Solved

CentOS 5.6 Schedule Auto Reboots

Posted on 2012-03-14
8
1,237 Views
Last Modified: 2012-04-02
How can i schedule a monthly reboot of a CentOS 5.6 server?
0
Comment
Question by:deklinm
8 Comments
 
LVL 31

Accepted Solution

by:
farzanj earned 125 total points
Comment Utility
You could use cron as a root but it is not advisable.  It should be done manually.  But with cron you could do like, suppose on first of every month

* * 1 * * shutdown -r
0
 
LVL 76

Assisted Solution

by:arnold
arnold earned 125 total points
Comment Utility
Depending on the reason, it might be better to schedule the service restart than the complete system, service restarts quicker to get the system back.

You could use anacron /etc/my.monthly ...
0
 
LVL 13

Assisted Solution

by:Sandy
Sandy earned 125 total points
Comment Utility
Cron is always a good option !!!!

0 0 1 * * /sbin/reboot

This will help you out.
0
 
LVL 76

Expert Comment

by:arnold
Comment Utility
A reboot could terminate cron and by extension the reboot leading to an unknown state of the system.
IMHO, it is a bad practice to schedule restarts of the entire system. You never know whether something unexpected occurs that could lead to data loss.
0
What Security Threats Are You Missing?

Enhance your security with threat intelligence from the web. Get trending threat insights on hackers, exploits, and suspicious IP addresses delivered to your inbox with our free Cyber Daily.

 
LVL 39

Assisted Solution

by:noci
noci earned 125 total points
Comment Utility
@arnold, when you run reboot, it sends a state_6 to the init process.
The init starts tearing down the system and it doesn't matter if cron still runs or not.
(And the older reboot, just forces a reload of the system by jumping to the BIOS init code after entering realmode of the processor, so nothing is saved or can intervene)

Using anacron for his is not very wise, because anacron will also run programs that should have been run when the system was down [ catching up with pending work ]. It will reboot just after anacron starts if there was a pending reboot [ because it was turned of ].
0
 
LVL 76

Expert Comment

by:arnold
Comment Utility
I think a permanent reboot schedule is not a good idea.
There has to be an underlying reason for this. IMHO, the issue if any that is leading to the reboot consideration should be addressed, resolved.
0
 
LVL 39

Expert Comment

by:noci
Comment Utility
@arnold,
Ah but that wasn't the question..., and alas windows habits / necessities do creep out.
0
 
LVL 76

Expert Comment

by:arnold
Comment Utility
Noci, farzanj provided an answer ( though the hour, minute should be set) to the question, I am commenting on the ... Of the consideration. I.e you run yum update, kernel updates are made, the system reboots by schedule but does not come up because of one thing or another.
0

Featured Post

Do You Know the 4 Main Threat Actor Types?

Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

Join & Write a Comment

This is the error message I got (CODE) Error caused by incompatible libmp3lame 3.98-2 with ffmpeg I've googled this error message and found out sometimes it attaches this note "can be treated with downgrade libmp3lame to version 3.97 or 3.98" …
It’s 2016. Password authentication should be dead — or at least close to dying. But, unfortunately, it has not traversed Quagga stage yet. Using password authentication is like laundering hotel guest linens with a washboard — it’s Passé.
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Connecting to an Amazon Linux EC2 Instance from Windows Using PuTTY.

771 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

13 Experts available now in Live!

Get 1:1 Help Now