Shulou(Shulou.com)06/02 Report--

AIX system minor error--Crontab fault

System environment:

Operating system: AIX 5.3.8

Oracle： Oracle 10gR2

Fault phenomenon:

Oracle users cannot enable crontab tools (other regular users also, root can)

[oracle@aix197:/var/adm/cron]$crontab -l

crontab: you are not authorized to use cron. Sorry.

Cause of failure:

Most of the files in/var/spool were deleted.

The cron directory under/var/adm was also deleted.

Solution:

Copy files from/var/spool and/var/adm/cron from other hosts to the corresponding directory on this machine

After copying, modify the corresponding file owner:

[root@aix197:/var/adm/cron]#cd /var/spool/cron/

[root@aix197:/var/spool/cron]#ls -l

total 16

drwxrwx--- 2 bin cron 512 Feb 20 15:38 atjobs

drwxrwx--- 2 bin cron 512 Jul 17 01:05 crontabs

[root@aix197:/var/spool/cron]#cd crontabs/

[root@aix197:/var/spool/cron/crontabs]#ls -l

total 32

-rw-r--r-- 1 adm cron 2020 Feb 20 15:38 adm

-rw-r--r-- 1 bin cron 0 Jul 17 01:05 oracle

-rw------- 1 root cron 2362 Jul 15 04:37 root

-rw-r--r-- 1 root cron 853 Feb 20 15:38 sys

-rw-r--r-- 1 root cron 1122 Feb 20 15:41 uucp

[root@aix197:/var/spool/cron/crontabs]#ls -l /var/adm

total 4976

drwxr-xr-x 2 root system 512 Jul 16 23:33 cron

drwxr-sr-x 2 sys sys 512 Jul 16 01:09 csd

-rw------- 1 root system 550 Jul 17 00:58 sulog

-rw-r--r-- 1 root system 2531736 Jul 17 00:59 wtmp

[root@aix197:/var/spool/cron/crontabs]#cd /var

[root@aix197:/var]#ls -ld adm

drwxrwxr-x 4 root system 512 Jul 16 23:33 adm

[root@aix197:/var]#chown bin:cron /var/adm/cron

Create cron.deny file:

[root@aix197:/var]#cd adm

[root@aix197:/var/adm]#ls

cron csd sulog wtmp

[root@aix197:/var/adm]#cd cron

[root@aix197:/var/adm/cron]#ls -l

total 72

prw------- 1 root cron 0 Jul 16 23:33 FIFO

-rw-r--r-- 1 root cron 33700 Jul 17 01:03 log

[root@aix197:/var/spool/cron/crontabs]#cat /var/adm/cron/cron.deny

cat: cannot open /var/adm/cron/cron.deny

[root@aix197:/var/adm/cron]#touch cron.deny

[root@aix197:/var/adm/cron]#chown bin:cron cron.deny

-- cron.deny content is empty!

[root@aix197:/var/adm/cron]#cat /etc/cron.allow

oracle

root

Note:

cron.deny Configure users denied access to crontab

cron.allow Configure users allowed to access crontab

Verification:

[oracle@aix197:/var/adm/cron]$crontab -l

[oracle@aix197:/var/adm/cron]$crontab -e

@ At this point, the problem is solved

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