CUPS in RHEL does not recognize changes to /etc/resolv.conf until CUPS restarted
Issue
If we start CUPS and then then change /etc/resolv.conf by replacing the nameserver line with a new one, CUPS will continue to use the old entry until it is restarted. Running CUPS with the wrong nameservers (depending on the network environment) can cause CUPS to run very slowly as to be unusable.
Environment
- Red Hat Enterprise Linux (RHEL) 7.3
- Common Unix Printing System (CUPS) 1.6.3
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.
Close
Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.