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ntp - Network Time Protocol daemon and utility programs

NTP, the Network Time Protocol, is used to keep computer clocks accurate by synchronizing them over the Internet or a local network, or by following an accurate hardware receiver that interprets GPS, DCF-77, NIST or similar time signals.
This package contains the NTP daemon and utility programs. An NTP daemon needs to be running on each host that is to have its clock accuracy controlled by NTP. The same NTP daemon is also used to provide NTP service to other hosts.
For more information about the NTP protocol and NTP server configuration and operation, install the package "ntp-doc".
Original maintainer
Homepagehttp://www.ntp.org
4.2.8p14
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4.2.8p13
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4.2.8p11
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4.2.8p10
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4.2.8p4
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4.2.8.p14
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Arch iconArch rolling extra/oszst4.2.8.p14-12020-03-181.84 MiB4.44 MiB
CentOS iconCentOS 7.7.1908 osrpm4.2.6p5-29.el7.centos2020-01-07548 kiB1.37 MiBCentOS BuildSystem
Debian iconDebian 10.0 buster/maindeb1:4.2.8p12+dfsg-42019-06-17743 kiB1.97 MiB
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Fedora iconFedora 28 releases/Everything-osrpm4.2.8p11-2.fc282019-01-14698 kiB1.81 MiBFedora Project
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Manual pages

calc_tickadj(1)

calc_tickadj - Calculates optimal value for tick given ntp drift file.

ntp-keygen(1)

-Font]ntp-keygen - Create a NTP host key

ntp-wait(1)

-Font]ntp-wait - Wait for ntpd to stabilize the system clock

ntpd(1)

-Font]ntpd - NTP daemon program

ntpdc(1)

ntpdc - vendor-specific NTPD control program

ntpq(1)

ntpq - standard NTP query program

ntpstat(1)

ntpstat - Print NTP synchronisation status

ntpsweep(1)

ntpsweep - print various information about given NTP servers

ntptrace(1)

ntptrace - trace peers of an NTP server

sntp(1)

sntp - standard Simple Network Time Protocol client program

update-leap(1)

update-leap - leap-seconds file manager/updater

ntp.conf(5)

-Font]ntp.conf - Network Time Protocol (NTP) daemon configuration file format

ntp.keys(5)

ntp.keys - NTP symmetric key file format configuration file

ntp_acc(5)

ntp_acc - Access Control Options

ntp_auth(5)

ntp_auth - Authentication Options

ntp_clock(5)

ntp_clock - Reference Clock Options

ntp_decode(5)

ntp_decode - ntpd Event Messages and Status Words

ntp_misc(5)

ntp_misc - Miscellaneous Options

ntp_mon(5)

ntp_mon - Monitoring Options

ntp-keygen(8)

-Font]ntp-keygen - Create a NTP host key

ntp-wait(8)

-Font]ntp-wait - Wait for ntpd to stabilize the system clock

ntpd(8)

-Font]ntpd - NTP daemon program

ntpdc(8)

-Font]ntpdc - vendor-specific NTPD control program

ntpq(8)

-Font]ntpq - standard NTP query program

ntpstat(8)

ntpstat - show network time synchronisation status

ntptime(8)

ntptime - read and set kernel time variables

tickadj(8)

tickadj - set time-related kernel variables

Latest updates

OpenSUSE icon

OpenSUSE Leap 15.2 oss: Updated from 4.2.8p13-lp152.2.5 to 4.2.8p13-lp152.2.6

2020-03-23
  • Update ro 4.2.8p13
    • CVE-2019-8936, bsc#1128525: Crafted null dereference attack in authenticated mode 6 packet.
    • Fix several bugs in the BANCOMM reclock driver.
    • Fix ntp_loopfilter.c snprintf compilation warnings.
    • Fix spurious initgroups() error message.
    • Fix STA_NANO struct timex units.
    • Fix GPS week rollover in libparse.
    • Fix incorrect poll interval in packet.
    • Add a missing check for ENABLE_CMAC.
Arch icon

Arch rolling extra/os: Updated from 4.2.8.p13-3 to 4.2.8.p14-1

2020-03-18
Fedora icon

Fedora rawhide development/Everything-os: Updated from 4.2.8p13-5.fc32 to 4.2.8p14-1.fc33

2020-03-12
  • update to 4.2.8p14 (multiple security issues)
Arch icon

Arch rolling extra/os: Updated from 4.2.8.p13-2 to 4.2.8.p13-3

2020-02-09
Fedora icon

Fedora rawhide development/Everything-os: Updated from 4.2.8p13-4.fc32 to 4.2.8p13-5.fc32

2020-02-08
OpenSUSE icon

OpenSUSE Tumbleweed oss: Updated from 4.2.8p13-5.2 to 4.2.8p13-6.1

2020-02-04
  • Remove not used Pre/Post requires
Ubuntu icon

Ubuntu 16.04 LTS xenial-updates/main: Updated from 1:4.2.8p4+dfsg-3ubuntu5.9 to 1:4.2.8p4+dfsg-3ubuntu5.10

2020-01-07
  • SECURITY UPDATE: crash or possible code execution via a long string as the ipv4 host argument
    • debian/patches/CVE-2018-12327.patch prevent overflow of host in openhost() in ntpq/ntpq.c and ntpdc/ntpdc.c.
    • CVE-2018-12327
Ubuntu icon

Ubuntu 16.04 LTS xenial-security/main: Updated from 1:4.2.8p4+dfsg-3ubuntu5.9 to 1:4.2.8p4+dfsg-3ubuntu5.10

2020-01-07
  • SECURITY UPDATE: crash or possible code execution via a long string as the ipv4 host argument
    • debian/patches/CVE-2018-12327.patch prevent overflow of host in openhost() in ntpq/ntpq.c and ntpdc/ntpdc.c.
    • CVE-2018-12327
Fedora icon

Fedora 31 releases/Everything-os: Version 4.2.8p13-3.fc31 introduced

2020-01-07
OpenSUSE icon

OpenSUSE Leap 15.2 oss: Version 4.2.8p13-lp152.2.5 introduced

2020-01-07
  • Update ro 4.2.8p13
    • CVE-2019-8936, bsc#1128525: Crafted null dereference attack in authenticated mode 6 packet.
    • Fix several bugs in the BANCOMM reclock driver.
    • Fix ntp_loopfilter.c snprintf compilation warnings.
    • Fix spurious initgroups() error message.
    • Fix STA_NANO struct timex units.
    • Fix GPS week rollover in libparse.
    • Fix incorrect poll interval in packet.
    • Add a missing check for ENABLE_CMAC.
CentOS icon

CentOS 7.7.1908 os: Version 4.2.6p5-29.el7.centos introduced

2020-01-07
  • fix CVE-2016-7429 patch to restore default ttl configuration (#1550637)
  • fix buffer overflow in parsing of address in ntpq and ntpdc (CVE-2018-12327)
  • fix crash in parsing of received address in ntpq (#1616250)
  • avoid reading freed memory after disabling netlink socket (#1555401)
  • don't disable netlink socket on ENOBUFS error (#1555413)
  • replace ntpstat with shell script using ntpq and supporting chrony (#1592871)
Ubuntu icon

Ubuntu 20.04 focal/universe: Version 1:4.2.8p12+dfsg-3ubuntu3 introduced

2020-01-07
  • No-change rebuild for libevent soname changes.
Fedora icon

Fedora rawhide development/Everything-os: Updated from 4.2.8p13-3.fc31 to 4.2.8p13-4.fc32

2019-10-10
  • drop timedatex recommendation
Ubuntu icon

Ubuntu 19.10 eoan/universe: Version 1:4.2.8p12+dfsg-3ubuntu2 reintroduced

2019-10-10
Ubuntu icon

Ubuntu 19.10 eoan/universe: Version 1:4.2.8p12+dfsg-3ubuntu2 removed

2019-10-10
Ubuntu icon

Ubuntu 19.10 eoan/universe: Version 1:4.2.8p12+dfsg-3ubuntu2 reintroduced

2019-10-10
Ubuntu icon

Ubuntu 19.10 eoan/universe: Version 1:4.2.8p12+dfsg-3ubuntu2 removed

2019-10-10
Ubuntu icon

Ubuntu 16.04 LTS xenial-updates/main: Version 1:4.2.8p4+dfsg-3ubuntu5.9 reintroduced

2019-10-02
  • SECURITY UPDATE: code execution via buffer overflow in decodearr
    • debian/patches/CVE-2018-7183.patch: prevent writing beyons limits in ntpq/ntpq.c.
    • CVE-2018-7183
  • SECURITY UPDATE: DoS via certain packets with a zero-origin timestamp
    • debian/patches/CVE-2018-7185.patch: add additional checks to ntpd/ntp_proto.c.
    • CVE-2018-7185
Ubuntu icon

Ubuntu 16.04 LTS xenial-updates/main: Version 1:4.2.8p4+dfsg-3ubuntu5.9 removed

2019-10-02
Ubuntu icon

Ubuntu 19.10 eoan/universe: Version 1:4.2.8p12+dfsg-3ubuntu2 reintroduced

2019-09-25

Related packages

ntp-debuginfo - Debug information for package ntp
ntp-debugsource - Debug sources for package ntp
ntp-doc - Additional Package Documentation for ntp
ntp-perl - NTP utilities written in Perl
ntp-refclock - Drivers for hardware reference clocks
ntp-refclock-debuginfo - Debug information for package ntp-refclock
ntp-refclock-debugsource - Debug sources for package ntp-refclock
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