今天我继续我的日志nano /var/log/syslog
我有这个，但我认为它不是很好：
Aug 27 06:25:02 ks3309528 rsyslogd: [origin software="rsyslogd" swVersion="4.6.4" x-pid="2235" x-info="http://www.rsyslog.com"] rsyslogd was HUPed, type 'lightweight'.
Aug 27 06:25:02 ks3309528 rsyslogd: [origin software="rsyslogd" swVersion="4.6.4" x-pid="2235" x-info="http://www.rsyslog.com"] rsyslogd was HUPed, type 'lightweight'.
Aug 27 06:25:02 ks3309528 /USR/SBIN/CRON[3862]: (CRON) error (grandchild #3867 failed with exit status 1)
Aug 27 06:25:02 ks3309528 /USR/SBIN/CRON[3862]: (CRON) info (No MTA installed, discarding output)
Aug 27 06:25:02 ks3309528 /USR/SBIN/CRON[3864]: (CRON) info (No MTA installed, discarding output)
Aug 27 06:26:01 ks3309528 /USR/SBIN/CRON[4102]: (root) CMD (/usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:26:01 ks3309528 /USR/SBIN/CRON[4103]: (root) CMD (root /usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:26:01 ks3309528 /USR/SBIN/CRON[4101]: (CRON) error (grandchild #4103 failed with exit status 127)
Aug 27 06:27:01 ks3309528 /USR/SBIN/CRON[4149]: (root) CMD (/usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:27:01 ks3309528 /USR/SBIN/CRON[4150]: (root) CMD (root /usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:27:01 ks3309528 /USR/SBIN/CRON[4147]: (CRON) error (grandchild #4150 failed with exit status 127)
Aug 27 06:28:01 ks3309528 /USR/SBIN/CRON[4195]: (root) CMD (/usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:28:01 ks3309528 /USR/SBIN/CRON[4196]: (root) CMD (root /usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:28:01 ks3309528 /USR/SBIN/CRON[4194]: (CRON) error (grandchild #4196 failed with exit status 127)
Aug 27 06:29:01 ks3309528 /USR/SBIN/CRON[4244]: (root) CMD (root /usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:29:01 ks3309528 /USR/SBIN/CRON[4245]: (root) CMD (/usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:29:01 ks3309528 /USR/SBIN/CRON[4242]: (CRON) error (grandchild #4244 failed with exit status 127)
Aug 27 06:30:01 ks3309528 /USR/SBIN/CRON[4292]: (root) CMD (/usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:30:01 ks3309528 /USR/SBIN/CRON[4291]: (root) CMD (root /usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:30:01 ks3309528 /USR/SBIN/CRON[4289]: (CRON) error (grandchild #4291 failed with exit status 127)
Aug 27 06:31:01 ks3309528 /USR/SBIN/CRON[4338]: (root) CMD (root /usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:31:01 ks3309528 /USR/SBIN/CRON[4339]: (root) CMD (/usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:31:01 ks3309528 /USR/SBIN/CRON[4336]: (CRON) error (grandchild #4338 failed with exit status 127)
Aug 27 06:32:01 ks3309528 /USR/SBIN/CRON[4384]: (root) CMD (/usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
Aug 27 06:32:01 ks3309528 /USR/SBIN/CRON[4385]: (root) CMD (root /usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null)
我想知道是否存在一个 cron 作业可以不在真空中运行......
我/var/log/auth.log也发帖：
Aug 27 06:25:02 ks3309528 CRON[3862]: pam_unix(cron:session): session closed for user root
Aug 27 06:25:02 ks3309528 CRON[3864]: pam_unix(cron:session): session closed for user root
Aug 27 06:26:01 ks3309528 CRON[4100]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 27 06:26:01 ks3309528 CRON[4101]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 27 06:26:01 ks3309528 CRON[4101]: pam_unix(cron:session): session closed for user root
Aug 27 06:26:01 ks3309528 CRON[4100]: pam_unix(cron:session): session closed for user root
Aug 27 06:27:01 ks3309528 CRON[4146]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 27 06:27:01 ks3309528 CRON[4147]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 27 06:27:01 ks3309528 CRON[4147]: pam_unix(cron:session): session closed for user root
Aug 27 06:27:02 ks3309528 CRON[4146]: pam_unix(cron:session): session closed for user root
Aug 27 06:28:01 ks3309528 CRON[4193]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 27 06:28:01 ks3309528 CRON[4194]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 27 06:28:01 ks3309528 CRON[4194]: pam_unix(cron:session): session closed for user root
Aug 27 06:28:01 ks3309528 CRON[4193]: pam_unix(cron:session): session closed for user root
Aug 27 06:29:01 ks3309528 CRON[4242]: pam_unix(cron:session): session opened for user root by (uid=0)
Aug 27 06:29:01 ks3309528 CRON[4241]: pam_unix(cron:session): session opened for user root by (uid=0)
谢谢你的帮助:)
编辑我的 crontab：
root@ks3309528:~# crontab -l
# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab'
# command to install the new version when you edit this file
# and files in /etc/cron.d. These files also have username fields,
# that none of the other crontabs do.
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
# m h dom mon dow user command
17 * * * * root cd / && run-parts --report /etc/cron.hourly
25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
47 6 * * 7 root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
52 6 1 * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
*/1 * * * * root /usr/local/rtm/bin/rtm 11 > /dev/null 2> /dev/null
root@ks3309528:~#
答案1
这些行是来自 Linux 守护进程“crond”的报告，它负责定期运行计划任务。
这个特定的程序/usr/local/rtm/bin/rtm 11每分钟都在运行。
问题是它从不同的配置运行两次，其中一次有故障。实际上，crond 将其解释为名为“root”的命令，而不是使用用户“root”来启动该命令。
在根的输出中或与模式匹配的crontab -l文件中搜索格式错误的行。/etc/cron.d/
这个作业没有理由被启动两次，所以只需删除失败的作业（包括root命令之前的作业）