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找不到 cron 配置文件

tag-icon • tag-icon linux cron logs rsyslog
找不到 cron 配置文件

我有 CentOS 7 并且正在尝试访问一个配置文件，它看起来有点像这样：

# Cron configuration options

# For quick reference, the currently available log levels are:
#   0   no logging (errors are logged regardless)
#   1   log start of jobs
#   2   log end of jobs
#   4   log jobs with exit status != 0
#   8   log the process identifier of child process (in all logs)
#

我的目标是禁用 cron 日志记录。

我试过用谷歌搜索这个，显然有些人有类似的文件/etc/default/cron，/etc/rsyslog.d/50-Default.conf但当我搜索它们时，这些文件都不存在。我确实有/etc/rsyslog.conf并尝试使用cron.none.* /var/log/messages（我也没有/var/log/syslog）来禁用 cron 日志记录，但我仍然在远程服务器上获取 cron 日志。

如何停止 cron 日志（但不停止 cron 本身）？我所做的一切似乎都无法阻止他们。

答案1

CentOS/RHEL 7 使用亲信cron 的实施。您在那里显示的文件涉及维克西克罗恩，用于 Debian 等发行版。

[root@centos7 ~]# head -2 /usr/share/doc/cron*/README
17. January 2008        mmaslano (at) redhat (dot) com
Rename the fork on cronie. The source code could be found here:
[root@centos7 ~]#

root@debian:/# head -20 /usr/share/doc/cron*/README
#/* Copyright 1988,1990,1993 by Paul Vixie
# * All rights reserved
# *
# * Distribute freely, except: don't remove my name from the source or
# * documentation (don't take credit for my work), mark your changes (don't
# * get me blamed for your possible bugs), don't alter or remove this
# * notice.  May be sold if buildable source is provided to buyer.  No
# * warrantee of any kind, express or implied, is included with this
# * software; use at your own risk, responsibility for damages (if any) to
# * anyone resulting from the use of this software rests entirely with the
# * user.
# *
# * Send bug reports, bug fixes, enhancements, requests, flames, etc., and
# * I'll try to keep a version up to date.  I can be reached as follows:
# * Paul Vixie          <[email protected]>          uunet!decwrl!vixie!paul
# */

Vixie Cron V3.0
December 27, 1993
[V2.2 was some time in 1992]
root@debian:/#

默认情况下，亲信将/var/log/cron使用/etc/rsyslog.conf下面的条目发送所有 cron 消息

[root@centos7 ~]# grep ^cron /etc/rsyslog.conf
cron.*                                                  /var/log/cron
[root@centos7 ~]#

要更改它们的写入位置，请修改文件并重新启动 rsyslog。无需重新启动 cron。

[root@centos7 ~]# sed -i 's!/var/log/cron!/var/log/bob!' /etc/rsyslog.conf
[root@centos7 ~]# grep ^cron /etc/rsyslog.conf
cron.*                                                  /var/log/bob
[root@centos7 ~]# systemctl restart rsyslog
[root@centos7 ~]# tail /var/log/bob
Jul  7 19:16:41 centos7 crontab[8581]: (root) LIST (root)
Jul  7 19:17:01 centos7 CROND[8587]: (root) CMD (/bin/touch /tmp/foo)
[root@centos7 ~]#

并由 @doneal24 指出要完全丢弃条目，根据您原来的问题，您将使用/etc/rsyslog.conf如下所示的行

cron.* ~

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