Monitoring

Discussion in 'General' started by dimitar, Jul 30, 2007.

  1. dimitar

    dimitar New Member

    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
     
  2. falko

    falko Super Moderator ISPConfig Developer

    What's the output of
    Code:
    netstat -tap
    ? What's in /etc/hosts? What's the output of
    Code:
    crontab -l
    ?
     
  3. dimitar

    dimitar New Member

    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
    
     
  4. dimitar

    dimitar New Member

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

    falko Super Moderator ISPConfig Developer

    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?
     
  6. danf.1979

    danf.1979 ISPConfig Developer ISPConfig Developer

    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.
     
  7. till

    till Super Moderator Staff Member ISPConfig Developer

    You are corect, thats a bit starnge because I'am sure that we implemented this some time ago. I will have a look in the source repositorys where we might have lost this code :)
     
  8. dimitar

    dimitar New Member

    Hi,

    is there any progression of this subject?

    Regards
     
  9. till

    till Super Moderator Staff Member ISPConfig Developer

    I added this to the bugtracker.
     
  10. hairydog2

    hairydog2 New Member

    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
     
  11. till

    till Super Moderator Staff Member ISPConfig Developer

    Please have a look at your logfiles. Which errors are reported there when the restart fails?
     
  12. hairydog2

    hairydog2 New Member

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

    [Sun Jan 13 01:12:13 2008] [notice] caught SIGTERM, shutting down
     
  13. hairydog2

    hairydog2 New Member

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

    /etc/init.d/apache2 start

    does not work for me
     
  14. falko

    falko Super Moderator ISPConfig Developer

    Try
    Code:
    /etc/init.d/apache2 restart 
     

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