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I have read: http://thegeekdiary.com/centos-rhel-7-chrony-vs-ntp-differences-between-ntpd-and-chronyd/ My server is up all the time and will serve time to internal systems (via DHCP options). Caveat is that my server is an armv7 (Cubieboard2) which does not have an RTC (no battery). So whenever the system boots, the time is Z...

On 05/02/17 16:15, Richard wrote: > >> Date: Sunday, February 05, 2017 10:26:05 -0500 >> From: Robert Moskowitz <rgm at htt-consult.com> >> >> I have read: >> http://thegeekdiary.com/centos-rhel-7-chrony-vs-ntp-differences-bet >> ween-ntpd-and-chronyd/ >> >> My server is up all the time and will serve time to internal >> systems (via DHCP options). >> >> Caveat is that my server is an armv7 (Cubieboard2) which does not >> have an RT...

Robert, If your NTP server will be on 7/24, I would uninstall chrony and install ntpd which is still included in CentOS 7. Configure as usual. For the differences between chrony and ntpd reference: http://thegeekdiary.com/centos-rhel-7-chrony-vs-ntp-differences-between-ntpd-and-chronyd/ Essentially, chrony is more for laptops with intermittant network connections, and ntpd is better suited to always-on servers

> Date: Sunday, February 05, 2017 10:26:05 -0500 > From: Robert Moskowitz <rgm at htt-consult.com> > > I have read: > http://thegeekdiary.com/centos-rhel-7-chrony-vs-ntp-differences-bet > ween-ntpd-and-chronyd/ > > My server is up all the time and will serve time to internal > systems (via DHCP options). > > Caveat is that my server is an armv7 (Cubieboard2) which does not > have an RTC (no battery). So whenev...

On Tue, Aug 06, 2019 at 03:18:06PM -0600, Warren Young wrote: > On Aug 6, 2019, at 7:59 AM, Fred Smith <fredex at fcshome.stoneham.ma.us> wrote: > > > > On Tue, Aug 06, 2019 at 05:27:54AM -0600, Warren Young wrote: > >> On Aug 5, 2019, at 6:57 PM, Fred Smith <fredex at fcshome.stoneham.ma.us> wrote: > >>> > >>> no core file (yes, ulimit

Il 15/01/20 17:51, Jon Pruente ha scritto: > On Wed, Jan 15, 2020 at 10:18 AM Alessandro Baggi < > alessandro.baggi at gmail.com> wrote: > >> I made several test to see what happens and noticed that removing -S >> (--sparse) from rsync command problem does not occour. >> In another test, thinking about a problem on 0ed file, I tried file >> generation using

On 02/05/2017 11:58 AM, J Martin Rushton wrote: > On 05/02/17 16:15, Richard wrote: >>> Date: Sunday, February 05, 2017 10:26:05 -0500 >>> From: Robert Moskowitz <rgm at htt-consult.com> >>> >>> I have read: >>> http://thegeekdiary.com/centos-rhel-7-chrony-vs-ntp-differences-bet >>> ween-ntpd-and-chronyd/ >>> >>> My server is up all the time and will serve time to internal >>> systems (via DHCP options). >>> >>> Caveat is that my server is an armv7 (Cubieboard2) which does...

...n Aug 6, 2019, at 8:48 PM, Fred Smith <fredex at fcshome.stoneham.ma.us> wrote: > > Setting up as you described earlier, is there a way to allow only > a single program to drop core? Of course. The * in the limits.d file is a ?domain? value you can adjust to suit: https://www.thegeekdiary.com/understanding-etc-security-limits-conf-file-to-set-ulimit/ You?d have to read the systemd docs to figure out the defaults for LimitCore, but I suspect you don?t get cores until you set this on a per-service basis. You can also adjust the sysctl pattern path to put cores somewhere secure. Tha...

...why this > happens only with zeroed file? > > Ah, I misunderstood what you meant. I had thought you might have created a file with urandom first and then overwrote it with zeros. This is behaving as expected with sparse files. You can create a sparse file with dd by using seek: https://www.thegeekdiary.com/how-to-create-sparse-files-in-linux-using-dd-command/