Public bug reported: I think this is related to this
https://people.canonical.com/~ubuntu- security/cve/2015/CVE-2015-5180.html I have 10 servers, randomly one will start having this issue. it will be unable to resolve DNS. Curl will all of the sudden start reporting in newrelic about being unable to resolve host names, and it will throw SSL invalidation errors. restarting will fix the issue and it might be good for several more hours. I have spoken with rackspace techs and they reported to me that this was a bug related to ubuntu and a recent update so I thought I would reach out and see if there was any way I could help. ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1675436 Title: After Security Updates PHP 7 Randomly stops resolving DNS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1675436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs