Negativo yoander sino me equivoco está hablando de samba, por lo tanto
es válido, alejandro aqui te mando como hacerlo esto lo tome de la wiki
de samba4.
Configure NTP
You require a recent ntpd version (=>4.2.6) that supports signed ntp. E.
g. the version shipped with RHEL6 and Ubuntu < 11.04 are too old. The
Ntpd of Debian Squeeze supports signed ntp.
1a. Download ntpd from ntp.org (verify md5 sum) and compile it (add
additionals ./configure parameters, if needed):
$ tar -zxvf ntp-4.x.x.tar.gz
$ cd ntp-4.x.x
$ ./configure --enable-ntp-signd
$ make
$ make install
1b. Set the permission of the ntp_signd directory (default
/usr/local/samba/var/lib/ntp_signd/) to 0750 and its owner to root:ntp
to ensure that it is readable from ntpd.
2a. If you already have a supported ntpd version and ntp.conf, you have
to add/adjust only the following lines for minimal:
ntpsigndsocket /usr/local/samba/var/lib/ntp_signd/
restrict default mssntp
2b. If a minimal/simple ntp.conf is fine for you, then fill the file
with the following:
server 127.127.1.0
fudge 127.127.1.0 stratum 12
ntpsigndsocket /usr/local/samba/var/lib/ntp_signd/
restrict default mssntp
2c. A more complex ntp.conf is the following:
server 127.127.1.0
fudge 127.127.1.0 stratum 10
server 0.pool.ntp.org iburst prefer
server 1.pool.ntp.org iburst prefer
driftfile /var/lib/ntp/ntp.drift
logfile /var/log/ntp
ntpsigndsocket /usr/local/samba/var/lib/ntp_signd/
restrict default kod nomodify notrap nopeer mssntp
restrict 127.0.0.1
restrict 0.pool.ntp.org mask 255.255.255.255 nomodify notrap nopeer noquery
restrict 1.pool.ntp.org mask 255.255.255.255 nomodify notrap nopeer noquery
For explanation: This config allows clients to receive time from this
NTP host, localhost doesn't have any restrictions, and the servers we
receive the time from ,are not allowed to do anything else than
providing the time to us. For mor information about ntpd access
controll, see http://support.ntp.org/bin/view/Support/AccessRestrictions
3. On members of the domain you don't have to configure anything. Per
default they will receive the time from the DC that has the FSMO role PDC.
Permissions, SELinux Labeling and Policy
NTP
Set Permissions:
$ chgrp ntp /usr/local/samba/var/lib/ntp_signd
Multiple attempts to set the context for ntp failed so the below policy
was needed for windows clients time sync after joining the DOMAIN.
$ chcon -u system_u -t ntpd_t /usr/local/samba/var/run/ntp_signd
$ chcon -u system_u -t ntpd_t /usr/local/samba/var/run/
$ chcon -t ntpd_t /usr/local/samba/var/run/ntp_signd/socket
samba4.te policy:
module samba4 1.0;
require {
type ntpd_t;
type usr_t;
type initrc_t;
class sock_file write;
class unix_stream_socket connectto;
}
#============= ntpd_t ==============
allow ntpd_t usr_t:sock_file write;
#============= ntpd_t ==============
allow ntpd_t initrc_t:unix_stream_socket connectto;
Check and load policy:
$ checkmodule -M -m -o samba4.mod samba4.te
$ semodule_package -o samba4.pp -m samba4.mod
$ semodule -i samba4.pp
--
Este mensaje ha sido analizado por MailScanner
en busca de virus y otros contenidos peligrosos,
y se considera que está limpio.
------------ próxima parte ------------
Se ha borrado un adjunto en formato HTML...
URL:
<http://listas.jovenclub.cu/pipermail/gutl-l/attachments/20130509/ce165366/attachment.html>
______________________________________________________________________
Lista de correos del Grupo de Usuarios de Tecnologías Libres de Cuba.
Gutl-l@jovenclub.cu
https://listas.jovenclub.cu/cgi-bin/mailman/listinfo/gutl-l
