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慢性来源的地址未知

tag-icon • tag-icon fedora chrony
慢性来源的地址未知

我正在尝试设置 chrony，但它不起作用。我使用以下命令之一启动该服务：

 sudo systemctl stop chronyd; sudo systemctl start chronyd
 sudo systemctl restart chronyd

timedatectl 说我没有同步

 timedatectl
 Local time: Tue 2019-11-05 08:04:47 CET
 Universal time: Tue 2019-11-05 07:04:47 UTC
 RTC time: Tue 2019-11-05 07:04:47
 Time zone: Europe/Zurich (CET, +0100)
 System clock synchronized: no
 NTP service: active
 RTC in local TZ: no

不知何故，chrony 似乎无法解析我的源（我正在使用 Fedora 上提供的默认源）

chronyc activity             
200 OK
0 sources online
0 sources offline
0 sources doing burst (return to online)
0 sources doing burst (return to offline)
1 sources with unknown address

chronyc sources
210 Number of sources = 0

我的配置文件（/etc/chrony.conf）

# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
pool 2.fedora.pool.ntp.org iburst

# Record the rate at which the system clock gains/losses time.
driftfile /var/lib/chrony/drift

# Allow the system clock to be stepped in the first three updates
# if its offset is larger than 1 second.
makestep 1.0 3

# Enable kernel synchronization of the real-time clock (RTC).
rtcsync

# Enable hardware timestamping on all interfaces that support it.
#hwtimestamp *

# Increase the minimum number of selectable sources required to adjust
# the system clock.
#minsources 2

# Allow NTP client access from local network.
#allow 192.168.0.0/16

# Serve time even if not synchronized to a time source.
#local stratum 10

# Specify file containing keys for NTP authentication.
keyfile /etc/chrony.keys

# Get TAI-UTC offset and leap seconds from the system tz database.
leapsectz right/UTC

# Specify directory for log files.
logdir /var/log/chrony

# Select which information is logged.
#log measurements statistics tracking

最奇怪的是，如果我停止守护进程并手动运行 chronyd 那么它就会起作用。

sudo /usr/sbin/chronyd -d -d > chronyd.out

chronyc activity
200 OK
4 sources online
0 sources offline
0 sources doing burst (return to online)
0 sources doing burst (return to offline)
0 sources with unknown address

chronyc sources
210 Number of sources = 4
MS Name/IP address         Stratum Poll Reach LastRx Last sample               
===============================================================================
^+ ns1.nexellent.net             2   6    77    37  +2998us[+2998us] +/-   13ms
^* 162.159.200.1                 3   6    77    38  +1348us[+2529us] +/-   16ms
^- mirror.tillo.ch               2   6    72   177  -1754us[ +375us] +/-   24ms
^- ntp0.as34288.net              2   6    75    50   +729us[ +729us] +/-   11ms

欢迎任何解决此问题的帮助。

答案1

我怀疑你现在已经解决了这个问题 - 但如果其他人也遇到同样的问题：

SELinux 会阻止来自 chronyd 的解析器访问，只需禁用它即可让您测试这是否是原因或添加异常。

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