Monitoring

Hi All,

how does the Monitoring scripts actually work. I have setuped them like following:

Service: Webserver
Monitoring: Yes
Hostname: localhost
Port: 80
Type: TCP

Under Actions:

Offline: /etc/init.d/apache2 restart

... but if the apache webserver goes down it doesnt work - i have waited for about an hour and the apache webserver doesnt restart...
How often does this script check if the service is up? And where can i tweak the frequency?

Thanks

 

What's the output of

Code:

netstat -tap

? What's in /etc/hosts? What's the output of

Code:

crontab -l

?

 

netstat -tap without the established connections:

Code:

netstat -tap
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name   
tcp        0      0 localhost:imaps         *:*                     LISTEN     7272/dovecot        
tcp        0      0 localhost:mysql         *:*                     LISTEN     2689/mysqld         
tcp        0      0 *:941                   *:*                     LISTEN     2879/rpc.statd      
tcp        0      0 *:pop3                  *:*                     LISTEN     2733/popa3d         
tcp        0      0 *:imap2                 *:*                     LISTEN     7272/dovecot        
tcp        0      0 *:sunrpc                *:*                     LISTEN     2166/portmap        
tcp        0      0 *:www                   *:*                     LISTEN     3190/apache2        
tcp        0      0 *:81                    *:*                     LISTEN     2952/ispconfig_http 
tcp        0      0 *:auth                  *:*                     LISTEN     2633/inetd          
tcp        0      0 *:ftp                   *:*                     LISTEN     3345/proftpd: (acce 
tcp        0      0 localhost:domain        *:*                     LISTEN     3329/named          
tcp        0      0 *:ssh                   *:*                     LISTEN     2867/sshd           
tcp        0      0 localhost:953           *:*                     LISTEN     3329/named          
tcp        0      0 *:smtp                  *:*                     LISTEN     3294/master         
tcp        0      0 *:https                 *:*                     LISTEN     3190/apache2        

crontab -l:

Code:

crontab -l
30 00 * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/logs.php &> /dev/null
59 23 * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/ftp_logs.php &> /dev/null
59 23 * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/mail_logs.php &> /dev/null
59 23 * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/cleanup.php &> /dev/null
0 4 * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/webalizer.php &> /dev/null
0,30 * * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/check_services.php &> /dev/null
15 3,15 * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/quota_msg.php &> /dev/null
40 00 * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/traffic.php &> /dev/null
05 02 * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/backup.php &> /dev/null
*/5 * * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/mysql_quota.php &> /dev/null
0 10 * * * /root/ispconfig/php/php /root/ispconfig/scripts/shell/check_mx.php

 

...and in the hosts file localhost is only assigned to 127.0.0.1, but not to the external IP of the server...

 

The script is running every 30 minutes.

Apache is listening on all IP addresses, so that's ok.

That's ok, too.

Are there any error messages in Apache's error log when the Apache goes down?

 

Maybe I'm missing something, but the script check_services.php does not have any code to execute commands coming from ispconfig. It has also several functions commented.

 

Hi,

is there any progression of this subject?

Regards

 

monitoring not restarting apache

Sometimes Apache does not restart after logrotate on a Sunday morning. In the ISP Monitor / Actions / offline I have "/etc/init.d/apache2 start" but it does not seem to do anything. I get an email every few minutes to tell me the server is down, though. I just want it to start!

What should be in that box? Should it say "sh /etc/init.d/apache2 start" instead?

By the way, entering /etc/init.d/apache2 start in an ssh shell starts Apache no problem

 

The only thing I can see that seems likely is this:

[Sun Jan 13 01:12:13 2008] [notice] caught SIGTERM, shutting down

 

what is the exact command to put into the Action box?

/etc/init.d/apache2 start

does not work for me

 

Try

Code:

/etc/init.d/apache2 restart