This is a set of questions and answers to common problems and issues.

As we receive more emails about the software, we will add new questions to this page.


The developers can be reached via the chrony-dev mailing list. See question 1.4. for details.




1.1. Where can I get chrony source code?

Tarballs are available via the Download link on the Chrony
Web site.  For the current development from the developers' version control
system see the Git link on the Web site.

1.2. Are there any packaged versions of chrony?

We are aware of packages for Debian, Fedora, Gentoo, Mandriva, Slackware,
and Ubuntu.  We are not involved with how these are built or distributed.

1.3. Where is the home page?

It is currently at http://chrony.tuxfamily.org/. 

1.4. Is there a mailing list?

Yes, it's currently at chrony-users@chrony.tuxfamily.org. There is a low-volume
list called chrony-announce which is just for announcements of new releases or
similar matters of high importance.  You can join the lists by sending a
message with the subject subscribe to chrony-users-request@chrony.tuxfamily.org or
chrony-announce-request@chrony.tuxfamily.org respectively.

For those who want to contribute to the development of chrony, there is a
developers' mailing list.  You can subscribe by sending mail with the
subject subscribe to
chrony-dev-request@chrony.tuxfamily.org.

1.5. What licence is applied to chrony?

Starting from version 1.15, chrony is licensed under the GNU General Public
License, Version 2.  Versions prior to 1.15 were licensed under a custom BSD-like
license.


2.1. How does chrony compare to xntpd?

If your computer is permenently connected, or connected for long periods (that
is, for the several hours it takes xntpd to settle down), or you need to
support hardware reference clocks to your computer, then need t

Frequently asked questions








This is a set of questions and answers to common problems and issues.

As we receive more emails about the software, we will add new questions to this page.


The developers can be reached via the chrony-dev mailing list. See question 1.4. for details.




1.1. Where can I get chrony source code?

Tarballs are available via the Download link on the Chrony
Web site.  For the current development from the developers' version control
system see the Git link on the Web site.

1.2. Are there any packaged versions of chrony?

We are aware of packages for Debian, Fedora, Gentoo, Mandriva, Slackware,
and Ubuntu.  We are not involved with how these are built or distributed.

1.3. Where is the home page?

It is currently at http://chrony.tuxfamily.org/. 

1.4. Is there a mailing list?

Yes, it's currently at chrony-users@chrony.tuxfamily.org. There is a low-volume
list called chrony-announce which is just for announcements of new releases or
similar matters of high importance.  You can join the lists by sending a
message with the subject subscribe to chrony-users-request@chrony.tuxfamily.org or
chrony-announce-request@chrony.tuxfamily.org respectively.

For those who want to contribute to the development of chrony, there is a
developers' mailing list.  You can subscribe by sending mail with the
subject subscribe to
chrony-dev-request@chrony.tuxfamily.org.

1.5. What licence is applied to chrony?

Starting from version 1.15, chrony is licensed under the GNU General Public
License, Version 2.  Versions prior to 1.15 were licensed under a custom BSD-like
license.


2.1. How does chrony compare to xntpd?

If your computer is permenently connected, or connected for long periods (that
is, for the several hours it takes xntpd to settle down), or you need to
support hardware reference clocks to your computer, then need t

Frequently asked questions








This is a set of questions and answers to common problems and issues.

As we receive more emails about the software, we will add new questions to this page.


The developers can be reached via the chrony-dev mailing list. See question 1.4. for details.




1.1. Where can I get chrony source code?

Tarballs are available via the Download link on the Chrony
Web site.  For the current development from the developers' version control
system see the Git link on the Web site.

1.2. Are there any packaged versions of chrony?

We are aware of packages for Debian, Fedora, Gentoo, Mandriva, Slackware,
and Ubuntu.  We are not involved with how these are built or distributed.

1.3. Where is the home page?

It is currently at http://chrony.tuxfamily.org/. 

1.4. Is there a mailing list?

Yes, it's currently at chrony-users@chrony.tuxfamily.org. There is a low-volume
list called chrony-announce which is just for announcements of new releases or
similar matters of high importance.  You can join the lists by sending a
message with the subject subscribe to chrony-users-request@chrony.tuxfamily.org or
chrony-announce-request@chrony.tuxfamily.org respectively.

For those who want to contribute to the development of chrony, there is a
developers' mailing list.  You can subscribe by sending mail with the
subject subscribe to
chrony-dev-request@chrony.tuxfamily.org.

1.5. What licence is applied to chrony?

Starting from version 1.15, chrony is licensed under the GNU General Public
License, Version 2.  Versions prior to 1.15 were licensed under a custom BSD-like
license.


2.1. How does chrony compare to xntpd?

If your computer is permenently connected, or connected for long periods (that
is, for the several hours it takes xntpd to settle down), or you need to
support hardware reference clocks to your computer, then need t

Frequently asked questions








This is a set of questions and answers to common problems and issues.

As we receive more emails about the software, we will add new questions to this page.


The developers can be reached via the chrony-dev mailing list. See question 1.4. for details.



  • 1. Administrative issues
    • 1.1. Where can I get chrony source code?
    • 1.2. Are there any packaged versions of chrony?
    • 1.3. Where is the home page?
    • 1.4. Is there a mailing list?
    • 1.5. What licence is applied to chrony?
  • 2. Chrony compared to other programs
    • 2.1. How does chrony compare to xntpd?
  • 3. Compilation issues