I'm having a bit of trouble with one cron job that doesn't seem to work.
I have others scripts that run hourly fine. However this one does not.
The script:
restart_monitoring.sh
Code:
#!/bin/bash
service iptables stop
service iptables start
/root/bandwidth_rules.sh
/root/portforward_config.sh
exit
The two scripts at the end just load a lot of iptables rules back in.
The cron job should run hourly (59th minute)
The cron job entry
Code:
59 * * * * /root/restart_monitoring.sh
I have restart crond to enable the new job, still doesn't run.
The job is to restart iptables, thus flushing all rules that I have running, then reloading them. I have figured out the problem to be with the "service iptables stop/start" command, it doesn't seem to like doing this...?
In the past i've read up on software capable of restarting services that go down. I was wondering what the best free option is right now. I've got three dedicated centos boxes that I need to monitor. I don't need to monitor them all from one place, but would like something that can identify processes such as httpd, mysql, and mydns, then restart them if necessary.
ive got a fairly beefy server but at the moment its hosting alot of resource intensive sites (unfortunatly i dont currently have a choice on where to run them all) and apache is crashing to the point its taking upto 2 mins to load pages within about 24hours but once restarted is fine again. so im wondering if anyone can suggest a way to automaticly restart apache via a cron job every 24hours or so?
My host is experiencing "issues" with my WordPress. It keeps going above their upper limit of open MySQL connections. So, while I am diagnosing it, I need to restart the server every few hours to avoid it going down.
How do I write a cron to restart Apache every 3 hours?
This one's pretty simple really, but given the fact that I'm constantly running into crond stops with CPanel servers (no clue why, or where, but it's happening), I'll post this here. If it helps someone, then great, if not, hey, no worries.
Firstly, login as root to your server through ssh, however you usually do .
Next, the script (we'll call it /bin/croncheck.sh). Use whatever editor you choose to create the file.
I'm needing some info i have been pulling my hair out for hours trying to get some cronjobs lined up i started out with knowing nothing about it and i'm a little better off now i got the cron running but the commands aren't executing so maybe someone can help me figure out why i would greatly appreciate it
Here's The deal I telnetted in set the following crontab ...
I have a dedicated CentOS 4.5 Server. However, as you can probably guess I am new to linux and managing a server...
Anyway, beginning of this month my crons quit working, I still receive emails as if they are ran but I can't get the scripts to actually execute.
I have not touched the crontabs or anything prior to them not working, they simply quit working... I did not notice immediatly they did not work, I am guessing that it was around the time of which I rebuilt apache to a new version of PHP. Today I tried changing them to "php path/to/script.php" and I also tried "path/to/php /path/to/script.php", neither worked.
Any ideas or suggestions as to how I can fix this?
I have a slight problem with a cron job I have setup.
I wanted to save a copy of iptables every hour to a folder, so I created a script... here it is:
Code: varDate=`date +%y%m%d` varTime=`date +%H%M`
filename="IPtablesBackup-$varDate-$varTime" iptables-save -c > /etc/IPtablesBackup/$filename and called is Backup-Script.sh
Now if I just execute the script will in root ./Backup-Script.sh I get a new file with the correct filename and iptables info is saved ! Great ! So then I thought, how can I setup this automatically every hour.
Which leads me on to my problem. I inputted "crontab -e" added this line
Code: 59 * * * * /etc/IPtablesBackup/Backup-Script.sh The problem is the script is run, I know because it creates a new file with the correct time and date, however the file is empty?
I have set Backup-Script.sh to 777 and owner and group are both root?
I did not realize the significance of the Apache sub-forum. I thought perhaps this would be a more general Server management query, but I realize now I should have posted in Apache forum.
I have been banging my head against the wall for the last couple of days trying to get cron jobs working. It's actually making me quite depressed, a lot of people are waiting on me to get this working, and for the life of me I see no light. I'm not a stupid person, i'm a PHP developer, and have some linux skills. This is the single most annoying issue I have had to deal with simply because I cannot find any troubleshooting methods to my issue.
I have tried every different combination of command under the sun and I cannot get any sign that the cron is running the commands.
I own a "virtual" dedicated server with a hosting company, I have full root access. Linux / Apache
The script file is a PHP file which simply mail() an email saying that cron is working, I am yet to receive this mail that was executed by cron.
I have ensured there are no errors in this simple PHP file, I have executed the script from the shell and all is well there..
So, firstly I tried to setup the cron table from CPanel, on the account where the script resides.
I used the following command combinations: Code: 0-59 * * * * /usr/local/bin/php /home/username/public_html/cron.php 0-59 * * * * php -q /home/username/public_html/cron.php 0-59 * * * * php /home/username/public_html/cron.php 0-59 * * * * cd "/home/username/public_html/"; php cron.php 0-59 * * * * wget [url] with time combinations of: * * * * * to get the command to be executed evey minute, for testing purposes.
All these commands work fine when executed through the shell.
I set the mail address for cron output to be my mail address also.
I do not get any mail from cpanel with an overview of the cron executions.
I then gave up trying to get cron to work on that account, and decided to go root.
I logged into the shell via root, checked the cron table for root. I edited the root cron table (that contains commands for various cpanel scripts etc) to include a command to execute the php script, even with the script residing on the root directory.
I also added MAILTO="myemail@email.com" to the first line of the cron table.
I do not get any emails of the cron actions.
How can I check if the cron scheduler is working when I get no sign that the cron commands are being executed, and when I do not receive any cron emails? What methods are there for me to troubleshoot this issue?
Could it be possible that cron shedular is not active on my server?
I have lurked the net with great detail to find any method to troubleshoot my issue, and all the related pages I find are to do with troubleshooting the commands. I know my commands are fine, there is some other issue here.
How do I make sure that there are cron jobs running on my cPanel server? I have root access, etc...just not sure why my crons aren't running. Nothing weird going on.
i have setup fresh Centos 6.5 with Plesk Pannel 12.0.18. When i execute the attached command from the console, i get it work, some posts are auto created within wordpress. When i enter the attached command within Plesk (Tools / Settings - Taskmanager - root New Task, the command is not executed...
I have a domain with a few forwarding email accounts that forward to mac.com email accounts... for some reason every once in a while these accounts stop working...
This is the error I get when I email to that account:
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: ...
I have directory shared by NFS on server1 this directory mounted at startup on server2. problem happened when twice servers restarted and server2 started before server1. directory not mounted I must mount it manually.
I get the following message via SSH when i try named restart
named: symbol lookup error: named: undefined symbol: dns_resolver_setudpsize
All my sites are currently down but the server is up and bind wont restart either in WHM or SSH
i am using WHM 10.6.0 cPanel 10.8.0-R8 CentOS 4.3 i686 - WHM X v3.1.0 Linux ***.server.com 2.6.9-11.EL #1 Wed Jun 8 16:59:52 CDT 2005 i686 i686 i386 GNU/Linux
I spoke to live support at nexpoint but they told me to email their dedicated server support but I havent had a reply in the last few hours.
I have 8 apache servers that is sharing one httpd.conf file... When changes made in the httpd.conf, you have you restart httpd... How can I restart all 8 servers at the same time instead of logging into each server and do it manually?
I was asked to restart lighthttpd at my friend host, he has 6 sites running, and of the site is down, host has asked him to restart the server, as he is away, he wanted me to restart, but I have no clue how to restart lighthttpd,
It will be really helpful if u can guide me for : if possible for the domain alone, else for the entire server
current options available : lxadmin - hypervm ssh connection
We are unable to restart apache on our server, as a result no sites are accessible in the browser. Our host states we need to clear out the following files:
