blog posts

• DNS over HTTPS

  Sep 30, 2019 4:45 pm |  69  Views

  Mozilla has announced plans to begin enabling DNS over HTTPS by default for a small percentage of Firefox users in the USA, "starting in late September." This is motivated by a desire to improve consumer privacy on untrusted networks, but could negatively impact people on the University of Illinois campus network, so Technology Services is taking action to avoid impairing the default user experience.

  (see full post for details)

• Authoritative DNS Transition

  Jan 15, 2019 1:15 pm |  306  Views

  In the coming weeks, the authoritative DNS nameservers dns1.illinois.edu, dns2.illinois.edu, and dns3.illinois.edu will be migrated from commodity GNU/Linux servers running ISC BIND to new Infoblox appliances. In addition, the IPv4 address of dns3.illinois.edu will change from 204.93.1.5 to 3.16.92.183, a new IPv6 address (2620:0:e00:c::53) will be added to dns2.illinois.edu, and the default record TTL in IPAM will change from 7200 (2 hours) to 3600 (1 hour).

  No customer action is required as a result of these changes, and there will be no interruption to DNS service as a whole.

  (see full post for details)

• IPAM Upgrade: July 5, 2018

  Jun 27, 2018 4:00 pm |  205  Views

  On Thu Jul 5 between 5:00-7:00am, the production IP Address Management appliance grid will be upgraded to a new software release from the vendor (8.2.6).

  (see full post for details)

  Important Reminder for Legacy Perl-only API (PAPI) Users

  After the upgrade, you will need to update your installation of the Infoblox PAPI perl modules on any client systems from which you run PAPI scripts.  Do not apply this change to a production environment ahead of time, as the modules are not backward-compatible.

  RESTful Web API (WAPI) users do not need to take any action; previously advertised WAPI versions (1.4.2, 2.2.2) are still supported by the new software release.

• New Read Permissions

  Aug 22, 2017 4:45 pm |  31  Views

  On Thu Aug 24, additional read-only permissions will be granted to the default role for all IPAM users.  No service impact is expected.

  (see full post for details)

• Immediate Fixed Addresses feature

  Jun 20, 2017 1:00 pm |  276  Views

  On Thu Jun 22, we will be temporarily re-enabling the "Immediate Fixed Addresses" feature which is known to cause some long-term instability for the DHCP service. It is anticipated that sometime after this (possibly weeks later), one or both of the main campus DHCP servers will experience a crash event (in the worst case causing a 30-minute outage), after which we will disable the feature again to restore full stability. The goal is to provide the vendor with diagnostic information that they can use to implement a fix, so that we will eventually be able to re-enable the feature long-term.

  (see full post for details)

• IPAM Upgrade: Oct 4, 2016

  Sep 28, 2016 2:00 pm |  65  Views

  On Tue Oct 4 between 5:00-7:00am, the production IP Address Management appliance grid will be upgraded to a new software release from the vendor (7.2.12).

  Important Reminder for Perl API (PAPI) Users

  After the upgrade, you will need to update your installation of the Infoblox PAPI perl modules on any client systems from which you run PAPI scripts.  Do not apply this change to a production environment ahead of time, as the modules are not backward-compatible.

  RESTful Web API (WAPI) users do not need to take any action.

• IPAM Upgrade: March 24, 2016

  Mar 16, 2016 7:30 pm |  214  Views

  On Thu Mar 24 between 5:00-7:00am, the production IP Address Management appliance grid will be upgraded to a new software release from the vendor (7.2.7).

  Important Reminder for Perl API (PAPI) Users

  After the upgrade, you will need to update your installation of the Infoblox PAPI perl modules on any client systems from which you run PAPI scripts.  Do not apply this change to a production environment ahead of time, as the modules are not backward-compatible.

• Best Practice for Stand-alone CNAME Records

  Feb 23, 2016 1:15 pm |  217  Views

  We have recently updated the IPAM service documentation to reflect a new best practice recommendation for deciding between Host Aliases and stand-alone CNAME records.

• Dev IPAM Grid

  Jun 16, 2015 11:00 am |  53  Views

  The development IPAM grid, formerly located at ipam-dev.illinois.edu, will be down for the next several days to facilitate a hardware transition.  When it returns, it will have a new hostname: https://dev.ipam.illinois.edu

• Automatic renewal of non-.edu domains

  Nov 11, 2014 4:30 pm |  99  Views

  Effective immediately, non-.edu DNS domains registered through CITES will be automatically renewed by the registrar 60-90 days before they are scheduled to expire.  The Primary and Administrative domain contacts will receive a notification email prior to each auto-renewal, but will not need to respond affirmatively in order for the auto-renewal to proceed.

  If you do NOT wish to renew a domain, you must notify hostmgr NO LESS THAN 91 DAYS PRIOR TO ITS EXPIRATION DATE (or sooner if that deadline would fall on a non-business day) to ensure that the change can be processed before the next auto-renewal occurs.

  Transitional note: for non-.edu domains currently scheduled to expire before Mar 2, 2015, you must notify hostmgr no later than Dec 1, 2014 if you do not wish to renew these domains.  Individual reminder notices for these domains will be sent out within the next week.