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| Start | End | What System/Service is affected | What is happening? | What will be affected? |
|---|---|---|---|---|
| 2017-06-22 0800 | 2017-06-22 1000 | All NCSA hosted LSST resources | CRITICAL kernel and package updates to address Stack Guard Page security vulnerability. | Systems will be patched and rebooted. |
| 2017-06-22 0800 | 2017-06-22 0930 | LSST cluster nodes (verify-worker*, qserv*, sui*, bastion01, test*, backup01) | Deploy Unbound (local caching DNS resolver) | DNS resolving may have a short (~30 mins) delay. |
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