Monitoring scripts for Zabbix

Template - 3Ware Controller

Allow monitoring 3ware controllers.

The script uses tw_cli util.

The utility requires root access, so the script has sudo usage.

You can use next command alias in the sudoers file:

` Cmnd_Alias TWCTRL = /usr/local/bin/tw_cli info *, \

/usr/local/bin/tw_cli info, \

/usr/local/bin/tw_cli show `

There are several value mappings in the template.

3ware BBU statuses

0. Not Present
1. Testing
2. Charging
3. OK
4. WeakBat
5. Failed
6. Error
7. Fault
8. Unknown

3ware opts statuses

1. OK
2. HIGH
3. LOW
4. TOO-HIGH
5. TOO-LOW
6. UNKNOWN

3ware statuses

1. OK
2. VERIFYING
3. INITIALIZING
4. INIT-PAUSED
5. REBUILDING
6. REBUILD-PAUSED
7. DEGRADED
8. MIGRATING
9. MIGRATE-PAUSED
10. RECOVERY
11. INOPERABLE
12. UNKNOWN

Template - External DNS checks

Allows to monitor the mapping DNS names to IP addresses on the selected NS.

The monitoring script uses dig and zabbix_sender utilities, you need to install them.

Description

Configuration files

Configuration files (etc/*.ini) contain next settings:

# Tested DNS names and expected IP addresses
[requests]
smtp.yandex.ru=87.250.250.38,213.180.193.38
smtp.mail.ru=94.100.180.160 

# Used name servers
[dns]
dns1=8.8.8.8
dns2=8.8.8.4

Notice: You should replace values in the [requests] on appropriate and copy files to /etc/zabbix.

Monitoring utility

Monitoring utility can be used as follows:

1. Testing DNS names which is defined in the configuration file. It sends the results to the server using the zabbix_sender utility.
2. Return discovery information which is used in the zabbix template.

# test DNS names in config
scripts/dig_status.sh -m test -c /etc/zabbix/google.ini

# discovery settings from config file for zabbix server
scripts/dig_status.sh -m discovery -c /etc/zabbix/google.ini

Notice: You need to add this script as a cron task to a monitoring server. For example, add the following lines to the /etc/crontab file

# dns monitoring
*/10  * * * * zabbix /var/lib/zabbix/local/scripts/dig_status.sh -m test -c /etc/zabbix/google.ini

Zabbix agent config

Zabbix agent config contains the definition for the check, which is used in discovery rules of the zabbix template.

Notice: You should replace path of monitoring script dig_status.sh in it and copy this config file to zabbix_agent's include directory.

Zabbix template

Zabbix template contains next discovery rules:

1. Discovery FQDN names and NS servers - google
2. Discovery FQDN names and NS servers - opendns

This tests use UserParameter dig_status, which defined in the zabbix agent config file.

The discovery rule:

1. get next information from script's config file:
   • REQ_FQDN - tested DNS name
   • REQ_DNS - selected NS server
   • RTN_IP - expected IP address
2. create two checks (Zabbix trapper) on each triple:
   • Request status for REQ_FQDN
   • IP address for REQ_FQDN

Template uses value mapping for statuses.

DNS request status

0   -> NS: OK
1   -> NS: Found additional IP in a reply
3   -> NS: Not all test IP found in a reply
4   -> NS: Not found records
5   -> NS: Return totally different IPs
101 -> dig util: Usage error
108 -> dig util: Couldn't open batch file
109 -> dig util: No reply from server
110 -> dig util: Internal error