Reporting

Why does PDF server fail and give error message 396 Restricting Firefox?

rsimmons
Splunk Employee
Splunk Employee

2010-04-23 16:30:22,153 WARNING pdfhandler:396 - Restricting Firefox to following hosts only: *:53 10.128.11.67 2010-04-23 16:30:22,153 WARNING Restricting Firefox to following hosts only: *:53 10.128.11.67 2010-04-23 16:30:22,153 INFO pdfhandler:401 - Executing ['/opt/splunk/etc/apps/pdfserver/bin/firefox-x86_64/firefox', '-print',

Tags (1)
1 Solution

Johnvey
Contributor

This is the default security setting used by the PDF server and does not represent an error. The IP address 10.128.11.67 is the addressable IP address of splunkweb (that requests PDF services).

Users may choose to disable this security check in pdf_server.conf via:

# Uncomment to allow the server to render web pages other than those served up by 
# an instance of Splunk
# restrict_to_splunkweb = False

Users may also expand the list of allowed IPs by changing the following key in pdf_server.conf:

# IP addresses of Splunk appservers (or other servers) that the pdf server is
# permitted to query - Deaults to any IP
# Both IPv4 and IPv6 network declarations are supported
# appserver_ipaddr = 192.168.4.0/24,192.168.3.0/24

As a security best practice, these settings should generally not be changed.

View solution in original post

Johnvey
Contributor

This is the default security setting used by the PDF server and does not represent an error. The IP address 10.128.11.67 is the addressable IP address of splunkweb (that requests PDF services).

Users may choose to disable this security check in pdf_server.conf via:

# Uncomment to allow the server to render web pages other than those served up by 
# an instance of Splunk
# restrict_to_splunkweb = False

Users may also expand the list of allowed IPs by changing the following key in pdf_server.conf:

# IP addresses of Splunk appservers (or other servers) that the pdf server is
# permitted to query - Deaults to any IP
# Both IPv4 and IPv6 network declarations are supported
# appserver_ipaddr = 192.168.4.0/24,192.168.3.0/24

As a security best practice, these settings should generally not be changed.

Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Quantify Your Splunk Investment Impact: Introducing Savings Metrics to Value Insights

Building on the foundation established in our initial Value Insights releases, we are introducing the Savings ...

Event Series: Telemetry Pipeline Management

Balancing Scale and Spend: Gaining Control Over High-Volume Metrics in Splunk Observability Cloud As ...

Kick the Tires Before You Commit: A Hands-On Tour of the Splunk Observability Cloud ...

Evaluating an enterprise observability platform usually goes like this: fill out a form, get a free trial with ...