I am new to cron. I have a cronjob that updates a dataset in a 3rd party application. The contents of this dataset come from a text file, which is updated irregularly. Currently my cronjob runs once every week, to update this dataset (irrespective of whether the file was updated or not).
My task is to run the cronjob, if the file was modified say in the last 7 days. I can find if the file was modified using:
I have the following cron:
0,3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57 * * * * /v/sysadmin/sysnet/file.pl
The .pl has been tried at 755 and 777
The script works if manually run by the web browser or unix command prompt, but I can't get the Cron to do it automatically
i went... (3 Replies)
Made changes to a file using vi editor and saved those changes
now realised that the changes are not required
How can I get the previous version of the file.i.e the one which was there on which I had made changes (3 Replies)
Hi all
Recently i had finished a perl script. When i run manually, the script work fine.
But when i wanted to put the script in cron, it didn't get the same output as it run manually. I felt that it only execute the script until certain line then it stop as i see most of the related files didn't... (6 Replies)
Hi,
I want to schedule a job to run every 15 mins through cron.
searched the forums and came up with this piece of code.i have given this in my crontab
0-59/15 * * * * sh /usr/ss/job
But its not being run. Have i made any mistake here.
Can any1 post the cron code for scheduling the... (5 Replies)
Hi!
I have a svn backup script that works perfectly if I execute it from the command line but if I set it as a cronjob to run at night, only part of the code works.
So, basically the scripts starts by deleting the folder yesterday and then moves the folder today to the folder yesterday. When... (4 Replies)
In my cronjob, I would like to schedule my script.sh to run every minutes. I crontab -e and have in line below but it didn't seems to run at all.
* * * * * script.sh
When I run it manually, I can run it. Is that anything wrong with the above line?
If I change it to something like below,... (4 Replies)
Hi,
I need to run a script file which uses a file and that file is modified as and when some alarms generated, it is not based on any fixed time period.. it may be modified even once in a minute for some time and once in 30 min or once in 20 min. Hence i need to watch for the timestamp change of... (3 Replies)
Hi,
I would like to ask some few questions about zenity. I write a script that would generate a report if any changes on the files. i want to used zenity to had a visual alarm report if theres some changes on the comparisons of the file.I used this line of zenity but it doesn't work in cronjob.... (5 Replies)
Hi Friends,
I have a requirement to run the cronjob for every 10 minutes from 2:00 AM to 6:00 AM. Does the below code works? If not, please advise.
* * * * * command to be executed
┬ ┬ ┬ ┬ ┬
│ │ │ │ │
│ │ │ │ │
│ │ │ │ └---------------------------------- day of week (0 - 6) (0 is... (5 Replies)
Discussion started by: srikanthbiradar
5 Replies
LEARN ABOUT CENTOS
cronjob_selinux
cronjob_selinux(8) SELinux Policy cronjob cronjob_selinux(8)NAME
cronjob_selinux - Security Enhanced Linux Policy for the cronjob processes
DESCRIPTION
Security-Enhanced Linux secures the cronjob processes via flexible mandatory access control.
The cronjob processes execute with the cronjob_t SELinux type. You can check if you have these processes running by executing the ps com-
mand with the -Z qualifier.
For example:
ps -eZ | grep cronjob_t
ENTRYPOINTS
The cronjob_t SELinux type can be entered via the user_cron_spool_t, shell_exec_t file types.
The default entrypoint paths for the cronjob_t domain are the following:
/var/spool/at(/.*)?, /var/spool/cron, /bin/d?ash, /bin/zsh.*, /bin/ksh.*, /usr/bin/d?ash, /usr/bin/zsh.*, /usr/bin/ksh.*, /bin/esh,
/bin/mksh, /bin/sash, /bin/tcsh, /bin/yash, /bin/bash, /bin/fish, /bin/bash2, /usr/bin/esh, /usr/bin/sash, /usr/bin/tcsh, /usr/bin/yash,
/usr/bin/fish, /usr/bin/mksh, /usr/bin/bash, /sbin/nologin, /usr/sbin/sesh, /usr/bin/bash2, /usr/sbin/smrsh, /usr/bin/scponly,
/usr/sbin/nologin, /usr/libexec/sesh, /usr/sbin/scponlyc, /usr/bin/git-shell, /usr/libexec/git-core/git-shell
PROCESS TYPES
SELinux defines process types (domains) for each process running on the system
You can see the context of a process using the -Z option to ps
Policy governs the access confined processes have to files. SELinux cronjob policy is very flexible allowing users to setup their cronjob
processes in as secure a method as possible.
The following process types are defined for cronjob:
cronjob_t
Note: semanage permissive -a cronjob_t can be used to make the process type cronjob_t permissive. SELinux does not deny access to permis-
sive process types, but the AVC (SELinux denials) messages are still generated.
BOOLEANS
SELinux policy is customizable based on least access required. cronjob policy is extremely flexible and has several booleans that allow
you to manipulate the policy and run cronjob with the tightest access possible.
If you want to deny any process from ptracing or debugging any other processes, you must turn on the deny_ptrace boolean. Enabled by
default.
setsebool -P deny_ptrace 1
If you want to allow all domains to use other domains file descriptors, you must turn on the domain_fd_use boolean. Enabled by default.
setsebool -P domain_fd_use 1
If you want to allow all domains to have the kernel load modules, you must turn on the domain_kernel_load_modules boolean. Disabled by
default.
setsebool -P domain_kernel_load_modules 1
If you want to allow all domains to execute in fips_mode, you must turn on the fips_mode boolean. Enabled by default.
setsebool -P fips_mode 1
If you want to enable reading of urandom for all domains, you must turn on the global_ssp boolean. Disabled by default.
setsebool -P global_ssp 1
If you want to allow system to run with NIS, you must turn on the nis_enabled boolean. Disabled by default.
setsebool -P nis_enabled 1
MANAGED FILES
The SELinux process type cronjob_t can manage files labeled with the following file types. The paths listed are the default paths for
these file types. Note the processes UID still need to have DAC permissions.
user_home_t
/home/[^/]*/.+
user_tmp_t
/var/run/user(/.*)?
/tmp/hsperfdata_root
/var/tmp/hsperfdata_root
/tmp/gconfd-.*
COMMANDS
semanage fcontext can also be used to manipulate default file context mappings.
semanage permissive can also be used to manipulate whether or not a process type is permissive.
semanage module can also be used to enable/disable/install/remove policy modules.
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux policy settings.
AUTHOR
This manual page was auto-generated using sepolicy manpage .
SEE ALSO selinux(8), cronjob(8), semanage(8), restorecon(8), chcon(1), sepolicy(8) , setsebool(8)cronjob 14-06-10 cronjob_selinux(8)