DNS lookup failure(s)-bluecoat-sgos
Vendor: bluecoat
OS: sgos
Description:
Indeni will alert if the DNS resolution is not working on the device.
Remediation Steps:
Review the cause for the DNS resolution not working.
|1. Login via HTTPS to the Bluecoat ProxySG and go to the menu Configuration > Network > DNS to review the DNS configuration.
|2. Login via SSH to the Bluecoat ProxySG and review the system dns configuration by typing the "show dns" command.
|3. Verify your DNS server IPs and routing. Ensure that your firewalls or routers do not block UDP port 53.
|4. To verify your DNS service enter the following commands in the CLI: "test dns <server_fqdn>" where <server_fqdn> is a domain name such as www.example.com. If the DNS query fails, an error message is received such as: "Error encountered. Response error code: Name error
How does this work?
Using the built-in “dig” command, each configured DNS server on the device is sent a query to resolve www.indeni.com
Why is this important?
Even though DNS servers are configured, that does not guarantee that they work. Many products require a fully functional DNS server being set.
Without Indeni how would you find this?
An administrator could login and manually run the command.
bluecoat-show-health-checks-statistics
name: bluecoat-show-health-checks-statistics
description: Get DNS servers states and response times
type: monitoring
monitoring_interval: 5 minutes
requires:
vendor: bluecoat
os.name: sgos
comments:
dns-server-state:
why: |
Even though DNS servers are configured, that does not guarantee that they work. Many products require a fully functional DNS server being set.
how: |
Using the built-in "dig" command, each configured DNS server on the device is sent a query to resolve www.indeni.com
can-with-snmp: false
can-with-syslog: false
dns-response-time:
why: |
Slow DNS lookups could impact production traffic negatively by causing delays for client requests.
how: |
Indeni logs on to the device and executes the command "show health-checks statistics".
can-with-snmp: false
can-with-syslog: false
dns-average-response-time:
why: |
Slow DNS lookups could impact production traffic negatively by causing delays for client requests.
how: |
Indeni logs on to the device and executes the command "show health-checks statistics".
can-with-snmp: false
can-with-syslog: false
bluecoat-icap-state:
why: |
The ProxySG device is integrating with a variety of different services like ICAP. It is important to monitor the current state of the service.
how: |
Indeni logs in over SSH and executes "show health-checks statistics". The output includes the current icap state.
can-with-snmp: false
can-with-syslog: true
bluecoat-process-state:
why: |
The ProxySG device is integrating with a variety of different services like ICAP and DTTR. It is important to monitor the current state of the services, otherwise the organization might suffer from security risks and unavailability of external resources.
how: |
Indeni logs in over SSH and executes "show health-checks statistics". The output includes the current state of each service.
can-with-snmp: false
can-with-syslog: true
bc-identity-integration-connection-state:
why: |
It is important to make sure that the connectivity between the ProxySG and the authentication servers is up and running.
how: |
Indeni logs in over SSH and executes "show health-checks statistics". The output includes the current state of each service.
can-with-snmp: false
can-with-syslog: true
auth-response-time:
why: |
Slow authentication connectivity could impact production traffic negatively by causing delays for authenticated client requests.
how: |
Indeni logs on to the device and executes the command "show health-checks statistics".
can-with-snmp: false
can-with-syslog: false
bluecoat-external-rating-service-state:
why: |
It is important to make sure that the connectivity between the ProxySG and the Dynamic Real-time Rating Service (DRTR) servers is up and running.
how: |
Indeni logs in over SSH and executes "show health-checks statistics". The output includes the current state of DRTR service.
can-with-snmp: false
can-with-syslog: true
auth-average-response-time:
why: |
Slow authentication connectivity could impact production traffic negatively by causing delays for authenticated client requests.
how: |
Indeni logs on to the device and executes the command "show health-checks statistics".
can-with-snmp: false
can-with-syslog: false
steps:
- run:
type: SSH
command: show health-checks statistics
parse:
type: AWK
file: show-health-checks-statistics.parser.1.awk
CrossVendorDnsFailure
Failed to fetch the data: https://bitbucket.org/indeni/indeni-knowledge/src/master/rules/templatebased/crossvendor/CrossVendorDnsFailure.scala