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Manual DF™ Site Monitor
Help Topics
System settings
Parameters of monitoring the sites group
Displaying and managing a group of sites
Displaying and managing sites
System settings
Mail Settings - choosing settings for e-mail features.
Admin E-mail - E-mail system administrator E-mail.
Path to sendmail or SMTP Server - setting the e-mail sending type. Path to sendmail program or to the SMTP server.
Parameters of Check - parameters of site checking.
Check Start - running the check module. Running the check module regularly is necessary for system functioning.
Cron - use the server's cron functionality for running the check module. (*/3 * * * * cd /home/df/domains/dfservice.com/html/cgi-bin ; ./smcrn.cgi check)
Scheduler - use the scheduler when running the check module. The scheduler is a substitute for cron on those servers where cron is unavailable. The scheduler is launched by the system administrator and stays in the server's memory. The scheduler is less reliable compared to cron, as rebooting the server stops the scheduler and leads to system shutdown. The following methods can be used to re-launch the scheduler after the shutdown:
- command line query, such as (for example, for 404, 403 error): cd _path_to_smcrn.cgi ; ./smcrn.cgi scheduler exec
- addressing a URL (for example, from other cron-enabled server): http://mydomain.com/cgi-bin/smcrn.cgi?scheduler
It is recommended to use one of these commands regularly with a 30-180 minute interval.
Time between restart - interval between scheduler restarts (in seconds). Scheduler restart is needed for the server not to close the scheduler as a frozen program. This interval can vary from 10 to 300+ seconds on different servers. If the scheduler is shut down too early after being launched, this interval should be decreased until the scheduler's work becomes stable. To avoid server overload, the system does not allow more than one copy of the scheduler and the check module to be launched at the same time.
Max Check Url - maximum amount of sites checked per single script run. When the number of sites to be checked is large, we recommend increasing this parameter or decrease the interval between cron launches of the check module. This limitation allows controlling server load.
Max Check Connection - maximum amount of connections used when checking (amount of sites checked at the same time). To speed up the checking process you need to increase this parameter. This limitation also allows controlling server load.
Time Zone – setting the time zone for the system time. This time is used to log and display the statistics.
Apply daylight savings time conversion? – enabling or disabling the option of applying daylight saving changes to the system time.
HTTP Request - parameters of HTTP connection.
User Agent - 'user agent' field. The 'user agent' field contains information about the user agent from which the request originated. This information allows separating site status checks from other user visits.
Referer - This field contains the return URL and can be used to type in your system's address.
Maximal Length Content - maximum length of the data chunk downloaded from the site while checking (including HTTP headers). This allows decreasing bandwidth usage when checking sites. Minimal length is 100 bytes.
Mail Settings - choosing settings for e-mail features.
Admin E-mail - E-mail system administrator E-mail.
Path to sendmail or SMTP Server - setting the e-mail sending type. Path to sendmail program or to the SMTP server.
Parameters of Check - parameters of site checking.
Check Start - running the check module. Running the check module regularly is necessary for system functioning.
Cron - use the server's cron functionality for running the check module. (*/3 * * * * cd /home/df/domains/dfservice.com/html/cgi-bin ; ./smcrn.cgi check)
Scheduler - use the scheduler when running the check module. The scheduler is a substitute for cron on those servers where cron is unavailable. The scheduler is launched by the system administrator and stays in the server's memory. The scheduler is less reliable compared to cron, as rebooting the server stops the scheduler and leads to system shutdown. The following methods can be used to re-launch the scheduler after the shutdown:
- command line query, such as (for example, for 404, 403 error): cd _path_to_smcrn.cgi ; ./smcrn.cgi scheduler exec
- addressing a URL (for example, from other cron-enabled server): http://mydomain.com/cgi-bin/smcrn.cgi?scheduler
It is recommended to use one of these commands regularly with a 30-180 minute interval.
Time between restart - interval between scheduler restarts (in seconds). Scheduler restart is needed for the server not to close the scheduler as a frozen program. This interval can vary from 10 to 300+ seconds on different servers. If the scheduler is shut down too early after being launched, this interval should be decreased until the scheduler's work becomes stable. To avoid server overload, the system does not allow more than one copy of the scheduler and the check module to be launched at the same time.
Max Check Url - maximum amount of sites checked per single script run. When the number of sites to be checked is large, we recommend increasing this parameter or decrease the interval between cron launches of the check module. This limitation allows controlling server load.
Max Check Connection - maximum amount of connections used when checking (amount of sites checked at the same time). To speed up the checking process you need to increase this parameter. This limitation also allows controlling server load.
Time Zone – setting the time zone for the system time. This time is used to log and display the statistics.
Apply daylight savings time conversion? – enabling or disabling the option of applying daylight saving changes to the system time.
HTTP Request - parameters of HTTP connection.
User Agent - 'user agent' field. The 'user agent' field contains information about the user agent from which the request originated. This information allows separating site status checks from other user visits.
Referer - This field contains the return URL and can be used to type in your system's address.
Maximal Length Content - maximum length of the data chunk downloaded from the site while checking (including HTTP headers). This allows decreasing bandwidth usage when checking sites. Minimal length is 100 bytes.