There is no ntpupdate command. You can update ntp by typing # ntpdate -u {Main node sync'ed to NTP server IP address or Domain name here} Example # ntpdate -u domains.ntp.com OR # ntpdate -u 192.168.0.2 You should only have 1 node announcing NTP and other nodes getting time from main node. ... View more

I use puppet and foreman to configure each system the same for all ntp clients to a central ntp server. Great information here http://www.linuxsecrets.com/blog/4tutorial-and-install-howto/2014/06/26/906-how-to-install-and-configure-linux-ntp-server-and-client ... View more

Hi anton_85   Try this article, it explains time zones and settings which is very well explained.   http://www.linuxsecrets.com/easyblog/2015/01/30/1374-fixing-date-and-setting-time-and-zone-on-rhel-6-from-command-line     ... View more

Hi eafonsof   Updating your kernel version will resolve the issue most likely.   I updated mine to kernel 3.18.x and resolved the issue. ... View more

I'll work on the documentation this weekend   Something you can understand without having to click another link,link, link to find information :-). ... View more

I can document the process for CentOS if you like. It's pretty much the same with RedHat as well.  Only difference is the repo and versions.   Let me know if you want it documented then I'll post it somewhere for you. ... View more

P.S. Don't forget to create or move your current .config from previous kernel or create new .config. # cd /usr/src/kernels/linux-3.18.8 # cp ../linux-old-kernel-version/.config . # make oldconfig -j32;make modules -j32;make modules_install -j32;make install # Answer all question using just the default. Just enter through the kernel questions. ... View more

Just change the versioning number from kernel or update to RedHat 6.6.  6.6 works perfectly.  Down grading isn't a good option in my opinion.   It's simply needs a version check which you can do by just upgrading the kernel version.   Easiest way instead of doing a complete reinstall or downgrade which isn't a good option.   Download kernel from kernel.org   # cd /usr/src/kernels   # wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.18.8.tar.gz   # tar zxvf linux-3.18.8.tar.gz   # cd linux-3.18.8   # make -j32;make modules -j32;make modules_install -j32;make install   # edit /boot/grub/grub.cfg   Change to 0 which is the current kernel version and that's it, reboot and you're set. ... View more