: Asia/Singapore (+08, +0800)
System clock synchronized: no
NTP service: active
RTC in local TZ: noPrerequisites Step 2: List Time Zone
# timedatectl list-timezones
.....
Asia/Singapore
.....Prerequisites Step 3: Set Time Zone
# timedatectl set-timezone Asia/SingaporeIn Rocky Linux 8.5, the ntp package is no longer supported and it is implemented by the chronyd (a daemon that runs in user-space) which is provided in the chrony package.
chrony works both as an NTP server and as an NTP client, which is used to synchronize the system clock with NTP servers.
To install the chrony suite, use the DNF Package Manager.
# dnf install chronyEnable the Service
# systemctl start chronyd
# systemctl status chronyd
# systemctl enable chronydCheck it is synchronised
[root@h00 etc]# timedatectl
Local time: Wed 2022-04-20 10:19:56 +08
Universal time: Wed 2022-04-20 02:19:56 UTC
RTC time: Wed 2022-04-20 02:19:56
Time zone: Asia/Singapore (+08, +0800)
System clock synchronized: yes
NTP service: active
RTC in local TZ: no
Setting up NTP Client Using Chrony in Rocky Linux 8.5
# vim /etc/chrony.conf.....
pool sg.pool.ntp.org iburst
.....# systemctl restart chronydShow the current time sources that chronyd is accessing
# chronyc sources
MS Name/IP address Stratum Poll Reach LastRx Last sample
===============================================================================
^? 178.128.223.142 0 6 0 - +0ns[ +0ns] +/- 0ns
.....
.....
.....References:
Rocky Linux is a production-ready downstream version of Red Hat Enterprise Linux started by original founder of CentOS, Gregory Kurtzer. the OS is almost identical under intensive development by the community.
For RHEL-8.5,
NAME="Red Hat Enterprise Linux"
VERSION="8.5 (Green Obsidian)"
ID="rhel"
ID_LIKE=”fedora"
VERSION_ID=”8.5"
PLATFORM_ID="platform:el8"
PRETTY_NAME="Red Hat Enterprise Linux 8.5 (Green Obsidian)"
ANSI_COLOR="0;31"
CPE_NAME=”cpe:/o:redhat:enterprise_linux:8.5:GA”
HOME_URL=”https://www.redhat.com/”
DOCUMENTATION_URL=”https://access.redhat.com/documentation/red_hat_enterprise_linux/8/”
BUG_REPORT_URL=”https://bugzilla.redhat.com/”
For Rocky-Linux-8.5,
NAME="Rocky Linux"
VERSION="8.5 (Green Obsidian)"
ID="rocky"
ID_LIKE="rhel centos fedora"
VERSION_ID="8.5"
PLATFORM_ID="platform:el8"
PRETTY_NAME="Rocky Linux 8.5 (Green Obsidian)"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:rocky:rocky:8.5:GA"
HOME_URL="https://rockylinux.org/"
BUG_REPORT_URL="https://bugs.rockylinux.org/"
ROCKY_SUPPORT_PRODUCT="Rocky Linux"
ROCKY_SUPPORT_PRODUCT_VERSION="8"
The Rocky Enterprise Software Foundation (RESF) is announcing the general availability of Rocky Linux, release 8.4, designed as a drop-in replacement for the soon-to-be discontinued CentOS. The GA release is launching six-and-a-half months after Red Hat deprecated its support for the widely popular, free CentOS server operating system.
HPC Wire 21-June-2021 ()
For more information, do take a look at CentOS Replacement Rocky Linux is now in GA and Under Independent Control
Do take a look at Rocky Linux site
The Linux Cluster 